About AirPlane?
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(FAI) 25,000kg 250cc
By Seo Jin Won


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By Seo Jin Won
3. Work and Power
4. Vector
5. Moment
6. Energy
(Aerodynamics)
.   .  (liquid) (gas) .   (viscosity) (internal friction) .
By Seo Jin Won
% (percentage)
(Nitrogen) (Oxygen) (Argon) (Carbon Dioxide) (Hydrogen) (Neon) (Helium)
78.08 20.94 0.94 0.03 0.0012 0.0004
By Seo Jin Won
( , .)
: 50km
( )
( )
:
By Seo Jin Won
4. Density, Temperature, pressure, Humidity
(density) , .   (take-off), (rate of climb), (maximum load), (true airspeed) .    , , .
By Seo Jin Won
1/2 = 1/2 = 2/1
, .  , , .   , .
By Seo Jin Won
(Aerodynamics)
(water vapor) , 0.002378 slug/ft3 0.001476 slug/ft3 .  , .   .
By Seo Jin Won
: .
: .
() : ( .)
: .
:
:
By Seo Jin Won
() :
() :
:
:
:
:
By Seo Jin Won
By Seo Jin Won
( )
1.  (Lift) : .
2.   (Thrust) : .  
3.  (Lift) : . !  
4. (Weight) : . , !
By Seo Jin Won

(laminar flow), (turbulent flow) .   , .
(transition) ,  (critical reynolds number) .  , .   .
By Seo Jin Won
1) (static pressure,P)
2) (dynamc pressure,q)
 
  P + q = ()
() () .
By Seo Jin Won
( )
( P1) P1 > P3 > P2 .  , .
, 2 .  3 .
, ( ) " , ." .   .
By Seo Jin Won
( )
(,) (Venturi Tube)
By Seo Jin Won
()
By Seo Jin Won
()
By Seo Jin Won
()
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(AIRFOIL) .
By Seo Jin Won
( )
(4)  
(5)
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By Seo Jin Won
( = )
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By Seo Jin Won
( )
By Seo Jin Won

.
( ) , .
. .
By Seo Jin Won

By Seo Jin Won
(Angle Of Attack) &
(Incidence Angle) (Angle of Attack) .
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By Seo Jin Won
(Angle Of Attack)
By Seo Jin Won
(Airfoil)
(Airfoil) 1908 . . . . . .
By Seo Jin Won

: .
: .
: , .   C .
: . .
: 2 , .
By Seo Jin Won
: , .
: , .
: , .
: , , .
: , .
:
By Seo Jin Won

: , (Flap) . .  12~20% , 2~6% .
: , . . 12% , .
: .  , .
By Seo Jin Won

"". . ? .
. . . . .
By Seo Jin Won
By Seo Jin Won
γ: (degree),
 D: (lbs)
 L: (lbs)
(gliding flight) , . (gliding angle)
By Seo Jin Won
By Seo Jin Won

(Flap):   (auxiliary surface) , CL CD .
By Seo Jin Won

(Plain Flap):   (hinge) (camber) .
(Slot Flap):   , (gap) .   .   CLmax .
By Seo Jin Won

(Split Flap):   (flat surface) .   CLmax  (turbulent wake) .
(Fowler Flap):   (track) .   .   CLmax   .
By Seo Jin Won