Message originally posted by hector46 on 2-Sep-09 at 07:38 PM:

Set up a thrust test today, so when my pal arrived we connected the Vanguard to the back of my car via a spring balance. Because there is no such thing as a windless day up here we tested the craft one way then turned it through 180 degrees and repeated. I now have the huge figure of 96lbs of thrust. This is now my control figure so anything I do from now on will be assessed by re measuring the thrust.
I have prop speed/pitch changes to make and new cylinder heads to fit. I will also alter the ignition timing to suit the new heads..........we'll see how things go !!!!!