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what size prop for gee bee electric

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Old 01-05-2005, 02:22 PM
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starduster too
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Default what size prop for gee bee electric

I'm converting a Great Planes Gee Bee ARF to electric with a Hacker C50 10L Acro, Hacker Master 70 ESC and a Thunder Power TP8000 5S4P li-poly pac .This is my first electric and I'm not quite sure how to choose the right PROP.
Old 01-05-2005, 02:32 PM
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starduster too
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Default RE: what size prop for gee bee electric

Sorry I forgot to mention the motor has a 6.7 to 1 gear reduction.
Thank for any help you can give me.
Old 01-07-2005, 10:01 AM
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luc-RCU
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Default RE: what size prop for gee bee electric

well, I converted the same plane with an axi 4130/16 and used a 15*8 apc on a 7S2P setup.
I am afraid on 5S you will not have enough amps as this plane is quite heavy (close to 12 Lbs)
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Old 01-07-2005, 11:24 AM
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Default RE: what size prop for gee bee electric

luc-RCU
Thanks for the replie. How do you like your electric Gee Bee. Does it perform any where near the O.S.120 plane, I have the same plane with theO.S.120 and I love it. I'm building the electric for one of the club members.
Thanks, Tom Murray
Old 01-08-2005, 11:39 AM
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luc-RCU
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Default RE: what size prop for gee bee electric

unfortunately, it is down...RIP
It was too much nose heavy (cells where inside the cowl) and I just performed 3 flights before she went into a spin...
Power was ok, in flight, but I used flaperons for take off, which helped a lot.
I found the lg axles were ez to move right or left too.
I will settle down now to an easier plane: the at-6 of hangar 9 with only 6S (it is lighter) and a P51 miss america from the same manufacturer.
Old 01-08-2005, 12:59 PM
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Default RE: what size prop for gee bee electric

Luc-DCU,
Sorry you lost that beautiful GEE BEE. Your choices for a new project sound great! I haven't got the electric GEE BEE flying yet but i'll take your experiance into careful consideration.

Thanks again
Tom Murray

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