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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.

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What type of batteries are used in airline planes? [closed]

In Embraer 145 and Boeing 777 I mean material, recharge cycle, nominal current and voltages. From the comments I don't understand the difference if the plane is turboprop or turbofan.
riccs_0x's user avatar
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8 votes
2 answers
7k views

What is the typical voltage used on jet airliners?

I have seen several parts that use 28 Volts DC, is this a standard for jet airliners (e.g., Airbuses and Boeings).
riccs_0x's user avatar
  • 341
4 votes
5 answers
3k views

What is the lightest weight operational jet/turboprop fighter ever deployed in combat?

Since the beginning of WWII there was been a trend towards larger fighter aircraft. In about 1960 the United States continued with larger fighters (F4, F100, F111, F15) but also started a branch of ...
jwzumwalt's user avatar
  • 11.5k
15 votes
3 answers
2k views

What fighters have both 1 & 2 engine versions?

Northrop originally built the F-5 "Freedom Fighter" (and T-38 "Talon") with two engines. Later it was re-fitted with a single F404 engine from the F/A-18, re-designating it the F-20 "Tigershark" to ...
jwzumwalt's user avatar
  • 11.5k
0 votes
1 answer
850 views

Are there any calculations involved for designing pulse jets? [closed]

Are there any requirements for calculations to determine things like exhaust length, combustion chamber size, etc? Also, does the end of the combustion chamber need to be a semi-sphere, or can it be ...
S.Stevens's user avatar
  • 143
5 votes
6 answers
784 views

Why mount multiple autocannons on a fighter or CAS aircraft as opposed to a revolving barrel auto-cannon with a higher rate of fire?

Why would one design an aircraft with multiple chain guns instead of a single large rotary cannon, like the GAU-8 Avenger, and similar weapons?
ClippedWings22's user avatar
52 votes
9 answers
22k views

Why don't aircraft use nuclear propulsion?

Nuclear propulsion research for aircraft was abandoned during the 50's. Why wasn't it revived ever?
user avatar
19 votes
4 answers
6k views

What is the smallest manned jet aircraft?

In the movie Spy Kids (2001), there is a scene where the characters board a small jet aircraft "built for one passenger". The aircraft is about 2 meters tall with a 3 meters wingspan, and features a ...
kevin's user avatar
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6 votes
1 answer
23k views

What is the 0-60mph time of an aircraft carrier catapult?

Tesla's new Roadster is giving a 0-60mph time of 1.9 seconds. Truly ludicrous acceleration. I was wondering how a fighter jet released from a steam catapult compares.
David Pochon's user avatar
1 vote
0 answers
143 views

Why were 'business jet' airliner designs so popular in the past? [duplicate]

Let's look at the MD-83 (was Microsoft too poor or they lazily didn't want to waste time to make it flyable in FS2004/FSX?) and the Learjet 35 (yes I used FS95/FS98 in the past). Now, there are some "...
Delta Oscar Uniform's user avatar
7 votes
1 answer
1k views

Can an airliner land safely using only propulsion control?

In this amazing story ,after losing all hydraulic power of the aircraft , Captain Al Haynes guided the plane to the Sioux city, crashed but saved 185 of the 296 lives (United Airlines Flight 232-Sioux ...
no more sigsegv's user avatar
24 votes
10 answers
10k views

Would it be feasible to build a jet fighter plane based on a wooden construction?

I read about the de Havilland Mosquito recently and that it was a quite successful British bomber in WW2 due its lightweight wooden construction. As far as I understand it, usual planes at that time ...
Bruder Lustig's user avatar
6 votes
1 answer
901 views

How does a jet fighter with water-skis land safely?

I just read about the Convair F2Y on the obvious encyclopedic site. It's a delta wing jet fighter from the 1950's, with hydroskis so it can take off and land on water. Can such a landing be made ...
DrZ214's user avatar
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6 votes
1 answer
3k views

How is the jet engine inlet danger area affected when airborne?

Boeing published engine hazard areas as shown below: I am curious as to how the danger area is affected when the aircraft is in flight as the jet engine is still vulnerable to foreign object damage. ...
Zack's user avatar
  • 273
0 votes
1 answer
649 views

Bypass ducts and spinning blades [duplicate]

I want to start out by saying these questions will make me look a fool but i simply haven't found answers for them anywhere so i'm hoping you could help me! What is the purpose of bypass ducts? If ...
JESUS CHRIST's user avatar
6 votes
2 answers
693 views

Can wing clouds caused by a high angle of attack be recreated in a lab? Also, why doesn't this work for smaller wings (e.g. r/c planes)

Can this be recreated in a lab? Any equations would be helpful if so. Also, why doesn't this happen during high angles of attack on a smaller wing, such as that of an R/C plane?
Avi0n1cs's user avatar
1 vote
1 answer
465 views

How much does a drag chute system weight?

