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Hirobo Embla - SRB Quark - Lepton
› motor and esc for Lepton
01-28-2007 05:49 PM  10 years agoPost 1
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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Just picked up a Lepton, and was wondering who had the Kontroniks
Kora 15-14 and 80 amp ESC in stock. I checked a couple places, and they were out.

Thanks
Bob

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01-28-2007 06:53 PM  10 years agoPost 2
dialtone

rrApprentice

Ontario- Canada

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Hiya JeepCJ

I purchased my Kora 15-14 at a hobby shop in Germany. http://www.lipoly.de/index.php?main...dex&language=en

Can't rememder his name but he shipped it by airmail instead of courier and removed the Vat taxes, it costs me less then $100 euro in my mailbox(best part it was here in less then 7 working days).
As far as the ESC i went with the Jeti Spin 55 +proramming box from Mscomposit USA in Indiana i think. Very happy with both vendors and the Jeti is 1 awesome esc. I am running a 100% throttle curve with headspeed of 3040rpm on my Leppy with the 24t pinion.

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01-28-2007 07:07 PM  10 years agoPost 3
JeepCJ

rrKey Veteran

Pennellville NY (Syracuse Heli Group)

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Does the spin require a seperate BEC? and a 55 is big enough?
(sorry, this is my first foray into this size electrics)

Thanks
Bob

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01-28-2007 07:22 PM  10 years agoPost 4
dialtone

rrApprentice

Ontario- Canada

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The Jeti Spin 55 and 66 both have a "switching power supply" 3amp constant 5 amp peak rating Built in BEC. I am using the 55 and max amps that i pull is between 45-55A. If i go 5s setup i might get the 66, but for my 4s setup the 55 works perfect. As far a specs go, it says you can run up to 8 servos on the internal BEC. I am running 4 digi servos with no problem and temps are low on all electronics.
But please don't think i know alot,please research for own piece of mind! I have gotten 9+ mins flight time, but going over the 80% discharge value of my lipos ie: adding 3500mah into a 3700mah lipo(not good)dialed back to between 6-7 min flight times to save battery over discharging. One more thing" The Lepton is a rocket"

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01-28-2007 09:37 PM  10 years agoPost 5
Larry

rrApprentice

SE Florida

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how is the kora on 4s vs the hyperion/hacker on 4s?

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01-28-2007 10:17 PM  10 years agoPost 6
Tool Man Vegas

rrApprentice

Las Vegas, Nevada, U.S.A

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i got both the kora 15-14 and kontronic 80 amp at Readyheli.
check it out. they go in and out of stock quick.
Darth Heli

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01-28-2007 10:40 PM  10 years agoPost 7
dialtone

rrApprentice

Ontario- Canada

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I have both motors, the Hacker is the A30-10XL(900kv) and the Kora 15-14(790kv)I found that the hacker had lots of power, but had to roll back throttle curve due to 3300+ rpm(ran around 65-70% Thr.Curve to get it back to 2800 or so)Also the Hacker weight is 177 grams. and the Kora is 150 grams, which took 27 grams of weight off aft of the main shaft for better CG. The Kora is a very powerful motor and the integrated fan keeps it kool. The Kora also seems to work smoother and more torque in Governor mode then the Hacker, but could be due to lower throttle curves with the Hacker. With the Kora i am running a 95-100% throttle curve now. I am using a Jeti Spin 55 ESC and the programming box which means tweaking almost all variables. Average Main blade rpm is now 2880-3040. Mininum amp draw is 35,,Maximum amp draw is 58 and everything is warm to the touch,,(of course outside winter temps are in the 20's up here in Canada)

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01-30-2007 12:20 AM  10 years agoPost 8
Fred I

rrApprentice

Irvine, CA

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try this one: http://www.icare-rc.com/kontronik.htm
they're out of canada.

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Hirobo Embla - SRB Quark - Lepton
› motor and esc for Lepton
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