Mk37 hits own ship after leaving tube

[Burns]

Mk 37 torpedoes sometimes blow up their launching platform right after leaving the tube.
While doing some tests i noticed that this happened only when the torpedoes course crossed the bow (ie ownship course) at a 'shallow' angle, near parallel. If the angle is a bit steeper they pass the submarine safely.

I made an example video for better understanding:

https://youtu.be/apYR5FsFLgo

In the first half you see 2 torpedoes being fired across the bow ( from starboard tube to a course left of the bow or vice versa) at a rather steep angle, some 20-30°. The torpedoes pass (sometimes through the bow :D ) safely.

In the second part, some 38 seconds in, the torps cross the bow at a shallower, near parallel angle and detonate.

Hope this helps. I was wondering whether this could be by design, simulating some RL torpedo limitation, but i guess then the same thing should happen at the steeper angles?

[Wraith_Magus]

You were doing 10 knots in the instance where you hit yourself.

Yes, 10 knots is "too fast" to fire a Mk 37, and you will outrun your own torpedo and it will detonate on you. (Even when you fire dead ahead.)

Yes, that's MASSIVELY frustrating when that happens.

[Burns]

I see, makes sense.
So the issue is not the angle but the fact that the sub didn't steer clear of the torp in time.
The steeper angle i was talking about simply created more distance since it moved away from the sub. I never noticed that i was going slower in that part of the vid.

Thanks.

[r4y30n]

This is only an issue with boats that have midship tubes, the Skipjack is immune. That said, if you're sailing anything else you can fire the Mk 37 at up to 10 kts so long as you fire from the side you're aiming for.

(The Mk 37 cruises at 17 kts and increases to 26 after activation)