Testing problems of vector thrust turbofans arising from incorporation of thrust deflection by means of rotating jet nozzles; details of test bed installed at Bristol Siddeley Engines to test Pegasus engines; interior of cell is 130 ft long, 39 ft wide and 44 ft high; problem in designing cell was layout of exhaust ducting; solution lay in construction of 4 separate manifolds, each 16 ft high, which extend from ground level to full height of nozzles when they are in horizontal position; round-the-clock testing is possible with nozzles operated in same manner as in flight and with minimum perceptible noise level outside bed. (See also Flight v 83 n 2813 Feb 7 1963 p 192; Aircraft Production v 25 n 3 Mar 1963 p 91)
VTOL turbofan test-bed
Aircraft Eng
Aircraft Engineering ; 35 , n 3
1963
Article (Journal)
English
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Engineering Index Backfile | 1963
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