New water speed record boat makes public debue

[FranklinRatliff]

Originally Posted by Karsten

On modern high bypass turbofan engines water ingestion is not much of an issue. Due to the centrifugal forces when the water hits the big fan at the front most of it is thrown to the outside and never enters the hot engine core. This one looks like an old sucker though. No idea why they don't use a bypass engine. Pure jets are only required if you want to move at the speed of sound or faster and I'm not sure if they want to go that fast. It's probably for engine cost reasons.

The Rolls Royce Spey is a low bypass turbofan and provides all the power they need. A pair of Rolls Royce Speys drive the turbines of a British 30 knot 4,900 ton Type 22 frigate. The supersonic Thrust SSC jet car was powered by a pair of afterburning Speys.