enemy installation iwo jima 3

8/7/2019 Enemy Installation Iwo Jima 3

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12 cm CD GUNS

View showing field of fireaffonded 120 ram (12 cm )gun emplaced in casemateoverlooking East anchorages and beaches.

(TA-183Y)(SW) corner.

120 mm (12 cm) CD gun d estroyed by naval gun fire.This 4-gun battery wasexcellently camouflaged.They were not obser ved inaerial photos until theblast effect of naval gunfire removed protect ingcamouflage. (TA-183W)

3



12 cm (S ho rt) Novol Guns

The field of fire of 120mm (12 cm) short n avalgun firing down WestBeach and areas out tosea. Completely knockedout by naval gun fire.

(TA-146Y)

Front view of 120 mm(12 cm) short naval gunfiring down West Beach.

(TA-146Y)

34



12 cm (Sh or t) Noval Guns

120 mm (12 cm) shor tnaval gun casemated Insix feet of reinforcedconcrete. This Is oneof two such guns InTA-183X.

l£0 mm (12 cm) shortnaval gun sited to fireon East Beaches.

(TA-183X)



12 cm (S ho rt) Nava l Guns

Rangefl nder for 120 mm(12 cm) short naval gunbattery. (TA-183X)

120 mm ( 12 cm) shortnaval gun not damaged bynaval gun f ire, case-mated In flve-feet-thlckreinforced concrete withtwo adjoining rooms forliving quarters and ammunition storage. OP ontop of this Installationhad a ladder leading upfrom the Inside to It.This gun was put out of

action by flamethrowersand small arms fire.(TA-148L)

36



12 cm Naval Guns

120 mm (12 cm) shor t navgun emplaced as a coas tdefense gun.

' » • . ' •

> 0 0 0 . ? ° 0 . 0 ^ _ rt O O o n ^ ^ O

o;«o"o?«,v

GUN ROOM . AMMO. ROOM LIVING SPACE

| FIRE-PORT

h—4'- tf1

—• 9"- 0"

0,»

oSo.oo

-6'- 6" r- 9" 6'-0" -O'U'-0"

CP e , , „ & ,

O O T>

,00 0 ° °

n° ° °o » . o o

O o 0 o

-REINFORCED CONCRETE

Plan view of casemate for120 mm (12 cm) short navalgun. (TA-146Y)

3



8 cm CD GUNS

Inside view of casemated76 mm (8 cm) dual purposegun used as CD gun.

(TA-147V)

Front view of casemated76 mm (8 cm) CD gu n showing construction of 3 ft,reinforced concrete.This gun was not damagedby naval gun fire but believed to ha"e b een putout of action by flamethrower and small armsfire. Field of fire345° - 15° .

(TA-147V)

38



8 cm CD GUNS

• » > ' • • ( • - " % , • • '

1 p. * : 5 -0'•* " • • * ' ' •

AMMO. 81 LIVINGSPACE

'^: \^v-f

CT c l I r ~ i ' * ' • . * ^ -1

Plan view of casemate for

8 cm CD gun. (TA-147C)

> * i i " . .-."•• " . .v. '» • ' v % ' • • ' • - »*•* ; •v

ANTIAIRCRAFT AND DUAL PURPOSE BATTE RIES - 1 20 mm DP

Four-me te r r ange f inde rused in con junc t ion w ith120 mm (1£ cm) du al p u rpose b a tt e r y . (TA-202X)



12 cm DP GUNS

; • ; , ; . » / ; . : • . . . . ;

120 mm (12 cm) dual purpose gun showing revetmentmade of oil drums filledwith sand. Ammunitionready boxes were placedIn the side of the revetment • This Is one of theguns In a battery of six,and It Is known that allpersonnel lived at theirguns In an adjoiningunderground room whichwas found at each emplacement. (TA-147R)

Underground shelter forpersonnel and ammunitionconnected to 120 mm (12cm) dual purpose emplacement. The walls and roofwere constructed of reinforced concrete 2 ft.thick, and the Installation was covered withearth having natural

vegetation for camouflage•(TA-182U)

"«lli:;:

40



12 cm DP GUNS

Side view of 120 mm (12 cm)dual purpose gun showing-attempted camo ufla ge. Thisproved very ineffective.

