MP7.5 - The MW 54 is fine for the ROO 2.
My ROO 2 is AUW 14 lb. wet, and you will not be disappointed in performance. I fly mine with TJT-2000 power at 14.5 lb thrust 150,000rpm... I would estimate top speed to be approx 140-150 mph. The great thing about the smaller MW 54 turbines is fuel economy, Iam getting easy 10 min + flights from 2 lt Kero.

Also of interest I recently saw a 24 lb scratch built scale Jaguar fly very well on a 12 lb thrust MW54. It needed a bit of runway to get up but once on step was flying very well... I would suggest most airframes with an AUW of up to 20 lb will perform very well with MW 54 turbines, as long as you are flying off a sealed strip of coarse and are not out to break any speed records.

Theres more ROO 2 pics in my gallery...


Cheers-