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King Kobra

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Old 11-21-2017, 04:23 PM
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mashp39
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Default King Kobra

Has anyone built a Sig King Kobra with the tail modified? I think the Kiwi tail assembly looks a lot better but am concerned about the rudder being not so effective. Anyone have experience with this change or other configuration?
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Old 11-21-2017, 05:38 PM
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Weasel Keeper
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mashp39,

I have not build the King Kobra yet, but i have build a few Kougars. As you probably know, the Kobra, Kougar, and King Kobra are very similar but for size. The little Kobra offers the option of the T-38 or F-16 style tail. My first Kougar was built as designed with the T-38 style tail. However, my second Kougar was built with a swept, F-16 style tail roughly scaled up from a Kobra drawing. I like the swept tail too. To me, the plane flies about the same with either tail configuration. That is to say both fly fantastic!
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Old 11-22-2017, 07:15 AM
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I too have a Kougar and it flies great. It lands very well also. I saw a Sig KIWI with a different tail design from the King Kobra and I will use this design.It is just so difficult to get feedback on kit building now a days.
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Old 11-22-2017, 09:12 AM
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mashp39 is correct. Kit building, thus feedback on that building, is pretty much a thing of the past. There are only a few of us dinosaurs who enjoy building left. I have always said that building is a hobby, flying a sport. I prefer the hobby to the sport. As for this thread, I used to have a King Kobra and it was a fantastic flying airplane. Alas, in a moment of stupidity, I traded it. At some point, if I live long enough, I will have some version of that plane again.
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Old 11-22-2017, 01:03 PM
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I've seen several King Kobras and not one of the pilots even used the rudder. It's a sport airplane, not one for competition.
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Old 11-22-2017, 08:17 PM
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mashp39
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The first plane I built and flew was an S-Ray. It had no ailerons,just a rudder and elevator. My next plane was a Sweet Stik with ailerons.On my first flight I thought what a great thing with the ailerons.From then on very little rudder use.Just taxiing and take off. When I use rudder in flight or landing I usually get in trouble.This statement will get me in trouble with all the rudder users but it's true. This being said,I'll go for looks and change the rudder.If the plane gets to that point I'll post a picture.
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Old 11-22-2017, 08:44 PM
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I have built several Kougars and King Kobras. I have modified the tails twice, as pictured. I did it to try and make the planes look more like the next level of pattern planes...I'm not sure if differences were noticeable. The one pictured is electric powered and converted to a tail dragger with retracts.

Kurt
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Old 11-23-2017, 07:21 AM
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Excellent! This is somewhat I had in mind. The KIWI seems to use the same elevator but the vertical stab comes back with the rudder cut to allow the elevator to move up. Thanks for the picture and info on flight.
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Old 11-23-2017, 09:00 AM
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Steve Collins
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In the jet world, Bob Violet Models offers several of their jets as either a "T-38" style vertical stab version or with a swept vertical stab.

Make that King Kobra look pretty. It won't alter its fine flight performance at all.
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Old 11-23-2017, 04:25 PM
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I managed to take a picture featuring the two different tail styles on my Kougars. Might be helpful.
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Old 11-23-2017, 06:15 PM
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Nice! I like the white canopy trim also.It adds so much to a plane with cockpit detail.
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Old 11-25-2017, 12:40 AM
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That white tail looks like it came off a Cessna 172/182. Nothing wrong with that, just an observation
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Old 11-25-2017, 10:00 AM
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Originally Posted by Hydro Junkie View Post
That white tail looks like it came off a Cessna 172/182. Nothing wrong with that, just an observation
Hydro,

It does look like it could be from a Cessna, but I took it from a Sig Kobra kit. I traced out the Kobra F-16 option and upscaled it till it matched the dimensions of the Kougar. I've always wondered why Sig did not include this option with the Kougar and King Kobra.
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Old 11-25-2017, 11:47 AM
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Originally Posted by Weasel Keeper View Post
Hydro,

It does look like it could be from a Cessna, but I took it from a Sig Kobra kit. I traced out the Kobra F-16 option and upscaled it till it matched the dimensions of the Kougar. I've always wondered why Sig did not include this option with the Kougar and King Kobra.
It's probably one of those mysteries that will never be solved
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