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Old Feb 18, 2015, 06:52 PM
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For a warmliner setup I'd probably use a 4S battery and maybe downsize the prop a bit if needed.

Lenny
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Old Feb 18, 2015, 11:57 PM
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Why would you test it with a pack that only has a 50% charge? Do you typically fly that way, only charging the pack to 50%?
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Old Feb 19, 2015, 06:57 AM
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No, I was trying to see what the average output would be for the flight.
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Old Feb 19, 2015, 08:47 AM
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Oh, I see. Interesting approach. I would not have thought of that based on how I use my battery packs in e-gliders in competition.

Normally I only get one launch per pack per contest round. After I land the battery comes out, goes on a charger and I put in a fresh one. In a contest I am always launching on a full pack, so that is what I use to measure.

I use about 400 mah per launch and 10 minute flight, so about 30% of a 1300 or 50% of an 850 pack. During those launches my average charge state would be between 75 and 85% full charge status, approximately.
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Old Feb 19, 2015, 09:43 AM
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Yeah, I'm not flying competition with the Nike 2. I have thought about getting into F5J but it's typically too windy here to have good thermaling conditions. So my flights will be go up, glide down, repeat.

I also found the 840 kv motor on one of the ecalc's whereas I was only able to find the 1120 kv before and I need to track down where I was. The interesting thing is that it did say I would be stalling the prop at full throttle in a static position so I may be able to get much more power than what I'm measuring. The YEP doesn't have data logging. If I got into F5J, I'd probably look into one of the Castle ESC's to be able to down load the logs and tune my performance.
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Old Feb 19, 2015, 11:07 AM
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Thanks Ben. Understood. Since this is the Electric competition forum I expected that everyone posting in the discussion was flying and tuning for competition.
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Old Feb 21, 2015, 12:39 PM
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Romania, Dolj, Craiova
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Quote:
Originally Posted by aeajr View Post
These are not part of the Gliderdrive family of motors but it they might fit some similar applications. These are inrunners.

Turnigy 540L V-Spec Inrunner - 36 mm
I had not seen this motor before. Looks like a nice fit for an e-glider.
http://www.hobbyking.com/hobbyking/s...idproduct=9449
...
Being inrunners they don't need clearance for the spinning can.
I own the 540 and some warnings:
- weight on site is wrong, it is much heavier 186 grams or so
- the shaft is not round, but beveled, most collet spinners can't grip
- the most horrible cogging I seen... very hard to control RPM under 25% throttle. Works fine on a switch, though.
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Last edited by renatoa; Feb 21, 2015 at 01:59 PM.
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Old Feb 21, 2015, 12:42 PM
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Good to know. I was not aware of any of that. Really appreciate the info.

I presume you could file a flat spot on the shaft so a set screw spinner could hold.
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