As part of a
United States Army Air Forces effort to develop guided missiles for the delivery of nuclear weapons, the Northrop Corporation was awarded a development contract in March 1946 for the design of two long-range cruise missiles designated MX-775. The contract called for a
subsonic missile MX-775A, later designated
SSM-A-3 Snark, and a more advanced
supersonic missile MX-775B, which in 1947 was given the name SSM-A-5 Boojum. Northrop named the missiles after characters from the works of
Lewis Carroll, with
Boojum coming from the final line of
The Hunting of the Snark. Designated N-25B by the company, the final design called for a long, slender missile, fitted with
delta wings, and powered by a pair of
General Electric turbojet engines, mounted in
nacelles near the tips of the wing. The Boojum was intended carry a warhead weighing up to over a range between . ==Cancellation==