21st bomber command tactical mission report 96, ocr

8/6/2019 21st Bomber Command Tactical Mission Report 96, Ocr

1/55

By authority ote.G., Twentieth Ajr Fo e~ VJv(lt::_'f..."(Date) t-I"n-

U ISS ION NO. uFLO WN 2 APR 1945

COpy NO.

HEADQUARTERSXXI BOMBER COMMAND

APO 114


2/55

8Vao21.,aa. .. .. . . .

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(to ,

Op.PPar I I Balbarcll.P t II I - l l ~ h t BnpD8-1DI 0hDrt:aPart IV - Radar ort:Part V - Owmery Report

- Wenther P u t I - el1tber Po.rt II - Cbo.J't - Poreenat elLther ....Obaernd e : l t h e r . . Part I I I - Prognostic ~ Part IV - Synoptic llnp

IBADQUARJXIBOIIIDCCIOIAIDAPe 23'

tACTICAL IlISSIOW RG'O

Annex C - Cammunlol1tions Part I - Ro.dar Counter UeuuresPo,rt I I - RlLdio

J ,g l J

Annex B

'l'a.ctio

a 1 . of anten

Target I B1 tach! Ail'Oratt C c a p ~ IDP- orF i 1d Order 0 62

Annex D - Inte l l igence . 86Pl1rt I - Enemy Air Oppolition 2SPo.rt I I - Enemy Antil1ircrntt aspl1f t III - DIlmQ.g& Assessment 30Sectlon A - Target 2009 30Section B - Target 792 3 '

Annex E - Oonlolldnted Sto.tlst10nl SummQrY Annex F - XXI Bomber Commo.nd Field Order

. . .nnex G - Distribution . . . . . .. .

. .... 3751

Prep" ed By:A-2 SeotionXII Bom er Co d


3/55

SUBJECTs Report of Opera.tioM. 24 April 1 9'5

(2) Second ry Tp,! getl The ol ty of Sbhuoka WQB thesecondnry tnrget .

..a1

BEADQUARrIlRSU I 80 lit 0QiD.U1)APO ZH

1

b. Torgets Speci f ied.

a.. le1d Order 6do.te4 23 April 1946 directed the?Srd 51'Mngs to c.tta.ok c.n indus t r ld ta.rget n the 'lG1cJO areaXXI Bomber Comma.nd Uission No. 96.

TOI

(1 ) Primnry Tn r n t . T get 2009 the B1 0.ch1 . u ? l l l l P ' a r ~Ca:apnny engine orles ..t To::.cbikawn. wna both the pr1alary v i wal aidradar ~ r g e t .

(3) No l a s t resor t ta.rget was speci f ied.2. TlW'EGY &'ID PL '; OF Cl'EUrI S:

0 . . Henson, ro r Seleotion of Torgetl This Co and ~ comm'tted to str i lee Kyushu ai r f ie ld il16to.l1 ...t ions in support of the Qct-nawn invasion. However. on 24 April the weather was unfavoro.ble inthe Kyushu aren nnd there was 0. more fnvorable prediction fo r the Tokyovic in i ty , resul t ing in t\ decision to s t r ike 0. target In the l a t t e r a.reo..I t wc.s decided tbo.t the 3 Wings oou ld eaoh furnish 4 squo.drons for theo.tto.ck without in te r fe r ing with p l ~ n n e d Kyushu a.1rfield s t r ikes o.ndminin'" op rat ions of the Co nnd. The 81 tachi Aircraft CODlpo.ny p lnn twas seleo ed because it WllS a ta rge t of suitable s h e f':lr the forcec . ~ l o . b l e .

b. Importnnoe of Tvge t : The Hi cbi Alrcr t COllpo.ny En-gine 'Iorks a t Tachikawo. i s c. new plc.nt whose buildings oover an area.of opproximo.tely 1.000.000 squo.re feet . The production r ~ t e o.nd typeof engine mnnufactured in the plant i s not knovmf however. proximityof the r ~ o t o r y to the largs T a c h 1 k a . w ~ Aircraft Assembly Plnnt suggestedtoo'!: the flow of engines from the ta.rget might be to tbe.t out le t .

c. DetAil s of PIQ,nning - Opua:t1onal:(1 )

-1-


4/55

1. All a.1rcratt ,.. to GaI'!'Jpurpoae bOllba, tuaed lIloo . . .coDll delay DOS. ADd 1l0'JlelU.I. ,

j . l ~ J l J . I

i . The specified 1ntervo.loaetar M1:t1l1tPfo r IIlinilllWD trt.1n relense 1n order to obtain the poeate OIIIl8llL-tra.tlons on the target.

(b) Bombprdier's Ploppin, l

The 1Iloo..8OODll delcy DO tbomb bure t 6 to 10 r e benellth the root ill o rd er to 118 -1 1 as bu11diDt;s. 'l'be "elq oJ.1 t as tol evel burs t to n eu .is....

J. PrincipGl bu1141np or 'the tg le - st ory , suel -f rQ l le , sbort-epllJ1 structurtlS DOt subjectcolla.pse. Against these the 5OO-poun4 pnwal .pupOiebeca.ulIe the expected l u g e nWllber of bi t s sbollld Ollue u:11I_to bUildings and building Gontenta.

1. InGendinri.. were not GolII 48,..a ill bodlond determination since the productive bUildings were ot re111tl..1ylow combustibll1.ty lUld 77 per cent of the totGl root Ql'ea . . ' DOneoOOll-bus t lb le .

1. One aiming point Was selected the centerof the lcrgest building in the plan t . A proba.ble c ir cu ln r e rr or at1200 fee t included a ll i n s t n l l ~ t 1 0 n s in the plan t .

J . Choice of an a.x1s of o.t tr .ck depended OD 3fnetors: wind direc t ion nnd veloci ty , al t l tude of r . t ~ e k . nnd f1gh1;erescort . TbD predicted wind WllS from 265 degrees c. t 55 111188 per boar.BeCo.us8 of f ighter escor t , the selected bombing n 1 ~ i t u 4 e n l 10,000to 1 ,000 feet . The desirllble down-wind ru n to the tnrget. ft8 DOtfec.sible beco.ulIe l i t . Fuji IUId the mount 1M thnt would have hn4 to beused as in i t i a l points were too high to be uti l ized on tbe basis ofthe selected bombing i tude. This c o n e i d e r ~ t i o n resul ted 1n tbsselect ion of a project ing p.o1nt. in . S u . r u ~ GJl (3501301 - 138 'T3O&) I1IJ thein i t ia l point. From th i s point a 60-m1le run of 36 degree. t rue to thetnrget was designated. Estimated time for the run was 12 minutes.

~ I t wns estimated that dr i f t would be 1 degrees r ight and thnt ground speed would be 292 miles per hour.

(2) NAvigatiog PlAnning:ReMons for Choice

BesetoIwo Jilllllto ing Assembly In Zone 2. Il S per XXI BomberCo and Taotioal Doctrine.343530. - 138518to350l30N - l 3 B ~ 7 3 0 E (IP)to

Departure point lImS lU1 ec.sily dentif ied peninsula t


5/55

1. Data. of compa.rAbll tormntlon . lone athe Cl1tltude phoned indicated that avera.p o.1rcrQit of the 7Srcl . DI"/Ould require ful l wing nnd conter wing tnnlc. to r D. tota.l tllil loa.cl 0a.pproximo.tely 6750 gallons. I t wns estimated thnt nvurnge plano. ot tbaSl5th and 3 l ~ t h Wings would require an additional ful l bomb bny tnnkfor Co to tal fuel load of npproximo.tely 7300 gCl110ns.

TbiS l e t tued to &ft14 t lak arofb i . eo.Il1y lb n lecl po IS DOPuj i f t01001:84 in eftt a r p t had to be b. 'be4.Tbi. euny ldentl t le4 IlLll4. . . .1:8pob t OD. the oOll,8t ~ .oloo1led'l'b1. WILl 1Mt bo 04 . . 71t.aJl 8 ag SlllIO .. en route to terce

.11.21

(a.) P l 1 ~ t P Iu lbomb1J:lg run, wero pI a n ; 0 ~ 4 F 1 t a ~ 0 ; r ~ : i i ~ ' A880 110' were 1:0 'be IIll.d

to3533 13835Sto3440N - 138001to3415N - 138158tolwa J1.mA to BOJIe(3)

TQI'ptto3551J1 - 139aE

~ 0 lIID.XimUl:l or minimum bomb lorA wa.a lrpec1fle4I t ;YD.S estim".ted tbnt o.verc.ge nircra.f't of th e 73rd and 313th lagswould be tUlle 0 c ~ r y bomb 10:u1s of approxJ.IU'tely 10,000 to 12,000pounds, ",h11e the 314tb ing a.verngo wollld be . prOx1.mntely 9000 pOUDda"'he:'lilJll ion loo.d as es ::.ted a t 1500 POllndS.

