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HelicopterMain Discussion › flybar paddle stickers
09-04-2009 04:00 PM  8 years agoPost 21
jackheli

rrProfessor

Vancouver - Canada

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Trap, it appears that until 3.1 everything works. But sincerely, I would not trust that video for anything.

If you are concerned about this issue, it is better to test your system yourself.

If you don't have an adjustable power supply, just hook a voltage meter to the system leaving the helicopter on while it drains the battery.

That would be the safe thing to do.

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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09-04-2009 04:07 PM  8 years agoPost 22
Trap

rrApprentice

Grand Forks, North Dakota

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You are right about "testing it yourself." I have a Freya that I'm converting to 2.4ghz and am concerned about receiver battery capacity. I am running a 4.8 nicad pack - don't fly hard 3d (not even much "soft" 3d). I'm a little relieved by the video if it is correct at face value. Obviously, the Futaba green light stayed on, but the servo quit working at 3.1vdc. The Spectrum receiver quit at 3.1vdc. As you said before, I will have to run my own tests. Looks like it would be nice to have a variable power supply.... Christmas - Hey honey, how about a variable power supply? Her answer would most likely be, "Can I pot plants with it?"

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09-04-2009 04:27 PM  8 years agoPost 23
Darren Lee

rrElite Veteran

Woodstock, GA

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I am running a 4.8 nicad pack
People still do that?

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09-04-2009 04:49 PM  8 years agoPost 24
heliaddiction

rrNovice

tenn

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my charger doesn't require a voltage imput i always check the voltage with a voltage tester before i fly i thought that a 7.4 volt pack meant 7.4 volts but thanks to dood i now know that 7.4 is the voltage at which the pack operates at.

Failing to prepare is prepareing to fail.

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09-04-2009 04:55 PM  8 years agoPost 25
TMoore

rrMaster

Cookeville, TN

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The rule of thumb for Lipos or Lion's is 3.5 volts/cell, hence a 2s pack should be recharged when it reaches 7 volts. A 2s pack should come off of the charger hot at around 8.1 volts.

TM

Delayed Response Operator Not Engaged

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09-04-2009 08:27 PM  8 years agoPost 26
Jasper7

rrKey Veteran

Birmingham , UK

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Jackheli

As they sya Stats tells the story of who made them

But the light don't go out at 3.1q, spectrum indicates a brwon out. Futaba don't.

So how have you deduced Spectrum turned off first?

By the way still on crystal

Jasper 7
T-Rex 700N
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Citizen Number: 00212

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09-04-2009 09:56 PM  8 years agoPost 27
jackheli

rrProfessor

Vancouver - Canada

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So how have you deduced Spectrum turned off first?
The light on the Spectrum receiver goes off at 3V and the Futaba light doesn't.

Detecting a power failure is cool. Not the usual kind of thing you would look for.

It would be great if the test would have been done with a second generation Futaba receiver though, like the 617.

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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09-04-2009 10:00 PM  8 years agoPost 28
Dood

rrProfessor

Wescanson

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The light on the Spectrum receiver goes off at 3V and the Futaba light doesn't.
Who gives a rats ass about the light?

Pay attention to the servos, both of which stopped working at exactly the same voltage.

Thats the part you need to worry about, not some stupid green light.

  ▲
▲ ▲

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09-04-2009 10:20 PM  8 years agoPost 29
jackheli

rrProfessor

Vancouver - Canada

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Pay attention to the servos, both of which stopped working at exactly the same voltage.

Thats the part you need to worry about, not some stupid green light.
Sorry. My bad. I thought the video was about receivers, not servos.

You are right. If the servos lockout before the receivers, who is testing receivers then?

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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09-04-2009 10:28 PM  8 years agoPost 30
heliaddiction

rrNovice

tenn

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i think the recievers have to lock out the servos just to be able to stay on themselfs but shouldn't the spectrum recievers have a failsafe where you should at least be able to auto down that didn't happen in my case?

Failing to prepare is prepareing to fail.

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09-04-2009 11:04 PM  8 years agoPost 31
jackheli

rrProfessor

Vancouver - Canada

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but shouldn't the spectrum recievers have a failsafe where you should at least be able to auto down
If there is no power there is no fail safe. Think about it.

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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09-05-2009 12:59 AM  8 years agoPost 32
heliaddiction

rrNovice

tenn

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yea your right but i thought that there should be some way to just shut down and be able to auto down still like a low votage thing or something hard to explain in writing.

Failing to prepare is prepareing to fail.

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HelicopterMain Discussion › flybar paddle stickers
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