<div>Lol, I got you my brother.. Not trying to go there.. haha</div> <div>I would assume that the 110 sized plane won't be light as you or I didn't build it Mike.. lol.. You could probably build a 2M BM and put a foamy motor on it as light as you build.. You'll probably like next months cover pic on the Kfactor. Well, next, uh, well, let's see, the April Kfactor. </div> <div><BR>Chris </div> <div><BR><B><I>Mike Hester <kerlock@comcast.net></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">See what we opened up? LOL<BR><BR>It's just variable and depends on everything....size/weight of the plane, <BR>drag, speed, desired vertical, power demand of the flight and time, you name <BR>it...it matters. It's one thing I really love about glow LOL<BR><BR>The 2 meter stuff is fairly well tested and hashed out....fairly well.....<BR><BR>The 110 sized stuff for what we would do with it is still very much
"in <BR>testing".<BR><BR>Yeah I have tested some stuff, some work, some sorta work....and the one I <BR>settled on was a system that gave me about 2000 watts, 70 amps and is pretty <BR>comfortable with a 19x12 e prop on 8s. Is it overkill? Yep. but I like <BR>overkill, that way I am not stressing the packs too much. When weight <BR>becomes an issue, I just build lighter =)<BR><BR>of course on paper the system I thought would work great ended up with a <BR>motor temp of about 190 deg F. LMAO!!!!! Plenty of power though....<BR><BR>You just have to pick a direction and jump in there and see if it is what <BR>you want. Just be prepared to say "that ain't it".<BR><BR>-Mike<BR><BR>----- Original Message ----- <BR>From: "Ron Van Putte" <VANPUTTE@COX.NET><BR>To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>Sent: Wednesday, March 05, 2008 1:57 PM<BR>Subject: Re: [NSRCA-discussion] Electric Pattern<BR><BR><BR>>I must disagree with Mike here. The "rules of thumb" on
the required<BR>> electric motor power versus weight are: Sport models with virtually<BR>> no aerobatic capability = 50 to 75 watts per pound. For models with<BR>> some aerobatic capability = 100 to 125 watts per pound. For models<BR>> with aggressive aerobatic capability = 175 to 200 watts per pound.<BR>> HOWEVER, these "rules of thumb" are for models weighing less than<BR>> about 5 pounds. There is a scaling factor which most be applied for<BR>> heavier models. For example, an 11 pound airplane would appear to<BR>> require no more than 2200 watts to be aggressively aerobatic, but the<BR>> actual wattage requirement seems to be about 2400 to 2500 watts.<BR>><BR>> One of these days I will sit down and develop the scaling factor, but<BR>> for the time being be aware that the "rules of thumb" come up a bit<BR>> short for airplanes weighing about 11 pounds.<BR>><BR>> Ron Van Putte<BR>><BR>> On Mar 5, 2008, at 12:09 PM, Mike
Hester wrote:<BR>><BR>>> For pattern a good rule of thumb is 150 watts per pound. A better<BR>>> rule of thumb is closer to 200 watts per pound.<BR>>><BR>>> It takes a lot of experimentation to find the right combination,<BR>>> sometimes what looks great on paper doesn't work all that well in<BR>>> application.<BR>>><BR>>> What you're looking for is more than you "need". this way when you<BR>>> push it in bad conditions, you don't burn it all up.<BR>>><BR>>> I have found some very cheap chinese motors that work as good or<BR>>> better than what we can get over here from the more established<BR>>> companies. Some combinations are really cool, especially in the 110<BR>>> range. You're looking for around 1600-2000 watts, motor weight<BR>>> about 500 grams or less, about 250-300kv, and using 8s packs.<BR>>> Lethal =) And fairly inexpensive.<BR>>><BR>>> Then you just
