I’ve been pouring through my books, & Google has proved a faithless friend. I appeal to the SDMB for help.
In the waning days of WW2, in the Pacific Theatre, the US military fielded an anti-ship rocket (not guided missile). It was gyro-stabilized in flight, optically aimed, & air-launched. 10 mile range, very large warhead. Intended to destroy cargo vessels.
Used in field tests against Japan.
Testing interrupted, due to lack of targets (Japan being rather short of merchant craft, by then).
Name/designation of weapon?
Aircraft used as platform?
Additional data?
Links?