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Questions about the different choices that aircraft designers (typically aerospace engineers) make in order to create an aircraft.

3 votes
1 answer
231 views

Did older Airliners use a pitot-static system?

Aircraft like the B707, how would the aircraft gather speed and altitude data? And if they used pitot static system by that time, was there ever anything else that gathered the speed data?
George Clooney In a Mooney's user avatar
2 votes
1 answer
1k views

Why did Lockheed Martin give the F-22 stealth fighter such small fuel tanks?

Why did Lockheed Martin give the F-22 stealth fighter such small fuel tanks while the F-35 got much more fuel capacity relative to its size and single jet engine?
George Clooney In a Mooney's user avatar
1 vote
3 answers
706 views

Is it possible to have a fully electric airliner?

Is it possible to have a fully electric airliner? How much room would have to be sacrificed for a power bank in these aircraft to allow similar range to the current models (e.g., A320, 737, etc.)? W …
George Clooney In a Mooney's user avatar
6 votes
1 answer
1k views

How do aircraft manufacturers determine the elevator size?

I’ve heard some pilots say the MD-11 (I think?)was made with too much elevator, and that it’s an overkill. So now I’m curious, how do they determine the length for the elevator? Is it possible to ma …
George Clooney In a Mooney's user avatar
15 votes
3 answers
5k views

Why were the windows on the Concorde about the size of a hand?

I just saw a comparison between the 787 and Concorde windows. I could be wrong but it almost seems like a hand could cover the majority of the window.
George Clooney In a Mooney's user avatar
1 vote
1 answer
13k views

Why does the Pratt & Whitney 747 have an extra engine on the right side but not left side? [duplicate]

What’s the purpose of this design, and why only on one side?
George Clooney In a Mooney's user avatar
1 vote
1 answer
283 views

Why can’t aircraft use GPS to generate the IAS, instead of using pitot tubes? [duplicate]

I’m mostly asking after reading about Aeroperu Flight 603, which was caused by a piece of tape blocking the sensor. Is there any other way to gather IAS or is this the best way to do it?
George Clooney In a Mooney's user avatar
-1 votes
1 answer
692 views

How can a runaway trim become so difficult to fight when all a pilot has to do, is “grasp an... [closed]

and how can you even tell the pilots did “grasp and hold” during an investigation? Is it determined based off what they say?
George Clooney In a Mooney's user avatar
4 votes
2 answers
632 views

If Boeing used two sensors instead of one simultaneously, wouldn’t they be in the same posit...

this article states that the original version of MCAS was suppose to rely on two sensors, One sensor will detect a high angle of attack, therefore activating MCAS The other sensor will detect a high …
George Clooney In a Mooney's user avatar
19 votes
3 answers
11k views

Why does Boeing use a trim wheel in the 737 and not their other products?

Why does Boeing use a trim wheel in the 737 and not any other products? Is the trimmed state for the 737 just more important than in the 777? Or even 747? It gives the impression that a secondary …
George Clooney In a Mooney's user avatar
5 votes
2 answers
2k views

Why does the KC-46 use two sensors for MCAS when the 737 Max doesn’t?

this article states The KC-46 has a two-sensor MCAS system, which “compares the two readings,” the Air Force said. I’m aware that the 737 uses two sensors and always has, but the computer reads …
George Clooney In a Mooney's user avatar
1 vote
1 answer
227 views

How did the Brazilian Civil Aviation Authority have MCAS on paper from Jan 2018?

how could they know but nobody else did? Did they buy the extra sensor or something?
George Clooney In a Mooney's user avatar
2 votes
1 answer
207 views

Why do small jets usually have one low flap setting?

For example, the CRJ has a flap setting of 0, 8, 20, 30, and 45 degrees. The Learjet has similar features across their models, as far as I can see which is 0, 8, 20, and 40 degrees Why do smaller …
George Clooney In a Mooney's user avatar
2 votes
1 answer
539 views

Does ELMS inhibit cabin pressure alarms on the 777, and would the MEC Override Vent be stuck...

I found this article rather interesting, but like most things on the internet, they can be wrong. I couldn't think of a better site to address this question. This user says: when ELMS takes over powe …
George Clooney In a Mooney's user avatar