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700 Class Nitro Helicopters 700 Class Nitro Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 10-07-2009, 02:49 PM   #1
acidkindred
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Default Collective pitch and cyclic pitch

My second hand 700 has +-14 degrees collection and 12 degrees of cyclic.

The cyclic values seem awfully high. I've read I'll get binding in the corners with over 7-8 degrees cyclic.

I'm thinking +-12 and 7 would be good.

What are you guys using?

thx
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Old 10-07-2009, 09:23 PM   #2
stevehonn
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+-12 and 7 cyclic sounds about right, run any more collective and you need to be very good at collective management. I think I may be running 8 degrees cyclic but using the 10CG I have the swash ring feature active so no binding in the corners.

One factor that will affect both is the blades you are using, both brand and length.
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Old 10-08-2009, 03:28 PM   #3
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this may be obvious, but whats the best way to get an accurate reading for cyclic pitch?
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Old 10-08-2009, 03:34 PM   #4
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Not sure if this is the perferred way, but I measure it using my pitch guage on the main blades with the blades in line with the tail boom. I move the right stick to the max throws for ali and ele then measure.
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Old 10-24-2009, 03:59 PM   #5
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Me too bought a second hand 700N and i readjusted the head as per Finnless headsetup and used the align servo weels with no subtrim (great thing those servos wheels) but i am only able to get barely 12 of pitch. It is surely enough for my style of flighing but i am wondering how every body else gets 14. My Pitch compensator is allready hitting the headblock with 56% Pitch mix on my DX7. Anything i could have done wrong??
the servo wheels are 90 the swash is level at midstick the Pitch is 0. i could get more negative Pitch but at positiv i am at the limit. And you can not lower the swash with this A-Arm design.

Any insights? Would a Picture of my head may be helpfull?? i am using a Walkera Pitch gauge. Did well so far and my NHP 710 Blades are the biggest blades this Gauge can swallow but it might be not the most acurate one.

Picture is coming!!

Sorry for the bad quality of the Pics may be tomorrow when i go fly i get some better with propper illumination!
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Old 10-24-2009, 06:11 PM   #6
tony stevens
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Are your washout arms in line(level) with eachother at centre stick?
and your blades 0 degrees at centre stick?
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Old 10-24-2009, 09:35 PM   #7
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Yes. I settled for +-12 degrees for collective and 7 degrees cyclic and it feels good. I may end up going for more cyclic once I get things settled.
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Old 10-25-2009, 06:03 AM   #8
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All Arms are in line as per the setup Vids from Finnless. Thanx by the way Bob for all the effort you have made over the years. And you enspired more and more people to record vids of there builds to support the comunity!!
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Old 10-25-2009, 09:26 AM   #9
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7 on cyclic kinda too slow ... i used to have 8 on cyclic and now its 10-11 on cyclic.. its a big different to do aileron tick tock on 7 and 10 cyclic
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Old 10-30-2009, 08:12 PM   #10
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Sounds like you need to shorten your swash plate links to bring down the swash. I had to actually file down the A arm ball link to get the swash lower, me and another guy did the same thing and have been flying it pretty hard all year. I can get 14 and 14 if I wanted too, but I opt at 12 and 12.
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Old 10-31-2009, 08:41 AM   #11
lowflyer101
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Quote:
Originally Posted by oysifly View Post
Sounds like you need to shorten your swash plate links to bring down the swash. I had to actually file down the A arm ball link to get the swash lower, me and another guy did the same thing and have been flying it pretty hard all year. I can get 14 and 14 if I wanted too, but I opt at 12 and 12.
nah.. you needs to do the other way to raise swash if you want more cyclic pitch.. otherwise the swash with hit/bind the top bearing block on Neg. cyclic throw
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