Getting one of these..is an OS 1.20 Surpass II too much for it? I'm thinking it'll stick out of the cowel pretty bad... but would love your opinions....

Thanks,
Deck

It calls for up to a .91 FS... What is the size difference in the 91 and the 120? Just compare them...

O.S. 120
Weight: 920g (32.5oz
Length: 102mm (4.09") from backplate to the front of the drive washer
Width: 47mm (1.85") width of engine neglecting the mounting flanges
58mm (2.28") distance between the mounting hole centersh
Height: 139.5mm (5.49")
Suggested Prop(s): 14X9, 14X10, 14X11, 15X8, 15X9, 15X10, 16X6

O.S. 91
Weight: w/o muffler - 22.2 oz (630g) with muffler - 23.9 oz (678g)
Length: 91.5mm (3.60") from backplate to front of drive washer.
Width: 42.6mm (1.68") width of engine neglecting the mounting flanges
52mm (2.05") distance between the centers of the mounting holes
Height: 123mm (4.88")
Suggested Prop(s): Stunt planes: 11X10, 11X11, 12X9.5, 12X10, 12X11
Scale models: 13.5X8, 14X7, 15X6, 16X6, (12X8 & 12.5X7-3 blade)

Vo-

The 120 seems like way more power than you need and a lot more weight than you want. I am finishing a GP .60 Cub. It was my first kit to build and went together real well. I am installing a Saito .91. Do you already have the 120? If so, I would go to a slightly larger kit, like a Sig 1/4 scale. If not, I would get either the OS or Saito .91. There is no real reason to overpower a Cub.

It will fly very scale like with a 30 size 4 stroke

Thanks for the replies.. I do have the 1.20 and a .91 OS Surpasses... I was going to put the .91 in my Adrian Page GeeBee R2.. but maybe I'll have to put my Fox Eagle .74 in there instead and find something else for the 1.20


Thanks again!
Deck