You have got to be kidding me?. There is a ton of planes that carry Torpedos. Just look at the CFS2 page that carries planes in this same Website  and you should find all the planes you would want to implement in your game.
I have also posted the address of other Websites in this Forum that will help you find even more planes available for this Simulator.
There are weapon packages available for down load that include torpedos as well.
The only requirement is that the planes were design to carry Torpedos.
For a small example . Go to the Campaign section in this Website and look for the AF Midway Mission section. Down load them. Follow the instruction and you will find A Kate and SBD with Torpedos included. Besides this are some nice missions to fly. Thats what I call a double treat.
No fighter was capable to carry Torpedos since they were not design to carry them because they where to heavy.
You will never see a Hellcat with a payload that included a Torpedo. That will not be a true representation of reality.

thanks,,like i said,iam new to this,,,,,but thanks again for the info    watch your six   only1bill

I'm sure you can have an unlimited supply of any external weapon by a simple edit of the DP file. Download MW''s weapons pack & read the instructions to find out how it's done. http://www.mnwright.btinternet.co.uk/cfs2/weapons.htm

Of course, for practice it's probably more convenient to select Unlimited Ammo from CFS2 Realism settings. A single torpedo has to run its full distance or hit something before you get another one.