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Old 06-26-2006 | 07:57 PM
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fancman
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From: N. Charleston, SC
Default RE: The lost of my Tempest ...........

In my humble opinion you made many mistakes in the charging and care of your batteries. I've seen it time and time again where guys think they have to charge their batteries after every couple flights and somehow these same gentleman are the ones who really haven't taken the time to find out anything at all about batteries at all. They have no idea of what the discharge curve of a Nicad or Nimh battery looks like and no concept of how to properly maintain a battery. The internet is full of information for anyone who will take the time to look up everything there is to know about care and feeding of batteries. Before you invest in another plane I would suggest you avail yourself of the vast wealth of information that costs nothing but a little of your time.

On another note I'm sure you will be advised somewhere along the line to switch to LIPO's and to use regulators. That's not the solution either. Throwing a more expensive battery in your airplane is not the solution. You should have been able to fly at least 8 seven minute flights on that 1000mah battery if it had been properly slow charged the night before. You leave out a lot of detals about the complete life of that battery, without which nobody can really say what the problem could have really been. Lack of education is very expensive isn't it??? That was a beautiful airplane. [&o] [&o] []

Good luck in your future Pattern Planes



[/quote]

Good luck in your future Pattern Planes
ORIGINAL: HuaChu

The tragedy happened to my 1st 2m plane ,Tempest ( named as Wizard), on last saturday morning.
As an novice of the pattern flying, I was wonder using 1100 mA NiCD battery for 5 Futaba standard high torque servos and one S148 is a bit risky. However, I did not do a good job regards that concerns. It was happening during the 3rd fly of that morning. Each of previous 2 flying time is 7 minutes. I use Quick field charger charging 10 minutes between each fly, and check the voltgage with voltmeter and make sure it is in the green zone before taking off. But, the 3rd fly last only one minute, and I totally lost the control over the plane. It went straight down and disappered in the swamp area around the flying field. I was shocked and my heart went down with the plane.. I tried to retrieve the plane after that, but all in vain.

I made such a huge ......... mistake about the battery and the charging procedure, which caused my fortune. I guess, 1st, the quick charging burned the battery. 2nd, Even thought the voltmeter shown the voltage is in the green zone, it does not mean it has enough power to fly.
.........................
Please give me your best comments and suggestions. I lost my best plane (biggest and most $$$ ever to me) already, but I don't want to loose any other plane in the future. Thanks !
Here is the Wizard in my memory only.