O.K. It works!!!!!! YEEEHAAA!!!!
Final product is:
Hyper 12 (worked) nitro motor.
42mm plastic prop.
Water cooled head.
Carson shaft and rudder.
Home made aluminium turn fin.
The jet intake and exhaust have been opened to help cooling.
With rear wing installed the whole thing now weighs about 2.4kgs. I still have to hand launch the sucker and must keep it flat out or the motor stalls so to fix that will reinstall the clutch bell from the car and make up a coupling for the drive. Then it will sit and idle then launch on throttle (hopefully)! Next outing I will get a vid of it and post it. Speed is about 30m.p.h. Fast enough for me anyway. I think if it went much faster for too long it would self destruct anyway!!!![:@][:@][:@]