Max15 Series Technical Specifications

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Brushless DC motors and digital electronic speed controls offer a no maintenance (no brushes), high efficiency, light weight and compact power source for model aircraft, boats and cars.

With 25 cells and 1200 available Watts, you can easily fly .60 (and larger) size models. Check out our Design Guide. You might also want to check out some of the available gear boxes.

MOTOR TECHNICAL DATA

Motor Parameters	(Units)	Model MaxN32-13Y	Model MaxN32-13D
Torque Constant	(Oz.In./Amp)	0.946	0.548
Voltage Constant	(rpm/Volt)	1420	2500
Motor Constant	(Oz.In./Sqrt(Watts))	4.12	3.96
Rated Power*	(Watts)	> 1200*	> 1200*
Line-Line Resistance	(Ohms)	0.058	0.022
Max. Current	(Amps)	50	70
Idle current Io - (7 cells)	(Amps)	0.8	2.5
Max. Operating Speed	(rpm) (cells)	50,000 (28)	50,000 (18)
Cogging Torque	(Oz.In.)	<0.3	<0.3
Weight with connectors	(Oz.)	7.5	7.5

* At an ambient temperature of 75° F and with a minimum of 20 cfm forced air flow over the motor housing. (normal flying conditions) Depending on number of Sub-C NiCd/NiMH cells - varies from approx. 400 at 7 cells to more than 1200 at 25 cells

CONTROLLER TECHNICAL DATA

Controller Parameters	(Units)	Model Maxµ35D-21	Model Maxµ35C-25NB
DC Input Voltage	(Volts)	7.2 to 30 (7 to 21 Nicad cells)	7.2 to 35 (7 to 25 Nicad cells)
Output DC Current*	(Amps)	35 (65 for 45 Sec)	35 (65 for 45 Sec)
Equivalent on Resistance	(Ohms)	0.009	0.012
Weight with connectors	(Oz.)	3.0	3.0

* At an ambient temperature of 75° F and with a minimum of 20 cfm forced air flow over the controller cover. (normal air flow through the fuselage will suffice).

Controller Features:

Jumper selectable battery eliminator circuit (BEC) provides voltage to the RC radio system (up to a maximum 20 volt input - 14 cells peaked) (21 cell unit only). (Also see our note on fusing.)
Jumper selectable motor rotation direction, to accommodate direct drive or geared applications.
"Auto-Phase Advance" - No motor adjustment required.
Missing pulse detector, shuts down the motor if the radio signal is lost.
Automatic setup with built in microprocessor (no pots to adjust).
Proportional Brake with use of low end throttle trim.
Standard Powerpole^® battery and motor connectors, and Futaba receiver connector.
LED for Setup assistance and troubleshooting.
Optional remote LED for fuselage mounting.
Cool running Very-High-Rate 10 kHz. PWM -- runs cool at part throttle.

Check out the motor operating instructions for use with the Maxµ35D-21 controller or with the Maxµ35C-25NB controller

Controller physical layout

The Maxµ35C-25NB Controller has a built in arming switch instead of the battery connected input wire allowing direct battery connection with only the 2 Battery Input wires.

Remember: Brushless motors require a BRUSHLESS MOTOR CONTROLLER.

Motor MODEL MaxN32-13Y (WYE connected) for DIRECT/GEARED DRIVE (12 to 28 cells).

Motor MODEL MaxN32-13D (DELTA connected) for DIRECT/GEARED DRIVE (6 to 18 cells).

Digital speed Controller MODEL Maxµ35D-21 - 7 to 21 cells (with BEC).

Digital speed Controller MODEL Maxµ35C-25NB - 7 to 25 cells (no BEC).

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