First Class Member
- Jun 19, 2007
- Reaction score
How to test?...Trouble is, I can't tell if it has achieved this or anything at all. A cruise is not at full throttle, it may be that the plane needs a mm less throttle than before , if so I can't tell...
When I built my spats I flew four big square tracks at exactly 2600 and 2800 rpm, with and without spats.
I recorded average ground speed and indicated fuel burn. Not super scientific, but easy to do.