can someone explain to me the difference between scramjet and ram jet. cuse even readong about it it sounds like the same thing.
In a ramjet the fuel burns in a subsonic airflow. I remember seeing in 1955 a Dutch helicopter that flew thanks to a pair of ramjets fitted to its rotor tips. Those tips were of course subsonic but the noise was, even at a considerable distance, horrific.can someone explain to me the difference between scramjet and ram jet. cuse even readong about it it sounds like the same thing.
I think the trope about the Chinese are unable to innovate is more a ideological rather than a racial issue. What they are saying is that the Chinese are unable to innovate because of the current political system in China.Hope stories like these put all those semi-racist op-ed pieces about China somehow never being able to master engines (with a strong whiff of racial reasoning implied) to bed.
Chinese turbofans are not yet up to western standards because the west has decades more experience in their design and manufacture. That and the western hi-tech embargo on China means its very hard for China to make up ground since the west is also constantly improving and effectively moving the goal posts on what western standards means.
However, if we look at the progress China has been making on ramjets and scramjets, one gets an idea of Chinese capabilities compared to the west when China started off with a far smaller handicap.
In many respects, this is a competition on resources.
In the past, the west has cumulatively invested far more time and money on turbofan engines, so its little wonder they are still some ways ahead of China.
However, in recent years, China has been able to invest huge sums of money, as well as finally having developed all the tools necessary to help them with their work to world leading standards, like wind tunnels and supercomputers etc. As such, it is able to make impressive progress and appears to even be pulling ahead of western efforts, which have suffered because of budget cuts in recent years.
Its all down to cold hard figures, and not some mystical 'creativity gene' too many western (and more than a few Chinese) commentators have been believing in.