FAQ - Frequently Asked Questions
This is our FAQ document. It is a living document and we highly recommend visiting it for latest news. If you do not find your questions answered, please get in touch with us personally (See our contact details below).
Q1 : What are the differences between TORCMAN motors and other standard type of motors?
A1 : Torcman motors are out
runner brushless motors. As opposed to regular motors the motor with the
magnets is turning in the outside of the windings instead of the inside. This
concept leverages the forces, resulting in a significantly higher torque.
Regular motors do have 2 or 4 poles, while TORCMANs do have either 10 or 14 of
them. The field that the commutator produces has to turn around 5 or 7 times
respectively until the rotor has finished one turn. This is also known as the
electric gear drive of 5:1 or 7:1. Saving a mechanical gear has a lot of good
side effects. The Motor will be shorter, less noisy and most importantly me
more efficient. A 10-pole motor will run most efficiently between 5.000 and
10.000 rpm, a 14-pole motor between 8.000 and 10.000 rpm. The
Q2 : Can I install a TORCMAN motor “inverted” (rear side mounted)?
A2 : YES. The standard version of the TORCMAN motors is meant to be mounted in the inner side of the firewall. The shaft will go through the entire motor; the rotor turns inside the fuselage. In case you want to attach the prop directly to the rotor, you need to change some steps in the final assembly or tell us if you buy a ready to use motor. It will require a different shaft that transmits the power to the ball bearing. Helicopters also typically are set up this was and any other high power configuration. You will also need an extra ball bearing (see samples).
Q3 : How do I determine the best motor for my plane?
A3 : There is a
configurator on our website (individual files for planes and helicopters). Chose
the line in the table that matches your application best (Type of model,
weight, # of cells,….). On the right hand side you find the corresponding
motor, e.g. TM350-20.
Q4 : What are the recommended controllers?
A4 : Please make sure you use controllers that:
More information is under configuration – controllers on our website.
Q5 : The fuselage of my glider is (at the nose) to narrow for the TORCMAN. What do I do?
A5 : For theses cases we have created an extender for all motor types/sizes. It will set the motor 20-50mm away from the firewall and help in most cases. The extender is an aluminum swivel, an additional shaft extender and ball bearing. See also our website and check out motors or see the online shop.
Q6: How do I determine if it is better to use the 10-pole or the 14-pole version?
A6 : The number of poles
can be looked at like a gear drive. So if you take the number of poles and
divide it by two, you have the gear drive ratio (10-pole translates as 5:1 and
14-pole as 7:1gear ratio). In other words the
Preferred applications for 10 poles TORCMAN: helicopters, models with small diameter propellers at high rpms, hotliner, all applications with 24 cells and more.
Preferred applications for 14 poles TORCMAN: slow flyer, park flyer, e-gliders, fun flyer, planes doing aerobatic carrying not more than 24 cells
Sometimes models do not allow the usage of a large diameter propeller; therefore you will also have to go back to a 10-pole version.