smacfe

This Kaos is my 9th since my first in 1971 and was built from plans. The fuse/tail is Valspar primer and clear with Jet Glo color. All single stage two part polyurethane and buffed out fully. The pictures really don't show how nicely the paint job came out. Although I dislike plastic film greatly, the wing is Ultracote. No effort was made to keep the weight down, and balanced, the a.u.w. is 6lbs 2oz. I prefer the Kaos to weigh about 6 1/2 lbs so I might put on Kraft wheels which would would look cool and add about 3 1/2 oz. The motor is an OS .61SF with the L carb, muffler is from Dave Shadel at Performance Specialties and the tank is a Tettra 14oz bladder tank. I built this motor from a set of really nice parts and it is a monster - really too much for this airplane. I might put in a nice OS 60FSR which would be a better match for a plane this weight. The modifications to the airframe include wider ailerons, and deepening the fuse by about 1/2" to allow the fillets to fair into the underside of the wing perfectly, and to aid in k.e. This plane does an effortless slow roll from a speck on each horizon! I also moved the firewall back 1/4" and extended the fuse sides forward 3/8" to allow for the longer OS over the original K&B. The deeper fuse with digital servos and a really tight rudder linkage eliminate all tail wiggle as well.

I have not built a wooden airplane in a long time as I build mostly composite pylon racers, so it was really a lot of fun to take a step back. It is also great to have a Kaos to fly again as it is still the greatest R.C. airplane ever designed. I think I am catching the bug to build and fly some of these older pattern airplanes, so the next one on the boards is an Arrow, followed by a Trion and then another woodie, Steve Helm's Checkmate. All are planes I have always really wanted to build, and have been sitting patiently in my kit stash.
Scott

DwightMann

Nice looking plane. I agree with you regarding the weight. I have had a few Koas and they all feel very light

crashlander

My Feedback: (10)

Beautifully finished Kaos. Mine weighs in at 6.5 lbs all up with ST .61, and tricycle gear retracts, aileron servos on each wing.
I may copy your finish scheme if you don't mind for my next one.

Crashlander

8178

My Feedback: (17)

Great job!

BERUSTY

My Feedback: (3)

Caught the bug...!

Super looking airplane! (Seriously, very clean and shiny...not just pandering)

About the Trion...would you consider trading the Trion for another blast from the past or cash?


Rusty Dose
Team Futaba
Team YS Parts and Srvice
Seeking additional classic pattern models...save the Buy Bay fees...call me for an instant answer for your special OPS .61, Trion, Atlas, Curare wood or glass kit.

Have an interest in a glass Tiporare or UFO...NIB box Rossi .61's, Rossi headers, Rossi Pipe, Rossi mixture carbs, Rossi parts...?

smacfe

Rusty,
Thanks for the compliment. I can understand you wanting the Trion kit. It is a good airplane and a fabulous kit. These kits were way ahead of their time and the glass work is unsurpassed. It is a kit I have to build though, and I promise to do it justice. I have an unopened, in-the-bag set of Rhom-Airs for it as well.
scott
Scott

jim52519

My Feedback: (3)

Scott,
Great looking Kaos! I also dislike film coverings, and would rather paint. I have had 3 Kaos's. Two Bridi Super Kaos's w/ST .60 Blueheads in the 70,s. I recently had a Tower Kaos with a Thunder Tiger .46. Seeing your plane makes me want to build one. My Tower Kaos did a terrible knife edge. It pulled to the belly something terrible. I tried a few things to trim it out but had no success. Possible it could be trimmed out but I was unable to get a decent knife edge without holding some elevator. Does your plane show this tendency? From your description it sounds like it does not.

Jim

dhal22

scott, those kraft wheels could have been exchanged for a painted wing and you could have avoided plastic film altogether. [X(]

smacfe

There is no pitch coupling in knife edge, only some roll coupling to rudder. It takes 8% aileron mixing in the same direction to hold k.e., ie. left rudder needs 8% left aileron and right/right. It probably needs a touch more dihedral. Had I known it would come out light, I would have definately used Coverall and paint on the wing. The last one I did like that was when I was a kid and it weighed 7 1/2 lbs, although it did have Rhom-Airs. It still flew well but I was concerned about weight on this one. If I didn't have so much other building to do I would love to make a foam wing and glass and paint it.
Scott

dhal22

at least you have that option still (2nd wing).

TROUBLED 61sf

My Feedback: (1)

YOU HAVE BUILT YOU A FINE BRID I KNOW THE KOAS IS ONE OF MY FAVORITE PLANES TO FLY WITH OR WITHOUT RETRACTS THEY ARE A GREAT BLAST FROM THE PAST THEY SHOULD BE IN EVERY PATTERN FLYERS HANGER