Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

sig Kobra ?

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Old 04-17-2009, 05:48 PM
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Crazy4Flight
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Default sig Kobra ?

I got a Sig Kobra used stuck a Jett .30 BSE in it
it is set up as a tail dragger...

who knows the CG and control throws?
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Old 04-17-2009, 07:11 PM
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Default RE: sig Kobra ?

Got the data from the SIGMFG site.

ailerons +/- 1/4"
elevator +/- 1/4"
Rudder +/- 1"

CG 3 3/8" 3 5/8" MAX
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Old 04-19-2009, 06:00 PM
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MikeL@Sig
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Default RE: sig Kobra ?

Try this link

http://www.sigmfg.com/BuildManuals/SIGRC53Kobra.jpg
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Old 04-20-2009, 07:45 AM
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Crazy4Flight
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Default RE: sig Kobra ?

I got in two flights last saturday...

the cg was 1/2" forward just needed some up trim.

high rate aileron 3/8" produced a good roll rate

high rate elevator 3/8" produced notchy loops, but was usefull on landing considering the CG.

fun little plane to fly
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Old 04-20-2009, 11:25 AM
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combatpigg
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Default RE: sig Kobra ?

Great looking plane! What does the Jett .30 weigh, put out, etc.? Smaller case than the .35?
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Old 04-21-2009, 10:00 AM
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daven
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Default RE: sig Kobra ?

The jett 30 and 35 both use the same case as the 25. My 35 with muff is about 14 oz.

Does look like fun, always wanted to build one of those.
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