I realize this is an OLD thread but am wondering what ever happened with these engines. I ask because I recently noticed this website (www.ac-aero.com/ax4050-cylinder-kits) after reading about it in the engine article of the latest Kitplanes magazine.
What a bummer. We are still using 1930s technology. These guys looked like they were on to something.
On the other hand, I can still work on older engines, but the latest stuff is beyond me. I won't touch a BMW or a Rotax. I don't even know how to change oil in a Rotax - just know there is a "gotcha" involved.
I realize this is an OLD thread but am wondering what ever happened with these engines. I ask because I recently noticed this website (www.ac-aero.com/ax4050-cylinder-kits) after reading about it in the engine article of the latest Kitplanes magazine.
Looked over this complete website from this link,last date they mention is in 2017, very interesting advanced technology if it's for real why no new dates on their website,only talking about what they are going to do in 2017,
the FL1500 inverted 4 - 120bhp to 200bhp weighing 67kgs , sent them an email see what comes back if anything.
So this looks like a fantasy engine dream,if it's for real I would think someone would have it on their airplane already.
Edit, says 67kgs x 2.2 = 147.2 pounds
120bhp to 200bhp that light and 200bhp on a PA12 would be a game changer