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Aviation History
1959
1959 - 1787.PDF
10 FLIGHT 14 AUGUST 1959 The NA. 39 is ahead " * BOUNDARY LAYER CONTROL AT FLAP\ HINGE LINE I WING,V- LEADING EDGF -^ NO BOUNDARY LAYER CONTROL BOUNDARY LAYER CONTROL AT FLAP HINGE UNE 4 8 12 INCIDENCE-DEGREES This diagram "Flight" copyright) shows a typical air-blowing, boundary layer control system. The graph indicates the gain in lift which • simple flap-blowing can achieve. .': Boundary layer control over the total span enables the NA.39 wing to attain the highest lift coefficient yet achieved on any high speed aircraft. Control and handling during take-off and landing are 5 : ;-• exceptional. , ; ••! " In the low-level strike role, the NA.39 is ahead of any other aircraft in the world" Ministry of Defence Blackburn SHIELDED BV GUIDED MISSILES «ND SWEPT 8* fiADJR VULNERABLE GAP IN DEFENCES BLACKBURN AIRCRAFT LIMITED, BROUGH, YORKSHIRE AI4C;a
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