Pole Star (oz14836)

 

Pole Star (oz14836) by Bill Evans 1991 - plan thumbnail

About this Plan

Pole Star. Radio control sport model.

Quote: "Welcome to the Simitar Squadron and forward to the Twenty-First Century. Yes. we are the fortunate ones. For countless centuries man has looked to the sky with visions of mastering the art of flight; and we, in our time, merely the blink of an eye in terms of man's time on earth, have witnessed astounding progress. Including flight!

From that moment at Kitty Hawk, when it became a reality that man could fly, aircraft development has raged at a staggering pace. Throughout the years, improved performance to fly faster, higher and farther has been the key thrust of those involved with the progress of flight. The performance of the Space Shuttle makes it possible to fly into space and return. The Concorde's performance as the fastest people mover is incredible; and the performance of the SR-71 Blackbird makes it possible to travel from coast to coast in 68 minutes and 26 seconds.

Ever think about it? None of the above have conventional mounted stabs! Why? Because it takes a flying wing type ship to do the job. Wonder why the Wright's didn't use an aft mounted stab?

Many times I have been asked, Why do you fly Simitar Series aircraft? Must be because you designed them. My answer is performance. Yes, performance. First, no stall - reduce power and gradually feed in up elevator and as it slows down the nose will automatically drop a bit, this reduces the angle of attack, therefore, no stall. Next, the wide speed range - no matter how much power you put to a ship of the Simitar Series, it goes faster (no Dutch Roll). It also slows down to a crawl (effect of no-stall) and sets down like a hang glider. Finally a Simitar is directional in flight, in that it will remain in any attitude it is set in. Blip a little left aileron and it will hold in a left turn, barring severe winds it will do 360's, one after the other.

Though Simitars operate on the concept of a flying wing, they don't really look like a flying wing, neither do they appear to be conventional in nature. So, what are they? Aircraft of the Simitar Series! Had enough of the thirty year old state of the rut designs which require constant stick commands and take weeks to assemble countless parts? Need a ship that is new and different? Then maybe you want the new look, easy to build and exciting to fly, advantages of a Simitar!

Join the Simitar Squadron and become a Simitar pilot with a cause and identity. I say identity because of the recognition that all Simitar pilots enjoy; because we are unique and different. Homer Gibson of Ripon, Wisconsin, is a true example of being recognized. Homer is a Simitar pilot, photos of Homer and his Simitars have been seen in the magazines. On his next birthday, Homer will be eighty. He says he doesn't have time to go slow.

Project Pole Star: Development of the Pole Star happened in a week. The thought of a new ship, though ever-present, was not foremost in my thoughts. I was concentrating on getting things in order for the 1990 Clearlake event and finishing a new pusher variant of the Simitar. I decided to mark the pusher with Polish Airforce insignias and was looking through one of my aircraft ID books for the proper Polish markings. As I thumbed through the book Air Warfare I noticed some interesting looking jet fuselage side views, I scanned more pages. An idea began to work on me; how about a Simitar with a jet fighter looking fuselage? Take some F-86, some MIG, some F-104, etc. Move the canopy forward, arc the aft base of the fin, now an outlet at the rear. The wing? Never any doubt, typical Simitar airfoil, sweep the leading edge back an inch. Use the Desparado Sixty wing shortened to a mere fifty inches - now you have it.

The name came easy, since I had referenced the book in search of Polish markings and in that search a new Simitar, came to be, it was obvious, Polish star, ala Pole Star (which can also be Polaris).

Reaction to the Pole Star has all been positive, all like the jet-look of the fuselage, the forward canopy, fin, etc. Wally Mac Alister, of MACS Products, said he needed one, before he saw it finished and covered.

The original was set up with an OS 61 rear exhaust, vertical is outrageous - up out of sight, then straight down to a pull-out on the deck. In the dive the speed is so fast that the ship outruns the prop and the engine goes rich. Matt Arnett, of Lake Isabella, California, had to have one and put a K&B 65 Sportster in his. Flew great, and at quarter throttle, it just putts along. The wide speed range is due to the no-stall advantage of the Scimitar System.

For those who do not cut foam, you may order cores for the Pole Star from Soaring Research..."

Direct submission to Outerzone.

Quote: "Hi there I want to share the Simitar Polestar to outer zone rc plans. The disigner was Bill Evans. I've built the Simitar Classic (oz10190) and Simitar Advantage (oz8132), both excellent models. Regards,"

Supplementary file notes

Article.

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Pole Star (oz14836) by Bill Evans 1991 - model pic

Datafile:
  • (oz14836)
    Pole Star
    by Bill Evans
    from RCMplans (ref:1088)
    March 1991 
    50in span
    IC R/C
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 18/09/2023
    Filesize: 424KB
    Format: • PDFbitmap
    Credit*: Frederick van der Merwe
    Downloads: 424

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User comments

In case anyone is interested, foam wings are available from https://www.eurekaaircraft.com for all the Bill Evans designs. It's a shame, but good foam is not available in my area anymore. All you can get is the "recycled" stuff, where they throw all their scraps into the next batch of foam. This results in little hard lumps that won't cut well. Virgin foam is available 100 miles away but I would have to buy a $250 minimum order, which would just barely fit in my truck. No thanks. Eureka is a reasonable solution. I like my solution also. I drew a new set of ribs with conventional balsa construction. Will send pix when my Simitar Slow Motion is finished soon. Yes I know it's spelled wrong but that's the way Bill spelled it.
doug smith - 30/09/2023
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Scaling

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