Twin 25cc singles in a 60 inch Systems Cat by Express Craft Boats. Built and driven by Dean Werges.

25cc High Torque Engine

Wally Duarte with a Quickdraw 25 engine in a  PPB Dragcat at SAW Trials, on Youtube

HT 25 on Youtube, AC Razor ripping

Accu-tech RC Hardware Hydro with HT on Youtube