Throttle Curve Set Up - miniature aircraft Fury 55 X-CELL Assembly Instructions Manual

throttle curve set up:

Build the throttle linkage as shown previously. This linkage length may change but ideally, you'll want the servo linkage 90 degrees
to the servo horn. This ensures equal travel in both directions.
Turn on your transmitter. Scroll to the "throttle curve" screen and notice that there are points, usually 5, and the all have an assignable
percentage. For example point 1 is 0% and point 5 is 100% (of the servo's travel). Ensure that when the throttle/collective stick is
at the mid point (point 3) that the engine's carburetor is exactly ½ or 50% open (or otherwise stated in the manual included with the
engine). This is crucial to easy set up. You may have to loosen the throttle arm on the carburetor for this to happen. Place the throttle
stick to ½ and see where the carburetor opens to. On most popular engines today there is a mark that shows the halfway point. If it is
not quite ½ way open you can use sub trim to make it so, but you don't want to use too much. Too much sub trim can make further
set up more difficult.
Move the throttle stick to full throttle . The servo should open the carb to full open. If it opens less you can increase the end point
in your radio so that it opens a little further, and if the servo binds (keeps wanting to move but the throttle is fully open) you can
decrease the endpoint, but ideally you want the endpoints as close to 100% and 100% as possible.
If you are experiencing the need for more servo movement, try moving the ball link out one hole on the servo arm, and conversely if
you need much less servo movement, you can move the ball link one hole in.
Once you have this set up in normal mode you'll have to start and fly the helicopter to determine whether you need more or less
throttle, but from what we've found this is a good starting point.
Setting up for Idle up or stunt mode is a little different, as you'll want full throttle on either end of the collective/throttle stick travel.
Scroll to the idle up menu in your radio, and you'll again find points such as 1,2,3,4,5. If you do not have a governor you have to set
up a fixed throttle curve that controls the throttle. If you have a governor, please follow the set up instructions from the manufacturer
of the governor. Without a governor you'll rely on the throttle curve to control the engine rpm while you're managing the collective
stick. Make points 1 and 5 100%. Make point 3 50% Then you'll want a friend with an optical tachometer (we recommend MA3000-
50 Optical Heli Tachometer) to observe the head speed of your helicopter. Make sure to follow the rotor speed recommendations
given by the manufacturer of the rotor blades you are using. If the head speed is too low, then increase the value of point 3 by 5%
increments until you gets the head speed you desire.
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