Covered here are thirty-eight secret research aircraft flying between 1946 and 1974. The bulk are British and French, but others from Switzerland, Sweden and Germany are featured. Examples include the Saunders-Roe SR.A/1, Armstrong Whitworth AW.52, Leduc 0110, 016, 021 & 022, Avro 707, Saab 210,  Sud-Est Baroudeur, Fairey Delta 1 & 2, the extraordinary SNECMA C.450 Coléoptère, and the Hawker P. 1127. Each is described in informative text, with photos (B&W and colour), drawings both technical, and showing liveries. 302 very well produced pages. Hardbound.