Some H-4s had their PVC racks modified to drop torpedoes.
Main armament were air dropped torpedoes and rockets, though it was believed these special Q-5s were capable of carrying one YJ8 air-launched anti-ship missile.
The convoy escorts picked up a few false contacts, dropped high-explosive torpedoes or depth charges, and then nothing.
The pilots conducted low level bombing runs, dropping torpedoes into the shallow depths of Lake Ogawara.
A navy now had the potential to destroy a superior enemy battle fleet using steam launches to drop torpedoes.
Patchy haze limited visibility to 2,000 yards (1800 m) when the plane, incorrectly identified as friendly, dropped torpedoes.
The idea of dropping lightweight torpedoes from aircraft was conceived in the early 1910s by Bradley A. Fiske, an officer in the United States Navy.
In November 1914, Germans were reportedly experimenting at Lake Constance with the tactic of dropping torpedoes from a Zeppelin.
When targets are found, they can drop depth charges, depth bombs or torpedoes.
If he gets within five miles of the ship, he'll drop torpedoes!