How much weight does a drag chute add to a plane? Let's take the Tu-114 as an example. This plane has a loaded weight of 68.1 tons (I could not find a max landing weight figure). I could not find how ...
DrZ214's user avatar
  • 17.8k
7 votes
5 answers
596 views

Were there any test flying incidents during which the pilots managed to escape the plane?

I am only asking about flight testing civilian jets, not military ones. I know that all test pilots have to be equipped with a parachute, so I wonder was there any incident where the test pilots and ...
John Mayne's user avatar
0 votes
1 answer
1k views

How small can turbojet engines be made whilst remaining fuel efficient, light, cheap, and producing enough thrust to carry a human, gas, and casing? [closed]

I've seen many videos of small turbojet engines (small enough to hold in your hands) that produce 30-40 pounds of force. If you mounted a couple of these on a small craft, that wouldn't even support ...
user avatar
4 votes
5 answers
1k views

Is there any flight school that uses jets as part of their training program?

Is there any flying school out there that use "jets" as part of their training program? I mean like a Cessna Citation or Phenom.
Antonio's user avatar
  • 49
13 votes
1 answer
3k views

How does a turbofan with afterburner continue to function in extreme humidity and rain?

From what I understand, the fan(s) collect(s) and compress(es) air into the compression chambers, where fuel is added to the air & combusted to create an even bigger pressure/thrust, right before ...
BravoTwoZero Sadek's user avatar
0 votes
2 answers
2k views

What is this very distinct humming noise coming from the IAE-V2500 engines of the A320 during taxi?

So I am a huge fan of the A320, and in a less broader sense, the A320 with IAE-V2500 engines. Arguably the greatest engines in the industry with the greatest sound. However though, I've had a question ...
user23017's user avatar
-1 votes
2 answers
640 views

What was the first operational U.S. military jet fighter to fly at mach 2?

Was it the McDonnell Voodoo or the Lockheed F-104A?
lady researcher's user avatar
5 votes
3 answers
5k views

What would be the potential thrust of an "electric jet" like Lilium's?

Lilium claims to fly with "electric jets". Throwing out the debate over whether a non-combustion compression of a stream of air is a jet or only a ducted fan, what is the potential thrust each of ...
oeste's user avatar
  • 559
8 votes
3 answers
3k views

What is this plane seen in Mobile, Alabama?

This was taken at the USS Alabama in Mobile, Alabama. It is probably a US Navy aircraft.
Barbara Webb's user avatar
6 votes
1 answer
3k views

What was the first fighter jet that utilised thrust vectoring nozzles?

What is the first fighter jet that utilised thrust vectoring nozzles?
Scorb's user avatar
  • 286
0 votes
2 answers
1k views

How to select a Lead In Fighter Trainer in the presence of both single engine and twin engine fighter jets? [closed]

A major part of fighter pilot training is learning the handling of the aircraft itself. On the other hand, automatic controls on modern fighter jets take away a lot of the pain and hassle. I am ...
AviationCurio's user avatar
2 votes
1 answer
3k views

Where does the final cooling take place in the air cycle machine of the air conditioning system?

On aircraft with an ACM air conditioning, where does the final cooling take place? Is it in the ACM expansion turbine or in the ACM compressor?
KM320's user avatar
  • 349
14 votes
2 answers
5k views

Which commercial aircraft can stay in the air the longest?

Which commercial aircraft, when fully loaded with fuel (and passengers and luggage up to its max takeoff weight), could stay in the air the longest without landing, and how long could it stay in the ...
Jason C's user avatar
  • 383
4 votes
2 answers
2k views

In a fighter jet, what is the average weight of the ejection system?

In the old days, pilots had only a parachute pack. (In the really old days they might not even have that.) They had to open the canopy manually and jump out. Today, fighter jets have zero-zero ...
DrZ214's user avatar
  • 17.8k
0 votes
0 answers
314 views

Why is there such a difference between the study material for the FAA and EASA ATP knowledge tests?

What's the difference between the FAA & EASA ATPL written/knowledge test? The FAA test seems way easier; you just study the Gleim which has 1650+ multiple choice questions and composed of 1,048 ...
Karim Elshawarby's user avatar
3 votes
2 answers
783 views

On a small/micro jet engine, can the turbine blades and vanes be made out of ceramic?

I am researching on how to make a small jet engine, and trying to figure out the materials for rotor and stator blades just after the combustion chamber so that they can hold up to the temperatures ...
Danimal HMHA's user avatar
-4 votes
1 answer
210 views

Advice on making a jet engine [closed]

I'm a software engineer and recently want to make a jet engine myself. Since I am a newbie in this period, I want to know what basic knowledge is needed for making the engine. I wish to use it on my ...
Alfred Chou's user avatar
5 votes
3 answers
3k views

How does a jet fighter landing flare compare to a civilian plane?