(0.) The route chosen WOoS the best possible from a.radar s tnndpoint. wi to tho Innd-wnter contrnst of the la.ndtr.l1 andi n i t i c ~ points being exoellent.

(b) The a.x1s of n tto.ok of 36 degrees t rue pouessedmore rndnr oheck points tho.n the other r o ~ t e s considered.(c) Tho ' tnrget w s Do diffiotll t one from the radarstandpoint because i t w ~ 1n n complex of targets on the outakirt. otTokyo.

(5) RndQl' Counter :.Jeg,Bures I Routine searcb we-s to beconduct d by 1 Observer of "the 73rd ng.

(6) Qogyp!llli9nUoDsl XXI 8(1Jlber Command SOP on fiY1terbomber co unicatiolUl, tro.ns ssion or strike and contnct reports, andproceduros to be used in IFF operntion 196re th e snme as those outlinedin Ta.ctlool lssion Report for ~ s s i o n s No. 56-63.

(7) Fighter Escor tl The 73rd Wing wns to send 3 8-29'sto lwo Jlmn to act as no.vlgntlonnl e scor t f or the VII Fighter Commandfighters that were to tnke pnrt in the mission. The 3 nnvigntiona.loreWs ?Oro to a.ttend the fightbrs J ' gohoro.l briefing.


6/55

d. Detailll of Planning - Inte l l igence,

Cl'G8h boctTIDlon, Se.1po.n. o.nd orth Flald, Ouoato.lce-of't o.nd boding.(b) e C

S u p o r ~ o rcro.1't to orb i t there turn p a l l s ~ e of' the lIlAin force.

1. Three Dwabo Il1tplnnea tofollows I 3000 - 13930E trom 240130 un 11 t U r c r ~ t p aeelto bans . 21530 - 1 045! frolll 2402451 unt i l o.1roratt ,.a..4 OIl 1 ' 8 ' 1 ~ "to baaes. o.nd. 20005 - 14330 unt i l 0.11 11lrorQi't pa. . . .d 81l route toat r1ke.

! Jl

(ll) Thethe mi loD llod requested to furo1.h ~ v u 1 1 G b l _ t eo i l 101_reacue purposes. The follow r a c l 1 i ~ l e l were nallsn

1. Two lubllLO.r1nee were to be at"t lon_4 4111'1the ent1re .181110n a t 3400 - 1381sE l1Dd 32001 IHOOB

(8) Ait-Sell Reloue I

(1) Enemy All' OppOait1pD I It waa :lJl lclpo.ted thc.t enn ra i r opposition would be he vy because of the 35 eoeay a1rcratt tba10were believed to be in the tllTget Cltea. All or these would be Ilble toattnck during Il d ~ l l g h t mission. An additionlll oo08ideration was theboUef tha t the JaplUlese Air Force would want to di8play a good defenaebefor e heavil y populated Tolcyo. For tha t reaaon the fighters were exp e e t ~ to be ~ g g r e s l l i v

(2) Enemy Antia l rcrgf t :

J. Two IllU'tllce n l l e l e were 0 pllvol OS 0_. . .,1 a t 2800N - 1&015 f'rom 231930Z unt i l the end or the 111 lOll 8Dcl 1 A1800N - 14430E during the ent ire millslon.

(a) In the 1 edi te vicinity t the ta rge t therere 18 he vy guM. Eight i lea west of the t ~ g e t there were 48 addi t ional heavy guns. The ent i re defenses for Tokyo p rope r inc luded

420 ndd1t ional henvy gun(b) To avoid the ooncentrations ot guns. it WllSreoollOOnded thc.t ai rcraf t attQ.ck fro::l the so thwest or west. A with

dr:l.wnl 0 the north ~ then west out of the h D ~ V Y flnlc nreo.s Wll' pre .fernb1e. I t WQ.S recolllllended tha t en route from th e ta rge t to llUld'send th o defense s o f Sh1zuoka and Shimizu were to be avoided. The baseo.l1:i tudo of attClCk J'CoomDIsX\iled WQ.lS H:.OOO feet .

SSION:0.. Toke-off r TQlce-otf 'II'l1S QcoolI\Plished a3 follow. I

'; '11'01' tairbofne

Fi r s t Aircrni 'tT".ke-orr

Last II ref tTw-oCf73rd313th31


7/55

(4) 1ne Il1reraf'1: were DOD-etfeo1:1

i l ~ l i l

o. Our Tara1;:

(2) . : & l U 0 : M l l l i l ~ . & I I I _ 1 o I lof bo bs on SM &uolca. Y18Ua.llyrom l l . 00 to 12 150 tee t .

(1) Primary Tlln1;: Duo to a l ightore th e tcu-get l t ae l t 1m8 41t t lcul t to ldeatl1'y 11 &1-'_.'"near i t . iDd was t roa 220 degre.. 110 kDOt llDIl 0to 2/10 low cloud and I I 6 /10 high cloud., Vl. lbn 1:7tot.. of 101 roraf t dropped 473.5 toM ot bo OD .. t . A 1 ~ " , t :utUly from 232352Z to UOOO5I at a lt ltQ4e8 t ro l l 10 000 to

d. Souto Bn,clt I Return to bD.8e8 _118 aa4e .. br l . ediv1dunl : r l rcrcft at tor I I l e r t turn breaka.wny ro the pOne v bt lon 1n course WIlS made to avoid t lnk In the nolll1t;y orsouthwest of Pujlycma. Eleven B - ~ ' 8 lnnded at lwo J l due tofuo1 shorto.go. auo t o ba. tt lo c l u : ~ and S due to olwlio 41t t l -cul t i 8 .

b. BAyte Out: The rOllte8 flown were 0.8 oro.1't prooeodlng IndiTlcludly to Wing &880llbly pointetho 1171ng8 tlew to oon trol point8. with tl 'b01ll1 gC\t1 0n method8 were cele8t ia l . rel!:u-. aDd Loran ODe _qll313th 171ng encountored aoourate flak at NUIIa.Il.

G. F ight er Escor tl Due to l ldveue 118 thor oondltlons at lwoJ ' there wns no f ighter escort .

f . LQnd1ng:: .klrcr ~ of the IIIa.1n force l11!ied l l t base8 1181'011O\'1S1

Firs t LMding Last LQ,ndlllJ73rd 240605Z 240740Z313th 240613Z 2409l5Z3Hth 240701Z M0816ZTot0.1 240605Z 2409l5Z

g. ~ (For dotll11s see Annox ~ Consolido.ted Sto.t18tlo0.1Summa.ry). Flve l rcra t were los t due to the following rOllsonSI(1) E n a ~ ai rcraf t : 1(2) Enemy ant1alrcraft1 1(3 ) Enomy nntlc.i.rcrc.ft end enemy drcrcd ' t combined: 2(4) Other causes: 1

h. Oper,tiono Symmpry:(1) Ihv1mt1on I (See Annex A, Part I , for tr ck oh t . )

-5 -


8/55

01

(2) Bombing! (See Annex A, ,cim1ng point WIlS only visible tor f i r . t u n i ~ . over tb l t ~ . ..t .l ~ t o r obscured boca.use of smoke.

(b) !C_!Alt..JUl..ILII1RlLIIUJ.aalpntod bnd welltber cond1tlona on return to b e l W l J - l ~ L J . o "wn.s pla.nned, thereby reducing the b o . lollA t t co\ll(4) ~ (See Annex .. . Port IV, Cor repo )(5) GJmpcrv! (See 1.nnex Po.rt V. tor repo . )(6) Air-SeQ, Re.cue! One a.!rcr:1ft ditcb&d I l t 3630

13S54E. Two crew members were believed to Mve ba.lled out lLDd 6 118ftlOre reported olghtod on ra l ta . J. 2-day .elll'oh brol lptnept1 re. \ l l t8.Anothor 8-29 Wll. mining en route to bo..se a. short di. tMce bO,yun4 tMJc.po.no se const nt 33 25N - 13S30E. ;. 4-da.y &Oll.l ch endecl with DOt;a.tlveresul ts .

