Originally Posted by David Gladwin

I loaned both my X45 and 120 to Colin Straus for RCJI review. The 120 review was in June/July RCJI and Colin’s figures have all been very accurate.
My flight tests on the 120 show it to be conservative on fuel burn. It is a top class engine in all respects, power , size, weight, fuel economy
I have the latest 90 on order, expected in Jan, and that, too, will be loaned to Colin for tests and fuel figures will be in that review.

The 90 will be flight tested on my Paritech DG 303 .