Originally posted by flap
The sig only needs a 52 4CYL while the GP from my experience needs a healthy 91 4 cyl
Wrong, the Sig requires .90-1.60 4 stroke.
You are the wrong one here, I am talking about the new 1:5 scale, it has a finished weight of 6-7lb's and is superier to any kit made by GB or GP. By the way any engine you can power a GP60 size cub which is a lead sled will fly a sig 1:4 scale cub even better. The GB and GP cub's don't even look like cubs not to mention fly like them. You are a senior member you should understand wingloadings and how they afect flying habits.