<div style="margin: 0in 0in 0pt"><span style="font-size: 9pt">IMHO...if you want a plane that is stupid crazy fast including vertical, then buy a plane that is designed to fly that way. There are a number of designs that will fly extremely fast with a 55AX designed for that power and speed.

My concern with putting an oversized engine in a plane not designed to fly as such is a risk most "shouldn't" be willing to take. Flutter is nasty and can cause a situation that you no longer have control of the plane. If this happens near people...dangerous and life threatening things happen as a result...Drag is the equalizer...If you exceed the threshold, she will break up Scotty!!!!

I'm ok with putting a 55AX in a 40 size sport plane if you beef it up a bit and manage the throttle. I would say this is like putting a 289 in a Pinto...Fun, quick, and a lot of show...

Putting a 60 or larger in a 40 size plane is like putting a 428 CJ in a Pinto...Something is going to break at the wrong time...You can't beef it up enough for the power...Drag and Power collide and bad things happen. Now put that formula in the air and a disaster is around the corner.

My .02

Larry Diamond</span></div>