wrote

passed down war stories will attest to how reliable our
torpedoes weren't. pat wilks and dennis palmer formed a corporation
during the 80s to develop the technology for light aircraft, and flew
an Archer around to airshows to promote it. Then they got into a pi$
$ing match with a company call axial vector technologies (originally
over licensing the technology to axial), and lost the right to further
develop (or for that matter even talk about) the engine.

Reply to above post, from Jim:
The major problem with the torpedoes were the fact that they would not go
"boom" when they got to the target, not the engines.

Yes, there were some engine problems, but they were reliable enough.
--
Jim in NC