PoF New Flashcards
CLmax =
1/Vs sq
Load factor =
Lift/weight
Wing loading =
Weight/wing area
Cdi =
(Cl^2/AR)K
Wing platform/aspect ratio
Lift in a balanced climb/descent =
Weight x Cos gamma (gamma = climb/descent angle)
Load factor in a climb/descent =
cos gamma (climb/descent angle)
Climb angle (assuming lift = weight) sin gamma=
T-D/W
Or
T/W - Cl/Cd
Turning
Load factor in a turn =
1/cos bank angle
Radius of turn (m)=
TAS^2/g X bank angle (knots x 0.514 = m/s)
Rate of turn =
TAS/turn radius
Or
G x tan bank angle / TAS
Stalling
New Vs when masses known =
New Vs = old Vs x sqrt new mass/old mass
Stalling
New Vs when LF known =
Old Vs x sqrt load factor
LF for given G with a speed change =
((Max g-1) x (new speed/old speed))+ 1
If new speed less than 1.3vs likely to stall first so call for new stall speed:
new stall speed = old x sqrt LF
LF = Vs^2
Aspect ratio =
Span/mean chord
Span^2/area
Pressure =
Density x temp