Thanks for the compliment. I no longer own or make the Barracuda but I can promise you something better called the Supercuda is coming!
I don't have a pic of the rest but the principal was simple. The turning of the screw was in essence the same thing as a cylinder moving a shaft. The screw was the cylinder and the shaft. There was a little piston resting on the bottom of the vertical that when the screw was turned the fluid moved the piston. I don't know if it was a completely enclosed system or if it had bleed-off's in it. I will try to do a little research and see if I can find the man that made it. Maybe he could be enlisted to help. It was a very simple system though and that is always good......especially if you plan on taking any dangerous game.
Mike
No greater love can a man have than this, that he give his life for a friend.