Motor for 1.5 kgs Quad
- Thread starter SSR
- Start date
matwelli
Member
Flycam 925's http://www.kkmulticopter.kr/index.h...pter&sc_selected=Motor&sn=flycam_925&id_no=45
800 gram thrust 10 by 4.5 prop on 3S
1300 gram thrust on 4S
http://multirotor.wordpress.com/2011/03/08/mat-earnt-its-supper-tonite-added-an/
work out what your required watts are, 1.5 kg will need 200 to 250 watts to hover, or 62 watts per motor, so you really want a motor that can handle 2-3 times that (120-180 watts)
Your next choice is kv, but thats not straight cut - two 900 kv motors on paper will respond diferently, depends on magnet count, winding size, stator diameter.........
but pretty much aim for 700 to 1000 kv, and adjust prop size to get the desired thrust
800 gram thrust 10 by 4.5 prop on 3S
1300 gram thrust on 4S
http://multirotor.wordpress.com/2011/03/08/mat-earnt-its-supper-tonite-added-an/
work out what your required watts are, 1.5 kg will need 200 to 250 watts to hover, or 62 watts per motor, so you really want a motor that can handle 2-3 times that (120-180 watts)
Your next choice is kv, but thats not straight cut - two 900 kv motors on paper will respond diferently, depends on magnet count, winding size, stator diameter.........
but pretty much aim for 700 to 1000 kv, and adjust prop size to get the desired thrust
Sebbie
Member
SSR have a look at these Emax Gt Motors from Robotbirds, they look just the thing 
Name KV Cells MM Recommended Prop size Max Thrust gram(g) Heli weight(g)-approx
GT2812/08 1180 2-3s 5 APC 10*5 9*4.5 10*4.7 344W 1400g 105g 600-1300
http://robotbirds.com/catalog/product_info.php?cPath=56_272_420&products_id=5452
Name KV Cells MM Recommended Prop size Max Thrust gram(g) Heli weight(g)-approx
GT2812/08 1180 2-3s 5 APC 10*5 9*4.5 10*4.7 344W 1400g 105g 600-1300
http://robotbirds.com/catalog/product_info.php?cPath=56_272_420&products_id=5452
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I'll second the Flycam motors, I have 8 of them on my X8 which weighs in at roughly 3.2 kgs RTF or a bit over 7 lbs in nonmetric measure.
Ken
Macsgrafs
Active Member
Sebbie put up the wrong ones Mat. I have bought 10 x Emax GT2820/07, 140g & 2.3kg thrust.
Ross
Kilby
Active Member
Hey Mat,
Would you recommend the RC Cams as a direct replacement for my RC Timer 750kv's that I'm running on my tricopter? I'm using the 25-30 HK SS ESC's. I feel a little underpowered at times and don't think these things things match up to well to each other, depending on when you bought them. The same motors from different orders will perform much differently and I would like to avoid that with my next motor set.
Would you recommend the RC Cams as a direct replacement for my RC Timer 750kv's that I'm running on my tricopter? I'm using the 25-30 HK SS ESC's. I feel a little underpowered at times and don't think these things things match up to well to each other, depending on when you bought them. The same motors from different orders will perform much differently and I would like to avoid that with my next motor set.