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Old Sep 11, 2011, 05:42 AM
Wizard
Magickid's Avatar
Australia, QLD, Brisbane
Joined Jul 2011
136 Posts
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Which motor 5g or 10g :confused:

Guys help me choose, i need a motor for my foamie http://www.rcgroups.com/forums/showt...4#post18666120
im going to use a 370mah 2s lipo, 3 3.7g servos, a 6a ESC and an aproximately 5-7g reciever. which motor should i use? the Hobbyking 5g or 10g?
this is the 5g - http://www.hobbyking.com/hobbyking/s...er_2000kv.html
this is the 10g - http://www.hobbyking.com/hobbyking/s...nner_10g_.html

i dont want imense speed or anything just something to fly around my yard. But i do want to put this motor into a Bipe later on.

thanks
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Old Sep 11, 2011, 07:49 AM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
1,940 Posts
According to the size and weight of the equipment you have you'll be better off with the 10g motor. What's the wingspan of your plane?
TODD
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Old Sep 11, 2011, 03:01 PM
Multi discipline RC'er
MrHmmm's Avatar
Netherlands
Joined Aug 2005
170 Posts
I second that opinion! (maybe even 15g)
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Old Sep 11, 2011, 07:25 PM
Pilot, Co-pilot, Navagator
nemoskull's Avatar
United States, AZ, Yuma
Joined Sep 2009
2,749 Posts
one thing to keep in mind is the AUW and the thrust to weight ratio. 50% thrust to weight will theroeticly fly, but you will spend all your time at WOT. a plane that has close to 1:1 thrust ratio can cruise at half throttle.

so keep this in mind when choosing a power plant.
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Old Sep 11, 2011, 07:51 PM
Wizard
Magickid's Avatar
Australia, QLD, Brisbane
Joined Jul 2011
136 Posts
60cm wingspan
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Old Sep 16, 2011, 02:52 AM
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meshyx's Avatar
Norway
Joined Feb 2010
602 Posts
With a 60 cm wingspan, I would definitely go with the 10g motor. The 5g motor would look ridiculous, and your plane can certainly carry the extra 5 grams. I would consider getting a 15 to 20 gram motor as well, since they are so cheap.
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Old Sep 16, 2011, 04:08 AM
Wizard
Magickid's Avatar
Australia, QLD, Brisbane
Joined Jul 2011
136 Posts
ok thanks everyone. also the plane im building i will later make more of to sell!

http://www.ultimaterc.com/forums/sho...78#post1138578

sorry for the link on another site
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