Aerodynamic

Question 1

What is swept wing?

Answer 1

they have a “swept” wing root to wingtip direction angled beyond (usually aftward) the spanwise axis. This has the effect of delaying the aerodynamic drag rise caused by fluid compressibility near the speed of sound, increasing performance.

Question 2

Best rate of climb? Vy

Answer 2

Maximize the altitude gain per unit time. It allow pilot to maximum their climb while sacrificing the least amount of time

Question 3

Best anglers climb? Vx

Answer 3

Maximize the altitude gain per unit ground distance, it allow pilot to maximise their climb while sacrificing the less amount of ground distance

Question 4

What is Vso, Vs1, Vfe, Vno, Vne?

Answer 4

Vso
Power off stalling speed with flaps and gear down

Vs1
Power off stalling speed with flaps and up

Vfe
maximum flap extended speed
160knt

Vno
maximum structural cursing speed
128knt

Vne
Never exceed speed
160kts

Question 5

Wt is maximum endurance?

Answer 5

Piston occur at minimum power speed

Jet flies at minimum thrust speed

Question 6

What is maximum range speed?

Answer 6

For piston it is minimum drag speed. For jet has to fly 1.32x minimum drag speed

Question 7

what is coffin conner?

Answer 7

occur when the aircraft flying at a high altitude. stall speed will increase and speed of sound decrease.
this reduce the band of normal operation speed an aircraft can operate.

Question 8

What is absolute ceiling?

Answer 8

There is no excess of power only one speed will allow steady, level flight. Zero rate of climb

Question 9

What is Service ceiling?

Answer 9

Altitude that ac Is unable to climb at a greater than 100feet pre minute