Before the test program on the JB-1 with
the General Electric engines was
completed, the program received direction
to replace the turbojets with a copy of the
German pulsejet engine, and was renamed
the JB-10. Ford Motor Company
provided the engine, which was a copy of
the V-1 design. Cruise speed of the
design was about 425 mph. Only 11
JB-10s were constructed.