<article><hdr>Ground shot of a Curtiss-Wright X-19</hdr><body>
<hi style=afpcap>The rapid development of aviation designs enabled flying machines to take off vertically with the creation of the helicopter. Despite the obvious success of rotary wing types, several manufacturers elected to proceed with design work for vertical take off aircraft powered by turbo-prop engines. Amongst these was Curtiss-Wright whose X-19 was ordered in 1962 with two prototypes were fitted with radial lift force propellers</hi>