Are there MORE explosives in slow torpedoes?

[Temujin]

I'm playing with 91% Realism (only external view still on).
I made several attacks on a C2 cargo ship (saved game, over & over)

Every time I used a 'gas torpedo' on fast speed, hitting in the middle of the ship with the same result - the ships was hit, but did not sunk...

The last time, I decided to use the electric torpedo.
On detonation there was a huge blast, pieces flow on the air out of the middle of the ship, and the ship finally sunk.

It came onto my mind that maybe, the slower torpedoes types ware built with less room for fuel and more space for the explosives. Making them 'stronger'

I've tried to find some info about my assumption but with no success.

Is that true?
Do the slower torpedoes contain more explosives?

TIA,

Temujin

[Deimos01]

All torpedos have the same warhead and they dont carry fuel. The G7a are steam powered and could be set to 3 different speeds. The G7e and all the later LUT and FAT ran on electric power and could only be set to 30 kts.

The reason for the big exposion was probably because you hit them in a vital area such as a fuel bunker.

[Letum]

or you hit a ammo ship

BOOM!