Hello again Paul,

Surely you are aware of these rotary doings?

http://www.sec-systems.com/rotary/rotary.htm

It looks like they are getting a small displacement rotary sorted out for
UL applications .

What is your opinion?

I'm coming up with these costing comparisons:

AXIRO XR-40Rotary Engine 40 Hp with redrive = $6200.

Rotax 503 DC 49 HP with redrive = $4500.

Regards,
Dino Dinaso


I would wait an see. It is one thing to build a few Wankel rotary
engines using unproven wear coatings and quite another to build them
in quantity with assured consistent quality. Also as far as I can tell
they only have 100 hours on the engine so far.  Until I receive
more details on the type of wear coatings  used I would recommend
caution. I also find it strange that they don't identify it as a
Wankel type rotary engine which it obviously is.