Aeronautics and astronautics – Aircraft structure – Fuel supply
Patent
1976-09-29
1978-05-16
Kelmachter, Barry L.
Aeronautics and astronautics
Aircraft structure
Fuel supply
60 3928R, 137567, 244 55, 244135C, B64D 3700
Patent
active
040894932
ABSTRACT:
By employing in-line gas turbine power plants in the nose and tail of a low profile highly streamlined aircraft, twin engine reliability is obtained with only a single engine frontal area combined with the employment of strakes rather than pipes for the nose engine exhaust, excellent fuel economy is obtained. While a nose mounted turboprop serves as the main power supply, a tail mounted turbojet with only a small fraction of the turboprop horsepower provides a supplementary power source during take-off or optionally to enhance cruise performance. Should the turboprop fail in flight the turbojet is capable of taking over at a reduced cruising speed. A fuel system common to both engines offers additional safety features and an improved method for effecting proper trim with either or both engines operative.
REFERENCES:
patent: B508940 (1976-02-01), Risse et al.
patent: 2817396 (1957-12-01), Booth
patent: 3419233 (1968-12-01), Wotton
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