I'm filling out registration papers for the FAA, and I have a question
 for all of you already flying.  The "Affidavit of Ownership . . ."
 asks for the "Type of Engine Installed (reciprocating, turbopropeller,
 etc)".  What have you guys been putting in this field?

 Best Regards,

 Steve Thomas

How 'bout BADASS Rotary Engine.

Rick

This problem has come up before.
When I get a chance I'll search the messages for what other people are
doing.

Paul Lamar

I am reasonably sure you enter "reciprocating".  For powerplant
certification there are but 2 categories, recip and turbine.
I think there was a notice to the effect that rotaries were
considered reciprocating - the logic of rules!

Stephen Roth