Unanswered Questions
1,353 questions with no upvoted or accepted answers
-3
votes
1
answer
304
views
How many mid-ocean battery swaps are needed for an electric A380 to refly the first transatlantic flight?
Context
To understand what the current level of electric airplane propulsion is with respect to large passenger airliners I developed the following question:
Question
How many battery swaps would be ...
-4
votes
1
answer
273
views
Would an extra fan make turbofans more efficient in cruise?
A turbo fan engine cannot use all of its available thrust in cruise any longer that it normally does at today's technologies, otherwise it would risk a meltdown of the internal hot engine parts and ...
-5
votes
2
answers
3k
views
What is missing from these diagrams of the forces in slips and skids?
See these images that are widely reproduced in many different on-line ground school materials.
A) Is the magnitude of the wing's lift vector illustrated correctly in each of the three cases? Should ...