have to figure out whether you want to turn a large<BR>>> prop slow or a small prop fast. Somewhere in there, you hit the<BR>>> magic for the particular plane.<BR>>><BR>>> But if you want "established", the E flight power 110 is ok, and<BR>>> the Axi 4130-20 works. Don't get the -16 turn axi as it won't<BR>>> handle 8 cells and won't deliver quite enough power.<BR>>><BR>>> -Mike<BR>>> ----- Original Message -----<BR>>> From: John Ferrell<BR>>> To: NSRCA Mailing List<BR>>> Sent: Wednesday, March 05, 2008 12:51 PM<BR>>> Subject: Re: [NSRCA-discussion] Electric Pattern<BR>>><BR>>> I am not picking on Incheon here, the questions are to all:<BR>>><BR>>> I too, am struggling to understand how to select appropriate power<BR>>> for a given airplane.<BR>>><BR>>> The specs for the ElectriFly 110 call for up to a 15 pound<BR>>> airplane, It sounds like a lot
of Watts for an 8 pounder.<BR>>> A Phoenix 80 controller also sounds like a lot of over kill. Can I<BR>>> assume that the electrics can just be run at a lower power setting<BR>>> and less batteries without overburdening the airframe?<BR>>><BR>>> Which AXI would be interchangeable with the Electrifly 110?<BR>>><BR>>> Would the Dualsky XM5060CA be an equivalent? The advertising<BR>>> indicates 1:1 correspondence to a YS 110.<BR>>><BR>>> Is the following comment True or False?<BR>>> It seems that an over spec motor and speed control are only a<BR>>> financial mistake. Flying at reduced power levels is not a<BR>>> technical flaw and in fact may provide a more reliable power setup.<BR>>><BR>>> John Ferrell W8CCW<BR>>><BR>>> "All that is necessary for the triumph of evil is for good men to<BR>>> do nothing." -- Edmund Burke<BR>>> http://DixieNC.US<BR>>> -----
Original Message -----<BR>>> From: Ihncheol Park<BR>>> To: NSRCA Mailing List<BR>>> Sent: Monday, March 03, 2008 8:57 PM<BR>>> Subject: Re: [NSRCA-discussion] Electric Pattern<BR>>><BR>>> Jay,<BR>>><BR>>> Lots of power setups available. It all depends on how much you<BR>>> want to put in.<BR>>><BR>>> Hacker A50, E-Flite 110, Axi, BPHobbies, Welgard, Dualsky, Neu,<BR>>> Hyperion, etc.<BR>>><BR>>> For a reasonable price, E-Flite seems to be a good choice with<BR>>> Castle Phx 80 or E-Flite 60 may also work. I went with E-Flite 110<BR>>> for Inspire 90 because I couldn't install the YS110 on it.<BR>>> Hacker, Axi are very good, but I was told these make a little noise<BR>>> during the run. Not sure what that noise is.<BR>>> Hyperion runs really good too.<BR>>> I can look up if I have spec on Focus 110.<BR>>><BR>>>
Ihncheol<BR>>><BR>>><BR>>><BR>>><BR>>><BR>>><BR>>><BR>>> E-mail message checked by Spyware Doctor (5.5.0.178)<BR>>> Database version: 5.09350<BR>>> http://www.pctools.com/spyware-doctor/<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>>><BR>>> E-mail message checked by Spyware Doctor (5.5.0.178)<BR>>> Database version: 5.09350<BR>>> http://www.pctools.com/spyware-doctor/<BR>>><BR>>><BR>>><BR>>><BR>>> E-mail message checked by Spyware Doctor (5.5.0.178)<BR>>> Database version: 5.09350<BR>>> http://www.pctools.com/spyware-doctor/<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<BR>><BR>><BR>><BR>><BR>> E-mail message checked by Spyware Doctor (5.5.0.178)<BR>> Database version: 5.09350<BR>> http://www.pctools.com/spyware-doctor/ <BR><BR><BR><BR><BR><BR>E-mail message checked by Spyware Doctor (5.5.0.178)<BR>Database version: 5.09350<BR>http://www.pctools.com/spyware-doctor/<BR>_______________________________________________<BR>NSRCA-discussion mailing list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR></BLOCKQUOTE><BR><BR><BR><DIV><STRONG><EM><FONT face="comic sans ms" color=#0000bf size=3>Chris </FONT></EM></STRONG></DIV> <DIV> </DIV>
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