Tagged Questions
0
votes
2answers
104 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 ...
4
votes
3answers
225 views
atmospheric phenomenon? What causes condensation trails to converge?
This air plane just caught my eye. Two contrails apparently are flowing backward, slightly off-centered and then ultimately converge, giving the overall shape of a very narrow rhomboid parallelogram, ...
5
votes
1answer
431 views
Paper plane between two fans - is this possible?
The setup: two fans facing each other, distance around 1m. Both are turned on. In between them, place a simple paper plane and according to this video, it will fly.
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6
votes
5answers
2k views
Does it take significantly more fuel to fly a heavier airplane?
I was reading in the papers how some-airline-or-the-other increased their prices for extra luggage, citing increased fuel costs.
Now I'm a bit skeptical. Using the (wrong) Bernoulli-effect ...
2
votes
1answer
444 views
How does a V formation save fuel for the lead plane?
I'm watching an episode of Mythbusters where they show aircraft saving 3-5% fuel when flying in a tight V formation. Interestingly, this also applies for the lead airplane.
How is that possible for ...
-1
votes
1answer
267 views
How much friction is caused by a 10x10 cm window on the side of an airplane?
Say that the airplane is going in 1000 km/h. On the side of the airplane, there is a 10x10 cm window. How much friction would this window cause. For the sake of the calculation, imagine that the ...
7
votes
4answers
516 views
Why does an airplane have more lift near the ground?
I've noticed that an airplane appears to have more lift when it's almost touching the ground then it has 100 feet or more in the air. What causes this to occur?
