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The RamJet was very inefficient at low speed, because it relies on compression of air to burn the fuel effectively. “
I’m into pulsejets and ramjets as a hobby, maybe even an invention. I have a chart somewhere that shows ramjet efficiency equals turbojet at about Mach 2.4.
I’m into pulsejets and ramjets as a hobby, maybe even an invention. I have a chart somewhere that shows ramjet efficiency equals turbojet at about Mach 2.4.
Find the chart after Mach 2.4 for a Ramjet.
Crew have personally told me that to date NOBODY knows how fast the SR-71 really is, because they were never allowed to reach maximum speed of the Ramjet. The Titanium airframe couldn’t take what the Ramjet could produce. They did mention that the plane was ‘rated’ to Mach 2.5, but stated they felt it was ‘much faster’.
So.....How long has the US had manned Hypersonic Nuclear bombers again? Oxcart anyone?