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« on: May 03, 2013, 12:22:02 PM »
Priyum
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WingsForLife

Hello,

I made a homemade foamcore plane which specs are as follows -

Esc - Hobbywing 20AMP
Motor - Emax CF2812 1534kv
Prop - 8*4 (trimmed down to 7*4 due to small esc)
Battery - 1850mah 11.1v

According to the datasheet the emax cf2812 can life upto 580gms with a 7*4 prop and my plane is only 410 grams but it doesnt seem to lift,
what could be the problem,it is a tractor plane.

Thank you
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« Reply #1 on: May 03, 2013, 12:51:49 PM »
theleabres
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post a photo
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« Reply #2 on: May 03, 2013, 01:00:53 PM »
Priyum
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It looks ugly i know but here are the pictures.
Screen_20130503_125723.jpg
Re: Homemade Plane doesnt lift
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« Reply #3 on: May 03, 2013, 01:05:44 PM »
Sahevaan
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Planes like these, with flat wings, don't produce lift. The usually fly on the thrust of the motor.
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« Reply #4 on: May 03, 2013, 01:09:06 PM »
VC
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L'enfant Terrible du RCIndia
1. Have you received the prop saver from Mr. V.K. Singh?

2. What Prop Adaptor are you using here? Is it a snug fit or is there a prop slippage?
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« Reply #5 on: May 03, 2013, 01:11:02 PM »
Priyum
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WingsForLife
I just recieved the adapter\saver thank you for it,the one here is just a diy so doesnt give much needed thrust,could you pm me how to set the new saver on?
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« Reply #6 on: May 03, 2013, 01:15:25 PM »
theleabres
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Did you hand launch or did you try rolling take off? What makes you say there's no thrust or lift?
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« Reply #7 on: May 03, 2013, 01:17:01 PM »
Priyum
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I tried to roll launch it with wheels ,it runs like a cheetah but doesnt lift
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« Reply #8 on: May 03, 2013, 03:09:07 PM »
santhosh-r
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It cannot lift on its own..you have to give a little up elevator since the wing is not airfoil..-hope you are aware of that.
Try hand launching it ... Thumbs Up
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« Reply #9 on: May 03, 2013, 03:50:07 PM »
arun.sreelakam
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Fly High
Make sure there are no vibrations in the motor while throttling up...   motor is fixed firmly
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