Taxi tests
began with the first prototype in April 1943 and
the aircraft was found to have stability issues,
particularly at high speeds. The problem eluded
the engineers but was thought to involve the
wheel brakes. Further testing was postponed
until manual hydraulic brakes were fitted.
Problems with the powerplant as well as other
systems conspired to delay the initial flight
until September 30, 1943 at Muroc, CA. |