How does a jet fighter flare compare to a civilian plane? How low before flaring? Do pilot keep track of pitch or AoA to know how much should be flared? Is flare at last moment like in airliners, so ...
Invariant's user avatar
  • 1,731
6 votes
1 answer
666 views

Are jet engines affected by small bird (e.g. hummingbird) strikes?

If a hummingbird got sucked into a commercial jet engine at takeoff would the pilot notice? This is a serious question.
Dave's user avatar
  • 69
4 votes
1 answer
452 views

Is the Cirrus Vision SF50 the only civilian monojet currently on production?

Since the Piper PA-47 and Diamond D-jet never made it past prototype stage, is the Cirrus Vision the only single engine civilian turbofan jet in production? What other monojets have made it into ...
TomMcW's user avatar
  • 28.6k
7 votes
4 answers
2k views

Would a gimbaled, always horizontal cockpit be beneficial to fighter jets?

Would it be possible to have a spherical cockpit that was gimbaled in jets such as fighters so the pilot was always upright. With all controls in the cockpit wirelessly communicating with the rest of ...
SRawes's user avatar
  • 1,211
32 votes
9 answers
14k views

Is it correct that a jet fighter can be used as a non-lethal (sonic) weapon?

Imagine you have a crowd of people, who want to go to a certain territory (e. g. close to the border). An airplane flies over them such that when it reaches supersonic speed, there is a loud bang. ...
user avatar
18 votes
3 answers
5k views

Can a missile be fired when a fighter jet is inverted?

Is there an attitude limit for firing a missile from a fighter jet? Can the pilots fire them when they're pulling Gs, or inverted?
kevin's user avatar
  • 39.8k
5 votes
3 answers
5k views

Why are the top speeds for jet engines higher than for propellers?

I realize turbines are more efficient than piston engines, but if that were true, then why don't turbo-props reach jet speeds?
yippy_yay's user avatar
  • 7,375
4 votes
2 answers
1k views

Have contrails ever occurred at low altitudes, such as at takeoff?

Contrails form from the exhaust of jet engines condensing to water-ice. Has this ever happened at low altitudes, especially during or immediately after takeoff?
DrZ214's user avatar
  • 17.8k
2 votes
2 answers
4k views

Is the SEPECAT Jaguar's design aerodynamically inferior to more modern jets?

If we compare the SEPECAT Jaguar's design with the latest jet fighters, what aerodynamic shortcomings do we find in its design? (I'm only asking about aerodynamics, not AESA radars, electronics suites ...
user avatar
64 votes
11 answers
26k views

Are the guns on a fighter jet fixed or can they be aimed?

Are the (built-in) guns on fighter jets fixed, or can they be elevated up and down or panned right and left for aiming? In other words are fighter jet guns aimed by pointing the whole aircraft at the ...
MemphisGuru's user avatar
7 votes
4 answers
7k views

Why are civilians not allowed to fly demilitarized US fighter jets?

I have seen it is possible to fly demilitarized Russian fighter jets in the US. Why is it impossible to fly American demilitarized fighter jets?
user18804's user avatar
0 votes
1 answer
374 views

All Electric Jets [duplicate]

I've been researching electric jets, and I have seen a number of schemes. What is the most likely way to build an all-electric jet engine, assuming that the power source is available and practical?
Robert 1221's user avatar
4 votes
1 answer
589 views

Where do most fighter jets and combat aircraft mostly get shot? ex: body, wings, engine area etc

I'm wondering where fighter jets mostly get shot. I'm trying to design a plane that might help this issue if most planes get shot in the wings. If they get shot elsewhere I guess I'm going to have to ...
Dennis Lin's user avatar
9 votes
2 answers
9k views

What is the average speed used by modern jet fighters when in dogfight?

I am asking this question pertaining to a game I'm designing. It is well known that many modern jet fighter aircraft can fly at supersonic velocities however I read that this top speed is hardly ever ...
user1062760's user avatar
12 votes
3 answers
3k views

How is a "fast jet" classified?

In the book 'Pocket guide to military aircraft', they use the term 'Fast jet' for a certain range of aircraft. Is 'fast jet' a common and well defined term used within aviation? If so, how is it ...
anonymous's user avatar
  • 3,574
14 votes
1 answer
8k views

Why are the in-flight refueling probes of French-built fighter aircraft non-retractable?

French-built fighter aircraft seem to have in-flight refueling probes that are not retractable, as seen from the linked images below. What are the advantages of a non-retractable refueling probe that ...
Avi A. Shunn's user avatar
8 votes
1 answer
1k views

Can anybody confirm which aircraft is in this picture?

Image Source Does anyone know what airplane is shown in this picture? It looks like the Republic F-84, but I'm not sure because the front landing gear is under the nose on the F-84 and this one is ...
Victor's user avatar
  • 81