X-19
The Curtiss-Wright X-19 began as a commercial venture to develop a small, 4-passenger, executive VTOL aircraft, designated the M-200. The American armed forces were interested in the design for reconnaissance, transport and tactical support applications. The four unshrouded propellers were powered by two turbines and rotated 90° at the tips of two thin wings with a 6m span. The X-19's performance in the airplane mode was disappointing. Despite a maximum cruise speed of 650km/h, its payload capacity was less than 550kg. The first prototype was damaged on its second flight on 20 November 1963. Flight testing resumed on June 26, 1964, and on 25 August 1965 The aircraft crashed into a nearby swampy area and was totally destroyed. The second aircraft was never flown.
