I've got or have had Tower .75 engines on all of the following planes:

CMP 3D Giles
http://www.raidentech.com/3dgi20240nig.html

PowerLine Edge 540
http://www.jaghobbies.com/rc_cars/edge_46.htm

World Models Ultimate--NOT a 3D plane
http://www.airborne-models.com/html/...p?ProductID=84

Lanier Razor
http://www2.towerhobbies.com/cgi-bin...?&I=LXFLB8&P=0

Pheonix Funstar
http://www2.towerhobbies.com/cgi-bin...?&I=LXEDP0&P=0

SeaGull Harrier
http://www.chiefaircraft.com/cgi-bin...Harrier46.html

My favorite is the CMP Giles. The Powerline Edge is under construction. I've got high hopes for the PL Edge. The Harrier was pretty good. The rest of them stink for 3D.