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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › How to perform range check?
11-10-2005 03:59 AM  14 years ago
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leetony

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Irvine, CA

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How to perform range check?
Hi,
With planes, I range check with engine running at idel and at full throttle. Do I have to do the same with helis? Checking with engine ideling should be easy, but anything else would be

Thanks,
Tony
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11-10-2005 04:05 AM  14 years ago
JitsuGuy

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Tulsa, Oklahoma

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I've heard to check it with the engine running but be careful about it... Don't go full throttle or anything... I usually do it without the motor going and have one of my buds watch the throttle servo for me.
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11-10-2005 04:05 AM  14 years ago
Ice Man 1

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United States of America

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I personaly would not start the engine. Reason being that if you were to get a glitch, the throttle/colective might give way and cause you to crash. Unlike an airplane where it could be tied down easier. But thats just me.
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11-10-2005 05:59 AM  14 years ago
Dakine

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OC, Commifornia

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Nitro engine: You do not need to have your engine running. Collapse your TX antenna and you should get a minimum 50 paces away from the heli. You should get a lot more than 50 paces.

I was at El Toro the other day with my gasser. I had the engine running at higher than idle (so I could hear it from a distant). Fail safe was set to drop to idle. I collapsed the antenna, walked away from the heli and I had range of at least 170+ feet. Once I passed the range limit with the antenna fully collapsed, I heard the engine dropped to idle....it went into fail safe. This gave me a good indication of my range. With the antenna fully extended, range won't be an issue other than, eye sight.
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11-10-2005 06:08 AM  14 years ago
vhorton

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Huntsville,AL

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No need to do a range check with engine running, you might hit the throttle and crash your heil.Big "V"
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11-10-2005 08:41 AM  14 years ago
Yuma_Tommy

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Yuma, Arizona -- USA

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Go with Dakine but you don't need your engine running. Any time you do any major adustments or wiring reroutes or antenna routing you should do a range check. It can save you alot of headache and money!!Raptor 50 V2--Evo 50--Freya X-Spec--Airtronics Stylus
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11-10-2005 08:46 AM  14 years ago
Yug

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UK. Herts

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I use the servo test mode, then walk away from the tx holding the heli (with a finger on the tail pushrod as well). As I'm walking, I move the heli in different attitudes to the receiver. I can feel the servos beginning to not move smoothly (PCM) when I'm at the range limit. Normally 300 - 400 feet.
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11-10-2005 09:18 AM  14 years ago
Ubie

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Cape Town, South Africa

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Guy Martin,
I must say, I like your method,

Please explain the "servo test mode"?
Do you also keep the antenna collapsed?

Thanks
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11-10-2005 09:27 AM  14 years ago
Yug

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UK. Herts

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I use a 9C which has a monitor window to show all 9 servo outputs as 9 bar graphs. In this window, there is a test facility that gently continuously cycles all servos within their set endpoints.
I do range check with tx aerial fully collapsed.
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11-10-2005 11:25 AM  14 years ago
Tailspinner

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JAMAICA, NY

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Guy Martin,

I also use a 9C, never thought of that one.That seems like a good way to conduct the test.Thanks for the idea, I must try this next time i go up.


.
Are you on the list?
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11-10-2005 01:38 PM  14 years ago
Lorents

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Oslo, Norway

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That is a great method Guy, it also makes it possible to check if there is any angles that have better reception than other...

With electric helis I think it is important to do range check with the motor/rotor spinning since it is the motor and ESC that is the #1 source of glitching - but to do this it is a must to have a PCM receiver with throtle set to cut at failsafe.


What comes around goes around.
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