12/31/2005. Remarks by Bernhard C. F. Klein: "Proposed high-altitude medium bomber with pressurized crew cabin. The first prototype was first flown on April 26, 1942. Aircraft was to be fitted with remotely gun turrets, using periscopes on fuselage top and bottom, which are best visible on the third photo.

The second aircraft was a high-attitude photo reconnaissance aircraft alternatively fitted with a camera package in the bomb bay and designated NA-67 XB-28A (USAAF s/n 40-3058, c/n 67-3417).

Both types were cancelled, the second aircraft crashed into the Pacific Ocean on August 4, 1943. Several sources called it the "Dragon" but it never officially was given that name." View also photo 6306.