View Full Version : Want to convert Kangke Laser 2000 to E-Power
12-27-2005, 06:20 AM
Hi all, I would like to convert my Kangke Laser 2000 to electric. The total weight without the engine and tank is 14lbs. Any help to where to start would be great! TIA!
12-27-2005, 02:37 PM
There are a couple of avenues you could go.
First, most power system consisting of motor, ESC, and battery will come in around 2.5 to 3 lbs. That puts you right around 17lbs. On a Laser 2000, I would look at 1700-2000 watts as it needs good verticle and aerobatic performance. @ 2000 watts you will have about 115 watts/lb
For an outrunner, I like to recommend two. The first is the Cyclon (http://www.atlantahobby.com/shopexd.asp?id=5650) from www.atlantahobby.com. A very good motor and worth every penny. I run two of these in tandem on my 87" Yak-54.
The other is an AXI 5330/18 (http://hobby-lobby.com/brushless-axi5330.htm).
Both of these are good on a 10S pack @ 60a which will give ~2100 watts in while keeping everything cool. Both motors can be pushed a bit harder if need be. I push the Cyclon around 85 amps and it doesnt break a sweat.
For battery's.....I am a Thunderpower fan and a 10S2P 4000mah pack would suite this fine at 60 amps. If you wanted to push it above 60 amps you would need a 10S3P. The TP packs are 10-12c continuous and easily burst to 15C.
Having said that I am a TP fan, I have to say I have been impressed with the balancepro series from FMA (http://www.fmadirect.com/detail.htm?item=2037§ion=38). I am playing with a 6S now and experimenting with the 3C charge rates. 3C peaks a pack in less than 30 minutes with a 90%charge in 20. The packs are rated at 20C. However I have not tested them at this level and like to run no more than 15c bursts. So at 60 amps, I would still recommend a 10S2P or two 5S2P hooked up in series via a harness to form the 10S2P.
On the Speed controller:
Either a Jeti 90 or the Castlecreations 85HV will work fine in either of these scenarios.
12-27-2005, 11:30 PM
On my QuiQue 72' Yak 54, I used the AXI 5320/18 and Dymond Modelsports 8s-2P for 6000 MAH. Jeti 90 AMP Opto speed control with a FMA Powerforce Voltage regulator and a 1500 MAH pack for the receiver. Drew 41 Amps swinging an APC 19/8 E Prop. Weight was 10 Lbs 8 oz. ready to fly.
I lost the plane when sombody turned on and shot the plane down on the maiden flight. But in the 4.5 minutes it was in the air, it performed admirably. Just a bit shy on the vertical.
Was planning on going to 9S-2P 6000MAH and up the prop to a 20 inch. to give a bit more vertical and it would have been a good IMAC plane. Not into 3D, but have seen videos of the same plane doing every 3D manuever in the book (Quique Sominzini flying) and it was electric as well.
I have another NIB and plan on having it ready in February. Still collecting the components to get it in the air.
12-29-2005, 07:05 AM
Thanks for all the info. Now I have somewhere to start.
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