This was a test to see how much thrust we would have to deal with when the board was on the water. Farrel, Tabs and Adam are holding the trailer on a slight incline to get a good idea of this.
I have set the M701's idle throttle position to the absolute minimum to keep the start up thrust as low as possible, this is also helped by the absence of the propelling nozzle.
Thanks to George for the most excellent filming of the test.
https://www.jetpower.co.uk/superjumbo...