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HomeAircraftHelicopterAerial Photography and Video › Co-Pilot and Logo 24, my test results......
03-29-2005 05:01 AM  13 years agoPost 61
Supersix

rrApprentice

Sydney Australia

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do you think a voyager e would be ok. i also understood the pegging a heli down and spinning it up is very bad

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03-29-2005 05:07 AM  13 years agoPost 62
markrwalker007

rrApprentice

Invercargill New Zealand

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I don't think its bad just don't stress it out by giving it more than hovering pitch/throttle and it wont be any different than not having it pegged,
Its got to be better than having it tip over, I think the voyager e would have way less noise than joker you should have better luck just treat it with care until youve tested it out fully!

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03-29-2005 07:23 AM  13 years agoPost 63
ehx

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Northern Minnesota

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I use a PPM receiver (JR549) in a Voyager E. Zero glitches. I expect the FS8 would be the same. Once you get to 24+ cells it's a whole different ball game.

Testing a big electric (or any heli) is really quite easy. Range check without the motor running. I walk a circle with a collapsed antenna at ~200 feet. With PPM look for movement, with PCM look for NON-movement (while you are moving the stick(s)). If this passes weight down the heli and (with the blades removed) do the same test with the motor running. If this works then attach a Rotopod (or similar) and test with the blades. Work your way out to ~200 feet with the heli close to the ground. If there is a glitch(s) the Rotopod may save the heli. If all these tests pass then you can take the heli into the air with a high degree of confidence. It's pretty simple. I've never lost a heli this way in 8 years and that includes a couple of Jokers and a couple Bergen gassers.

With the FMA receiver you can also record the noise level that the receiver sees. Use that feature. There's no need to do the old fashion guessing on the noise level which it seems that some people are still doing. If the receiver reported noise level is high why even bother to do a flight?

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03-29-2005 09:25 AM  13 years agoPost 64
markrwalker007

rrApprentice

Invercargill New Zealand

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When I range tested, I did it with the engine off, then with it on it was fine
at lower revs, but when I spooled right up to hovering head speed, the noise must have increased the receiver locked me out heli went full up and right while sitting on the ground I could do nothing but watch training gear wouldn't have helped, maybe I had a worse noise case than most but I must stress that you peg it down guys its not going to hurt it (or any alternative being as secure as pegging), then spool down and check for bad frames or playback flight recorder if youve got one.

I learnt to fly with my gasser the only crash ive had yet is this one I had no control over it and I feel very bummed out I did not test this properly before it happened and I dont want it wrecking anyone elses machine or hobby for them.

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03-29-2005 09:57 AM  13 years agoPost 65
Supersix

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Sydney Australia

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when i had my fs8 on my voyager e i was range checking and the throttle clitched and stripped the gears. i had a crash (stoopid mistake) before i was able to try the flight stab and i have it on my venture 30 and have had no problems. i have a 9x radio and can get no where near 50m with the antenna down on any rx r700 or jeti 5 channel.

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03-29-2005 03:27 PM  13 years agoPost 66
RoadkillBC

rrApprentice

SE Wisconsin

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Thanks for all the great info, I appreciate it. I ordered the PC interface kit for the FS8, and plan on keeping the J2 low and close until I know how clean my signal is. Hopefully I won't have a markwalker007 experience, that sounds like quite a nightmare.

So far no glitching just hovering around 30' out and 10' up, but it's only been out to play 5 times. I'm using a Tanic 10s3P pack with a Kontronik Jazz 32-10 ESC. All my servo leads are twisted and all power wires are very short. My antenna is routed straight out away from the frame, and then it runs parallel with the boom. I use zip ties to keep the wire a couple of inches away from the carbon fiber and aluminum boom, but I'll probably experiment with that a bit more to see if the range test results change.

Despite what I would call a fair amount of success with my J2 and FS8, I'm really hesitant to test the limits, especially after reading about some of the experiences here. More ground testing will be done until I can hook up the PC interface to see what's really going on. I'll definitely keep everyone posted on any progress I make (or setbacks).

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03-29-2005 04:25 PM  13 years agoPost 67
R Hudson

rrKey Veteran

Denver, CO

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Hey RoadkillBC

I sent you a PM

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04-11-2005 09:02 AM  13 years agoPost 68
dnam

rrVeteran

Herndon, VA - USA

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Have any one of you used the Austrian version of the Co-pilot?

I used Google's translate tool:

http://translate.google.com/transla.../language_tools

Go to "products" --> "helicopter electronics"

I am sure Angelos' system will be better when it comes out but for now I think this is the only option if one wants to use their PCM receivers instead of the FMA FS8 PPM Rx.

I will be receiving a Futaba 14MZ in a few days and I am sure every one knows it has PCM G3 2048 so twice the resolution of regular PCM systems. Question is, will the benefits of the extra resolution be lost if used with this stabilizer system or the system will still have 2048 "steps"?

Thanks!
Nam

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04-11-2005 09:59 AM  13 years agoPost 69
Angelos

rrKey Veteran

nr Oxford, OX11, UK

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The servo resolution will depend on the spec of the co-pilot to sample and regenerate the servo pulses. I have seen poor resolution with the FMA unit; not sure about the Austrian one. Whatever the case, if you can get 1024 steps it is probably as smooth as it gets. Yes, 2048 is twice as many but you won’t see and difference as the servo dead band and backslash are way bigger than one servo step.

However, there are some other important things to consider. PCM G3 generates the servo channels in triplets which is a great advantage for smooth movements of CCPM swashplates. Adding a co-pilot in line, you will most likely loose this as most units generate the 3 servo outputs sequentially (the servos get updated one after the other).

Also, some co-pilots are not able to read these triplets thus you will have to resort to workarounds such as cleaver channels assignments on your transmitter, which in turn add delay to the servo response.

-Angelos

Spartan RC R&D

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04-11-2005 01:57 PM  13 years agoPost 70
lele

rrVeteran

italy

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Angelos
Please could you give as some news about your flight stabilizer?
I would prefer to wait and not get the austrian one (I am sure your sistem will be better) if I could only have an idea of how long (more or less) it will take for yours to be ready.
Will the infrared version (sensor to be bought some where else) ready in closer time?


Thanks

Lele

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