.Ln.aa bUo. o.nd ths cru1ae

.1. IQitiAl e lU!" pp4 y"!la1y1 C 1:10Squ drOft llIIaembly point ne Iwo Jill11 ... made I l t 5000 to 8000Sqll:.clron a.88embliea required an avero.ge ot 30 a i_ te . p,1':1ID4td.,(11) Rvn t i ye pC HiHlpp " Plpm. .

lIlDde

(3) ' 1 1R t EDdDoerlUI (See Annex P J orcharts , o.nd J.nnox E, Consolidated Stllt1at1cal S\11111QJ7 to r )

.!.b) ' IncU'lI1dul11 a.1rcra.tt 10

1, leather: (See Annex 8, for doto.l1.), WGntber conditionsoncountered on this mission were nlmoat nil predicted.

j . COmmunications I(1) Rader Counter MAnsure'l (See ~ n n e x C, Po.rt I , fordeto.lle) Tho generQ1 survey of Japaneeo radnr ohara.cteri.tlcs wns oontinltod.(2) R.a41.2.1 (See Annex C, Pnrt I I , to r doto.1l1). Thir

teen str ike reports were received. No net discipline o r s ecur ity vioIntiona were reported on this mission.k. Intell igence Summary-

(1) Enemy Air Oppositionl (See Annex D. Pa.rt I, tordetcd.ls). Enemy a.ircraf't mnde 379 o.t1:ACke. Ona B-29 loe t toeno y f ighters nnd 2 more were los t to enellY a.1rcrn.ft nnd a.ntio.1rGreEt combined. C1o.ima wore 14 destroyed. 2' probnbly destroyed, o.nd22 da.moged.

-6 -


9/55

dGto.l1.).

J .. SUi J.1(2) oemy lurtirrlrqrnt1;' (See AJmex J) .Pal"d.oto.1ls). or the o.1rcrntt that bombed to.rgets, 4e 8 1 ' . ' ' ' ' ' ' - ~ damClgGd by flnk i however, most of thG damo.ge wu IIl1DaI'(3 ) Puna 40,,"-1;& (Soe Annez Dt PArt In

(0.) Approx1mo.te1y 63.5 per oent ot the p r tcu'got' 8 toto.l roof o.reo. W(,\8 destrOJed.(b) or the toto.1 roof o.rea. ot To.rget 198, tbilTo.chiko.wu Aircraft Company, 10.4 per oont waa dostro,yed.(c) Five smo.ll buildings ot Target SOu. SUIdLight lioto.ls Plo.nt o.t Sb1luoko., reoeived d1reot bits. 81Jct7 b_burstrsWtre vis ible on the west edge ot the plo.nt.

-7 -


10/55

M&,.lon No. gO

Part I - Nnvigntion TrQ,Ck ChartPart II - Bombo.rdier's ReportPart I I I - ll'l1ght Engineering CbortaPart IV - Radar ReportPart V - Gunnery Report

:u Aprl1 19'5


11/55

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r y---- 7!rd.( - v r ~ - -- - =.-_-_-315NOTE:

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K r T ~ - l o - J l M A73 231956l 232027lNI$HINO-SHlMA

3130 232017Z 2 3 2 \ 0 5 ~ IWIWO-JIMA

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PARTT

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215

~ P R I L 1945

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OKINAWA

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1-------1-----....;--'*"-T--+=----20\ \ .\ \\ "I I \ \ \ ~ ::.ILA:::.N..O " - F A ~ L = L ' - TAHGET _=LA:::N.:.::O


12/55

4. The 3Uth Wing W!l.S 1C'.Bt into tho tnrge1; a.nd toLlDCl it evenmore obscured by smoko. One squadron hit th o AP, 2 dropped bolab.bot'l'lOon 2000 ned 3000 toe t from the AP. 11M 1 h it out8id. the area.5. No troublo wo.. oncountered by any ot the Slngs in p lo k1 qup tho 1n1Ual point. but the AP :lS visible only to tho ir81; IlttaGlcing for ce s of tho 73rd " log.

'IiRT I I - BOIIAJU)lEB'S BROBt1. Tm o.ltltude of atto-ck varied trom 10 000 to 1 500 tth the generlLl nxill of a.tto.ek being 36 d.p-o.a ue !be ord.of c.ttnck used S:l8 followa r the 73rd Wing wna t i . . .1; iatotnrget. followed by the 313th nnd 314th Ins . at Du1;e ID.'baI"'ll"lLla_2. he 73rd ' ,lng found 0. c1enr tart. with C W ccmdl1:1o. . . P -\"'.111 0 of the ' .quadroaa h i t the tal'r;et with boa...11 oe -1:ered on th e at ing point. In the lend i r c n t t ot 1;bD 1;hird .q

II. rack mo.lfu.nc io n cnu.ed i t s bombs to Mng up 0 r the tarr;e1; ..resu.l11 i t bombed thll secondary ta.rget. Th3 bombs ot the fdron were orf th e to.rget due to fnul ty synohronhati01l.

3. t.ben the 313th ".'lng etto.clced the prlllW'y target , it was p1y obscured by amoke, Three of tIN squa.4rona bombed into 1;h. smoba.nd the other squo.dron. llS 0. rosult of f aul ty idon t if ica tion , h it tbewrong target . th e Ta.chiko.wt\ ircraf ' t Oompany.

-10-


13/55

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14/55

000.5

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15/55

PoRT IV - R.1PM RWORT1. Equipmept Portonpnnce I

a. ;. -APQ-13 WClS 68.8 per cent oper'l'tive over the targe'tlUld 92.5 per cent op ra't1ve upon lo.ndinr;. The were no malfunction.reported by any Ie n1rcrott .b . The nTOrnge maximum range of -:iPQ-13 ,.,.o.s 63.4 nnutico.l

miles . nth the a v e r ~ e IIllJd.mum range being 50.8 nnuticnl miles n' t1 000 t ee t on landfall point .c. AH-;.PN-4 W'Cl' operationo.l in 93.2 per oen't of the airoro.tt .d. 5CR-695 nnd SCR-718 were 100 per cOnt operntlonnl.

2. RadAl Nayigationl There were 1050 L o r ~ n fixes reported, withthe average maximum range being 1300 nnutioal miles.3. CommentJl There were no radar relenses, nIl bombing being

done vi5uo.lly.


16/55

PN': Y- GtOOiW RfORt

1, e'D'!mltlon Reportl To.t f1 r in , aM comb t f i r ing t i ,;areaa rc p re sented in Annox E, Consolidated S a t i s t ica l SummAry.

2. Gun Loadinc. Tho 3l3th .ing loaded E;\UI' bot . the 3l4.th cold.3. GuMO" Eayipupt porl'0lJRAnco n. AI rol lgy. , Contral firiD&control syatelll8. 99.7S por oon1: opera.tivc. and .5 0 oaUber machine guns,

98,20 per cent opera1:ivc.


17/55

,gRJlllli l i .IlA.L

B

Pal' I I - Cbar1: PoroGu.a't ather n .Ob..necl . a ' t _ r


18/55

Q Q 11 f. l . i !.I i 11 l.tPARt I WEATHm Sum:MY

PL ING FORECr,ST6-7/10 low cloud, base 1400 t t , tops 6 to 14,000 feet, withoccasional m o d e r ~ t e showers during dny boc6mihg frequent l ighter showers during evening and night; 6/10 middle cloud, 10,000to 12,000 t t ; 10/10 high cloud at 28,000 f t . These conditionsare to be associated with easterly wave ahead of storm 300miles to SE of GuQlll, moving at 7 knots to the 'West.

ROUTES: To lOoNJTo 200NI

To COflstj

SQlII8 conditions as at bases.7-8/10 low c loud . base 2000 f t , tops 5000 f t withfew light showers.7-8/10 low c loud, base 1200 f t , tops 7.9000 f t withs c ~ t t G r G d moderate showers; 6/10 middle cloud, 11,000to 14,000 f t .5/10 low c loud, base 2000 f t , tops 5000 f t ; 4/10middle cloud, base 11,000 f t , tops 13,000 f t .3/10 low cloud, base 2000 f t , tops 5000 f t .

