Skip to main content

Questions tagged [jet]

*Jet* is a generic, informal term for an aircraft with jet propulsion. In a civilian context it may refer to an airliner or small private jet.

Filter by
Sorted by
Tagged with
0 votes
1 answer
250 views

What role do the winglets on the next-generation 737 play? [duplicate]

I've flown on a couple of 737's recently and noticed that the wings are quite beautiful and have a distinctive upward sweep at the wingtip, almost like a vertical stabilizer. What advantages and what ...
ebrohman's user avatar
  • 978
20 votes
5 answers
8k views

Why don't most fighters have thrust reversers?

With the exception of the Panavia Tornado, fighters do not have thrust reversers. Why is this? Why does the Panavia Tornado have them?
Madhav Sudarshan's user avatar
9 votes
2 answers
3k views

How do most fighters slow down after landing?

I understand that many fighters use drogue parachutes and wheel brakes. But aren't there other methods of slowing down after touchdown?
Madhav Sudarshan's user avatar
10 votes
4 answers
8k views

Are strategic bombers still useful, or are fighters taking over this role?

During the mid 20th century and cold war, armies were having clear distinction between those aircraft designed as strategic bombers and those designed to be fighters for aerial combat. My ...
Trebia Project.'s user avatar
26 votes
2 answers
8k views

Why does NASA have F/A-18s?

I always remember playing FSX as a kid and using the NASA F/A-18, and never thought much about it. And then I saw the picture of the Space Shuttle on top of the 747 being escorted by these planes. ...
Keegan's user avatar
  • 6,897
13 votes
5 answers
7k views

Why don't fighter jets take off vertically?

I've heard the claim repeated many times that some modern fighter jets have an installed thrust greater than their weight, so theoretically they could accelerate straight up. I've never actually ...
raptortech97's user avatar
  • 5,138
13 votes
2 answers
4k views

Why would some flights use props instead of jets?

Two years ago I flew from Tel Aviv, Israel to Tromso, Norway via Riga and Oslo. The Tel Aviv-Riga leg was flown in an A320, and the Riga-Oslo and Oslo-Tromso legs were flown in prop planes, Fokker ...
dotancohen's user avatar
  • 6,377
49 votes
2 answers
39k views

What are these wavy lines on fighters' canopy?

As shown in the images below, what are these wavy lines on the canopy of the aircraft? Do these lines have any utility? These are mostly captured in videos of cockpit views of carrier-based aircraft.
Raj's user avatar
  • 2,088
36 votes
14 answers
13k views

Why do passenger jets accept input that will cause the aircraft to perform dangerous maneuvers it was not designed for?

Examples: A bank angle > 45 degrees is considered an “upset,” putting the plane in a position that can lead to a loss of control. A pitch > 20 degrees can possibly be dangerous and cause the ...
user1151923's user avatar
1 vote
1 answer
1k views

What is the response time of Pulse Doppler Radar?

We have the Airborne Pulse Doppler radar for weather predictions which are I think same as in the A350s and also in fighter jets so, what is the response time of these radars? For example, if a ...
NitinG's user avatar
  • 6,889
10 votes
2 answers
5k views

What happens if fuel tanks are hit by gunfire?

In June 2014, a PIA airplane was targeted by machine gun fire while landing. I wonder what would had happened if the fuel tanks were hit? An explosion, perhaps? But in an episode of Myth Busters, ...
Rafael8181's user avatar
13 votes
2 answers
6k views

Do fighters have black boxes?

Or is it just commercial aircraft? I was watching an episode of Scorpion where an "F-120 Firehawk" crashed and they looked at its black box. So, do normal, non-imaginary fighters have them?
ptgflyer's user avatar
  • 2,156
35 votes
4 answers
22k views

Do fighter jet pilots ever use autopilot?

I know that military jets have autopilot, but do the pilots actually prefer to use it? I ask this question because, unlike civilian airplanes, military jets are more likely to come in a situation ...
Registered User's user avatar
0 votes
1 answer
186 views

Are there any heavy lift jets (like Stargazer) with zoom climb (like Ye-66A MIG-21)?

