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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Vincent, try to move the remaining good
servos slowly. I have had one which shorted the battery, and therefore the
other servos, at only one position. I was lucky and managed to get it back.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]
<b><span style='font-weight:bold'>On Behalf Of </span></b>vicenterc@comcast.net<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, August 06, 2006 7:52
PM<br>
<b><span style='font-weight:bold'>To:</span></b>
nsrca-discussion@lists.nsrca.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [NSRCA-discussion] Lost
Abbra</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Yes, yesterday afternoon I lost my Abbra. I
was doing the 45 degree down with snap. After the snap, I could not
control the plane. This is my recollection of events:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>1. I over rotated the snap for a kittle more than
90 degrees. It was clear to me at that early stage that something was
going wrong. I snapped to the right. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>2. My friend Charlie was calling for me. He
also noticed and said something to put it back in position. I told
him that the plane was not responding. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>3. First reaction was to give full left to get it back
upright. The ailerons did not respond. When I realized that, I
tried to take it out of the dive by given down elevator since was pracically in
inverted position. It did not respond. It that aptitude everything
goes very fast. Finally, I tried to give up elevator but was already too
late. I am aware that I applied these control input.<span
style='mso-spacerun:yes'> </span>It was clear to me that there was no
reaction.<span style='mso-spacerun:yes'> </span>I was able to realize
that I didn't have control and I could not avoid the crash. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>4. I did not have time to do anything with rudder and
throttle. Throttle was at idle. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>5. When we checked the crash site. One aileron servo
was buzzing hard. I disconnected the servo. Therefore, my first impression
that the battery flew off and it got disconnected with the force of the snap
was not valid.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>6. I took the plane home as it came from the
crash.<span style='mso-spacerun:yes'> </span>I disconnected only the
ailerons servos.<span style='mso-spacerun:yes'> </span>I checked the
radio and everything is working fine. Only two servos are not
working. The throttle servo that was practically destroyed in the crash
and one aileron servo that the gears were stripped.<span
style='mso-spacerun:yes'> </span>I believe that this was caused by the
force of the impact.<span style='mso-spacerun:yes'> </span>There was not
evidence of flutter in the ailerons before the crash or structural damage after
coming out of the snap.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>7.<span style='mso-spacerun:yes'> </span>I
believe that the plane was well over stall speed after the snap.<span
style='mso-spacerun:yes'> </span>Therefore, the plane was not in stalled
condition.<span style='mso-spacerun:yes'> </span>However, I could be
wrong.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>7. I use JR all around with digital servos.
PCM receiver with fail safe programmed to cut engine and leave the servos in
the last commanded position. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>8. I use 2300 mah NiMh battery (4 cells AA
Sanyo). I checked the battery voltage and was at 5.15 volts after the
crash. Discharged the battery and gave 1540 mah using 250mah rate.
I am planning to cycle the battery with higher loads. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>9. It was very hot day. The plane was sitting in
the sun and it was second fly of the day around 2:00 PM. Easily was close
to 100 oF. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>At this point, I have to admit that has to be pilot
error since I have not been able to find a definitive cause of the crash.
It is clear that the snap initiated some kind of failure. Other pilots
think that the NiMh battery gave up at high currents during the snap and caused
the crash. I have been flying this type of battery for two years now with
no problems. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>I am informing this to the group since I would like to
have your feedback.<span style='mso-spacerun:yes'> </span>If someone had
a similar problem and found the cause of the crash, please let me know. I
am going back to my backup plane (the old hydeout). I have a brand new
Abbra so need to put it together. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Thanks and have a nice day,<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Vicente Bortone<o:p></o:p></span></font></p>
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