( TA - U 7 R )

Director for 120 mm (12 cm)dual purpose batt ery. Although no damage can beobserved In the photo, thisInstallation was out ofaction prior to our landing. (TA-147R)

42



10 cm DP GUNS

Camouflage net Is notedover 100 mm (10 cm)(65cal.) twin-mount navaldual purpose gun. Theemplacement was dug Into a depth of 8 ft. to10 ft. with no retaining walls. (TA-217G)

This Is one of two 100 mm(10 cm) twin-mount dualpurpose naval guns foundat TA-217G. A third revetment was under construction. However, noadditional gun was foundon the Island.



10 cm DP G UNS

Front view of 100 mm (10cm) twin-mount naval DPgun showing depth ofrevetment as compared toshield on gun. Camouflage net covers shieldand part of barrels.

(TA-E17G)

Rear view of 100 mm (10cm) twin-mount naval DPgun, 65 caliber.

(TA-217G)

44



10 cm DP GUN S

Plan view showing size of 100 mm (10 cm) DP gun revetmen t. Thisrevetment was dug Into the ground approximately 8 ft. to 12 ft.with rock piled around the sid es. (TA-217G)

I

100 mm (10 cm) DP gun with camouflage torn away.



7 cm AA GUNS

- - :

& '

75 mm (7 cm) type 88 AAgun showing poorly constructed revetment whicheasily crumpled from theeffects of our art i l leryNote the camouflagepainted on the barrel ofthe gun. (TA-235V)

AA director in lava rock,emplacement for six-gun75 mm (7 cm) type 88 AAbattery. (TA-183D)

46



7 cm AA GUNS

Hastily emplaced 75 mm(7 cm) type 88 mobileAA gun. The beginningof a revetment is noted

(TA-218C)

75 mm (7 cm) type 88 AAgun. (TA-235V)

47



7 cm AA GUNS

Although the trail legsof this 75 mm type 88AA gun were spread, thediameter of this emplacement measured only16 ft. (TA-183D)

ROC KS STACKED 1-6" THICKFOR WALL

Plan view showing dimensions of a typical 75 mm(type 88) AA gun emplacement found on Iwo Jlma.

48



Triple-mount 25 mm AA MGin lava rock emplacement.Several of these mounts,believed to have beentaken from wrecked LSMwere found. (TA-166C)

Triple-mount 25 mm AA MGemplaced with a batteryof twin-mount 25 mm AAM G s . (TA-217L)



25 mm AA MG

25 mm twin-mount automatic AA MG showing gunin emplacement whichwas constructed of lavarock, bloc ks. Noteammunition storage boxes lying around sidesof revetme nt. Therewas a passageway leading from revetment tounderground shelter.

(TA-148P)

"it "**•*'25 mm AA MG. This twin-mount, along with twoother twin-mounts, wasemplaced in a batterywith three single-mount25 mm AA MGs. (TA-148P)

50



25 mm AA MG

£5 mm twin-mount with onegun removed. It is believed that some of thesepositions had one gu n removed in order to reducevibration. (TA-201U)

25 mm twin-mount automatic AA gun in lavarock emplacement.

(TA-182Q)

51



25 mm AA MG

25 mm twin-mount automatic AA position connected to earth-coveredliving quarters andammunition storage overlooking airfield No. 1.

(TA-164E)

25 mm AA MG placed inrevetment using sand-filled oil drums asretaining wall s, reinforced wi th blocksof lava rock. Notemount for two gunners,one to elevate, theother to traverse.

(TA-147T)

52



25 mm AA MG

Three feet of concreteprotected this ammunition box at 25 mm automatic AA position.

(TA-164E)

Entrance to earth-covered partiallyunderground livingquarters at 25 mmtwin-mount automatic AA position.

(TA-164E)

54



25 mm AA MG

Underground shelter havingfood, water and first aidsupplies for personnel at26 mm twin-mount automaticAA position. (TA-182Q)

General view of earth-covered structure containing 26 mm twin-mountautomatic AA position,living quarters forpersonnel and ammunitionstorage. Note the natural grass for camouflage

(TA-164E)



25 mm AA MG

25 mm AA single-mount MOemplaced In revetmentusing sand-filled oildrums as retaining walls.Ammunition was storedaround the sides of therevetment as shown Inpicture. (TA-147T)

AEMPTY AMMO. BOXES USED FOR W ALLS

, LOG AND DIRT COVERED SLEE PING SPACE

Plan view of 25 mm AAgun position.

