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08-06-2007 03:11 PM  10 years agoPost 1
KarbonBird

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Australia

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Some general questions on this ...

Is it possible to use slightly lighter wires to connect the AP to RX etc? The supplied ones are OK but I would prefer to use some thinner ones (like those on a HS-56) so I could shape them better and they wouldn't stick out so far). I have got braiding to cover them so they will be protected and look better too on the T-Rex SE.

Also, how does one adjust the travel of the swash - mine doesn't seem to travel all the way up and down.

Thanks

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08-06-2007 05:21 PM  10 years agoPost 2
Autoeject

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Ashtabula, OH, USA

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You may use smaller guage wires if need be.

To adjust travel, increase the PitR, EleR or AilR as need in the AP2000i menu.

Mark Webber
wai-rc.com
Spartan RC Distributor
Outrage Helicopters

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08-06-2007 05:23 PM  10 years agoPost 3
Autoeject

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Duplicate

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08-06-2007 05:56 PM  10 years agoPost 4
AceBird

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Utica, NY USA

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Also, how does one adjust the travel of the swash - mine doesn't seem to travel all the way up and down.
Are your ATV's in the radio at or above 100%?

Ace
What could be more fun?

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08-06-2007 10:57 PM  10 years agoPost 5
KarbonBird

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Australia

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Are your ATV's in the radio at or above 100%?
Yes ATVs are set to 100%

I haven't changed the Pit, Ele and Ail that Mark suggests - these are left at the default of 50% but I will try and increase these. Where does the "Ring" come into play here to prevent binding?

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08-07-2007 02:25 AM  10 years agoPost 6
Autoeject

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Ashtabula, OH, USA

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Once you get your rates correct, put the cyclic stick in the corners of the available travel and observe the swashplate for binding against the mainshaft. If you seen any binding, reduce the Ring % until the binding is eliminated.

Mark Webber
wai-rc.com
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Outrage Helicopters

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08-07-2007 01:09 PM  10 years agoPost 7
KarbonBird

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Australia

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Thanks all for the feedback ....

Have changed PitR etc - increasing it slightly but there is a new problem! (sorry)...

I set the horns on the swash servos to be level (no sub trim)- done at centre stick. When i drop the stick all the way there is hardly any movement at all on the servos - they pretty much stay almost level. when increasing the stick there is a fair amount of travel upwards. Would it depend on the pitch / thrott curve??? I would expect the arm to travel the same distance down as it does upwards from the horizontal horn position... but I may be wrong.

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08-07-2007 01:21 PM  10 years agoPost 8
Hogster

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Surrey, UK

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Sounds like your pitch curve is flat from bottom-stick to mid-stick and sloped between mid-stick to top-stick ...

That would be the first thing I would check anyway ...

My 2p

David

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08-07-2007 02:05 PM  10 years agoPost 9
KarbonBird

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Australia

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Sounds like your pitch curve is flat from bottom-stick to mid-stick and sloped between mid-stick to top-stick ...
OK ... this sounds interesting, thanks David.

My pitch curve is 45 - 60 - 76 - 87 - 100 (normal)

Throttle curve: 0 - 75 - 100 - 100 - 100

Rossco

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08-07-2007 02:54 PM  10 years agoPost 10
Hogster

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Hmmm ... Well you should expect to see *less* downward movement of the swash but not *no* movement at all! Were you seeing normal downward movement before you changed the Pit values?

David

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08-07-2007 03:04 PM  10 years agoPost 11
KarbonBird

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Australia

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Were you seeing normal downward movement before you changed the Pit values?
Can't recall but i think there was always less travel down below...

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08-07-2007 05:12 PM  10 years agoPost 12
AceBird

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Utica, NY USA

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Throttle curve: 0 - 75 - 100 - 100 - 100
What the heck is this?

Ace
What could be more fun?

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08-07-2007 05:38 PM  10 years agoPost 13
Autoeject

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Ashtabula, OH, USA

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What the heck is this?
Curve for an electric.

Mark Webber
wai-rc.com
Spartan RC Distributor
Outrage Helicopters

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08-07-2007 09:27 PM  10 years agoPost 14
AceBird

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oh, OK I just came from the gasser forum and had gasser on the brain.

Ace
What could be more fun?

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08-08-2007 12:11 AM  10 years agoPost 15
BigguyOz

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Forster, New South​Wales, Australia

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Rossco, your normal pitch curve only has a 5 point negative component which would be hard to notice compared to the 50 point positive. I would suggest that you just try Idle-up (with motor disconnected of course) with pitch curve of -100 -50 0 50 100, and the swash should move through the whole range.

In fact, I would recommend you only fly your AP missions in idle-up but with a pitch curve something like -80 -45 0 50 100. The reason for the big negative is to allow you to drop out of a big gust or thermal.. nothing more sphinter-tightening that seeing your heli start to climb like an elevator without any input! By running in idle-up, you will always have solid headspeed, which translates into consistent control of the heli. Using normal curves, trying to reduce height results in degraded headspeed and mushy (at best!) control of the heli.

Tony Stott

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08-08-2007 12:22 AM  10 years agoPost 16
Hogster

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Surrey, UK

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I run with about 4 degrees of negative pitch at bottom stick - I believe that's the sort of figure that should be used during an auto ... (?)

Is there any reason to have more (negative pitch) than that? Combined with the weight of the heli I find it hard to believe that it could still rise, even in a thermal ...?

Cheers,

David

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08-08-2007 01:46 AM  10 years agoPost 17
Autoeject

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Ashtabula, OH, USA

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Negative required depends on lift. In heavy winds, my gasser with 810's needs a lot more negative to get back down. My Trex600 doesn't need as much with the same weight underneath. Even if you find yourself short on negative collective, you can always ditch altitude with pitch or roll.

Mark Webber
wai-rc.com
Spartan RC Distributor
Outrage Helicopters

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08-08-2007 02:10 AM  10 years agoPost 18
BigguyOz

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Forster, New South​Wales, Australia

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Well we had a near fly-away with my Trex450 AP ship which was a huge surprise given its AUW of 1165g. It got into a "jet-stream" which generated massive lift, and even with about 4 degees of negative pitch (which works out at about -40 if +100 is +10 degerees), it still climbed!

The pilot tried to go nose-down into the wind to bring the heli down but it was still being blown downwind. If he coud have pumped in serious negative pitch he could have forced the heli down to lower wind areas, but finished up needing to hit throttle hold as the heli disappeared behind the treeline downwind.

Another time, the heli ballooned 50+ feet with a single gust.

By setting a large negative pitch only at the bottom end of stick travel, you are hardly likely to ever use it, but its nice to know its there just in case....

Tony Stott

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08-08-2007 03:40 AM  10 years agoPost 19
KarbonBird

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Australia

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Wow Tony - this is scary!!! Will certainly have to review my setup. BTW what height were you at when things got out of hand?

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08-08-2007 05:13 AM  10 years agoPost 20
BigguyOz

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Forster, New South​Wales, Australia

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About 400 feet AGL, but on the top of a hill. Here is a shot from an earlier flight the same day, from a lower altitude.

Tony Stott

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