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« on: October 05, 2011, 11:23:49 PM »
kushal9999
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City: navi mumbai
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I am working on a f-22 design.
My Brushless motor is recommended to use 10" propeller.
But my design forces me to use a 6x4 prop.
Also my plane looks heavy to me..........m really afraid to fly it, though it is not completed yet!!!!!!
Please guide!!!!
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HAve some problems to discuss!!!!!!!
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« Reply #1 on: October 06, 2011, 12:02:25 AM »
abhay
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Wrong Brothers
Whats the weight till now? whats the material of plane? which motor?

You can use the smaller props with larger pitch, for the motors which suggest larger props, as per my knowlege. But wait for expert's opinion.
This will however increase your flying speed.

If the motor belongs to Hobbyking, just read the reviews, you will get the specifications with smaller props as well.
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I can take off and fly well. Its landing which sucks Bang HeadBang Head
 

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« Reply #2 on: October 06, 2011, 12:04:29 AM »
SunLikeStar
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High spirits we have: gravity we flout.
You'll have to change you motor, get a high kv motor; preferably a 2200kv.
I hope this is not your first plane.
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« Reply #3 on: October 06, 2011, 12:11:11 AM »
arif08
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Kyosho world cup driver
Hi there... if u think ur aircraft is heavy than use the wing loading calculator..the link for wing loading calculator is @ http://adamone.rchomepage.com/design.htm#calculate

Hope this helps you and all the best for your test flight.

Cheers,
Arif
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RC Airplane / Helicopter pilot / World Cup driver
 

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« Reply #4 on: October 06, 2011, 02:21:13 AM »
kushal9999
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I am using Emax 1400Kv motor which produces max thrust of 1600gms.
i believe my plane wud reach max weight of 1kg. So wud it be problem if i use 6x4 prop....
and yes its my first plane!!!!!!!!
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« Reply #5 on: October 07, 2011, 09:45:36 AM »
SunLikeStar
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High spirits we have: gravity we flout.
A 1400Kv motor will produce ~300 gms thrust on a 6x4 prop.
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