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Old Feb 04, 2015, 10:18 AM
tommy tough nuts
fepsphan's Avatar
Joined Jul 2013
119 Posts
weight to thrust ratio

What's a good weight to thrust ratio? I am building an a-10 warthog and am kinda new at edfs. The combined thrust with a 4s is 2430 grams
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Old Feb 04, 2015, 10:53 AM
Do it Right, the first time!
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United States, MN, Hermantown
Joined Dec 2008
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One to one is always good.. but other than saying your building an A-10, your letting us guess on exactly what you want/need.

What size fans?
How big is the plane going to be?
What airfoil?
Hand launch, or fly off of paved surface or grass?
With gear or no gear?

These help to determine what you will need.
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Old Feb 04, 2015, 11:31 AM
tommy tough nuts
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Joined Jul 2013
119 Posts
I'm sorry kinda new at forums and thanks
70 mm 3000kv 6 blade fans, with a 4s battery, says they generate 1230 grams thrust apiece,
Plane is going to be 48 inch fuse and A 53 inch wingspan
Airfoil is generic I guess, any suggestions?
Fly off a packed dirt airfield I belong to
And with gear.
I haven't started the wings yet so I didn't really come up with a proper airfoil.
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Old Feb 04, 2015, 11:47 AM
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Joined Nov 2000
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Only trustworthy thrust numbers are the ones one generates in one's own testings.
Step # One.. imo.
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