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01-14-2011 07:10 AM | ||
cicopo |
Re: A little guidance needed Will do. Thanks |
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01-14-2011 06:09 AM | ||
philipa_240sx |
Re: A little guidance needed Quote:
Read the manual for your RX to see what failsafe's it has. |
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01-13-2011 03:32 PM | ||
cicopo |
Re: A little guidance needed Thanks everyone. I've done as instructed & thought it was working as I wanted but then realized I hadn't verified that the motor would shut down if I turn the Tx off so I just checked that & YES it does. I had checked that it didn't start up when signal was lost but I didn't even think about what might happen if the motor was already powered up. NOW for a new thought re loosing signal. Do people program for the rudder to be neutral or should I have a bit of rudder added so the plane tries to circle a bit? |
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01-13-2011 02:19 PM | ||
Flypaper |
Re: A little guidance needed Make sure you set the throttle trim all the way down too. Otherwise when you loose signal the throttle will go to fast idle. It's where you set the throttle at the bind that controls where the throttle sets. If you bind with the throttle stick at half throttle, that's where it will go when you lose signal. This goes for the Spektrum radios. |
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01-11-2011 07:23 AM | ||
cicopo |
Re: A little guidance needed Thanks everyone. I'm pretty sure I understand everything I wanted to know PLUS it's pretty easy to do. I've completed the building & conversion of 2 sailplanes to electric & wouldn't want them to power up & head into outer space should they loose signal. The smaller one will be one of my (re)trainers once spring arrives. It's great having so much help available here, and it's really helping me with important decisions. FYI my day job is total auto restoration, mostly Corvettes, & back in the 60"s I wired telephone offices & then worked in another electrical field which built syncros & servos for the aerospace industry. When I left that field to become a mechanic I built a lot of Heathkit stuff, including my R/C equipment. My next challenge is learning how to repair foam, and I've bought a crashed plane from the classifieds section, and read lots here plus at RC Groups including some contributions by Philipa 240sx that I think will really help with my learning curve. |
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01-11-2011 06:07 AM | ||
philipa_240sx |
Re: A little guidance needed Quote:
Rebind the RX... and make sure the throttle is set to minimum when you do it! |
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01-10-2011 10:27 PM | ||
bobreib |
Re: A little guidance needed With Spektrum receivers you set the tx controls in the position you want as fail safe .. and then re bind the rx .. You should always test a new setup to ensure that the engine ( fuel or electric ) shuts down if the tx is turned off ( simulating loss of control ) As Cicopo said, the easiest way to know how much power you have taken from a battery is to measure how much energy it takes to charge it. All of the better quality charges will tell you how many milliamp hours it took to re charge a battery. |
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01-10-2011 10:19 PM | ||
Kargon |
Re: A little guidance needed Quote:
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01-10-2011 09:45 PM | ||
cicopo |
Re: A little guidance needed I can program a lot of things into the transmitter, which is a Spektrum DX7, but I haven't found anything in the instructions that leads me to think I can program the receiver, which in my opinion is where the signal for RPM comes from when the Tx is turned off to simulate a lost signal. As for a Wattmeter I did buy one & know how to use it, and understand the full relationship between watts / volts / amps. If it's just checking how much power it takes to fully recharge a pack then I should be in good shape there too because I have bought a good charger (triton EQ) but I haven't started using it yet. I'll read the manual carefully to get a grip on understanding how to check (without watching & waiting) what a pack took to return it to "fresh". Thanks for the help. Larry |
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01-10-2011 08:55 PM | ||
Daren71 |
Re: A little guidance needed Quote:
To measure the amount of mah's taken out of a battery, you should use a charger that tells you how much you've put in. A 2200 mah battery flown around for 5 minutes for example takes 1000mah to fully charge it back to peak power, therefore you had 1200mah left over. If you want to measure the power (in watts) of your airplane you need to hook up a watt meter in between the battery and the power system. Did this clear up your questions? If not ask away. Take care, Daren |
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