All Questions
8
questions
2
votes
4
answers
1k
views
Reason for lower air pressure above an airplane wing
I am posing this question from the perspective of a novice. I read an article, from Scientific American, titled "No One Can Explain Why Planes Stay in the Air". The article explains how, while we ...
- 219
0
votes
4
answers
938
views
Why don’t people on an airplane experience “weightlessness”?
People in the ISS feel weightless because they are in perfect orbit around the Earth, and only gravity is pulling on them. By that logic, why aren’t people in airplanes weightless? A plane stays at a ...
- 117
0
votes
1
answer
223
views
rocket vertical landing [closed]
SpaceX has published a couple of videos that show one of their heavy-lift rockets landing vertically in a highly specific location.
How is it possible that they are able to control so many ...
- 31
2
votes
3
answers
720
views
Is fuelless aviation possible?
I've read the article Gravity powered aircraft flies with no fuel. This is making me confusion, as I can not discern if it is credible.
Is it an hoax?
- 169
0
votes
2
answers
2k
views
Will a helicoper which is hovering inside a closed box move with the box when we move it? [duplicate]
I got this micro helicopter to play with, you know that cheap double bladed ones you can find for $25 or so. Anyway last night I was on bed trying to sleep and I got this idea, what if we put the ...
user23971
5
votes
1
answer
3k
views
Can a hovering helicopter travel half the globe in 12 hours? [duplicate]
Suppose we have a helicopter that is able to stay stationary in flight for extended periods of time. If such a helicopter stayed at point A in the sky for 12 hours straight, would it reach the other ...
- 161
2
votes
2
answers
296
views
What mechanisms exist for generating lift on a static object?
What mechanisms exist for generating lift on a static object?
Condition is: Other than propellers
I know that generating lift on a static object in a sense of anti-gravity for e.g. drone is not ...
- 604
1
vote
3
answers
5k
views
Aircraft Level Flight Trajectory
An aircraft climbs to 15000 feet and enters 'level flight' phase. My basic knowledge of physics says that forces on the aircraft at this time are balanced - as seen in this diagram.
Would an aircraft ...
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