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Setting up a transmitter for governor mode

For Mikado LOGO Electric Heli's

Method 1: Using flight mode switch for rpm control Note that this is a setup to give 0 degrees pitch at mid stick. Some would say that this is not suited for beginners, but then others say that they would rather learn this way right from the start. I recommend an alternate method for raw beginners, because it is so much simpler to understand and setup at a time when there's already enough new things to learn.

In the more complex and most often-used method illustrated below, normal mode is used only to slowly ramp up the rpm to a throttle percentage XX, which is determined through trial and error. It is also is the setting for the flat (constant value) curve in stunt 1. My throttle and pitch curves for each mode are:

Mode	Throttle Curve	Pitch Curve
Normal: Throttle Curve: 00,00,XX,XX,XX Pitch curve: 25,25,50,75,100 this minimizes drag (negative pitch) during spool up
Stunt 1: Throttle curve: XX,XX,XX,XX,XX Pitch curve: 00, ,50, ,100 Stunt 2: Throttle curve: YY,YY,YY,YY,YY Pitch curve: 00, ,50, ,100 (Stunt 1 used for example photos)
Throttle Hold:: Throttle curve: 00,00,00,00,00 pitch curve : to suit autorotations, i.e. minimum of -5 degrees	(set to zero)

...where XX, and YY, are lower and higher rpm (throttle) settings respectively The mechanical pitch range is around +-11.5 degrees (beginners -3 to +11). Electrics typically use more pitch than glow heli's. When the batteries are plugged in and the controller initialized there are two safeties with this setup so that either the throttle stick or the Throttle Hold: switch could be bumped and the motor would not start accidentally. Note that there is a zero throttle dead spot of about 25% of the stick's throw in Normal mode, again for safety. Typical values for XX and YY are around 80% and 85% throttle, determined though trial and error and a tach while hovering. For example, the head speeds on my LOGO 20 were tached at 1620 and 1800 rpm recently. The heli is ramped up from 0 to XX throttle with the 2nd quarter of the throttle stick's movement and can be as slow as desired. Once mid-stick (0 degrees pitch and XX throttle) is reached, the flight mode switch can be seamlessly moved to Stunt 1 (no jumping of heli) and flight begun with the governor mode rpm determined by setting of XX.

Method 2: Using auxiliary channel The other, very simple way to achieve rpm control (what I did for almost 2 years) is to forget pitch and throttle curves entirely, set up the one pitch range mechanically, and plug the throttle channel into auxiliary 2 after setting the pitch trim knob to control that channel. Just dial up the rpm that you want and go fly. This is SO simple to do and is one of the beauties of using a governor mode ESC for beginners. I strongly recommend this method if this is your first CP heli. The mechanical pitch range can be set to -3, +11 at first and then more negative pitch introduced later by increasing servo arm length and adjusting the swashplate linkages.

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