E-gpeden
Senior Heliman
Location: Lake Louise, Alberta, Canada
| Wait, I know some of those answers
"What is this timing thing?"
Like a car motor, the "ignition" timing can be advanced, i.e. the amount of distance/time that the rotoating magnetic field is kept ahead of the stator.
"What is this switching frequency?"
I believe that it is the DC-DC conversion switching, the rate of which will affect performance of various motors diefferently.
"How do I set throttle curves to get a governor effect at the above stated 1600+ RPm's?"
Basically you use a "flat" throttle curve, ie all points set at the same throttle setting and use the flight mode switch to switch between 2 or three settings. I use the normal mode to ramp up rpm manually between 0% and 50% stick movement so that at mid stick the heli is at the desired rpm setting for hovering maneuvres (which is also the rpm setting in mode 1) and 0 degrees pitch. At that point I make a seamless switch to flight mode one, which will have a constant throttle setting, (for example 80%). Then I take off and fly at constant rpm, usually switching to flight mode 2, which has a slightly higher rpm setting. I have the throtttle hold switch set set to 0 rpm to have that as a safety and also for autorotations. The particular throttle settings are achieved by trial and error. Set up a couple of percentages for flight modes 1 and 2, measure rpms, and make adjustments and try again.
"Do I set it to Low or High RPM's?"
The hacker motor is a 2 pole motor, so you need the low rpm mode. Don't worry, the term "low" isn't going to slow down the motor.
Cheers!
Cheers!
Glen |
