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Old 10-29-2002 | 12:44 PM
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Powaw
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From: Lawson, MO,
Default which engine should I use?
I am building one of AK Models 3D Freedoms and I am trying to select a gas motor for the plane.

wingspan:67"
wingarea:1120"^2
OAL:64"
weight RTF: 9-10.5 lbs

They tested the airframe with a YS120NC and said that they had no performance issues and could hover no problem. Here are the motors that I am considering for this plane. They are all gassers with one end maybe a little small and the other too big. But what is too big really?

RCS 1.40 2lbs w/ign 3hp
MVVS 1.60 2.1lbs w/ign 3-3.8hp
RCS 1.80 3.15lbs w/ign 4hp
ZDZ 2.40 3.15lbs w/ign 4.8hp

They are all within $90 of each other also. I want the plane to have all the power it would ever need, but still be responsive to the controls.

Thanks,
LeRoy
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