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Why is China still heavily reliant on Russian turbofan engines?

According to Abraham Mahshie, the cause of such dependence is the lack of tacit knowledge: China is still lagging because Russia withheld advanced secrets. China’s struggle in this area isn’t due to ...
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How to compute the mass flow rate for a turboprop at cruise given the static sea level value?

What you are attempting to calculate is an off-design operating condition based on a known reference point (Sea Level Static performance, which is usually off-take performance). You cannot simply do ...
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How to determine engine CG in order to calculate moments acting on it?

Here’s one way to do it: start at the nose of the aircraft (or anywhere you like) and determine how far back each component is behind that. Then consider the CoG which is some distance X behind the ...
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