Guys, please be kinder to one another. Lurkers such as myself like to read these exchanges for education. The thinly veiled (or not) barbs at each other don't help by-standers understand the subject matter better.
Chinese Engine Development
- Thread starter jackbh
- Start date
I did that and I will say that I was unnecessarily snippy. What I should have done from the beginning is explain why your discussion of airstream speeds is a non-sequitur when we're considering the maximum speed of aircraft.
It's correct that an air-breathing engine does no work (and thus produces no thrust) if the inflow and outflow speeds are equal. We all understand conservation of momentum. However, aircraft (civilian and military) engines do not operate anywhere close to the inflow/outflow equilibrium. The outflow speed is always substantially higher than the inflow speed (the speed at which the aircraft is travelling).
What determines the maximum speed of the aircraft is the balance between the thrust of the engines (which can drop the faster an aircraft is moving) and the drag the aircraft experiences (which increases as the faster an aircraft is moving). Yes, the aircraft is not producing the sea-level stationary thrust in all its flight regimes, but that doesn't change the fundamental balance of forces argument.
Get back to topic please.
what are these. can you explain
The third-gen SiC material, could be used on nuclear reactor and blades of turbine.
Actually they are not the only one who produces such material and AFAIK SiC could be also used to make nozzles for ICBM PBV.
Check out here with NASA introduction:
萌虎鲸 privately said that new-gen engine has been put on high altitude test and repeatedly said it should come no later than 2035.
Not sure how credible he could get on new engine development as he actually does NOT a good track record on ICBM development as far as I can tell but there you go.
Not sure how credible he could get on new engine development as he actually does NOT a good track record on ICBM development as far as I can tell but there you go.
Yeah, people don't just throw things away when they work well and meet the need. My mom still kept using the Panasonic CRT TV at home which is older than many people here in the forum.
new generation engine means, variable cycle engine ? if yes then i would say 2030. coz this project made significant progress in materials as per the news announced yesterday in material conference held in Xian.
What’s the news on Ceramic Matrix Composites?
Not really, he meant to say new-gen engine with T/W ratio > 12.