Hi,

Does anybody know how many aircrafts are flying with a 13B rotary
engine?

I know the list of rotary builders but I only count 11.

Thanks!

Kevin van der Beek

I don't really know. I keep hearing about another one about
once a month I did not know about. My guess is about 100 Mazda based world wide.
Some start flying and some stop flying.

That does not count of course the  over 700  Alexander-Schleicher
50 HP one rotor motor glider engines sold by Austro Engines.
http://www.austroengine.at/cms/front_content.php?idart=37

Nor does it count UAV rotary engines manufactured by several companies.

We have about 1000 people on this list although I have not counted recently.
Many flying are not on this list.

Paul Lamar