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Sep 14, 2006, 01:02 PM
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Las Vegas Nv, USA
Joined Oct 2005
3,106 Posts
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Help! 28 oz of thrust with 14 oz 3D airplane?
i just finished building a cermark sammy 3D and when finished is going to weigh about 14 to 15 oz's it is a 3D airplane so i wanted to know if 28 oz's of thrust would be enough for it??????
here is a link to the motor that i just ordered and willl post pics of the plane later today...... http://www.graysonhobby.com/catalog/...products_id=57 Thanks for looking |
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Sep 14, 2006, 01:30 PM
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Chattanooga, Tennessee, United States
Joined May 2003
26,310 Posts
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2:1 seems more than enough to me! I believe ~1.4:1 is said to be the minimum for hovering.
That said - I believe their estimate of 800g (28oz) is seriously optimistic. Our calculator suggests 665g/23.5oz for a 9x4.7 APC SF at 8421 rpm. http://www.gobrushless.com/testing/t...=Calculate+Now |
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Sep 14, 2006, 01:32 PM
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Las Vegas Nv, USA
Joined Oct 2005
3,106 Posts
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thanks for your help
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