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<DIV>Richard / Orland,</DIV>
<DIV> </DIV>
<DIV>I've posted a fair bit of stuff on RCU in various threads (I'd link them, but I'm not the most organized with RCU stuff). The A60-20S is the highest KV (245) of the A60-S series and cranks the highest RPM. My objective was an electric that did not sacrifice airspeed, so I went with the higher KV and smaller diameter higher pitch props.</DIV>
<DIV> </DIV>
<DIV>Hacker A60-20S</DIV>
<DIV>Castle Creations Phoenix 85HV (software version 1.53, high advance)</DIV>
<DIV>Thunder Power 10s4p 5300s</DIV>
<DIV>APC 18x10PN repitched to 12</DIV>
<DIV>~75 amps (lipos at 100F)</DIV>
<DIV>~7800 RPM (lipos at 100F)</DIV>
<DIV>Plane is a Prestige, with very good cooling ductwork, and hit the scales at the NATs at 10 lbs even.</DIV>
<DIV> </DIV>
<DIV>Flying PO7 at 165-170 meters with large maneuvers is about 9 minutes takeoff roll to touchdown. 3800 mah in calm/light winds, maybe as much as 4300 in heavy wind. On 80F day, at the end of a flight, I typically see ~90F on ESC, ~130F on motor, and around 120-125F on lipos.</DIV>
<DIV> </DIV>
<DIV>My oldest A60 has 214 flights to date. Oldest 5300 has 138 cycles and might be down a couple percent compared to a 40 cycle 5300. Knock on wood, no maintenance needed yet on any of the electric components, and no servo wear yet either.</DIV>
<DIV> </DIV>
<DIV>My setup in the prelims at the NATs was similar - but less power - APC 18x11 at about 7700 RPM, 68 amps, ~3500 mah for PO7, and lipos were about 110-115F (and ambient was 85-90F).</DIV>
<DIV> </DIV>
<DIV>The new TP Extremes will boost the power a bit more - I have a few flights on the 3850s (same power as 5300s and 5.5 oz lighter) and the 4600s (+10% amps and maybe +200 RPM). If you want a slower flight style, a 19x10E does that, but is a few amps more (maybe 80 amps).</DIV>
<DIV> </DIV>
<DIV>I have talked quite a bit with Sean Plummer at Hacker USA about using the motor for pattern, and he is aware of the higher amps needed for pattern compared to the spec for the motor. I'm not sure why the motor is spec'd so low, but with proper cooling in a pattern plane, temps are not an issue at 75 amps. I have run the motor up to 95 amps and it didn't get much warmer, but I was being fairly careful with the throttle.</DIV>
<DIV> </DIV>
<DIV>Hope this helps!</DIV>
<DIV> </DIV>
<DIV>Dave Lockhart</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Richard Strickland" <richard.s@allied-callaway.com> <BR><DEFANGED_META content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<META content="MSHTML 6.00.2800.1561" name=GENERATOR>
<DIV><SPAN class=468560921-30102006><FONT face=Arial color=#0000ff size=2>How's it working and what props? Amp draw, batt life--all that neat stuff?!</FONT></SPAN></DIV>
<DIV><SPAN class=468560921-30102006><FONT face=Arial color=#0000ff size=2>RS</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>Chris Moon<BR><B>Sent:</B> Monday, October 30, 2006 3:01 PM<BR><B>To:</B> NSRCA Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] NSRCA-discussion Digest, Vol 11, Issue 244<BR><BR></FONT></DIV>Me too!<BR><BR>Chris<BR><BR>Dean Pappas wrote:
<BLOCKQUOTE cite=midEE17DCCB005C1B4EBCE4863113BB25D701771971@kcnt4.kodeos.com type="cite"><DEFANGED_META content="text/html; " http-equiv="Content-Type"><DEFANGED_META content="MSHTML 6.00.2900.2963" name="GENERATOR">
<DIV><SPAN class=463535920-30102006><FONT face=Arial color=#0000ff size=2>That would be Dave Lockhart.</FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT face="Times New Roman">Kodeos Communications</FONT> <BR><FONT face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT face="Times New Roman"><A class=moz-txt-link-abbreviated href="mailto:d.pappas@kodeos.com">d.pappas@kodeos.com</A></FONT> </P>
<BLOCKQUOTE dir=ltr DEFANGED_STYLE="margin-right: 0px;">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> <A class=moz-txt-link-abbreviated href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A> [<A class=moz-txt-link-freetext href="mailto:nsrca-discussion-bounces@lists.nsrca.org">mailto:nsrca-discussion-bounces@lists.nsrca.org</A>]<B>On Behalf Of </B><A class=moz-txt-link-abbreviated href="mailto:oorland55@netzero.net">oorland55@netzero.net</A><BR><B>Sent:</B> Monday, October 30, 2006 3:49 PM<BR><B>To:</B> <A class=moz-txt-link-abbreviated href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A><BR><B>Subject:</B> Re: [NSRCA-discussion] NSRCA-discussion Digest, Vol 11, Issue 244<BR><BR></FONT></DIV>
<P>Has anyone tried a Hacker A60-20 S in a pattern plane and if so what were the results.</P>
<P> Orland</P></BLOCKQUOTE><PRE wrap=""><HR width="90%" SIZE=4>
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