ORIGINAL: fytrjok
I have an old Saito 150fs in mine. At my altitude (5380) the 109 could use more thump (a 180fs would probably be perfect) but flys just fine. I'd think you'd be in a simlar situation at sea level with a 120...I guess it boils down to how fast i fast enough!
I'm at around 1300 ft. here in the Ozarks so maybe a 1.40 or 1.60? Is a 1.80 too large for the cowl? I'm an electric guy so I don't want to have to cut huge holes in the cowl if I can avoid it.
<br type="_moz" />