TeRGETS: 3/10 low cloud, base 2000 f t , tops 4000 f t ; 7/10 middle cloud, base 15,000 ft , tops 16,000 f t ; 8/10 highc loud, base 24,000 f t , tops 30,000 f t .Nagoya. Kobgj 5/10 low cloud, base 2000 f t , tops 5000 f t ;7/10 middle cloud, base 12,000 f t . tops 14,000f t ; 5/10 high cloud, 27-29,000 f t .~ 8/10 low c loud, base 1800 f t . tops 7-10.000 f t with

Same upper cloud as Kobe area,DEGISION: Schedule small scale a tt ack against target near tokyo to rbombing level under base of middle cloud, early morning ot24 Apr il w ith return planned for daylight.

4 ~ 1 0 low cloud, baBe 1600 t t l top6000 f t . scattered l ight showera inthe l.rell..

Operg.tionQl ForecqatBo.ae a.tTpb-gr r . 4/10 low cloud, bllSEI1400 t t , top 6.10,000 t t , 4/10middle oloud, baae 11,000 t t ;10/10 high Gloud, ba.18 2e, 000 rt Jl ight ahowers in l1l'.a. reducingvisibi l i ty h'0IIi 15 'IlI11GII to 2 milsa.ROQ'te.QUI '9 190Ja 4/10 low olol1c1,baa. 1400 f t , top 6.10,000 t t l4/10 middle olouc1 at 11.000 f t .10/10 high c1ou4ll o.t 28,000 t t lviaibll i ty 15 adl.a, lowering to2 IlI1lea 1n ahowera.19' 1;0 UOB. 8/10 low oloud.bde 600 t t , top 8.18, 000 tt 8/10 middle clouda in larerabetween 11,000 tt a.Dd 14,000 t t l6/10 high 01011c1 at 28,000 ttlvia1b1l1t)' 10 II1l.a, loweringto 1 1II11e 1n abowers.gOi 1; g ;nOXI ellO low clollds.lade 1500 t t l tops 5000 ttf lv,10midelle olou41 nt 13,000 r t I 3/10high 0101lc1a at 30,000 t t l

Weather Encounter'

To 190N. 4-S/10 low clouds, bBae1500 rt, top 6-8000 t t , 5/10 higholoud. baa. 26.000 f t l a O o . ~ e r o 4l ight showera low-ring visibil i tyfram 15 milea to 2 miles.esOJJ to ~ h cop t l 8.10/10 lowolouds, bBa8 1200 t t l top 8.10,000tti becoming 3/10, bc.ae 2000 f t , top6000 r t nttor 210Bl 10/10 middlecloud in lqera bat'll 'un 10.000 tto.a4 22,000 f t clea.rlng at SloN;5-6/10 high cloud. baae Ilt ~ . O O O t t ,l ight to IIIOdernte rnin and tlU'buleDOebetween 2501 a.nd 28oB. Light to modero. te rime iCing o.bove 13,000 rtfviaibil i ty 12 milea, lowering to imile in ra.in.


19/55

31 0 11 to TIllUt AreA I 1/10 lowcloud. b ~ 1800 f1;, "top 5000 tt;~ T / 1 0 middl cloud, be ODU.000 tt IUld 12,000 tt; 7/10 highcloud t 28,000 t t l via1b1l1ty 12mile., 1 r1ng to 6 m110s 1n hn l0 .TWgGt I 3/10 low cloud, bllso 2000f t , top 4000 f t ; 7/10 middle clcud,baso 10,000 t t , top 12,000 f t l 8/10high cloud nt 28,000; v1B1bllity 12miles, lowering to 3 mile. in haze.loUt!R9tu.m1ngl

SOJ:le c.a route outgoing.

0 - ~ 1 0 low cloud, bll'o 2000 f t , top4000 ft} 6/10 high o l o u d ~ bllse ~ 26,000 f t ; vis1bility 10-18 milesin l1ght hlllO.

Snme Il S rou"te outgoing.Bil,e 9DReturn I 5/10 1011 cloud, besG 1000f t , top 8-10,000 tt; 6/10 middlecloud botween 11,000 tt Dnd 12,000t t l 10/10 high cloud I1t 28,000 t t ;vis ibi l i ty 15 miles, dropp ng to 1milo i n .howers.

Same b ea At tu:o-ott.

lflndo AlOft - ForeCllStBnao to moN 2()O1 to 2gN 29 to 351 Tc.rget

20,000 60/15 -8 250/33 -11 260/60 -18 14.000(260/52 -10)15,000 60/1S 8 240/25 -2 260/ S -8 12,000(260/46 .7 )10,000 60/20 12 230/18 8 25


20/55

I'".=.=II'~

e l\ )

0U 0 11t ::tJ--e t. -ro \Q\J\;~ I 9

V' l -'5 - N N t.l C1' N N Colc:: V1 V1 0


21/55


22/55


23/55

J . I ~ l j l

c

CQMM!lIIICitlUDIS

Part I - Radar Counter ~ Q . 8 u r 8 .Pan IX - Radio


24/55

PHRT I - R.J.D .R OOUNT,ER ME,:.SURSS

1. Purpo,e: The purpo,e of RCM search on this mission wns tocontinue a general survey of Japanese radar chnrccteris t ics for f re-quencies in the region 80-1000 mcs.

2. Method; 80-30Omc 1 APR-4.,L 1 lJ'A-Z!>80-10COma 1 APR-4+ 1 ;J'j,-63. Resul t s .

no The signals intercepted in the t ~ g e t area were asfollows ILocation of Origin Reli-Ohn,rg.cteris t ics Intercept nbil1ty .lle00078 2500 03 3540N 13940E 21 121 S GL OTM300081 0000 00 3540N 1:5940E 21 124 S El f CHIOOW; 0000 00 3540N 13940E 21 124 S El'! 0010100105 0000 00 3540N 13940E 21 124 S EW 0010100109 0000 00 3540N 13940E 21 124 S EW 001010011 7 0000 00 354.0N 13940E 21 124 S EW 00101

00142 0000 00 3540N 13940E 21 124 S Ei1 0010300155 0000 00 3540n 13940E 21 124 S E1 0010300181 0000 00 3540N 13940E 21 124 S El,' 0010200195 0000 00 3540N 13940E 21 124 S EW 0010200190 2500 03 3540N 13940E 21 121 S GL 00400200 2500 12 3540N 13940E 21 121 S GL 004

b. Signal a i nt er cept ed to and from tho t a rge t g.reg. were asfol lows. Location of Origin Reli -Cha ra cte rI stic s I nte rc ep t Method abi l i ty00078 1000 50 31305 13945E 21 121 S ET CHIoooN 0800 32 2730N 1'0458 21 121 S E\1 001010100092 0800 32 2730N 140458 21 121 S ElV 00101010 O O 9 ~ 0600 32 2730R 14045E 21 121 S E\V 001010100102 2000 12 3100R l4.000E 21 121 S 00 000000000105 1000 50 3130lf 139458 21 121 8 ElW 001010100158 0000 10 32301 1351408 21 121 S E\V 0010300193 0100 12 2630N 141008 21 124 8 EW 0010200500 0500 00 3319 139308 21 121 8 00 00000

"- a .w , , The APA-23 fllnCt10ned 5lltillfa.otorily. An o.ccurntooount ot the number of d91all l re00r404 'WtLlJ lUlt poea1ll1tl: lnK tbo i 'requenoya p r o ~ 1 . weU ahown. The a1gnale reported on lJ'J...23 aro identifIed1.D 'the l i a ta of pl1l'ngraph 30. and 3b by the noto.tion -124-

PART I I - Rf,pIQ

1 . S1;rlg Report. . '1'h1rt6en a'tr1lce reports (bomb. o.wny) mea. . . . re reoe1ved bJ the Qroun4 StatIon trom the 3 ~ n n g ner ia lradio operator

a. 'M Trw. i l l i on . . Time 81910.111 and \Yenther encoded 1nUCCPAC were tranam1ttecl trom the Ground 8to.t1on to th e a irp la no us1n& the "OX _ thod ot tra.nam1asion., Weather was aont Il1l111odiatelyptter tba !tm- Tioks and dur1ng the lnte hours ,or the mi ion.

