Sig Kobra Conversion??
Hi All
I'm in the process of building the Sig Kobra.. I would like to convert it into an electric plane..I've been getting some power system information on E Zone..I was just wondering what you guys would recomend.. I do have 2 E-planes under my belt,both were kits designed for E flight.The Kobra will my first conversion. Here are Sigs Spec: weight 41oz/WS 45"/Wing Area 390sq. in./Wing Loading 19oz/sq.ft...The plane was designed for a 19-32 c. in. 2 stroke. I've been looking lately at the Hyperion Motor 3019/10 and the 3025's..Here's the link..http://www.allerc.com/z3019spec.htm. I've also looked at the AXI 2820's and 2826's plus the Hacker's a30's.. Please when you get a chance let me know what you think.. I'm not into 3D or need a rocket ship. Thanks Dan |
RE: Sig Kobra Conversion??
opps wing loadiong should have read 19oz. sq.ft.
Also with the trike gear 11" prop seems to be max. Thanks Dan |
RE: Sig Kobra Conversion??
Hi, you are probably on to another plane by now, thought I would add some thoughts. Did a conversion of my Kobra last year, it was a 30 os max flew great but I sold all my gas and only fly electric now, here is the set-up. AXI 2820-10 using TP 6 lipo-2100's, castle c. 45
foam wheels.Weighs in at 3.25 lbs. I lengthened the nose 2.5 inches for better balance and now looks more "F-5" like, really has good power with a 10-7 prop and full charge. 8 min flights, smooth landings, now if I only had retracts! COBRA7 |
RE: Sig Kobra Conversion??
Hi Cobra7 I'm still working on the Kobra..I'm into the covering stages right now..This is my 3rd E plane.. My power system for the Kobra, Hyperion Z3025/08,Titan 50bec/ESC,Hyperion 3s2p4200, with a APC e prop 10x7 getting 430 watts at WOT, with a 10x5 350 watts at WOT.
My Kobra weight was a little over 3 pounds before covering..Did you use a TP 3s2p4200 for your battery??Also made my Kobra into a tail dragger.. |
How did your conversation turn out. I’m thinking to do the same thing, but l have the bigger Kobra I’m on the fence to go all electric. Glow fuel prices are going crazy. |
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