Are there any intercept jets (that can zoom climb like 1961 April 28 113,891ft Ye-66A Mig-21 Turbojet) built for heavy lift? I see the Stargazer and Stratolaunch as really slow heavy lift vehicles ...
bob smith's user avatar
3 votes
1 answer
2k views

How does pressure increase in a multistage compressor?

Given the overall pressure ratio of a multi-stage compressor, how can I calculate the increase in pressure at each stage? Does pressure increase linearly at every stage, or does it increase ...
techSultan's user avatar
  • 1,068
29 votes
6 answers
6k views

Can a fighter jet land on a modified airliner?

Imagine this scenario: A modified military 747 is flying at a constant speed and altitude. On the top of the fuselage there is a device like a helipad but with three holes to accommodate the fighter ...
user60684's user avatar
  • 847
18 votes
3 answers
5k views

Why don't airplanes have smoking cabins?

Is there any airplane model that has a small lavatory-like cabin just for smoking? I have never seen any such planes and that made me wonder why this is? It would not take much more room than a normal ...
user1151923's user avatar
31 votes
5 answers
8k views

How do aircraft refueling in-air deal with wake turbulence?

Many fighter planes have the capability to refuel in air. When a plane moves in air, turbulence is generated at its back. To refuel, the fighter plane must come near to the parent plane (which has ...
Santhi Kabir's user avatar
21 votes
2 answers
40k views

Why don't big commercial planes have full aircraft parachutes?

On smaller aircraft, like some Cirruses for example, they have parachutes attached to the body of the aircraft that can help the plane get to the ground safely in an emergency. I'm wondering why ...
Jae Carr's user avatar
  • 24.2k
22 votes
2 answers
10k views

How do fighter jets communicate with an intercepted plane that's lost comms?

RAF Typhoons were scrambled today to intercept an Antonov 26 that lost comms, triggering a sonic boom over London. The flight was escorted to Stansted airport, and the answer at What's the point ...
Danny Beckett's user avatar
18 votes
2 answers
10k views

Why is the de-icing fluid sprayed on jets coloured orange?

On a cold night or if it's been snowing, jets are sprayed with orange de-icing fluid: But why is it orange? If it's to see where's been sprayed and where you've missed a bit, black would be the most ...
Danny Beckett's user avatar
72 votes
12 answers
17k views

Why don't commercial jet aircraft have a break-apart, parachute escape system?

Imagine that the pilots on a jet aircraft determine that it will crash. Consider what would happen if the design of the craft allowed it to: Break into four pieces Each piece is pressurized ...
Corey's user avatar
  • 777
17 votes
1 answer
6k views

Why do wings of passenger jet go dark during a flight?

Why do certain areas on passenger jet wings go dark during a flight? This effect is observed on high altitude where temperature is low. When airplane descends, wings return to their initial color. ...
ayampolsky's user avatar
12 votes
1 answer
14k views

Do military pilots have flight & rest hours regulation?

I have read that civil pilots have stringent regulations regarding flight hours and hours of rest between flights. What about military pilots? Does it change between wartime and peacetime? Between ...
sdfsdf's user avatar
  • 1,225
95 votes
11 answers
61k views

Why do fighter jets still have guns/cannons?

I noticed that the "new" F-35 still has a GAU-22/A cannon installed in it -- albeit with only 182 rounds (more with ammo pods). Why do fighters still have cannons? The day of dogfighting is long ...
RoboKaren's user avatar
  • 8,071
63 votes
6 answers
107k views

How do fighter pilots manage food, drink & toilet?

There doesn't seem to be any place to bring food or drink. And what about WC? And for single seat combat planes?
carbalona's user avatar
  • 631
41 votes
4 answers
87k views

Why does an aircraft leave a white smoke trail?

Why does an aircraft leave a white smoke trail?
Tom's user avatar
  • 513
126 votes
9 answers
42k views

How do jet fighters get to war?