-82-


25/55

3. Both CiY interferenoe and atmospherics WOT8 I l d j u ~ e d to beal ight moderately strong during this mission. interference on3145 Iccs by a sta t ion ht\ving the c d l s 1 of .xp." WlUI e n o o u n t e r ~ .but not effect ive . avrU s ~ t i o n B oper t ing ne 11060 Ices censedhe a9y interference. F o l l o l F 1 ~ " c . a I I p e r c e n t ~ bro d of tro.fticper f requenc: 7 p r cent o n;) gacycle8 i 60 per cent on 7 megacyclea;o.nd 33 percen't on 11 gncycles. '!'he ll.vlll aU horit ies hnve a t ted: 1 t to clenr Q frequenoy to replQco 11060 Ices.

-e. !!arlgntioM1 ,.14s I Seven BP'/TF bea.ringa were requested yaerl rodio o p e r a ~ r 8 . Only 5 of the se b e_ ri gs were relnyed to tbac.1rcr:.ft. One nircra t t cho.nged beo.ring before the tint benring re -quos Could be relayed. Another bea.ring was t r ~ . s m i t t e d . 0 VHF/OFreql1ests 1Iere mode, All narlgationnl homers o.nd ra.nge. were uaed lF1 thsa t isfac tory resul ts .

5. Net Ddscipline QAd SeouritYI No v io lo .ti ons o f Dot discipl ineor security were reported during this mission.

6. Enemy TrQDsmisgiQnsl The following inoidents of jnmming andinterference were noted:n. 3145 kOSI Negligible.b. 6055 Iccs: Unidentified C\'." 700 milos from Japan was veryef tec t ive .c. 11060 Icc. I

(1) High eed C\! over ta rget w inerfec t i vee(2) S Ildy ton over t e . r ~ wn.s pa.rticJ.ly ef fec t iva.(3) JWllbled r:w and im ita tio ns o f o.1rcrntt ca l l sign e.t

~ 2 0 1 and 2406_51 were p t l a l ly fractive,d. !990 Icc.. Hegl1gible.e. 1615 IcCI. Sboacly tone from 250056 250200z WQ8 1net-

I. lOnO kOIl(1) 8 ~ l p . QIl4 (111 .19\=-11 ovor 'ttU'Iot '1orc etfectivo.(8 ' U D 1 a O D ~ 1 t l e 4 e1luac1:orl Q,t 2500011 wo,.. lDOttoo\1vo.

C. MlO, mo. 11160 k., lfcsllg1"10.CltABll (OporaUon P r l o l ' l ~ Air/8oa Jloaouo)

1'00el tr a dittoren1: all 'orat t a t tho Sl4th mOl>II . . . 0 pnD 1;0 IaUdon OODtI'ol tor DOo-


26/55

11111

D

ImLLlGERQE

Part I - Enemy Air Oppos1t1onPart II - Bnell\Y l.n't1a1roro1't an4. 1 r - o..t.1r Bo'bll1a&

Daage .uuge IOC)g


27/55

f.;.RT I - r;rmr: rim CfPOSUIQH

Eoemy r pOli t ion wns hanvy. oonsist ing t 379 ~ t t n e k "'hor _ ro se cri l l in stn nc os o f enemy o.1roraft lying throug tbe fo r -mo.tion with gun. opon; 0. cOl1ll1derabla number o f eoo rd incted o.ttaek. TO a by 2 and 3 plano lelll&ota; Q 10k pressed his ntt"ok so closethl l t 1 8-29 h!l.d to pu l l up o.nd a.nothor drop davID. to Bvold a col11. ion;thoro TIns Go. oool'4innt6d lltt:lCk by 2 a1rcro.1't idont11'J od as Dlno.ha; ando.n .ac po.ued 15 f ee t W\dor 0. 8-29 in whllt lIay hnvo been BD attempt o.trallllllin,g.

b. There were :nlUlY twin-engine f lghUlrs in the o.ir.c . The grent mo.jorlty of the attacks ware o.t the ta.rget and

o.t Inhd's end. with a i rc rn t t assigned to these sootors appa.rently Te -mc.lning there .d. One B-29 "'as los t to enemy nircrnft o.nd 2 to enemy ni r -

c rn f t c.nd c.ntiaircro.ft combined. Claims were l destroyed. ~ probablydGstroyed, and 22 dc.mnged.

2. umber o f A ttpckl MId Type of Enemy ~ l r o r n f t 4 t ~ n c k i n g :Enemy Air9rof t No Attr ,cg .Por Centleke 76 20Tojo 68 18I rving 5 1Tony 7 12sIB Unidentified 35 910k 27 7Vn1dent1tle4 21 6O e G ~ 15ttE V n l d ~ n t l t l o d 10 3JGk 8 2k to 6 &ao 5 1Dlnr.h 4 1Bamp a ) 10001'0 1 )

T01'JJ, 3'7D 100:5 I_X AirqrAt1j 1chp4 BUi; 1st U1;ppkinr, All utimo.tecl 584 I d r o r ~ were l ighted. Ot these, 8514 did not o.tto.ok. Thele In -ola404 41 ZeUI , 3S TOjol, 21 TOnyl, 20 asoua , 1'7 Irv ingl , '7 lUcks,J 4. Burpl a D1DD.ha, 2 ABC., aDd 1 Bure. or theae, 2S wereati t led Q8 . ~ l . " D & 1 n e , 19 III twin-engine. and 1 0.1 fOUJ'-engine.

reao.lader bela& lUl1clent.1t1ed.1'8110" 11 'b cl on t l FO I ado o.va11a'bh a r thelclatocl ta oal 18JIOrt bacl be. 1..u04.


28/55

~ Dir,otion nod Lovel of ApproQchl

Direotion and L6vel of Approaoh11% of Enemy Uroro.1't

Toto.1 umbeZ'of At-tac1ca3'79

FROM ABOVEFROM LEVEL 20 %PROM B 39 :c

S Qlq,1M b y b P ' b'g Aircrnt$ A1)d Qug Pp,Uigll\

3%

1 Ofl!11 Zeke1 Zeke1 18k'1 z,p sa1 Itok1 NIGIca IniAC1 Irv1Dc1 IrriDt;l im p1 SIB VII~ ViI

tota.l 1

Qgp Po,it tOPllSGos,RBRSGTa.11RsaTo.11ISORo..RBR80"


29/55

lEobgbly Pestroyod oomued Gun PositionOliO. RSO

RB

aeL9To.11LBRSORBOliOoaose

LBDSOL8RSG. oaoRB1BRSO. osee D . TCl11RSO. lIone. LB. TaU

OliORIlIBTI111. LBlBRSORSGRSO. oseNOlOLB, TailRSO. RB. To.ilRSO. LBNOlie

RSOaDloeo'0.11LB, NoeeTony

1 Tony1 Tony1 Tojo1 0 01 Too1 Zeke2 Z e n1 iok:3 Irving1 Irrtng1 Jack or lake1 &mp1 Oaeer2 Oscar1 o . o ~1 8 / i TIll1 SIB Till-a

T Tojo S11ver.I Tojo - S l h e r with red roundels.S Tojo - 011" droll.S ojO - Coaoutlapd drale g 1 Tojo - Yellow DOse. s U " 1 ' winga1 1'030 8lllOk un4 white stripe around fuae1ar;e5 OII - CQIIOutlogod olive drnb with red roUDdela9 T o q 011" 41'0.1:1t o.. - Sl1nr . with red roundela1 0" - S11nr b1D.ck 8'trlpe on win t i p1 To. . - Yellow aplDDer 1 To.. - G r q with red round_1aI To. . Blaak with red round_h.I 0D:l - Red ADd wbiw candy st r iped w 1 ~ s .ear- S11"r with red round_Is on wil liS.- C 1 4 ol lv . drab with rod rolUlll I .D1 - Sllv 4 . t r i p e on W1AC t i p .

1 ony1 Tony1 "'ony TeJo1 Tojo1 Tojo2 Zelcea Zoke1 Nick1 1ck1 10k1 l i o i _1 Irving1 trYing2 IrVing1 Jl1ck1 Jllck1 ABC1 sis VII

...l-S/E f I l l24

. & Ippy ' u r g E d ' Mprldne"

1'7-


30/55

6 Riok - Olive drab.2 Hick - 81..ek.ick - Shiny _laok.2 iok - Gray wi tb red roulldels on win!1 10k - 011 ... drab with black circle 00 wi/ll;s.10 Cscar 011n drab.2 Oscar - Uoddr.1d. blu1 Oscar - Gre.n,1 Oscar - Sl ly . r with r d rounde a on wiE!&',1 Oscar CQJIlou.flaged brown with red roundela.1 Oaear - Yellow and blacle . t r ipes on w i ~ s IrVing - Ol!? drab.2 Irving - Brown 1 I r v 1 ~ - Gray-ueen .1 IrT1ng - Gray with red. roundel. on winga.1 ABC - 81 lock.1 ABC - Tan with red roundel. on wings and fuselage.1 George - Camouflage greyish.1 S!E - Red nose.5 S!E - Silv.r with blue nose,Several o th er s ig hted e n e ~ a i rc ra f t were painted orange and black.

