<html><body>
<DIV>Hi Chris,</DIV>
<DIV> </DIV>
<DIV>Thanks. The brand is Batteries America. Sanyo model HR-3U. I open and the connections are construction is clean and well done. I am using these batteries in other two planes and I have no indication of problems with the switch. Therefore, at this point I am completely clue less. I flew my YAK 54 after the crash with the same TX and frequency. As we said in Spanish one nail takes care of another nail. I am not sure how to translate in English. </DIV>
<DIV> </DIV>
<DIV>Vicente "Vince" Bortone </DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: Chris Moon <cjm767driver@hotmail.com> <BR><BR>> Sorry about your crash. What kind of battery (brand) did you use? A <BR>> couple of years ago I used ni-mh from Tower. Their Hydrimax brand. I <BR>> almost lost a plane due to the plastic shrink wrap nearly cutting <BR>> through the lead. Luckily I had it fail on the bench and if I wiggled <BR>> the wire, it would work sometimes. I cut off the wrap and was shocked <BR>> at the construction. It used scotch tape to hold the wires and masking <BR>> tape to insulate the tabs from touching. I would check that out and <BR>> also the switch for an intermittant connection.. <BR>> Chris <BR>> <BR>> vicenterc@comcast.net wrote: <BR>> > <BR>> > Yes, yesterday afternoon I lost my Abbra. I was doing the 45 degree <BR>> > down with snap. After the sn
ap, I could not control the plane. This <BR>> > is my recollection of events: <BR>> > <BR>> > <BR>> > <BR>> > 1. I over rotated the snap for a kittle more than 90 degrees. It was <BR>> > clear to me at that early stage that something was going wrong. I <BR>> > snapped to the right. <BR>> > <BR>> > 2. My friend Charlie was calling for me. He also noticed and said <BR>> > something to put it back in position. I told him that the plane was <BR>> > not responding. <BR>> > <BR>> > 3. First reaction was to give full left to get it back upright. The <BR>> > ailerons did not respond. When I realized that, I tried to take it <BR>> > out of the dive by given down elevator since was pracically in <BR>> > inverted position. It did not respond. It that aptitude everything <BR>> > goes very fast. Finally, I tried to give up elevator but was already <BR>> > too late. I am aware that I appli
ed these control input. It was <BR>> > clear to me that there was no reaction. I was able to realize that I <BR>> > didn't have control and I could not avoid the crash. <BR>> > <BR>> > 4. I did not have time to do anything with rudder and throttle. <BR>> > Throttle was at idle. <BR>> > <BR>> > 5. When we checked the crash site. One aileron servo was buzzing <BR>> > hard. I disconnected the servo. Therefore, my first impression that <BR>> > the battery flew off and it got disconnected with the force of the <BR>> > snap was not valid. <BR>> > <BR>> > 6. I took the plane home as it came from the crash. I disconnected <BR>> > only the ailerons servos. I checked the radio and everything is <BR>> > working fine. Only two servos are not working. The throttle servo <BR>> > that was practically destroyed in the crash and one aileron servo that <BR>> > the gears were stripped. I believe that this
was caused by the force <BR>> > of the impact. There was not evidence of flutter in the ailerons <BR>> > before the crash or structural damage after coming out of the snap. <BR>> > <BR>> > 7. I believe that the plane was well over stall speed after the snap. <BR>> > Therefore, the plane was not in stalled condition. However, I could <BR>> > be wrong. <BR>> > <BR>> > 7. I use JR all around with digital servos. PCM receiver with fail <BR>> > safe programmed to cut engine and leave the servos in the last <BR>> > commanded position. <BR>> > <BR>> > 8. I use 2300 mah NiMh battery (4 cells AA Sanyo). I checked the <BR>> > battery voltage and was at 5.15 volts after the crash. Discharged the <BR>> > battery and gave 1540 mah using 250mah rate. I am planning to cycle <BR>> > the battery with higher loads. <BR>> > <BR>> > 9. It was very hot day. The plane was sitting in the sun and it was <
BR>> > second fly of the day around 2:00 PM. Easily was close to 100 oF. <BR>> > <BR>> > <BR>> > <BR>> > At this point, I have to admit that has to be pilot error since I have <BR>> > not been able to find a definitive cause of the crash. It is clear <BR>> > that the snap initiated some kind of failure. Other pilots think that <BR>> > the NiMh battery gave up at high currents during the snap and caused <BR>> > the crash. I have been flying this type of battery for two years now <BR>> > with no problems. <BR>> > <BR>> > <BR>> > <BR>> > I am informing this to the group since I would like to have your <BR>> > feedback. If someone had a similar problem and found the cause of the <BR>> > crash, please let me know. I am going back to my backup plane (the <BR>> > old hydeout). I have a brand new Abbra so need to put it together. <BR>> > <BR>> > <BR>> > <BR>> > Than
ks and have a nice day, <BR>> > <BR>> > <BR>> > <BR>> > Vicente Bortone <BR>> > <BR>> > ------------------------------------------------------------------------ <BR>> > <BR>> > _______________________________________________ <BR>> > NSRCA-discussion mailing list <BR>> > NSRCA-discussion@lists.nsrca.org <BR>> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion <BR>> <BR>> _______________________________________________ <BR>> NSRCA-discussion mailing list <BR>> NSRCA-discussion@lists.nsrca.org <BR>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion </BLOCKQUOTE></body></html>