GUN BASE BOLTED TOWOODEN TIES 6" SQUARE

SIDE VIEW OF BASE



25 mm AA MG

Plan view of casem25 mm MG p o si ti o n .

STEPS CUTINTO WALL

Plan view of a 25 mmAA (tr ip le-m ou nt) gunrevetment. (TA-217I)



25 mm AA MG

V i V

2 5 mm AA g u n .

Triple-mount 25 mm AA gun.

58



13 m m MG

13 mm single-mount MGemplaced on top of Mt.Suribachl in veryhastily constructedrevetment . Nine ofthese weapons werefound around the topof Mt.. Surib achl.

(TA-132P)

13 mm MG revetment sh owing how natural vegetationproved to be effectivecamouflage. (TA-132H)



13 mm MG

13 mm twin-mount w ithsingle seat attached tomount in rear of gun .Previously encounteredtwin-mount 13 mm MGshave been equipped withseats on each side ofthe gun. (TA-183X)

« # # • •

13 mm single-mount MGemplacement carved outof lava rock . Noteammunition storagecave at left of gun.

(TA-183C)

60



Seorchlights

Trailer carrying 150 cmsearchlight from whichtarpaulin had not beenremoved when located.

(TA-818H)

View of AA mobile searchlight showing cliffs andledges which were used asprotection against bomb-Ing, strafing and artillery fire. (TA-217D)

61



Searchlights

Revetment containingtruck with generatorfor mobile searchlight. (TA-217Q)

Revetment showing searchlight comparator emplaced,

(TA-132A)

62



Searchlights

\ 4

— " • '

Radar adaptation forsearchlight control.

(TA-217C)

150 cm searchlight Infixed position. Arevetment of loose rock,has been partially blownaway. Attempts tocamouflage such positions with vegetationwere not effective.

(TA-218V)

63



Searchlights

ELECTRIC CONTROL BOXBUILT IN WALL

SANDSTONE ROCKSTACKED 2'- O" THIC

FOR WALL

SIZE OF LIGHT COMPAREDTO BASE AND PIT

Plan view of revetment for 150 cm searchlight ,(TA-217C)

150 cm mobile searchlight protected by stonerevetment. A truck with generator .for thesearchlight was found In a revetment close by.

(TA-217Q)

Searchlight position for 150 cm searchlight.

64



BLOCKHOUSES

Inside view of blockhouseshowing intricate construction of various room s. Inadditio n to housing a 25 mmMG and a 7.7 mm HMG, It Isbelieved that this blockhouse was used as a CP forthe defense of the EastBeach. (TA-149A)

: i

\

Embrasure of blockhousehousing a 47 mm AT gunshowin g tube and carriage .

(TA-165J)

65



Blockhouses

Front view of fire portfor single-mount 25 ramMG In blockhouse .

(TA-165N)

Cupola with four observation ports. The roof isthree feet of reinforcedconcre te , and the cupolacan accommodate a manfive feet tall. (TA-165N)

66



Blockhouses

Front view of blockhouseshowing fire port housinga 25 mm machine cannon.

(TA-147C)

Rear entrance to blockhouse. In addit ion toa 25 mm MG, a model 927.7 mm HMG fired fromthe opposite side.

(TA-165N)

6



Blockhouses

Interior view of blockhouse housing a 25 mmmachine cannon.

(TA-147C)

Front view of blockhousehousing a 120 mm (12 cm)short naval gun fir ingnorth along the beach.It is constructed ofheavily reinforced concrete with the f ireport being protected byrevetments faced withsand-fi l led oil dru ms.

69



Blockhouses

4 WAY OBSERVATION TOWER

4L

0" SQUARE, I4L

O"HIGHFROM DECK

Plan of blockhouse for 47 mm AT position at TA-1 81B. This position hasan adjoining room for a HMG, also space for ammunition storage, foodstorage and living quarters.