Illl black, . i l n r , aJ:Id Tarious camouflage patterns.

P,ART I I - ErEig AN'l'IAIRCR,I1T1. ERew AlA Pire I.. Th. primary targe' t was attacked. by Ale of :5 "ings asfollOTRII

(1) Thirty-tour Jle of the 73rd nr; a'ttacked trcm232352Z to U0022Z a t al t i tudes fro 10,000 to 12,300 fee t on trueb adinga Tary1nr; frOlll 33 to 185 degree. . Cloud IUldercaat wu 1/10.(2) Thirty-.even Ale of the :513th Wing at tacked the

primary target (8 or th.ee Ale h i t target 792 adjacent to the pr i . . , . , ) troll 232352Z to 240004Z. Alti tude Taried. fram 12,950 t . e t to1 ,500 t e . t and headince were 29 to 45 degrees t rue. The undercaetvaried trom CAVU to ~ 1 0 .

(3) thir ty-eight Ala of the 3l6th Wing athOleed thePI"Ulery t a rge t and 3 Ala etruole tarr; . t . or oppol'tllh1ty in the Taohl-Ie u.... Time over t . . .get wae from 232352Z to 24004SZ and alt1tud..orv1.d troll 12,000 to 13,600 t ee t . Axee ot attaok were U to 37 cl.Ir. t rue . CAVU oonditione existed.

b . :nrar;e wind. in the target area were 50 to 60 knot. a t850 to 270 dege...

o. I ~ h t Ale or the 13rd inr; att&Gke4 the eooodary target ,Sh1&Wlka (90.18 - 8011). One Ala r4 the :513th Win a"-acked I1c h1DD (3438 - 13808) and 1 Ala or the 3Uth iog a,"-eked lauaaa AlP.

d. Plait t ' l ret encountered in the T101n1 ty ot the laJ. t1&1po o..-Saki. I t wae heayY oal lber , .. wu a l l f ale encolUlteredOD 1; e aiedoD, aIlcl oonsisted ot meager and 1naccUI'at. eoDtlDOuslypo1Ata oa1 b U n p t i r e .

- Ie .


31/55

e . In the vioini ty ot UIIIlUl l .aDd 1I111h1m codordto to intttMO&ellurnto flu ~ OQOOl&Dtorod to.r pal'lodA from 1 t;o , m1nlltOli duu,-t10n. A nWllber ot Ale were h i t by f lak in th is are and severalwe:oo reeked. Continousl'y pointed t i re predominated, but so e oreep11\& b a r r a ~ and precUeted. oonoentration were reported, TbB flak ...low d tra111nlO a t f i r s t , but WaJS quJokly ~ o r r e c t e d to level andaocurate for succeedinlO a i rc ra f t ,

t . Comment. Prertoul photo cOV8re.ge the umaeu area re -VOtUod only 2 heavy AI ~ s Pheto oovera&8 aince tho.t 1me indi cated that there were probably 18 additional heo.vy lo, F'lak Will next encountered. east of Yt. FUJi betweenHalconi-Ya and Oy!lJll&, This flak wu contlnoualy pointed . accurate,

o.nd. VIall variously reported CWJ 'being IlIOClgal' to intenso.h, At TClohikawa. primary t a rge t area flak WllB generallyIntonse and accurate for a l l f orma ti on l, t he intensi ty and aocuracydropping off for succeeding formations over the target . All 3 typea

of f i re were encountered, with oon tinous ly pointed predominating,T h ~ r e were deviations of bursts in a l l direct ions , but most of thefInk was level in al t i tude. Although many crews could not determinene t l y when they were hi t , most of the planes a-uucik RCo1voli tho dOJllageOVOr tb8 prilllary target . One AlC was los t to AIA over the targetcuxl two, damaged by AlA and SlA, were eubaequontly l o . t . Some e ..d1U11 J/A lfU reported in tile t a rge t area, Flak continued. p u t thet a r ~ t unt i l ahortl . , t .f ter the l e t t brealc.o.way.

1 . Inaccurate t lak "' ... reported fro the followint; locat10na:(1) falllal'lta .. m e a ~ r . predicted. conoentration,(2) bu .. very measer.(3) Shl aoka .. IBOd.rate. contlnolls1., pointed,

.1. Barat were pre4oa1nctlyblac1l:. Two inaccurate phoaphoroaaweN aen . '1'wo toratlolUl Gt 1:hliI SlSth Willi reporte4 ee.lngb lau . r l 1q burata "bloh ee...4 to throw ott long 8Uvery1re

11: Of .. t:o of I I Ala bombing targets . &0 were 4....,..4( .C ) fbia f ta .. l a rp lDGr.... 1n flak dlUllAp over recentlo u u 4 " . . 4U pr1l1a1"U" to 'the lower alt1tude flown In prao-ly OA W ooD41t1olUl. I fo.t or the 4amap 1111101'1 however, IIUIAyballball'd1en 01w4 i n t eue IIA . . being 4etr1 ntal to bolllb1nf;

JIlW .Dl.J.a1 lloat roraaUou ployed turlUl aDd o ~ &ft'1.

pt an a 'rojo approlt.ohe4 'be e l l 10 aD4 11aIIIl dropped .. paraGlua1le 'boab toftr4 aD we tJ"Oll a die ..a


32/55


33/55

$191r.1..IU;lillA1

Total damar;e to date

DestroyedStructural damageSuperficial IGuttedKinor roof dama.geTota.l dl1lllD.l;e

Square Feetof Roof Area.

650.62372,336838.626

Per Cent ofOriginal Roof Area

~ Old damage was figured according to latest pre-strike photographYl thus figures will not be same as those in CIU Damage Assessment Report 14, in tha.t repa.1n have been made to the fol lowing buildingsl BUilding No.3 wa.s being repaired; bUilding No.4 partiallyremoved and N quarter rebuilt ; bUilding No.9 partially repaired;and bUilding No. 16 partially repaired.~ Photo reconnaissance reports (Damage Assessment Report No. 76of the XXI B.C, C.I.U.) indicated 5 small bUilding. of Target 2024,The Sumito Light Uetals Plant at Shlauoka, received direct hits,Sixty bursts were visible on the west edge of the plant. The 5 buildings hit represented about 5 per cent of the total roof area of theplant, or 49.875 square feet.


34/55

Admlnlstrgtlon offiyes

ProbAblo BWrgC8Unidentified

AdminlatrQ 10n & orrice,Administrntion & off1oap

Boiler bouee

Unidont1flodUoid nti!'iod,

Endno part mAAufo,ctyrlngEngine pnrt$ mqnyfqcturingEngine nasombly nnd ng1nopArt, mAnufnoturing

29,6

3360

100100100100100

2,550

?993 28

5.9007,500

3.680

5.000

6566,1&5

8.04015,068

12,000

37.945

Per canttotAl of roof

13.500 13,500420.297 72,330 0 8,310

5.009310.906 6S.4B5 374.391

37,945

~ 7 . 9 t 5

IWWlE :n; S UARE FEETSUPERFICIALStructural Gutted l1nor' RnDetrouelRoof Area.1I1.q 1'1;(Ret III

:' ,009 3,808 8 .049 BeOtOR 48590)9 18'000 15008

)] 5.099 500016 4.09,00017 U . l i ~ 65618 12.250 6.1251p 12,000 12.00029 1,500 7.50021 5,900 5.00028 5.000 5.0002j5 13.1500S4 8.967 2,650TOTAL I 77,732Reroreac" t 0. , oro DtIIllot,e .la.....at Report No, 14b. Economic D Aaseaamont. Joint Ta got Group. ~ ~ h l n g t o n . D.C 90.17-2009 DA

0 , Joint TQl'r;et. Gl'CNP, a l h 1 ~ n . D. C. Fonotlona.l Identification S t90, 17-2009/P6


35/55


36/55

~ Q 1 i ! . l J L ~ l i . I l . A 1 &PARt III - SECtIOI 8 - DAMAGE ASSESSMENT

90.17-'192TACHIU AIleRAFt CO.(35/.2 - lsg/24.E)

This report o.aaeued d lP to T l l J ~ e " t 90.17.792 resulting troD I B.C. lliasion 96. D nge WlJJ concentr ted on four previol1a1ydQ!!lcged bUildings, 11 located in the section of th e plent. Twosub-o.ssembly o..nd on motal fabrioation buUdinga ..re o.lmost total lydestroyed, while a seoond metal fabrication bl11lding received minordG!!lage to about 18 per ceut of i ts roof. Aroa of root d ~ resultedtrom the cur rent r aid Q!!lounted to about 300.000 sq . f t or 10 . ' percent of tho total roof aren or the plant.

