Francis L.'s user avatar
Francis L.'s user avatar
Francis L.'s user avatar
Francis L.
  • Member for 5 years, 6 months
  • Last seen more than a month ago
39 votes
3 answers
8k views

How is it possible for supersonic aircraft to push air out of the way?

22 votes
6 answers
7k views

What are the least powerful airplanes that ever flew?

13 votes
3 answers
2k views

Does glide ratio improve with increase in scale?

12 votes
4 answers
4k views

Why isn't there a single best airfoil for subsonic flight?

9 votes
7 answers
3k views

Why don't bypass ducts in jet engines narrow down the flow to accelerate it?

7 votes
3 answers
1k views

Why don't turbofan engines have shrouds affixed to the fan blades?

7 votes
1 answer
315 views

What is the top speed of the twin seat Hawker Hunter?

6 votes
1 answer
757 views

Has fuel boiling ever been an issue for high altitude aircraft?

5 votes
2 answers
768 views

How significant is the lift induced drag contribution to total drag of aircraft at cruise speed?

5 votes
3 answers
1k views

Are there advantages to slotted wingtips?

4 votes
4 answers
2k views

Why is "proverse" yaw better than no yaw?

4 votes
4 answers
1k views

What would happen if I exceeded mach 1 over a regulated area?

4 votes
2 answers
2k views

Is there an aircraft that can go supersonic at sea level without using afterburner?

4 votes
1 answer
617 views

Do ramjets use variable geometry supersonic inlets?

4 votes
2 answers
1k views

How would the wave drag of an elongated Sears–Haack body change with a cylindrical mid section?

4 votes
3 answers
790 views

Do modern aircraft still use load bearing ribs in wing construction?

4 votes
4 answers
733 views

Why did wings start to be made with aluminium skin instead of fabric?

3 votes
3 answers
338 views

Why don't piston engines require as heat resistant materials as jet engines?

3 votes
5 answers
1k views

Is wing sweep needed on supersonic aircraft?

3 votes
1 answer
295 views

What was the first Russian jet designed with the use of area rule?

3 votes
3 answers
295 views

Could a moving film of gas reduce aerodynamic drag?

3 votes
1 answer
9k views

What is the general process for flying a private aircraft to another country?

3 votes
0 answers
110 views

Could injectors be used as an alternative to turbopumps in jet engines?

3 votes
1 answer
292 views

Why are liquid ring compressors not used in a jet engine?

3 votes
1 answer
422 views

Why were trim tabs invented?

2 votes
3 answers
276 views

Is it possible to make an analogy between a lever and an airplane wing in terms of force applied over distance?

2 votes
1 answer
380 views

What is the late BF109's (G models) internal fuel capacity?

2 votes
2 answers
496 views

What happens when you apply full cyclic + collective?

2 votes
1 answer
166 views

Is there a good online source on rotating detonating pulse engine?

2 votes
3 answers
627 views

Did any VTOL aircraft implement an airfoil with engine-blown exhaust?