Certain plane engines

Usage examples of ramjets.

Moresby was painfully aware of the gap in intelligence: he didn't know the identity of the bandits, the ramjets, didn't know friend from foe save for the uniform he might be wearing.

He thought it likely the ramjets had swept the station after the fence was breached, burning what was flammable and stealing or destroying the remainder.

Okay, a lot of big Bussard ramjets on the rim walls would be enough to keep the Ringworld centered.

But Bussard ramjets commonly used magnetic monopoles, and monopoles could be valuable in other contexts.

Do you remember finding a rig for hoisting the Bussard ramjets on the rim wall?

They saw only the flames of the Bussard ramjets burning enriched fuel.

There might well be a repair crew in action somewhere, but they had almost run out of Bussard ramjets to be remounted.

He drew the double superconducting toroids they’d found remounted on the City Builder spacecraft: Bussard ramjets taken from their mountings on the rim wall.

That’s what your Anne was doing: intercept every City Builder ship as it comes back from the stars, tear out the Bussard ramjets and mount them on the rim.

The vampire protector could be anywhere, if he’d trained High Point protectors to mount the ramjets for him.

A pulsejet develops thrust at rest, and could boost a vehicle to high subsonic velocity where ramjets become efficient.

Supersonic ramjets need careful attention to the region just ahead of the duct inlet, where a spike-like cowl produces exactly the right disturbance in the incoming air to make the ramjet efficient at a given speed.

Such a compact heat source would power ramjets without fuel tanks, or it could vaporize a working fluid such as water.

Huge attitude jets stand atop the rim wall, Bussard ramjets using the solar wind of protons for their fuel, to hold the Ringworld against its inherent instability.