Stall Flashcards
Stalling is due to
Airflow separation - a reduction of lift and an increase in drag
A large leading radius and thick cambered will give a much
Gradual stall as opposed to a thin , small leading edge radius aerosol
When an aircraft stalls the CP moves
Rearwards causing the aircraft nose to drop
Wing washout reduces
The angle of Incidence - reduces the AoA at the tip
Leading edge slots at wing tips
Re energise the boundary layer
Vortex generators - consist of small thin blades and
Produce vortices on the top of the wing surfaces - adds kinetic energy to the boundary layer - delaying separation
Wing tip stall causes the CP
Centre of pressure to move forward
When the swept wing wing tip stalls
The CP MOVES FORWARD AND INCREASED TAILPLANE DOWNWASH CAUSES NOSE TO RISE RAPIDLY
By fitting Krueger flaps on the leading edge
The wing root can be made to stall before the tips
Load factor =1 in
S&L flight
Density altitude doesn’t affect what type of speed
IAS
If weight is decreases then speed
Decreases
Increase in cl max will do what to the stall speed
Decrease
If CG is infront or CP
The nose will pitch down
Forward movement of the CG
Increases stall speed