ORIGINAL: Lamoilleriver
ORIGINAL: scale only 4 me
ORIGINAL: Lamoilleriver
Vast difference in performance when used strickly on water, have a OS .46FX in mine and felt it was pretty slow when using it from land and with wheels, wheels removed and less drag I'm happy with its flying. Think the OS .52 would be OK when strickly used from the water.
I'm guessing you fly from Grass
I'm going to agree with MinnFlyer,, a 52 is going to be marginal,, All things considered, weight, small wing area, higher wing-loading,, you'll want more power than a flat bottom airfoil type plane like a Cub normally would need... I'd go with a 65-70 range engine myself
good luck
In 30 years of RC'ing, never flown from a paved surface, closest I get is a frozen lake. Paved runways and taxiways is only for the guy's in the model magazines.


Run an OS.52 in a Great Planes Cherokee 40, flies well, certainly no speed demon, would think it would run well in the Seamaster.
Thanks Lamo, That's what I was hoping. I have a Saito 56 in my GP Cherokee and at first flew pretty sluggish but after the proper prop flews great. I'm going to check the weight of that thing compared to the Seamaster if close I'll have to try the 52. If it doesn't work well I'll change it. I only have to change the mount to accept the bigger 70 if it's needed. Merry Christmas all!
Jim