User Hobbes

6 votes

As at 2020, why don't fighter jets have ≥ 200 rounds for their cannons?

answered Sep 12, 2020 at 8:18

4 votes

Why can't we see the downwash/wake roll-up behind 2D/wall-to-wall airfoil tests?

answered Aug 20, 2020 at 7:18

6 votes

What is the purpose of a movable inlet on a jet engine?

answered Aug 18, 2020 at 13:03

22 votes

What are these "winglets" on the roof of the 737?

answered Aug 10, 2020 at 11:21

35 votes

Why is the A380's fuselage designed with a flat bottom?

answered Aug 3, 2020 at 8:34

1 vote

Accepted

Which industry started to develop CFD software?

answered Jul 25, 2020 at 10:54

0 votes

Accepted

Which CFD software is used in Boeing and Airbus?

answered Jul 24, 2020 at 7:42

2 votes

Where are the fuel tanks located in an Antonov An-225?

answered Jul 15, 2020 at 12:30

3 votes

What materials form the structural elements of the Boeing 737?

answered Jul 14, 2020 at 7:53

1 vote

Is PVC tubing a good material for helicopter airframes?

answered Jul 11, 2020 at 8:34

17 votes

Accepted

Why does the UK CAA restart its page numbering with every new chapter of their CAP publications?

answered Jul 10, 2020 at 7:32

30 votes

Accepted

Can you identify this scrap cockpit section I found in a scrapyard?

answered Jul 5, 2020 at 17:14

4 votes

Was it ever considered to optimise a jet to normally operate with one engine shut off?

answered Jun 26, 2020 at 17:08

17 votes

Accepted

What is the function of Boeing C-17 Globemaster III in the Indian Air Force?

answered Jun 7, 2020 at 13:46

6 votes

Accepted

How did the long loop of tape in a magnetic cockpit voice recorder work?

answered Jun 2, 2020 at 7:19

1 vote

Why did early 747s have only two or three windows on the upper deck on each side?

answered May 31, 2020 at 18:39

2 votes

What is the life limit due to metal fatigue in large bombers?

answered May 25, 2020 at 12:56

4 votes

Would a piston or turbine engine be best suited for a small UAV flying 8000miles?

answered May 17, 2020 at 16:13

1 vote

Can an automatic gearbox improve engine transmission for an ultralight?

answered May 16, 2020 at 12:00

0 votes

Accepted

Is the ratio of HP to weight constant for identical air frames of different sizes? (See Scenario)

answered May 3, 2020 at 8:50

5 votes

Accepted

Which is more efficient: a jet engine or a rocket-powered engine?

answered Apr 29, 2020 at 8:03

1 vote

How does a UFO fly so fast?

answered Apr 29, 2020 at 11:21

5 votes

Why does it take so long to develop a passenger aircraft?

answered Apr 27, 2020 at 8:49

2 votes

Can any modern commercial airliner currently in service take off vertically?

answered Apr 27, 2020 at 17:00

2 votes

The NASA X-57 uses 12 electric motors for takeoff. Does it need 12 control levers or just one?

answered Apr 27, 2020 at 16:05

31 votes

Are there any aircraft with a 4-wheel nose landing gear and a 16-wheel main landing gear?

answered Apr 25, 2020 at 9:04

3 votes

Accepted

Are high bypass turbo jet engines suitable for tail and body mounted engines

answered Jan 4, 2020 at 12:50

7 votes

Can helicopters have engines running while rotor blade stays stationary?

answered Dec 19, 2019 at 10:21

29 votes

Is an afterburner louder than the same jet engine without it?

answered Nov 25, 2019 at 9:26

5 votes

Why do new jet engines cost billions to design?

answered Nov 14, 2019 at 10:40

Stack Exchange Network

125 Answers

As at 2020, why don't fighter jets have ≥ 200 rounds for their cannons?

Why can't we see the downwash/wake roll-up behind 2D/wall-to-wall airfoil tests?

What is the purpose of a movable inlet on a jet engine?

What are these "winglets" on the roof of the 737?

Why is the A380's fuselage designed with a flat bottom?

Which industry started to develop CFD software?

Which CFD software is used in Boeing and Airbus?

Where are the fuel tanks located in an Antonov An-225?

What materials form the structural elements of the Boeing 737?

Is PVC tubing a good material for helicopter airframes?

Why does the UK CAA restart its page numbering with every new chapter of their CAP publications?

Can you identify this scrap cockpit section I found in a scrapyard?

Was it ever considered to optimise a jet to normally operate with one engine shut off?

What is the function of Boeing C-17 Globemaster III in the Indian Air Force?

How did the long loop of tape in a magnetic cockpit voice recorder work?

Why did early 747s have only two or three windows on the upper deck on each side?

What is the life limit due to metal fatigue in large bombers?

Would a piston or turbine engine be best suited for a small UAV flying 8000miles?

Can an automatic gearbox improve engine transmission for an ultralight?

Is the ratio of HP to weight constant for identical air frames of different sizes? (See Scenario)

Which is more efficient: a jet engine or a rocket-powered engine?

How does a UFO fly so fast?

Why does it take so long to develop a passenger aircraft?

Can any modern commercial airliner currently in service take off vertically?

The NASA X-57 uses 12 electric motors for takeoff. Does it need 12 control levers or just one?

Are there any aircraft with a 4-wheel nose landing gear and a 16-wheel main landing gear?

Are high bypass turbo jet engines suitable for tail and body mounted engines

Can helicopters have engines running while rotor blade stays stationary?

Is an afterburner louder than the same jet engine without it?

Why do new jet engines cost billions to design?