Turnigy Aerodrive SK3 - 3542-1000kv Brushless Outrunner Motor
Turnigy SK3 Motors are the next leap forward in motor quality and design. We instructed the engineers to source the best quality magnets, bearings and materials available to them and develop a motor that would not only rival, but surpass the quality of many leading motor manufactures on the market today. The result is an efficient, high caliber motor using quality double shielded bearings, sintered Neodymium magnets and a string wound stator ensuring an accurate and consistent winding each and every time. The Turnigy SK3 motors are suited to modelers who are seeking a quality brushless motor without compromise. Specs.Turns: 12TVoltage: 3~4S LipolyRPM/V: 1000kvInternal resistance: 0.031 OhmMax Loading: 45AMax Power: 670WShaft Dia: 5.0mmBolt holes: 25mmBolt thread: M3Weight: 141gMotor Plug: 3.5mm Bullet Connector
I've been looking at folding props but they don't work particularly well in pusher arrangements. Its the way they angle inwards positioning the props closer to the frame. With the FX-61 I cut back the foam a bit at the back to allow more of a gap between the prop and the frame, it makes it slightly less noisy. There are a few folding prop makers Aeronaut are one of the better ones. Folding props are difficult to balance so its better to get good quality balanced ones. Like wise just search for a Folding Prop Spinner they come in a range of prices. In a pusher arrangement you should use a Folding Prop stop. Typically they are made of fibre glass or delrin. They prevent the props from folding folding to far forward so hitting the frame or back and crossing over. You can also attach small cable ties around the prop attachments on the spinner. I don't use a folding prop on my FX-61 I did think about it but it works OK without one even though I'm using a large prop.
Looking at the picture it has a collar with grub screw in the pack. Assuming this means the shaft can be reversed on these motors? This motor looks to have just the specs I need but I hate using bolt on adaptors!
Use a 4250 sk3 80mm replacement shaft instead of the stock shaft to reverse this motor. It will allow you to put prop on either side of the motor without the accessory pack. Also you should get the spare bearings and the scorpion bearing oil as well.
I use this motor on a Multiplex Funcup, this motor realy rocks, starts on 1 meter and goes vertical accelerating. I normaly use 3 cell 3600 batt, and it tows easy gliders up to 2,6 meter, and I also have towed a 3,2 meter and 2,7 kg F3b glider. I use a 4 blade 6x10 prop from hobbyking P 51. or 13 x 4 prop. Readings. 13x4 prop 3 cell 30 Amp 349 watt 4 cell 48 amp 766 watt (And the nose on funcup go into wild flutter)
12x6 4 cell 53 Amp 864 watt
12x6 4 blade (P51 prop) 64 Amp 989 Watt (And no flutter in fuselage) But the motor wont last long with full power. On this video i use 3 cell www.link
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moter not only looks nice but performs well...have it ina large cesna foomie on 4 cells 13-4 prop and it goes great... will experiment differant props and batts...electric is great
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i have this on a Yak 55m 49inch ,weight 1463gr ESC, trust 55A,battery turnigy 3s 3600mah 30-40C Prop APC 12x6e ,440.7W ,thrust static 1520gr(sport ok,not much 3D ) APC 13x6.6,537W,thrust 1740gr (sport perfect,3D 100pcnt,unlimited vertical. very low noise compare to G series