First Protos Mini kit. Building photos

[brtmac]

What's the diameter of the motor shaft? Is it a normal 3.17mm? In all of the pictures it looks larger.

[icrberg]

Originally Posted by brtmac

What's the diameter of the motor shaft? Is it a normal 3.17mm? In all of the pictures it looks larger.

Specifications

Stator Diameter..........22.0 mm (0.87 in)
Stator Thickness..........21.0 mm (0.83 in)
No. of Stator Arms..........9
Magnet Poles..........6
Motor Wind..........12 Turn Delta
Motor Wire..........12-Strand 0.21mm
Motor Kv..........2580 RPM / Volt
No-Load Current (Io)..........1.50 Amps @ 10 volts
Motor Resistance (Rm)..........0.038 Ohms
Max Continuous Current..........38 Amps
Max Continuous Power.......... 530 Watts
Weight..........81 Grams (2.86oz)
Outside Diameter.......... 27.9 mm (1.098 in)
Shaft Diameter..........3.17 mm (0.125 in)
Body Length..........38.3 mm (1.508 in)
Overall Shaft Length..........58.7 mm (2.311 in)
Max Lipo Cell..........4s
Motor Timing..........5deg
Drive Frequency..........8kHz

[brtmac]

Cool! Thanks for the info. I have a 2500Kv motor on my 450 Pro for running 4s that I could use on the Mini (who would want to fly a Pro if they have a Mini?). On the other hand, for the cost difference on the bare bones v. motor+esc combo you get a really good deal on a Scorpion motor and YGE ESC, so it probably makes the most sense to just go with the combo and keep my Pro flight ready until crash parts become readily available for the Mini.

[frypan]

Originally Posted by JustPlaneChris

Won't work! The Mini Protos has a 120 tooth main gear, and the smallest pinion available is 14T. With your 2010 kv motor on 6s, at 100% throttle your headspeed would be over 5000 rpm!

Oh shit

[Czech-Dave]

Originally Posted by JustPlaneChris

Won't work! The Mini Protos has a 120 tooth main gear, and the smallest pinion available is 14T. With your 2010 kv motor on 6s, at 100% throttle your headspeed would be over 5000 rpm!

Not quite! European ESC´s (Kontronik, YGE) work best at 55-75% throttle opening. The reason for this is that they have enough room for governing and thus delivering a constant head-speed from beginning to the end of a flight.......
David

[JustPlaneChris]

True, but I still don't think it'd be a good idea. That's way more overhead than you would possibly want. Way more than I ever needed with my 425mm Protos / Jazz combo!