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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Are there reference speeds like V1, Vr or V2 for a touch and go procedure?
Are there any reference speeds like V1, Vr and V2 on a touch and go procedure?
During takeoff, these are used to mark certain states of the takeoff, including the speed at which the aircraft starts ...
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4answers
277 views
What are the advantages/disadvantages of in-fuselage engines (eg most fighter jets) vs wing/fuselage mounted engines?
Most modern jet fighter designs incorporate their engine(s) within the fuselage, while most other medium/large aircraft mount them either under the wings or on the rear fuselage.
What are the ...
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1answer
132 views
What is this yellow tube blowing air? [duplicate]
What is this yellow tube (lower right quadrant of the picture) which is blowing air into the airplane while it's at the terminal? You can see the open hatch on the bottom of the jet through which it's ...
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1answer
108 views
Who made the first high-wing jet airliner?
I thought the only high-wing jet airliners were made by the Soviets but the British Aerospace RJ-100 and Dash 6 series twizzled my mind.
So who made the first high-wing jet airliner?
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3answers
394 views
Are modern fighter jets bulletproof and armored?
Are modern fighter jets bulletproof and armored? One would not be wrong given part of their operations is being on the receiving end of enemy ammunition shooting at them.
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662 views
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99 views
Would it be possible to start a modern airliner from cold & dark during flight? [closed]
Imagine a suicidal pilot or disturbed passenger who gets access to cockpit, messes with the buttons. He shuts down engines, IRS, and battery, it's the middle of the night at cruise altitude.
Would it ...
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0answers
78 views
Are there any feasibility studies or research regarding the possibility of using Jet A in tropical countries?
Based on the ASTM D1655 standard specification for turbine fuels, the only difference between Jet A and Jet A-1 is the freezing point. Max [min?] -40 degrees Celsius (-40° F) for Jet A and max -47 ...
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1answer
370 views
Is there a significant difference between the jet blast from Airbus and Boeing?
I am looking up for jet blast data and there are not much information in the net.
One of the main references I can found are the Airport Planning of each aircraft.
From these can be obtained that the ...
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2answers
442 views
How do they fill fuel in big aircraft?
Being a passenger, I usually will have view from only one side of these planes and hence don't know if same thing is happening on other side of the plane. I have observed hoses connected to wings, but ...
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1answer
789 views
Are turboprops less safe then jets?
On a recent trip to an airport, I noticed a large number of Bombardier Dash 8s. I wanted to know - are turboprops less safe than traditional jets like the 737 or A320? For instance, I would imagine ...
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2answers
313 views
Is there an additive that can lower the freezing point of jet fuel?
Does an additive exist to decrease the freezing point of jet fuel? I have found an additive that decrease the freezing point generated by drops of water (appears between 0 and -10°C), but I'm needing ...
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2answers
281 views
What is the cheapest plane one can buy to fly above Mach 1 and be able to pull 8g plus?
Which plane would you suggest for someone who would like to be able to fly fast enough to break the sound barrier, yet also be able to pull lots of Gs?
What would be the price of such a plane, and ...
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3answers
369 views
Why does load shedding still occur in jetliners (e.g., 787) when there is so much power available?
I had a few questions about how electrical generator works on an aircraft, the 787 to be specific although I know it is similar for all aircraft.
So the 787 engines have 2 VFSG each which are rated ...
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1answer
357 views
Is there an aircraft that can go supersonic at sea level without using afterburner?
Is there an aircraft that can go supersonic at sea level without using afterburner? Quick look through the "supercruise" capable aircraft might be helpful in narrowing down the possibilities, though I ...
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1answer
217 views
How does Boeing Deliver single aisle jets to South east Asia? [duplicate]
I am not sure if they can fly on full tank gas to their destination (say India or Thailand), but how does Boeing deliver single aisle jets to these destinations. I read somewhere about the process of ...
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1answer
371 views
What kind of jet fighter is this?
I visisited Tirana, Albania the first week in August. Outside a shopping mall called "TEG" there was an old jet fighter on display. I can't recognise what make and model this is. Can anybody here help ...
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2answers
212 views
Is it possible to power a very small jet using batteries? [duplicate]
I have read a lot of answers on batteries powering large commercial jets, and how it won't work. However, for a small jet like the Honda jet, would it be possible for it to be powered completely by ...
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2answers
195 views
How significant is the lift induced drag contribution to total drag of aircraft at cruise speed?
How significant is the lift induced drag contribution to total drag of aircraft at cruise speed? From what I've learned so far it seems to be around 10 to 15 percent of total drag. I suspect the ratio ...
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4answers
788 views
What drives the shape of an engine's intake on a fighter jet?
Rectangular intakes have more corners which might increase subsonic pressure losses and would weigh larger than a pitot (Semi-circular) type intake. Are the designer drivers solely based on supersonic ...
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2answers
1k views
Why does the diffuser section generate thrust in a jet engine?
I am studying the thrust distribution of jet engines.
But I'm now a bit confused.
In Rolls-Royce's "The Jet Engine" book,
http://aeromodelbasic.blogspot.com/2012/05/thrust-distribution-distribution-...
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2answers
3k views
What is the horizontal stabilizer failure procedure?
During the final flight of Alaska Airlines Flight 261:
The CVR transcript reveals the pilots' continuous attempts for the duration of the dive to regain control of the aircraft. At one point, ...
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2answers
584 views
Why is there still a preference for turboprop airliners over the new regional jets? [duplicate]
In the 1950s and in the early 1960s, jets were mostly available as fighter/military or big, long haul aircraft. Regional aviation was based primarily on piston aircraft that could operate in smaller ...
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3answers
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Why didn't early jetliners use turbofans?
For subsonic operation, high-bypass turbofans seem to have essentially only advantages for efficiency, noise and takeoff thrust, at least until they reach the size where ground clearance or LP/fan ...
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1answer
4k views
What is this aircraft seen at Peachtree City, GA?
Sorry for the poor quality, but this jet was taking off from Peachtree City Regional on Sunday 13 May. Anyone know the aircraft?
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1answer
837 views
Is military grade jet fuel more expensive than civilian grade?
Is military grade jet fuel more expensive than civilian grade?
Why are governments moving away from military grade jet fuels?
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1answer
223 views
Is making faster military fighters even practical?
I was curious after reading a book on Cold War plane development about the Soviet ideology of making increasingly powerful jets that could break Mach 3 and so on. With the advent of BVRAAM's such as ...
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2answers
764 views
How are military jets given official names?
How is a military jet given a nickname? Does the manufacturer name the plane? For example, did Lockheed Martin name the Raptor (F-22) and Lightning II (F-35)?
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1answer
207 views
How does jet training work for private pilots? Are there jet trainers?
For a private pilot (not an ATP) that wants to get ratings for jets, how does that work?
What kind of training aircraft is used typically?
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1answer
122 views
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.
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2answers
2k 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).
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5answers
775 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 ...
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3answers
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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 ...
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1answer
151 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 ...
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6answers
478 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?
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9answers
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Why don't aircraft use nuclear propulsion?
Nuclear propulsion research for aircraft was abandoned during the 50's.
Why wasn't it revived ever?
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4answers
5k 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 ...
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1answer
5k 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.
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0answers
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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 "...
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1answer
872 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 ...
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9answers
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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 ...
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1answer
515 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 ...
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1answer
649 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.
...
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1answer
317 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 ...
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2answers
241 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?
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1answer
231 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 ...
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4answers
383 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 ...
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1answer
796 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 ...
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5answers
602 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.
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1answer
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 ...
