Tri-Star (oz13030)


Tri-Star (oz13030) by LeRoy Satterlee from SIG 1994 - plan thumbnail

About this Plan

Tri-Star. Radio control sport canard model. Wingspan 47-1/2 in, wing area 420 sq in. For glow, slope or electric. Recommended power .09 to .15 2-stroke engine or 05 can motor for electric.

Discontinued kit from SIG.

Note this is a (very) low resolution scan, at 40 dpi in greyscale. The scan is also cropped and some detail has been lost along the bottom edge. If we can replace this at some point with a clearer and more complete scan, that would be great.

Direct submission to Outerzone.

As requested on the wanted page.

Added instructions pdf. This was found on the excellent Sig History site at where there is a link to the file on Dropbox. The Instructions are in total 33 pages. These are very detailed with many build pics, and also include some parts templates along with a useful page showing parts ID drawings.

Quote: "ELECTRIC: In the larger metropolitan areas, finding, and keeping, flying sites is getting more and more difficult. Housing development, noise regulations, sports complexes, all fuel the battle for use of available recreational space. An electric Tri-Star can be flown in any local schoolyard or park (be sure to check your local regulations) without most people even knowing it's there. Performance of any electric airplane is the result of careful matching of the battery/motor/propeller combination. Feel free to use any combination you choose, or, SIG MFG. can offer you a tested electric drive system combination. This is packaged as a "Sig Electric Hight Accessory Pack." and will be available through your authorized SIG dealer.

CANARD: Canards have a unique look that can be distinguished from anything else in the sky, and contrary to some stories, are quite stable. They resist stalling more than other aircraft designs, but are still quite aerobatic.

LASER CUTTING: Laser cutting offers some wonderful advances for model designers, and model builders. Wherever it was practical we employed laser cutting in this kit. You will find some saw cut parts in the kit. Saw cutting is used where economics makes better sense to do so. The accuracy of laser cutting, when compared to traditional die cutting, allows you to build a straighter model the first time. Most parts require very little - if any - sanding but it is best if you lightly sand away the blackened edge on the ply parts for better glue adhesion. Laser cutting means less work for you, and better quality control for us.

GLOW POWER: Tri-Star makes a delightful glow powered airplane, and has been tested with engines in the .09 to .15 sizes. There are some engine size limitations however. ENGINES LARGER THAN .15 SIZE ARE NOT RECOMMENDED for Tri-Star. The additional weight added to the rear of the airplane can cause a very tail heavy and unstable aircraft. For the safety of yourself, and others. Resist the temptation to install a .40, or even a .25 in your Tri Star. Remember, Nose heavy airplanes may fly poorly, But, tail heavy airplanes seldom fly at all.

PROPELLERS: Pusher props are available from a number of manufacturers in sizes compatible with the recommended glow engine sizes. Sig Manufacturing carries a good stock of props in these sizes, so ask your Sig dealer to get them for you, or if you have no Sig dealer near you, you may order directly from us. Pusher props for electrics are easier. All test work on the Tri-Star was done using Tractor props, with the direction of rotation of the electric motors reversed.

SLOPE SOARING: If you are not into powered flight of any kind, but are hooked on the wonderful sport of slope soaring, we've thought of you too. Tri-Star makes a nifty slope soarer which is very light, and can be flown in light winds. The unique plastic belly pan provides an excellent spot for the addition of ballast for those windier days, so now, you can fly no matter how hard the wind blows.

RADIO EQUIPMENT: The Tri-Star requires a two, or three channel radio system, depending on the version you choose to build. Both powered versions require elevator, aileron, and throttle. The slope soaring version requires elevator and aileron only. There are no fancy mixers required, and Tri-Star is designed to accept standard size components..."

Supplementary file notes

Instructions (note large filesize 16MB).


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Tri-Star (oz13030) by LeRoy Satterlee from SIG 1994 - model pic

  • (oz13030)
    by LeRoy Satterlee
    from SIG (ref:RC-70)
    47in span
    IC Electric R/C Pusher Kit
    formers unchecked
  • Submitted: 30/04/2021
    Filesize: 1370KB
    Format: • PDFbitmap
    Credit*: JeffGreen

Tri-Star (oz13030) by LeRoy Satterlee from SIG 1994 - pic 003.jpg
Tri-Star (oz13030) by LeRoy Satterlee from SIG 1994 - pic 004.jpg

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User comments

THX for sharing LeRoy Satterlee
Doro - 17/05/2021
LeRoy has since left this earth for the big kite in the sky. But I have one of the original kits that he used for prototyping.
I flew with LeRoy many times in the gym at Hudson, IA. He also reviewed my kits for Fly RC and I was proud to know him.
Other News: SIG has been purchased by a couple of investors and they are putting money back into the company - so SIG is coming back to life! Maybe we can talk them in to making this a kit again!
Don Rosendale - 19/05/2021
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