Recent Examples of ramjet from the Web
In order to start up, though, ramjets typically need a speed boost from something else—usually a booster rocket.
Why, for example, does the mothership appear to be some sort of sleek supersonic/hypersonic aircraft with what looks like ramjet engines?
The ramjet instead uses the shockwaves created by traveling at such high speeds to squeeze incoming air.
Integrating a turbine engine and a ramjet/scramjet will come with some significant engineering hurdles to clear.
To bridge the gap, Aerojet Rocketdyne will need to both increase the maximum operational speed of the turbojet and decrease the minimum operational speed of a ramjet.
In addition to being faster, ramjets can travel three times as far on the same amount of fuel as a standard rocket motor.
U.S. Navy engineers at the Naval Air Warfare Center Weapons Division recently designed and flew a prototype ramjet missile in just six months.
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