RE: Is an os .46 fx suitable for a sig LT-40?
I not sure but I beleive the LT-40 & the NexStar are similar in size & weight. I have the stock OS 46FXI engine that came with the NexStar & flies it effortlessy at half throttle. Very easy to tune, extremely reliable & never skips a bit. As a new recently soloed Rc pilot, these things are important to me, never a deadstick yet. And when I am feeling a little bold & cob the throttle, it really gets up & goes.