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Both engines are designed around existing ramjet technology, but the Scimitar engine lacks the rocket features and has high bypass features for greater efficiency. The engines burn liquid hydrogen as fuel. [2] The incorporation of lightweight heat exchangers in the main thermodynamic cycles of these engines is a new feature to aerospace propulsion.
The FV107 Scimitar is one of the CVR(T) series of vehicles. The first prototype was completed in 1971. [3] After being accepted for service in 1973, deliveries to Belgium and the UK commenced in 1974. [3] Initially, the engine was the Jaguar J60 4.2-litre 6-cylinder petrol engine, the same as used by several Jaguar cars.
The Scimitar engines use technology related to the company's earlier SABRE engine, which is intended for space launch, but here adapted for very long distance, very high speed travel. [citation needed] Normally, as air enters a jet engine, it is compressed by the inlet, and thus heats up. It needs much more power to compress that heated air ...
SABRE (Synergetic Air Breathing Rocket Engine [4]) was a concept under development by Reaction Engines Limited for a hypersonic precooled hybrid air-breathing rocket engine. [ 5 ] [ 6 ] The engine is designed to achieve single-stage-to-orbit capability, propelling the proposed Skylon spaceplane to low Earth orbit.
The chassis is a conventional tracked design with the engine at the front and the driving position to the right. Directly behind the driver's position is the vehicle commander's hatch. There is a large round opening in the passenger compartment roof, which has a split/folding (concertina) hatch, and a (right hand) side-hinged door in the rear ...
The Supermarine Scimitar is a single-seat naval strike aircraft that was designed and produced by the British aircraft manufacturer Supermarine. Operated exclusively by the Royal Navy 's Fleet Air Arm , it was the final aircraft to be entirely designed and manufactured by Supermarine.
The LEP was carried out on the Scimitar and Sabre reconnaissance vehicles, Spartan APCs, Sultan command post vehicles, Samson recovery vehicles, Samaritan ambulances and the Striker anti-tank vehicle. The major part of this upgrade was the replacement of the Jaguar 4.2-litre petrol engine by a more fuel efficient Cummins BTA 5.9 diesel engine. [11]
Modern usage of scimitar propellers centers around turboprop and propfan engines. Since these forms of propulsion are capable of driving a propeller at transsonic or supersonic rotational speeds, as well as propelling aircraft to similarly high speeds, mitigation of wave drag is an important consideration in achieving high aerodynamic efficiency.
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