Total roof aroa damaged to date 1s 807.000 sq. f t or 28.2 porcent ot the total roof area of the plnnt.2. Statis t ical Sumaary of ~ a g e : (See annotated p ic tu re t hn t followsthis report).DtomMe from current strike I

.Baa.4 OD XXI B.O. O.I.U. QlA Report Ro. '51

IQrtroyedStruc1#urnl dnmageSupertiolnl.Guttedli1nor roof d r

Total dlllll.aeTotal root areal

De8trOJedStrllC'tural cldnpSuperficial &Gu'tteclJl1Dor root dallAS-total 4G!!lace

SquQ.te Feetor Root

203,93998,000301,9392,870,000 square teot.

Square Peetof rgat101,061

520,5515185,364801,020

1 11

P "r Cent ofOriginial Root Areo.

Per oent ofQriclnial Spot Area.


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R:)oi' r..rGlL JWU.OE I ii SQUARE FLETin squc.re SUP3RPICAL Percent of Function of Building ,teeio s rayed S t r u c t ~ 1 OIatted JJinor Total roof' co";W\ent316.000 98.000 fl6.000 31 Bub and final aeemblrno,900 , 70,000 70,QQO 60 Sy,b'g,lUomb1yi.,6 000 QO.lSOO 90.500 fil. 5 Metal shaping &:fg,br1c t ion

1'7 ~ 5 , O O O 403,40:'9 '3,439 18,5 Mota1 shaping &:trabricntion &: storagoTOTAL 203,939 98.000 301.!l39

Tot root area 4009,000 square foe t (93,000 squaro foot not r oo fed over)References: 0" riA No. T. Photo Intelligence Section AfJ/r-.S Intelligence, 1 Deoomber 194.4..

b. OIU D a m a ~ Assessment Report No. 42 - 18 r i l 1945,


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11.QIJ l

A

B

COISOLIDJ1'JE) ST4ISTlC4L StJMMA8X


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SECRET

XXI BOMBER COMMAND

" , , , , . , . ~ O L I D A T E D STATISTICAL SUMMARY OF COMBAT OPERATIONSFORM 34

MISSION NO. 9624 pr i l 1945

PriJmry ' l8rget - Hi tach!. Aircraf ' t Engine Co. TI1chikoEiFll'ECTIVENJ!SS OF MISS!ON cosr OF MISSIAircraf t Airborne 133

Peroent Of' Aircraf t On Hand. 25%Aircraf t Bombing Primary Targets 101Percent Of Bombing . l . ircraft Airborne 77%Bombs Dropped On Pr ilmry Target .. 474 TonsBomb ing ccur.::.cyI Of bombs released on target . 28%

1'1 r th i 1000 ft . of Aiming Point and 56% lr ithin

Aircraft Loot 5Poroent or hi rcraf t i r 0 no 3.8%Jdroraf t Delll6g rl. . . 6Peroent Of Aircraft A 1 r b o r n ~ 51.1%Or 1"1 MeniJor Casualties 52p oent a Total Partioipating . 3 . 4 ~

000 f t of Aiming i t .

SECRET

ircrllJ. t tIr . 'o Jima . r,' 11

33RO STATISTIOAL CONTROL UNIT


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~ - ~ J " B l . J : " : I . s s 1 ~AIaCR.A l ' l ' PAR ' f l C I PAT ING DATE

I./C TDI: OF TAlE 011' r6 ; OF RJ::L'lRN 4/C .; e A/C Ale Tow. Tow./C I./C FAlL3IIll I./C BoalING llClQlJNe ECi$nm C"!PlEJ'I A/C A/CII 1lCIu:D- TO All,. IRD'.AnY SCamARY OTllm 0'nI"''' IVE .


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A ll.llll.i :t MISSION 96DI1'E 24 Apri l 1945. .mea , . AU. AIRCRln' rllLDG TO Bam ~ TARGETIllClWlleAL aIl l l l lB _1RIIlIl n.IOHT CONDITIONS EJmlt ACTICIl OTHER- - . . -.. -- -I- ...- _be

313 3 - - - - E - 1 - - 3 1""314 - - 1 - - J - - . - . -.0

- ..21 5 2 1 - 6 11 . . 1 . J 1Be

.

Air e re" pe rsonnel error :E J.1r cre17 perscmnel error." k ir c:rCtl personnel error.

E.2.!!E1


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SECRET )(ISSIe:; 96DATE 24 Aprl l 1945

OMBING RUN

r wan .lJIDD 'I'IMI or ULIASE ALT. OF R!lLEASETAlUElT VISIBLE rAGET NOT VISIBLE-- AlllCIW'r

DROPi'IIG VISUAL RADAR RUli" ~ P P I N G VIS. 51 GH'rING !lEAD DROPPINGF ...... or '1allGi:T TYPE E.UlLIIS. UTES' LOliES. HIGHES SIGHTI1l' 'lITH VISUAL ON ON : R E . . . ~ C E RADAR BEer.. O'llOMBS RUUONLY CORBECTIOHS LEAllEll OR onSET PI'. ONING LUllE!lBit.oU ~ EIlg1ne Worke, p 34 2352 Z 2355 Z 1 o o 12300 - 3 31 - - - -'1achlkawaSbhudca S , 2141 u 0022 Z l l ~ " " , 12150 - 4 4 - - - -Shllllizu TO 1 ''"' '"' - 1 - - - - -

3 J:!1tacbl A/e Engine WorkS, p 29 2353 z 0004 z 12950 14500 - 3 26 - - - -'1achllcallla I ,ITach1kawa Ale Plant. TO , 2352 Z 2352 Z 1?650 13200 - 1 1 - - I - -'IachUawa Ilkellhlndon TO 1 0027 z - 13120 - - 1 - - - - -


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ACCtJRlLCY or BCHlrm m PRDlJ.RY Tl.ffiETlo!!$ION 96

DATE 2.4 urll 1945

TO TOTJ.L H.E. 'J't'l TO'Il.L ft.!:.BQ.lES RELE',sBD BaalS SCORED

:c Hl'IS SCORED ..lTKW l O O O I _ t - - " - S . . : B I = 1 S = S C " , C I 1 E D ~ " ' r " m m = , , , - , ,,2000=_'_ jTO TOTAL H.E. I '1'0 'I'1'JI'AL M.E.BCJ,CBS REJ.S.,':.SZJ) Ba.3S SCORED

~ . _ -


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2252

1119

: 'pr l l 1945

8

822

1111

PERSONNEL CASUAL'll lES

lliSS O J _ 9 ~ 6 : . - _

50751490

TOTAL IARTICI- KILLE. MISS_ \/OIDimlD T TALPJ;,TIl G n G & I N J U : R E ~ CJ.suAL'lllE

--_._-AIRCIYLFT DAMAGED

ElDlMI ACO. O\'1N TOTAL& OT :T.l-Ale ~ l l I I O H GUIlla m\/N M A J C l i ~ m m R1 3 2 1 :r:2 14 4 9 112 2 14 8 7 175 7 -14 1 l,8 50

AIRCBm LOS!

1

1 ,l! .

