[Batfish]

Here's a copy and paste from ROAR's actual brushless motor rules:

Modified Electric Classes include brushless motors using the following rules:
Modified Brushless ROAR Rules
8.7.5.0 GENERAL DEFINITION OF A BRUSHLESS MOTOR
8.7.5.1 Sensored or sensorless motors are allowed.
8.7.5.2 The motor has to be rebuildable. Ball bearings are allowed.
8.7.5.3 If the motor is sensored:
It must use a six position JST ZH connector model number ZHR-6 or equivalent
connector with 6 JST part number SZH-002T-PO.5 26-28 awg contacts or equivalent.
Wire sequence must be as follows:
Pin #1- Black wire-ground potential
Pin #2- Orange wire-phase C
Pin #3- White wire-phase B
Pin #4- Green wire-phase A
Pin #5- Blue wire-temp control, 10 k Thermistor referenced to ground potential
Pin #6- Red wire-+ 5.0 volts =/- 10%
For clarification pin #1 is on the left hand side of the above connector with the wires
exiting the top of the connector and the plastic tangs that hold the contacts in the
housing are facing forward. See drawing below.
Compatible speed control must use the six position JST header part number X-6B-ZRSMX-
TK (where the X denotes the style of the header), or equivalent.
The power connector has to be clearly marked A, B, C. on both speed control and motor.
A for phase A
B for phase B
C for phase C
42
8.7.5.4 “ 05” size dimensions.
Can:
Overall maximum diameter is 36.02mm measured at whatever point yields the
maximum dimension, excluding solder tabs or lead wires. Overall minimum diameter is
34.00mm measured at whatever point yields the minimum dimension, excluding solder
tabs or lead wires. Maximum length is 53.00mm measured from the mounting face of the
motor to the furthest most point of the end bell, not including solder tabs, lead wires or
original manufacturer’s logo or name. Minimum length is 50.00mm measured from the
mounting face of the motor to the furthest most point of the end bell, not including solder
tabs, lead wires or original manufacturer’s logo or name. Motor mounting holes must be on
1.00- inch (25.40mm) centers.
Stack/Stator:
Stack minimum length 19.30mm, maximum 21.00mm. Stack inside diameter minimum
12.50mm, maximum 16.00mm. If a stack is used then it must be continuous. The
laminations have to be one after the other without anything in between. The thickness of
the stack plates is 0.35 +/- 0.05mm. All laminations must be of the same material.
Winding:
Only three slot (phase) “Y” wound stators are permitted. No delta wound stators allowed.
Only circular (round) pure copper wire permitted. No turn limit.
Rotor:
Shaft diameter must be 0.125 inches (3.175mm). Only one piece, two pole bonded
Neodymium or Ferrite magnetic rotors are permitted. Magnet minimum length 23.00mm,
maximum 27.00mm. Magnet minimum diameter 12.00mm, maximum 15.50mm.
8.7.5.5 All motors must have the original manufacturer’s logo or name moulded into the end bell.
8.7.5.6 A minimum of two thousand (2000) brushless motors must be available at the time of
approval. A minimum of three hundred (300) brushless motors must have been sold to at
least three (3) distributors or hobby shops or OEM’s at the time of submittal. The
manufacturer has to provide an address of a hobby shop or the like, that any driver who
wishes to obtain these motors at the time of the approval can do so. No hybrid (mixing of
parts from approved brushless motors) allowed.
8.7.5.7 The maximum retail price of a modified brushless motor shall be $129.00

8.7.5.4 Would seem to indicate that either solder tabs or lead wires are acceptable, since it mentions both in the measurements.
8.7.5.5 Appears to be a problem for the motors we use because I haven't seen Lehner or Feigao or BK moulded into the motors.
8.7.5.7 Is an issue with the Lehner since the Lehner is $150 and the limit is $129.

Others can also scrutinize this information, dis-assemble their motors, and break out the calipers to see if the motors we use break any other rules :003: