# Questions tagged [principles-of-flight]

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### What is the difference between rate of roll and roll displacement?

I was studying Principles of Flight, I came across a sentence which is my question. _ the aileron is known as a rate control since a given aileron angle of deflection determines a rate of roll, not a ...
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### Stall on low airspeed with high power on right-turning propeller

Q: The pilot of an aeroplane with a single engine and right-turning propeller (clockwise from the pilot’s viewpoint) decides to go around. The pilot raises the nose too much as the power increases and ...
• 129
711 views

### Induced drag vs parasite drag understanding

I am having the following graphic from one of the question for the EASA PPL(A) exam. While I know that: (1) represents "induced drag", as its decreasing with higher speed (2) represents &...
• 387
264 views

### How does deploying full flaps affect Takeoff run and distance?

There is a question in EASA Question Bank (AviationExam) that asks: How will the takeoff distance change if the flaps are increased from 0 to full? (a) Reduce (this is marked as correct since many ...
• 185
123 views

### Why is buffet and/or stall more likely to occur in a thunderstorm? [closed]

the correct answer for this Q is: "Because in a thunderstorm the speed of the aeroplane for a given power setting decreases, and the stall speed increases" I would like to know why in a ...
• 129
1 vote
2k views

### Aircraft load factor and body normal acceleration

A load factor is defined as "the ratio of the lift of an aircraft to its weight", i.e., N = Lift/Weight. Normal acceleration (nz) is defined as the component of the linear acceleration of an ...
• 1,579
387 views

### What causes a normal shock wave on a wing?

I am wondering what causes a normal shockwave on a wing? I mean why does the airflow (that becomes supersonic over a part of the airfoil) slows down somewhere over that wing suddenly to a subsonic ...
• 1,953
1 vote
145 views

### Is this description of lift and drag coefficients correct?

In my course (Principles of Flight) written: The effect of CLift is not linear. This means that Lift doubles for double the lift coefficient. And The effect of CDrag is linear. This means that for ...
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### what is the actual force causes this issue according to IAS that shows normal descend speed?

When we have tail wind during approach , with respect of Aerodynamic forces that effect on airplane , the whole part of fuselage move forward due to tailwind, also we have about 70kts IAS (in general ...
7k views

### How does Propeller windmilling work?

I’ve got a problem with understanding propeller windmilling. What I know is that when rpm are low and tas is high the blade aoa goes „over” the blade and is some kind of negative now, producing thrust ...
• 1,953