This was B-57B 53-3918, rebuild as WB-57F 63-13295 by General Dynamics. As such it served with the 58th Weather Squadron based at Kirtland AFB, NM before arriving at AMARC as BM074 on 26 July 1972. It was retrieved from storage in May 2011 and rebuilt to flying condition using from parts from 63-13290 and 63-13293. In July 2013 it was delivered to the NASA as WB-57F N927NA.

Built as B-57B 53-3918. Extensively modified by General Dynamics with higher power engines, extra wingspan etc as RB-57F 63-13295. Later redesignated WB-57F. To AMARC on 26 July 1972, but retrieved from storage in May 2011 and rebuilt to flying condition using from parts from 63-13290 and 63-13293. In July 2013 it was delivered to the NASA as WB-57F N927NA.