DASH 1 Sec 6: Flight Characteristics Flashcards
Define Critical mach number
IAS at which the air velocity over the wings reaches Mach 1.0.
Critical mach number will always occur at aircraft speeds greater than Mach 1.0.
FALSE
Critical mach number will always occur at aircraft speeds less than Mach 1.0.
TRUE
_______ is one of the most effective methods of increasing the critical mach number.
sweptwing design
The maximum lift capability of a swept-wing aircraft is ______(less or more) than a straight-wing aircraft.
less
The reduced lift capability of swept-wing aircraft is mor evident at (low/high) airspeeds.
low
The decreased lift capability of swept-back wings on the T-1 at low airspeeds is offset by ______.
Fowler-type flaps
The disadvantage of swept-back wings is _______(in terms of stall progression).
they cause a stall progression from the wing tips to the wing root
Name four things that is gained by the T-tail aft engine design
- Cleaner wing design 2. Lowers drag and increases maximum lift 3. Increases vertical tail and rudder effectiveness 4. Reduces downwash on the horizontal stabilizer
A “deep stall” is when you feel the aircraft buffet.
FALSE
A part of a “deep stall” can be describe as an AOA where the tail enters the turbulent wakes of the wings.
TRUE
The T-1 has _____ type flaps.
fowler
The rudder is more effective than the spoilers in picking up a low wing at low airspeeds.
TRUE
With the speed brakes extended, roll forces will increase but roll rate will decrease.
FALSE
______ degrees of pitch change is required to maintain level flight while lowering flaps to 10 degrees.
4
____ degrees of pitch change is required to maintain level flight while lowering flaps from 0 to 30 degrees.
8
____ degrees of pitch change is required to maintain level flight while lowering flaps from 10 to 30 degrees.
4
Why is the limiting airspeeds for flaps 30 degrees 165, while it is 170 to lower flaps to 30.
pitot-static installation error.
As fuel is burned, the T-1’s CG moves.
forward
The T-1 is less pitch sensitive with a ______ (forward or aft) CG.
forward
T-1 pilots only have to worry about wake turbulance and not cg problems during takeoff and landings.
FALSE
At low altitude (I.e. final approach), to minimize your exposure to wake turbulence avoid the area ____ and ____ the preceeding aircraft.
below; behind
Dudring a dive recovery the speed brakes will provide a lot of deceleration
FALSE,
Still pop them out, but prioritize pulling up first
During single-engine operations in the T-1, more drag is created using the spoilers to counter asymmetrical thrust than using the roll trim tab.
TRUE
Dutch roll is most evident at _____ airspeeds and _____ altitudes.
low/hig
Name the three methods the Dash-1 recommends to dampen Dutch Roll.
yaw damper, autopilot, manual
The primary method to eliminate Dutch Roll in the T-1 is _____
yaw damper
During flight, the stick shaker will activate at approximatley _____ units on the AOA.
0.8 to 0.85
During flight, the stall warning light and horn will activate at _____ units on the AOA indicator
1
The stick shaker may activate at as low as _____ units AOA at high altitudes.
0.5
The T-1 is less likely to spin with a forward CG than an aft CG.
TRUE
The airspeed indicator is not reliable in a spin.
TRUE
A compressor stall is characterized by a thumping sound.
TRUE
