Originally Posted by
GRVW
This model has been around for seven or eight years now, so there's plenty of collective experience with it. Reading through some of the threads on RCU it seems a wide range of engine sizes have been used, from 7kg Wren Super Sports and P-70's at one end, up to K-140's at the other.
This says a lot about the versatility of the airframe, but here's my question: I have a VT80 and a P120se.
Which is the more appropriate engine to use?
In an early post, Ali Machinchy said the P80se was a great combo, and that many of the jet's virtues come from being kept light. But other posters have installed bigger engines, arguing better performance off grass and better verticals. But bigger means heavier means higher stall/safe landing speed, which is a minus.
Not quite sure which way to go given what I've got: a VT80 or a P120. The strips I use will mostly be rough-ish grass, 100m long. I don't really need unlimited vertical, but nice fairly large loops would be good to achieve. Any advice?
i'm building one now.. go with the 120. the perfect engine. i'm putting a RX140 in mine WB_1