The highest performing quads have the best power to weight ratios. We could have chosen motors for the qq190RTF with a higher thrust output to go on this quad, but this wouldn’t have been a good choice because the motors on the QQ190 only draw 24A at full thrust with HQ 5x4x3 props. Power distribution board Blusky with XT60 (10g) 100% 11.96 9.08 109 8088 637 87/31 If you still have questions, please post them at so that we can help you choose the best motor for your next multi-rotor build. Marty, did you ever get an answer for your specs? 4S (16.4V) Freestyle acro flyer? So when selecting your motor, you should try to find a motor with a high power-to-weight ratio. There is no lifting of any parts, and/or quick acceleration or other loads to be considered. Generally speaking, from 180 mm to 250 mm is most popular frames, more bigger one is from 280 mm to 800 mm even more. The ZMR 250, back when it came out, was a class called “miniquad” - with the larger 450 size crafts being just “quadcopters” Frame Size numbers, by the way, mean how much diagonal distance there is from one motor to the other. If you are doing more straight line racing, a heavier motor might be better, however, if you are doing a lot of acrobatics & aerial stunts, go for a lighter motor. The most significant indicator of torque is stator size, so in some ways this factor is a spectrum between response times and motor weight. RI Series Frameless Inrunning Torque Motor. Many thanks, you have made my life easy. why choose a taller stator over a wider stator for big props? The result is a whopping 9:1 power to weight ratio. Great article! I found myself flying only the bottom 1/3rd of the stick almost exclusively, so I added some negative curve. 50% 16.32 2.83 46 6271 297 72/22 Motor 2212 1400kv (192g) 75% 12.16 5.26 64 6339 502 75/24 Comment: OK for continuous use, Motor: DJI E300 (2212/920Kv) – Page 4 of 4, Prop: DJI 9443 Self Locking prop (plastic blades) 0505 (1) 0603 (3) 0605 (1) 0605 (2) 0703 (4) 0802 (8) 0807 (1) 0905 (1) A motor will become a “battery eater” as you call it if it runs outside of it’s efficiency range. Many thanks. So why not use a motor that is cheaper, easier to produce, and easier to find replacement parts (CW motor) on all of you quads, instead of using CCW motors which complicate things? I made a mistake though in the motor selection. Manned Aircraft. You are right, it seems contradictory, but this means that is is best to use a light-weight motor that also has high torque. Especially today, when we have a ton of available motor options. I agree with Kaity, 23XX is as small as I think you should go. We here at QQ have found the following to be a good starting guide for sizing stators to propeller size: Selecting the right motor comes down to weight, power, efficiency and torque and the importance of each of these are ultimately determined by your flying style and what you are trying to accomplish with your multi-rotor build. TBS Graphene FPV Drone Battery 1500 mAh 4S 14.8V. 75% 12.19 4.16 51 6752 346 69/21 A good pnunomic to remember is Wept- the guys that didn’t choose the correct motor for their quad build wept because they cooked their batteries. Motors can also make up a big part of that, so keep that in mind as well. (471.2g). Throttle Volts Amps Watts RPM Thrust(g) Winding Temp (F/C) How we can select the component to make quadracopter . You have to find thrust tests to figure that out. The dimensions are 184×122×110 mm. I have a project that has similarities to operation of 2 identical but reverse rotation motors/propellers that are commonly used for drones. This is more than double the power needed for acrobatic flight and can make for a truly awesome flying experience. So ideally, you should be able to choose a motor that is efficient, doesn’t draw too many amps, isn’t too heavy, and has the power to get the job done. Comment: OK for continuous use, Prop: iFlight iCF 9047 Carbon fiber DJI Hub (DJI Style blade) In the end, you will want to make sure that you have enough thrust to fly well. It is a high-performance derivative of the Australian Ford Falcon.. Champion Co-brand. Throttle Volts Amps Watts RPM Thrust(g) Winding Temp (F/C) was my first build, learned to fly on this frame …, The QQ190 Tank V2 has been replaced by the
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