Hammec. by ne f Le ht er. S ho rt ly past coast, enroute 0 base, Nose brok off , A/O ca t f ire and a ll 11 ere,- memb rs ball d out.Survivors sighted. ~ further information available.!? Flak shot off ta i l eotion over tart;et and. l../C f e l l from forma ion. All 11 o rel l ombers missing.c A/C crashed d burn d on landing at lifO J1ma. 8 ere" mom er e \founded, none ld11ed.I A/C ditched returning to bu,se due to enemy action. Al l 11 cr '/ m mb rs missin . 2 ere I members balled ou t ove r Japan Mainland end 6 .re,!members s i g 4 t ~ d on rafts by nether /0 .1 Ale burst ir_ e flamoD on ....en t i nt o s pi n over target due to nem,y a/C ll1ld flnk. 1 11 e r6 \f members m i s s ~ f 4 ut obsorv


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MISSICIl 96DA.'m ----:::-r-1,---..,:-;-=r,...-24 Apri l 1943

3J.DgOscar. 'I'Ony .. Kate

A'l"rACY..5 1 i 1 ~ A./C I.IEE."I1\OYEIJ &. DANAGm 50 CALIBER AJ.lMtI>lITIW EXP.E2IDITCREt,:;lr AleSI.::JiTED m Ell.. TY1"E m DES- HUlB. IW.:AGm FIHED IN TEST J'El'T:I.Sam> W.MODEL '.lJion1) DESm'D ClOl.:BAT FIRED Lcm A/C ror.u.

73 il l 60 136 6 10 4 59310 5850 11E'0 6000 72340313 iro 280 66 3 4 5 31135 3.590 - 12000 46725314 \ ~ ' G 254 In 5 10 11 90685 3520 - 13500 10'770521 Be 594 379 14 24 20 181130 12960 1180 31500 226770

Irving 4 4 -Nick 2 4 1Zeke 2 - 2Tony 1 2 3Jack - 2 -Bamp 1 - 1Tojo - 3 3ABC - 1 -Oscar - - 4S/E - - 3;u>tl:e. ".1"0 o. .LrV


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10921 Be

!ISS'IO 96prU 1945

ime t Low ~ \ l t i t u d eT i ~ a Of Climb To Bombing AJ. t i tude

Avg. Timo At Bombing AJ. ti tudeAvg. Flying TimeAvg. ista::lCe no ( a u t ica l

1.r i lea)

5:23:251:2914:05?838

1:514:362671

6:26:27:515:202864

6:00:25

1:0814:392793

Cons d: .o args";"ver8i;,-e 35604uo

311131893293270

37543853111

Oonsumed Frem Tar at To Base:( /C \Tithou ~ f u n c t i o n )No. Of i rcraf t

AverageMaximumi..nimwn

Consumed Fro arget To Base:(Alc i th Malfunction)o Of Aircraft

;veraaeIfarlI!lQ!ll

1mwDfotel Jus1 Used:

A:nrageMaz1mwDK1n1mum

otal Jusl Beu1D1IIc:verageMaxbIuII~ 1 J r l m m D

er Hourg Gals. Cona ,P r ):Ue

37244629422115

22li592 22456

602364505565

31243830711819

425727002340

62596830586510771545570

1128.72.3

32261728752400

326612 25259564236794583810701589566U18.8

2.2U

100249830711819

9257727252340622768305565995

1589406

425.02.23

265683 , 262491 272697 800871:or which data are available (Excludes ~ landi. at Ivo JimA)na_1AUI6 OJ& Ala l A & l a 1 ~ 01. I .u J lll* IlUd too fa 1 ortag : 13 Vg - J. /e - 31 c -, C- 1085. 1548, 1560 gala.


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MI to 96

WEIGR'l' DATAI !C. VEliAGE I AVEBAGJ: v:E:llAGE .. AVERAGE \IT AVEIlAGE j'VG 1IT OF I'tJEL I AVE!lAGE VERA.:i:::l GROSStmIW AIllCBAi'T &SIC l1!r. USEi"OL BO. OJ' JOIms OJ' :BOMBS FUEL LOADED I MISO. ~ I E I G R ' l 'AIlmOlUlI OJ' A/O LOAD LOIUlJIlD LOilDED L O A ~ D _ (6 LBS P"'...B, G:.U.il lIE IGHT__ Am T.t..K:E OFF---- - - --- --r---- - - - -BVG 44!; 75199 58430 18.5 - M64 9898 6891 41346 , 7 1 e 6 133629313 VG 45!: 74847 61319 I 18.8 - M64 10058 7330 43980 I 7281 136166314 VG 42 75531 52603 18.7 - M64 10063 7440 1J4642 I 7898 1381341---_ -, - --- - - - -21 JC 131 75185 60760 18.7 - 164 10006 7218 43308 , 7446 135945

-!. Excluc'es eupar dumbo Aje. .. Bomb \I l ' ts : Ali--,f64 (TNT) - 535 Ibs .


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TO:C ZN '{Xl B O ~ O . {C ~ 730 B


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s. e-m1catianea. (1) XlI b Cca SOl am S(JI far strike I'8porta, contactreport_ aDd D r P'OoedUN.

LmfAYC ( 1 ~ G xu BCJI CD(


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o

prmpmo. List


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Copy Hg1234.5676910U12131415161718192021282StU252627-m2t30 - lSl38313&S6Iea'lI'0QU""&

PISIRIBUT IONtAOTICAL MISSION REPORTS

COllllDanding Genera l. Twent ie th A ir ForeeCOlllllandinl; GenerilJ.. %Xl Bomber Commnn4Deputy CollJlW1der. Twentieth Air ForeeChief at Staff . Twentieth Air ForeeC b i ~ r of Staft . XXI Bomber CommandDeputy C/S. Opna. XXI Bomber COl!IDItU1dDeputy C/,!. Sup &. Maint. XXI Bomber COIlllllOlldAD of S. A . XXI Bomber CommandCODllandin,; General. Atmy Air ForoesATTNt AC/AS. Intel1igGnceCommander in Chief. Pacif ic Ocean Area5 (Adv Hq)(:oJDlllander in Chief Pacifio Ocean Arst\s (Rear Hq)Chief at Naval Operations. OP-16-VJoint Intelligence Center. Pacllic Ocean ArensCommander Air Force. Paoific F l e e ~COIIUDllJIder. P'ltth FleetCommander. Fir s t Carrier Task 'orceCommander, MarianasCCIDlIIandll\!; General. U.S. Army Forces in Far Eu tCOIIlI1andlng General. U. S. Army Porces. PaCific Ocean Areo.sCommnndin,; G e ~ e l ' a l . All ied Air For ce "Southwe&t Pacifio ArealCommanding General. Southwest P a c 1 1 ' ~ o AreQ.S. AT'm: 0.2(For ~ c t l o n 22, RCU)CoJaanbng Genar..l . Far East Air ForcesCoaIIlUIdiftr; General. U.S. Strategic Air Forees 1n EuropeCammaudlng General. Eighth Air FOTceCCIDIIaJlding General. Uedlterraneo.n Allied Air Forces

CCl!IIIIW'ding General. Fifteenth Air FaroeCommancl1ng General. Seventh Air ll'orceCOlllundihl General. VII Bomber CommandCClIU1I1I1d.1ns Oeneral. VII Figh1:er OCllllJlllU1dCoaIIIwl41nl General. Eleventh Air Foroe0oal lQ41. Gepu'al. XX BQllIber COlll\landCcmaUll11lS GeMI'al. 38th nyl_ Trainift! ?,'tIll:COU.... lac o. .ra1, 581:h BOlllbarcllaen1: Wll.'l&Oauw1q Oeneral. 73rd Bolll1arcl8lDJ1t "'OSCGIUIaII41bS OeDiltral. 31!tb B o I l b ~ d I l I u % l t 1flZSCOcaalUllllas aenual , 3l4lth Bo.boNmDnt WinsComaaD41DC Oenen1. nSth BOlllbarilllent 11'101OalmudUc Ott1eel'. 31'4 Pho1:o Rocoa S , ~ . d r o l l00am&D41ac Ottioet. S3rd Stat11tlcal Oontrol UnitCMlI1oaJ. 1Iilrtue Orfloer. XXI Bomber OOllmandfaotl.,. aDd Traillins S e ~ t t o _ . A-3. XII Bomber CommandOrclllaDlSt ot t ioer . m BOIIIbeJ' OoDlllWldOCllllaDlllD1 Ottl08J'. m BelIbel' COIIIIIlllD4, (JoIthat sta&1nsCent8r (Provl.1dnal)m.a\orloal ott lrl UI Bollber c.maDdCc.ad&llnc a .e - rd , All' ForoAft.. IDIAB 1 n 1 l l t 1 1 1 ~ ' D C e . Coll otion D e 1 ~ 1 8 1 o nC':oauDaJa41DC General. -V Ail' Forcea hcUlo Ocean J..realAl'TI. J.AP &valuation Board

.11.2111


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21st bomber command tactical mission report 96, ocr

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