Sentences with word «ramjet»

Faster — and quieter — airplanes NASA's hypersonics research is pushing aviation speed limits with ultrafast scramjets (supersonic combustion ramjet engines): In 2004, the agency's unmanned hypersonic X-43A craft briefly reached Mach 9.6 (about 7,000 miles per hour)-- a record for an air - breathing engine.

To reach hypersonic speeds, current systems will need to be replaced by what engineers call «air - breathing» systems, which could be achieved by scramjets (also called «supersonic - combustion ramjets»).

Surviving his athletic debacle, he earned a Master of Science degree in aeronautics, and is now vice-president and a member of the board of the Marquardt Corporation, a company that develops and produces such sophisticated hardware as ramjet engines, electronic trainer simulator systems and attitude - control rocket systems.

Supersonic systems are powered by ramjet engines and operate in the range of Mach 2 - 4, while hypersonic missiles operate on scramjet engines and over Mach 5.

Something that could be obtainable in a decade or two is using a hypersonic ramjet stage [an extremely fast type of jet engine] to get up to a very high speed in the atmosphere and then launching something from it into orbit.

Like jet engines, ramjets mix and compress incoming air with fuel, but they do so with a clever geometric design rather than with huge compressor blades.

It shares doors, roof and hatch with the Stingray, but fenders, quarter panels and carbon fiber hood are its own, as are the half - NACA / half ramjet quarter - panel snorkel ducts feeding air to the gearbox (left side) and differential (right side) coolers.

But a good chunk of humanity will survive, and wind up using fusion powered hydrogen ramjets to reach the stars, rather than the vanishing fossil fuels.

The major propulsion systems currently in use are turbojets, turbofans, and ramjets.

In comparison to turbojet and turbofan engines, which have high thrust levels, ramjet and scramjet engines are simpler in design as they lack rotating components (and therefore do not have major moving parts such as spinning blades).

Wurst's idea is to mate the engine with a new airplane design, take the craft up to an altitude of about 30 miles, at which point the ramjets can no longer be used, coast to an altitude of 60 miles, then release the satellite payload with a small conventional rocket attached.

Wurst and his colleages, however, managed to find a way to force air and fuel into the jet at great pressure, simulating the ramjet effect even at rest.

Rather than use rocket engines, which have to lug their own oxygen, Wurst wants to use a ramjet, a sort of super jet engine commonly used on planes that travel three or more times the speed of sound.

But when serious engineering studies followed up on Robert Bussard's suggestion, the ramjet idea fell through.

If cows were retrofitted with Methane Capture and Storage units, we could launch whole herds of them, like four - legged GHG - powered ramjets, up at the invaders — «V» (for Vidal) Weapons of Mooing Destruction!