Suggested Model weights:
- Mighty Midget 10/3/32- 2 cell WYE wind suitable for planes with an AUW of within 2oz. Optimum model weight would be around 1.4-1.5oz ( around 40gms thrust @ 1 amp )
- Mighty Midget 10/3/26S- Single cell wind, best for slowfliers and such. This is an ideal replacement for motors in the KP00 range, good for planes with an AUW within 1.5-2oz ( 26gms thrust at 1 amp ) depending on the type of plane. It’s possible to build a plane with an AUW of 1oz using Falcon servos. Will also work on 2S Lipo with small props ( GWS 3*2 ). Will put out 40gms thrust @ 1amp, and is good for planes using the small prop, like Delta wings and such. Good for planes with an AUW of around 1.5-2oz.
- Mighty Midget 10/3/26D- Single cell wind Delta terminated. Good for planes with an AUW of within 2oz ( 35-37gms thrust at 1.9A ). Best for planes in the 1.4-1.5oz range.
- Mighty Midget 10/6/20- Double whopper, best for planes with an AUW of within 3.5-4oz ( 63gms thrust at 1.2amps ). This motor is best suited for Micro 3D planes, like the MA Microedgeling, with an AUW of 40gms.
- Mighty Midget 10/6/16- Double whopper, best for planes with an AUW within 4oz ( 80+gms thrust @ 1.9A ). Also well suited for Micro 3D planes weighing around 50gms.
These are only suggested weights, Of course, Lighter is always better!!
IMPORTANT DO’s AND DON’Ts
Remember, the Mighty Midget motors, like all their bigger brothers, are
power plants and as such, should be handled with the same care and caution.
- Secure mounting is a must, since both torque and prop thrust pull will be present in a running model. Use of a purposefully made motor mount, such as BSD’s, is strongly recommended. Remember that a light power plant has little capacity to absorb any vibrations or shock.
- Use only balanced props, to avoid vibrations, and the consequences. Many of the smaller props are found to suffer from considerable imbalance, and it would be worthwhile to either select those with minimum imbalance, or to balance them manually. A light motor, with a poorly balanced prop, can be expected to behave not much better than a cheap internal combustion engine, with a poorly balanced crankshaft . Consider that in the case of a microBL motor, the ratio of prop mass to motor mass, is indeed unfavourable, being about one to three.
- Follow manufacturer’s recommendations while choosing the type of BL winding and stack. Since the data has been generated after extensive testing on the suitable props commercially available, the user should obtain satisfactory performance, and better life, from the motors, by a judicious selection of motors and props. Data related to performance of different motor types, using available props, is attached, for ready reference.
- Replace prop adapters when they are found to be loose after repeated changes.
- Run the motor over an extended period, at full throttle, on a large prop, under static conditions, to avoid overheating. In the air, however, there should be no problem since even a little airflow around the can is enough to keep the motor cool.
- Use any liquid glue dispensed at the rear of the motor, to secure the motor to the mount. If glue has to be used, it must be used very sparingly at the aluminium tube/mount junction only. Failure to ensure this, can result in the glue entering the bearings, with disastrous consequences. Even excess glue on the outside of the tube can wick to the windings, and in the event of a winding break at some point of time, it would be impossible to remove the windings from the stack. These considerations stem from the fact that the motor being tiny, all parts are at close proximity to one another, enough to be adversely affected by what happens nearby.
- Use any hand tools to hold the bearing tube or the shaft, to attach the motor to the mount, or a prop to the shaft, respectively. While tools are used to get a better grip on larger objects, because of the micro size of the Mighty Midget motors, and the light parts used, even hand tools used in electronic work can cause irreparable damage to the motors.
- Use superglue to attach a loose-fitting prop to the shaft.
- Force a prop with an excessively small bore, on to the shaft, to avoid undue force on the rotor.