Bladejunkie

I'm putting a OS Ft-300 on my well worn US 120 Lite and I'm kinda worried about ground clearance.Would a 18x12 MAS prop be enough prop for this combo?Anything over a 18" prop is pretty close to the ground.

Thanks for any advice Jim.

TFF

I dont know about ground clearance but I bet it is going to be nose heavy by a big margin. have you mocked it up?

Bladejunkie

TFF,it's already had a G-38 and CRRC40 on it.When I got the airframe I cut the firewall back about three inches,so I don't think it will be nose heavy.The FT-300 is lighter than the G-38,not much lighter/but still lighter.I think this engine will be easier on the airframe too!!!It's smooth as silk.

Thanks for the input Jim.

TFF

Your ahead of the game.

SrTelemaster150

If you want more ground clearance for a larger prop, put larger wheels/tires on the landing gear or modify the landing gear.

My Saito FA300TTDP turns a 22X8 Zinger @ 7100 RPM static. It would take about the same HP to turn an 18X12 @ 8100 RPM.

Oops I entered the wrong data. 8100 sounds OK to me. Th e18X12 should work OK.

Bladejunkie

Thanks guys,thats what I wanted to hear.Planes almost ready to go,just have to recover a few places on the fuse that were damaged when I lost a wheel in flight and ripped out the landing gear.

Later Jim

Cobra1

My Feedback: (42)

That sure is a lot of motor on a small aircraft - have fun!

Bladejunkie

What's that little old Cobra got in it?

Cobra1

My Feedback: (42)

Just enough. 351c

Bladejunkie

351c,thats what I had in my 69 Mustang,so I guess we both know about too much power right?

Later Jim