Hi, Randy, thank you. I did not know about the weight of Aero Tiger.
But the power more than a ST60 will be overkill for this small plane. Bill wrote in the article about 40 engine he has too much vibration.
I said The PA 40 has more power than a ST 60 , not the Aero Tiger.
The Aero Tiger is what Bill W runs in his small planes, like the Vulcan, and the Ares , The Aero Tiger is very very smooth engine,
The PA 40 is too large to put in a Vulcan, I only mentioned it because it is light and very powerful, It also does NOT vibrate much, it is one of the smoothest 40 out there, Billy W even talked about how smooth it ran with little vibration.
And Yes an Aero Tiger 36 is perfect for a Vulcan or Ares size plane. Hence the reason that Bill Werwage uses them in his small planes
Regards
Randy