TSR Falcon 7

One of the batch that was sold out in mid 2013 with TSR marked on the end stripped by Chris Frost in July 2013 (after it had thrown a wire on the one pole)  

TSR Falcon 7

Sample of the late 2013 batch supplied by C.Keeling and stripped by Ian Fisher in December 2013

JK Hawk 7

Sample supplied by ABS and stripped by Ian Fisher for the March 2013 Council Meeting

Trinity Evil 9

Sample supplied by ABS and stripped by Ian Fisher for the March 2013 Council Meeting

Fast Ones Demon

Sample supplied by ABS and stripped by Ian Fisher for the March 2013 Council Meeting



Can size and fixing holes Identical on all 5 motors.    Ian reports that all motors ran faster in the correct direction for Production chassis and that they all run in that direction with the positive supply to the red dot terminal.

Can size and fixing holes and label  identical to earlier Falcon 7, appears to be made on the same tooling. Marking is TSR F7 on both Falcons  but the  type face is different from the earlier batch

Made on different tooling from the other 4, note longer cooling hole.

No label on the side of can

Appears to be made on identical tooling to the Falcon

Arrow on label points in opposite direction to Falcon but see Ian’s report on direction of rotation

Appears to be made on identical tooling to the Falcon

Trident arrows on label points in opposite direction to Falcon but see Ian’s report on direction of rotation

Stack dia 13.06mm

Shaft protrudes about 8mm at can end and 1mm at brush gear end

Stack dia 13.05mm
Appears to be made on identical tooling to the earlier Falcon

Shaft protrudes about 6mm at can end and 8mm at brush gear end

Stack dia 13.04mm
Made on different tooling from the other 4, laminations considerably thinner than the others

Stack dia 13.06mm
Appears to be made on identical tooling to the Falcon

Longer comm end shaft

Stack dia 13.05mm
Appears to be made on identical tooling to the Falcon

Longer comm end shaft

Wire dia 0.255mm  with insulation.
Dia 0.0091 to 0.0092 inches (approx 0.231-0.233mm) without insulation Turns 65 (2 poles counted by CF)

Wire dia 0.255mm with insulation

Turns 65 (1 pole counted by IF)

Wire dia 0.27mm with insulation
Dia 0.0091 to 0.0092 inches (approx 0.231-0.233mm) without insulation
Turns 60 (1 pole counted by IF)

Wire dia 0.29mm with insulation

Turns 60 (1 pole counted by IF)

Wire dia 0.29mm with insulation

Turns 60 (1 pole counted by IF)

Endbell, brush gear

Note red dot position  

(Note this is a used motor hence shorter brushes and debris inside)

Shaft length* 8.5mm can end
                  1.5mm brushgear end

Appears to be made on identical tooling to earlier Falcon 7. The red dot is in a different position from the earlier Falcon (same as on Evil 9 / Demon)

Brush orientation is the same as the other motors

Shaft length* 6mm can end
                  9mm brushgear end

Made on different tooling from the other 3 but quite similar

This early Hawk 7 does not have a tied com, later batches do have a tied com which might be expected to improve reliability - see notes on Hawk Retro.

Appears to be made on identical tooling to the Falcon

Shaft length* 9mm can end
                  8.5mm brushgear end

Appears to be made on identical tooling to the Falcon

Shaft length* 9mm can end
                  8.5mm brushgear end

All motors have brushes where the curve is at right angles to the curve on the comm.
The new Falcon 7 is no different (we had earlier been led to expect this would be the right way round)  

The two Falcon batches appear to be functionally identical apart from the shaft length.  The  TSR F7 type face and the position of the red dot are different, obviously this doesn’t matter from a performance point of view, but could be used to tell the two apart should we ever want to do that.

To put the TSR F7 at the top so it’s visible in a JK production chassis-
         The old batch Falcon need to be mounted with the red dot / + wire at the front and the sticker at the front.
         The new batch Falcon need to be mounted with the red dot / + wire at the rear and the sticker at the rear.

Stack length cannot be measured accurately due to uneven insulation on end of the stack. All 5 look the same at about 10 - 10.1 mm

* Shaft length from face of bearing. Due to end float,the measurements are  approximate.

I didn’t attempt to asses the magnet strength

December 2013

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