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Old Feb 09, 2016, 09:52 PM
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DD, the stats on that motor say it is maxed out on 3 cells at 375 watts. Is your set up surviving a 4 cell, 35 amp esc because you only use it for short bursts?
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Old Feb 09, 2016, 10:13 PM
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Yes, 3~4 seconds is all you need. The motor doesn't even get warm. The Kunai weighs so little it accelerates very fast on 4s and 9x7 lol. It will get pretty far in a half dozen seconds.

Since the burst rating on a Talon 35 is over 50A, it too doesn't notice the power jump. The whole system is balanced for the type of flying the Kunai is made for.
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Old Feb 09, 2016, 10:52 PM
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The Hyperion and Cobra motors have been running flawlessly at these high burst power loads. The Kunai gets on deck fast enough to let the prop unload and that helps drop the current the last second or two. By that time you're up to where you cut off.

With the Cobra 2221-12 and 9x7 on board it starts the climb at 550w and within a second is up on deck, the prop bites and you accelerate forward with the prop starting to unload, reaching 460w avg. power at full speed going straight up verticle.

The power can be felt, it's like being sling shot.
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Old Feb 09, 2016, 11:20 PM
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Sorry for being long winded.
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Old Yesterday, 06:13 AM
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Speaking of the CC Talon ESC's, I wonder if its possible to make up a small male servo pigtail to tie into the ESC's servo connector and have it available to plug into CC's programmer card to read the ESC data of a couple of flights with having to pull the wings to unplug the ESC servo lead of the Kunai each time to access the original one? I could tie a small piece of string to it, tape the string to the side of the fuse at the lateral air exit holes of the fuse.
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Old Yesterday, 10:51 AM
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Sounds like you could cut the ESC radio lead in half, where there is enough length to plug it back into the portion going back to the Rx, and also long enough to plug in, say a 12in extension to use for the program card.

Curious, what do you mean by reading a few flight's data off the Talon? All my data is gathered using a stripped-down Edge50 ESC that has data logging. Once we have the power reading from several flights it is then I swap out the Edge50 for the lighter Talon35.

The Edge50 weighs am extra ounce so in fact, the Kunai is faster with the Talon35 onboard since all the data is at a higher weight.......but seriously, a 550w Kunai at 25oz most likely flies the same as a 24oz one.... Just Plain Naughty.
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Old Yesterday, 01:50 PM
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Is this a good deal? (free shipping)

GREAT PLANES Kunai 1.4M EP Sport Glider ARF w/Motor GPMA1815
http://www.walmart.com/ip/GREAT-PLAN...mnopqrstuvwxyz
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Old Yesterday, 04:36 PM
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Ya, that's pretty good.

$129.99 is normal and there isn't always free S&H.
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Old Yesterday, 10:26 PM
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Well.. tomorrow is the first flight on this plane. LOL. Also, the first time using a Jeti DS-16 radio. Should be interesting. I basically programmed three flight modes..

- Low Rates (about 50%) of the recommended throws in the manual, with some expo

- High Rates (about what the manual says max.), with some expo

- Landing - motor is cut, and ailerons come up (spoil the lift)

I had also added a Aileron to rudder mix to a free switch to help with turns, and to make some things easy (I hope).

I don't really have any expectations, just hope I can control it okay and that it does not crash! I have the CG right at 70mm.
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Old Yesterday, 11:04 PM
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Good luck and share your thoughts.
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Old Today, 05:45 AM
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Weird.. The ESC needs the throttle above 50% to arm. Then, works as normal?
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Old Today, 06:27 AM
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Isnt that normal for the ESC that comes with the RR model? Think its a safety feature built into the ESC programming. Throttle up, then down and then it arms? Maybe it needs it end points cailbrated? Check the manual.
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Old Today, 06:58 AM
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The stock ESC requires you to go through the same startup routine Every battery change. This is a "safety"...aka annoying feature that assures the motor does not power up when the battery is plugged in, pretty much think of it as the ESC does not remember endpoints, which is another word for basic/linear BEC Elcheepo stock ESC.

Down throttle
Plug in battery and hear beep or beeps
Full up throttle and beep
Full down throttle and final setup chime
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