SANDBAGS

CONCRETEFIRING TABLE(MACHINE GUN)4-0" X 3 -0" X3-9 HIGH

1 4 WAY OBSERVATION TOWER |2 '-O" HIGHPROTRUDING 3'"0" ABOVE'TOP OFBLOCKHOUSE WITH 3 L0 " X ZLd' HIGH(INSIDE) OPENING AT BOTTOM

Plan of blockhouse for 3? .mm A T p o s i t i o n a t TA-215Y,

70



COVERED AR TILLER Y EMPLACEMENTS — 120 mm Howitzers

120 mm (12 cm) type 38Howitzer In coveredarti l lery emplacement.This posit ion was builtof cut-stone with aroof of logs. Trees Inthe area hid the position frera the ai r.

(TA-219L)

120 mm (12 cm) type 38Howitzer. (TA-201S)

7



120 mm Howitzers

Front view of 120 mm(12 cm) Howitzer emplacement showing fireport and surroundingareas . (TA-217A)

**f%$120 mm (12 cm) Howitzer !

In hast ily constructedemplacement. (TA-201S)

72



120 mm Howitzers

120 mm (12 cm) type 3Howitzer. (TA-219L)

Close-up of 120 mm(12 cm) Howitzer posit ion. Note screen usedto camouflage opening.

(TA-201S)

73



75 mm (Type 3 8 ) Field Guns

Front view of casemated75 mm (type 38) fieldgun emplacement locatedat the base of Suribachlfiring down East Beach.

(TA-132R)

Interior view of 75 mm(type 38) fl-eld gun emplacement snowing extentof damage. (TA-132R)

75



75 mm (Type 38 ) Field Guns

Interior of.75 mm (type 38 )field gun posit ion.

(TA-218A)

Inside view of 75 mm(type 38) field gunposition destroyed.

(TA-201V)

76



75 mm (Type 3 8 ) Field Gun

Ruins of casemated 75 mm(type 38) field gun.

(TA-201V)

Casemated 75 mm (type 3 8)field gun overlookingEast Boat Bas in.

(TA-167A)

77



75 mm (Type 3$> Field Guns

A 75 mm (type 38) fieldgun was located in thiswell-concealed concreteemplacemen t . A s imi larposit ion was locatednearby, and ammuni t ionwas stored in caves atthe rea r. (TA-218N)

75 mm (Type 9 0 ) (Field Guns)

Front view of a 75 mm (type 90 ) AT gun emplacement showing how empla cementswere constructed to blend in with the natural te rrain.

78



75 mm (Type 9 0 ) Field Guns

Rear view of 75 mm (type90) field gun In casematedpositio n. This posit ionfired down runway of airfield No. 2. (TA-200Y)

Alternate posit ion for75 mm (type 90) fieldgun hasti ly constructed,

(TA-200-0)

79



7 5 mm (Type 9 0 ) Field- Guns

Interior view of 75 mm(type 90) field gun.

(TA-217H)

Front view of 75 mm(type 90) field gunshowing constructionof emplacement andhow well the terrainwas utilized forcamouflage. (TA-217H)

80



4 7 mm Anti - Tank Guns

Front view of emplacementshowing thickness of concrete and nature of terrain of surrounding a rea.Originally housed a 47 mmAT gun . Field of fire200° - 250° . (TA-215T)(NE)

Interior view of 47 mm ATemplacement showing damagedone to gun. (TA-132C)

It. V • *,



47 mm Anti -Tank Guns

Front view of 47 mm ATgun shelter showingwhere gun was kept whennot In posit ion.

(TA-132B)

47 mm AT gun emplacementmade of mate rial s at handincluding logs and lavarock. (TA-183N)



47 mm Anti-Tank Guns

Rear view of concreteposit ion for 47 mm ATgun. The field of firecovered the southernpart of airfield No. 2seen in background.

(TA-199W)

Typical 47 mm AT gunshelte r. At the farend of this shelterwas an.entrance to acave and tunnel system which was morethan 800 yds. longand had 14 ent ranc es.It housed two Bn CPs .

(TA-183Q)

T:

84



4 7 m m Anti-Tan k Guns

DRUMS FILLED WITH SAND

o o q o oAMMO. STORAGE

[' 4 \ TRENCH TOSMALL ROCKS AMMO- DUMP<o

CEMENTED TOGETHER

Plan view of a 47 mm AT position. (TA-147I)

f l h h

enemy installation iwo jima 3

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