Extra 300 - 300HP Lycoming AEIO 540 - Flown them, they wont quite really hover. Combo of: Plane too heavy, prop too small, not enough
HP.
The Sukhoi, (350-450HP) with its geared radial engine and huge 260cm
MT prop hovers, especially with the 450
HP Vendenyev M-14R engine. The geared engine allows the prop to turn slower, therefore you can have a larger diameter prop without the tips going supersonic.
Look a Yurgis hover his:
http://www.mikeskaggs.com/Aerobatics/04wa10ap_hover_hi.mpeg
The American Built Zivko Edge 540 (Lycoming bored out to 340hp or so) is VERY light and can hover too.
Mike
[Edited 2004-11-09 21:21:07]