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pitch& trottle curves

Old 03-08-2013, 10:09 AM
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wirly bird
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Default pitch& trottle curves

hello, i have a trex 600 with a 3 bladed rotor head & jr 9303 trans. does any body kown any good pitch & trottle curve i can uses?
Old 03-14-2013, 04:45 PM
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Solman
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Default RE: pitch& trottle curves

Are you flying scale? Trying to figure out why you have a 3 bladed head.
Old 03-15-2013, 08:55 AM
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Rafael23cc
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Default RE: pitch& trottle curves

Copying somebody-elses numbers will most likely lead to damaging your helicopter or hurting yourself or others. Learning how to program those parameters yourself, will lead to your skill set advancing in this hooby.

Given Solman's question above, I will assume that you are looking at Scale flight. These are not intended for aerobatic, or 3D flight.

1. Throttle curve:
With the throotle stick at mid point and the trim up, adjust the servo arm and carburetor arm as indicated in this article:
[link]http://www.ronlund.com/rcheli/ARCHIVE_THROTTLE.html[/link]
Do not worry about the idle up curves as those are intended for NON Scale flight. Make sure the travel is set to -100 to +100 and the carb goes thru it's ful range without binding at the ends. -90 to +87 (or somewhere close) is acceptable.

2. Pitch curve:
Again assuming scale flight, I recommend the pitch curve to go from approx -4degrees to +10 degrees going thru about 4 to 6 degrees at mid stick. This is your hovering point - mid stick.

Flight adjustments:
After the pitch and throttle curves are programmed, take the heli out for a flight, and adjust the mid point of the curves (hovering point) until you have a strong sounding engine and a solid hover. Punching out (full throttle should provide a smooth transition and plenty of power. Adjust the 75% points and 100% points of the curves to provide good power and headspeed. Decrease pitch value if your engine is already at 100% and you do not have the power at full throttle. Adjust the 25% point on the throttle curve, if when reducing power to land the engine over-revs. Make sure you still have enough power to recover from a bad landing approach.

If you require additional information, don't hesitate to ask. Also RCU has a great Search feature that will provide a lot of information. Information that goes back to the creation of the website.

Rafael
Old 03-17-2013, 09:48 PM
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jackeylewis
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Default RE: pitch& trottle curves

well, have no good idea, maybe you can go to the local shop to find help.
Old 03-21-2013, 05:48 AM
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wirly bird
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Default RE: pitch& trottle curves

hello, this is a trex 600 eletric helicopter i dont if there the same ?
Old 03-21-2013, 11:37 AM
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Default RE: pitch& trottle curves


ORIGINAL: wirly bird

hello, this is a trex 600 eletric helicopter i dont if there the same ?
Are you asking if ALL TRex 600 have 3 bladed heads? If they are all the same?

If those are the questions you are asking, I REALLY suggest that you get face-to-face "training" with an experienced pilot before you go any further. Try any of the following:

[link]http://www.modelaircraft.org/clubsearch.aspx[/link]
[link]http://rc.runryder.com/helicopter/t479223p1/[/link]
[link]https://maps.google.com/maps/ms?ie=UTF&msa=0&msid=217789731333754300750.0004d59fa6f42a3de34bc[/link]

Rafael
Old 03-21-2013, 02:47 PM
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wirly bird
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Default RE: pitch& trottle curves

no , you were first talking about a gas helicopter but , i was talking about an eletric trex 600!
Old 03-21-2013, 02:56 PM
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wirly bird
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Default RE: pitch& trottle curves

i have a trex600 with a 3 blade rotor system i need help setup thee pitch, troddle& the right pitch of the blades . im in a loco club but no one has  setup a helicopter like this .

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