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Aviation History
1954
1954 - 0203.PDF
22 January 1954 93 RINGING the CHANGES WITH a twenty-minute flight from Boscombe Down by Tom Brooke-Smith a few days ago, the Short S.B.5 adjustable-wing research aircraft entered on the third phase of its test programme. The first was with 50-deg wing sweepback and high-set tailplane, the second with 60-deg sweep and the same tail configuration, and the present arrangement, as shown in these pictures, is 60-deg sweep and low tail. Before long the sweep will be increased to 69 deg. An innovation, clearly visible here, is the curious triangular portion of "droop- snoot" leading edge in way of the tailplane. This particular arrangement is intended to delay the stall and improve longitudinal stability; wind-tunnel tests show that it should prove more effective, in the case of the low-set tail- plane, than the former continuous-droop arrangement.
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