Currently Australia is deploying F/A-18E/F Super Hornets to the UAE to fight in Iraq. Obviously the UAE (and Iraq) is a very long way from Australia and well beyond the typical range of one of these ...
thexacre's user avatar
  • 1,260
30 votes
12 answers
14k views

Why does flight training usually start with (unsafe?) propeller planes and not with (safer?) jets?

I live in the UK and would like to learn flying jets, but most courses seem to start with propeller planes. Not sure if this might be a misconception about the safety of different aircraft types, but ...
PropellerHater's user avatar
5 votes
1 answer
2k views

Is there a model to calculate fuel burn over the Atlantic ocean given an arbitrary aircraft identification?

Is there any accurate model that can take flight data, plane identifications and compute the amount of fuel that the aircraft would burn flying a set route over the Atlantic ocean.
user1750289's user avatar
13 votes
4 answers
2k views

Are modern fighter jets allowed to fly with an inoperative ejection seat?

I'm wondering if a modern fighter jet (Eurofighter, JAS Gripen, F-35 etc.) is allowed to fly when the ejection seats are known not to be in working order.
Thunderstrike's user avatar
16 votes
3 answers
4k views

What's the name and purpose of a barrier raised behind a carrier based jet?

I saw this picture in Wikipedia with a Su-33 jet on carrier deck with some barrier raised from the deck behind the jet tail: What is this barrier for and what's the official term for it?
sharptooth's user avatar
  • 1,243
35 votes
3 answers
5k views

When might a pilot hand-fly a jet at cruise altitudes, and is it difficult?

How difficult is it to hand-fly a jet at cruise altitudes? Other than autopilot failure and just doing it for the fun of it, when might you want to hand-fly at those altitudes? I suspect the answer ...
Terry's user avatar
  • 39.2k
12 votes
2 answers
6k views

Do aircraft engine intakes require air filters?

I see helicopters which have air filters in their engine intakes, but jet fighters and commercial turbojet airliners don't seem to have any filters in their air intakes. Isn't it true that even tiny ...
ashpool's user avatar
  • 223
62 votes
5 answers
50k views

How is a missile lock detected?

How can a fighter aircraft involved in a face-off detect a missile lock from a trailing aircraft so that it can make evasive maneuvers?
Amod's user avatar
  • 1,417
14 votes
1 answer
2k views

Are you allowed to do your entire PPL on a medium-sized jet aircraft from day one?

I'm wondering if say, hypothetically, I had a friend who had a large aircraft (e.g. Learjet), could I do my PPL hours on it from day one, or is there anything stopping this?
Thunderstrike's user avatar
14 votes
4 answers
4k views

How do jet engines work?

I was doing research about jet engines, and they seem really difficult to fully understand. So, can anyone explain it in a simple way? An afterburner glows on an F-15 Eagle engine, source: Wikimedia. ...
Gabriel Brito's user avatar
35 votes
2 answers
96k views

Which engine is more efficient between turboprop vs jet?

Are turboprops really more efficient than jets? If yes, does that mean that airlines who use jets sacrifice fuel for faster flights?
Taher Elhouderi's user avatar
11 votes
1 answer
507 views

Do the shock waves from a supersonic plane affect general aviation planes?

Are there any considerations to take into account when flying around supersonic aircraft? I know that wake turbulence from large aircraft can pose a threat to smaller planes. Is the same true of the ...
flyingfisch's user avatar
  • 14.6k
32 votes
3 answers
20k views

Why do turbine engines take so long to spool up?

Piston engines reach full rpm within a second or two, but turbines take much longer. Why is that?
ptgflyer's user avatar
  • 2,156
5 votes
1 answer
914 views

Do Grumman F-14s, Panavia Tornados, and other swing-wing airplanes count as "fixed-wing aircraft?"

I'm just wondering because the wing isn't fixed, but they aren't rotary-wings either.
ptgflyer's user avatar
  • 2,156
11 votes
3 answers
5k views

Where does the Oxygen for the emergency gas masks come from?

Normal commercial jets drop gas masks when cabin pressure drops, and supply oxygen, but, where does that oxygen come from? Do commercial jets store oxygen? If they do, isn't pressurised oxygen very ...
ppp's user avatar
  • 1,415

1 2 3 4
5