The wooden fins fitted to torpedo's on the Taranto raid.

[PAT303]

So I've always wondered how the wooden fins worked on the torpedo's dropped at Taranto, I was lead to believe that they caused to torps to rise up immediately after hitting the water but I was wrong, the wooden fins ''flew'' the torpedo's on a flatter trajectory so they hit the water at a much shallower angle that normal.
View: https://youtu.be/JweZK_ii8c4?t=1050

 

[SaparotRob]

I wondered about that too.

 

[cammerjeff]

I always knew that torpedo's were complicated, but that video shows they are more complicated than I thought, I also did not know the air fin angle was controlled by an angle of attack vane. Very interesting!