armedzagi, yeah, the prop is a bit oversized...just a little

(its not too bad though, some of the rubber powered free flight planes have props almost as large as the entire wing itself!).
ched, thats good news, thanks. if i can remember which box i put my multimeter, i'll check the resistence of the coil. my guess, its anywhere between 10 and 100ohms - when the NiMH pack starts to lose power, you can tell the actuator is sucking up a lot of juice.
nick