Model: TowerPro 3520-7
Size: 45.5diam x 72mm
Idle Current: 1.6A
Suggested Battery Config: 4-5Lipo
Max Eff Current: 45A
Max current: 56A
Max Power: 850W
Suggested prop: 13*8, 14*7 APC-E (thin electric)
Suggested BESC: 60A
Suggested Battery Range: 2200mah 4S1P ~ 4000 5S1P
Have this motor in my 6 pound 40 size p51 mustang
5 cello 4900 rhino li poly battery ,100amp speed controller
mustang has plenty of powerI guess I am happy with the motor but it does not perform as per the other reviews. 14*7 APC style, 4 cell 3800 pack (I have tried 2) and it only draws about 19 amps. Motor does not sound as if it is working real hard so I am going to try more prop to make it work harder and draw more current (get more thrust). Looking at the KV of the motor I am not surprised as I have a higher KV motor which is smaller and it spins the same prop at 40 amps (much faster). Lower KV means slower rotation and therefore less power is needed.I am building electric conversion of SIG Somethin' Extra and I intend to install this motor to it. I measured 2.7kg static thrust with 14x7E APC propeller (4100mAh Hextronic 4S LiPo). The measured power was about 630W (about 43A). Needless to say that I am happy with the motor. :)Just tested this motor on a Super Sportster 40 with a HXT60 BESC (15 timing) and <b>5 LiPo</b> pack (5400mah 30C). With a Graupner 10x7 3-blade prop, current climbs to 55A on the ground(!) this is due to the LiPo's having a very small internal resistance and of course the engine running above its normal rating of 4 LiPo's.
Plane is way overpowered with this setup. However, the engine stays cool which is surprising, even whith the typical 'open cowling' on this glow-powered plane. Had to beef-up the motor mount to avoid vibrations though. Best would be a 'frontside' installation.A quick note to show you the result of the installation of a TP3520x7 motor with a Polymax 4S 3000mah, HXTBSC60 and a Graupner 3-blade 11x7 prop.
Only 29Amps max current with this setting. (Accurate Motocalc specs for this motor: 650rpm/V 1.2A NoLoad 0.033 Ohm).
At 3kg, the plane has power to spare.
Nice motor. Tooling is as nice as any other brand. Runs smooth and is well balanced. This is a 4-5 cell motor. It's big and strong and likes voltages above 11.7V (3S1P). Get more in soon!Fitted my 1.5 x pushycat this motor is the best I have used so far,it is giving 2.73 kg thrust @ 7400 rpm drawing 43 amps 770 w.with 14x7 prop on polyquest 5s1p 4000mah have not checked speed with radar yet will wait for 31x10 prop to compare Iam impressed ,having tried 5 motors so far
some being a much more expensive and not as powerfull yet running hotterReplaced a Four stroke .50 with 3520-7 works perfect in my Black Horse Diablo 3D. More power and more reliable. I use APC 13x8, TURNIGY 60amp Esc and HXT D9 G2 3200mAh 4S 15-25C.
40A, 570W 15 Minutes of flight.
Super Motor. Verwende diesen mit 4S Lipo in einer Fokker DII mit einer 13x6,5 APC-E. Damit sehr gut motorisiert.I fitted this motor in a 64" span Hyperion Super Chipmunk 70E weighing 2.9Kg. Flying the Chippie for 8 min of sport aerobatics: highest power was 1.067 KW. Maximum current draw was 58A. Average 13.6A. Exceeded 52A draw 18 times. Usual peak current draw is around 40A. After landing, the motor was cool to touch. See my blog here:
If you type Tower Pro 3520-07T in to your search engine, you should get a very detailed review of this motor from the Ampeer Newsletter.