At Team Tango we have a builder who is planning to install a Delta
Hawk In a Tango 2. He has been waiting for several years and will
receive one of the first production engines when they begint to ship.
This year, again, they say this fall (and this time its for real). I
am not aware of any other diesels designed for airplanes that are
actually in play these days, but I haven't kept up on SMA, Thielert.
I have heard of financial problems at the companies. I would havae
financial problems trying to pay for one.