14-01-2019, 10:16 PM
When we were into hovercraft my Dad used to say you can blow at 5 psi - which is all you need to hover.
5 psi through a straw will blow upwards enough to hit a crank web some distance away, so three should be fine.
Simon
5 psi through a straw will blow upwards enough to hit a crank web some distance away, so three should be fine.
Simon