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

Pitch curve set up:

It is important that you build your model to exactly the way described in this manual. Make sure all your linkage rods are exactly the
length determined in the manual included with your helicopter kit.
First, go to the pitch curve menu in your radio for Idle up 1, or Stunt mode 1. You'll see numbers, a graph or both. There will
generally be 5 points you can adjust. You'll have to imagine the points (1,2,3,4,5) as representing points on the collective stick, where
point 1 represents full bottom stick, and 5 represents full top stick. Obviously that makes point 3 center stick and that's where we
start.
Ensure that point 3 on the pitch curve (center stick) to equal 50% of the swashplate's up and down travel, meaning the in the middle
of it's available travel. So, turn on your transmitter, and receiver, flip the flight mode switch to idle-up 1 or Stunt mode, and scroll to
the pitch curve menu. Now place the left stick in the center.
Use a pitch gauge, (We recommend MA3000-06) ensure that there is 0 degrees pitch on both rotor blades and that the mixing arms,
and washout arms are perpendicular to the mainshaft. If any of this is untrue, you'll need to make it so, by adjusting slightly the
length of the pushrods.
Now that you've got 0 degrees at center stick, and point 3 on the pitch curve has a value of 50% (don't deviate here!) We can adjust
the pitch at full top and bottom collective stick positions. Generally we want to have the same amount of pitch on the bottom stick
position as we do on the top stick position in idle up or stunt mode. That means positive 10 degrees on top stick, and negative 10
degrees on bottom stick. (some pilots are now using more pitch 12, 13 or even 14 degrees, but most people find 10 degrees a perfect
place to learn 3D flying).
With the transmitter still in idle up, or stunt mode place the collective stick at the top of it's travel, and take a reading of the pitch
gauge and remember that number. It should be a positive pitch value and 10 degrees is a good place to start. Now place the collective
stick at the full bottom of it's travel. It should be a negative pitch value and again -10 degrees is a good place to start. If the value is
not close to 10 degrees then making it so is a simple adjustment of the swash mix function in your transmitter. In this menu, "swash
mix" or "swash AFR", there are three options. Elevator, Aileron, and Pitch. Adjusting the pitch value, adjusts the total up and down
travel of the swashplate. Making the number higher gives you a greater pitch range, and making the number lower gives you a
smaller pitch range.
If you find that at full top stick, you get a negative pitch value, and at bottom stick you get a positive pitch value, you would go back
to that "swash mix" menu, and make the value the opposite, Meaning if it was 60%, make the number –60%. That will change the
direction of the swash travel.
Now, You'll notice that your pitch "curve" isn't really a curve at all, it's a straight line. You can adjust this if you wish by changing
points 2 and 4. Right now, point 2 is 25%, and point 4 is 75%. You can change those values and it will affect how "jumpy" or
responsive the collective is. Usually leaving it a straight line is best until you really get the "feel" for 3D flying.
If you're a beginner chances are you'll want to fly your model around in "normal" mode. Normal mode means that at full bottom
stick the engine is at idle and the blades are not turning. You also don't have any need for there to be negative 10 degrees of pitch,
usually more like -4 or -5 degrees is best.
This can easily be achieved by raising points 1 and 2. Scroll in the transmitter menu to pitch curve for normal mode, and increase
point 1 from 0% to about 35%, and then you can usually inhibit point 2, so it makes a straight line from point 1 to point 3, which
should still be 50%.
The Pitch Curve for throttle should usually look real similar to stunt mode. Throttle hold is generally used for performing
autorotations.
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