I'm putting togehter the Tower Kaos. I plan on using a Thunder Tiger F-54S. It's just a tad bigger than the recommended. Do you think it is to big for this plane. Appreciate any opinions.
Thanks
chopper man

It should be ok. I had an evo 46 with a 11x6 prop in mine. and it was pretty quick. The 54 is a four stroke and usually you want to go up in cu. in. when dropping in a 4 stroke.

I think you'll like the combination, a Thunder Tiger F-54s should be a very good match.

YOu should be pleased with that combo. Check your CG. I ran a Rossi 40 with a pipe and I really loved the aircraft flight performance. The coverening was another story altogether. Let us know how that works out. On My Kaos, even after following the directions by sealing the covering before the build, I had to use trim sheets on the seams of the covering. The pinstrips all came off after about 5 flights. The wing began to lose covering shortly thereafter. The horizonal stab came undone in flight.

I complained and Tower sent me trimsheets and pin stripes. I really loved that plane. I lost it when my radio locked out while making a turn into my downwind leg. it probably would have come out fine it it hadn't hit a lone fence post in the middle of the field just before hitting the ground.

Maybe I'll get another.

Thanks for the input. I'm just about finished with the wing portion of the build. The covering job seemed ok. I will most likely go over the trim with some clear dope. That has seemed to work well in the past with other arf's. I'll let you know how it turns out.
Thanks again.

chopper man

[8D]I have a Magnum .52FS on my Kaos, and it is a good combination for power; however, the extra weight caused the plane to be nose heavy requiring using an old AA nicad in the tail as a weight. Also the throttle cable is set up for a two stroke and required considerable effort to reroute. If I were doing it again I would use a .45 to .51 two stroke. I had a kit built Kaos with a .47 on it years ago and it was a fine combination.

Mike H.

Kojak41, Your Magnum XL .52 RFS, like the Thunder Tiger F-54s, should actually weigh less than a typical .46 2-stroke ball-bearing engine. Your Magnum XL .52 RFS only weighs 15.7 ounces, the TT F-54s weighs 15.2 ounces, where as the O.S. .46 AX weighs 17.2 ounces. This weight is typical of most .46 2-strokes - Magnum XLS .46A 16.0 ounces, Thunder Tiger Pro .46 17.0 ounces, Super Tiger G-45 18.5 ounces, GMS .47 16.75 ounces, Tower Hobbies .46 16.9 ounces.

If your Kaos was nose heavy with a Magnum XL .52 RFS on the nose, you would have needed a plain-bearing engine like the O.S. .46 LA or the Thunder Tiger GP-42 to allow you to mount the flight pack battery in a forward position. A ball-bearing 2-stroke from most of the available manufacturers would have thrown off the balance even more.

Also Kojak41, you mentioned all of the problems you had re-routing your throttle linkage. The carburator on your Magnum XL .52 RFS (as with most 4-strokes) is reversable, you can rotate it 180 degrees so the throttle arm is on whichever side of the engine that will work best for you. You spent a lot of effort rerouting your throttle linkage when you could have simply turned two small screws and flipped your carburator around.

Because 4-stroke engines have rear-mounted carburators while 2-strokes have front-mounted carburators, you may have to run the throttle pushrod past the throttle arm and then simply put a "u-bend" in the rod to turn it back toward the throttle arm. This will allow you to use the throttle linkage included with the ARF without cutting off the end of the control arm too short and creating a binding problem with the throttle control arm at the firewall.

In any event, chopper man, good luck and good shopping!

[8D]Reversing the throttle and the U bend is an interesting idea. I am putting another Magnum .52FS in an Explorer L that is designed for a two stroke and I will look into that option. The Tower Kaos ARF has a metal engine mount and the throttle of a 4 stroke will not fit without considerable grinding. Anything can be done, but I think that putting a 4 stroke in a Tower Kaos is not something I will do again. I have a second one on the bench at the current time and either a ST .51 or an MVVS .45 will be in the nose.

Mike H.

Im flying a TH Kaos with OS 46 AX and it goes like hell, excellent plane, no problems with covering or hardware, it's a good purchase, I just order a tuned pipe for this engine, i'll let you know what happen.

I think you'll be underpowered with that engine. I've have the Tower Kaos 40 (from a kit) and the Tower 60 Kaos for about 11-years. I'd go with a .45 two stroke or larger. For a while I had the K&B Twist Head .61 (14.2 oz) in the plane (w/ tuned pipe) and it was really amazing.

The new OS AX .55 would be a great choice as would a ST .51 and others...

Glad to have the input regarding the engine. Like I said I have the TT 4 stroke that I plane on using. I haven't gotten to that point but I'll let you know how it goes. Thanks again.

chopper man

Exellent! Maybe they got this worked out. How long ago did you purchase it, and how long has it been flying?

My covering was coming off within 10 flights, and I purchased mine in Jan 2006. Maybe they got it right.

At that price, I would probably go ahead and buy another if all is well. I sure would love to get a 60 size super Kaos.

Bob

Bob I've been flying this bird every weekend for the last 6 months since I bought it, I'm not sure what where the problems before like you said or maybe I was one lucky pilot.

But this plane at $ 99 dlls is a bergain from towerhobbies.

for example hardware: clevises are all steell, engine mount, all hardware is a very good quality the only thing I disliked was the wheels they'r foam ones, but who cares just mount some good ones and your done.

Just add a good engine and tuned pipe and it will turn into ballistic pattern

Go ahead buy a new one.

Regards.
Rafa

I have a supertiger 51 that will work nicely! I will hold off onthe Rossi with pipe because they are just too heavy. What I liked most about this aircraft is how smooth and deliberate the plane tracked. Nothing like horizon to horizon knife edge performance on an aircraft that is not a floater designed for 3-D. Also, it is very capable of classic pattern.
Bob

You can buy an Utter Chaos from these folks. Excellent kit materials.

http://www.bridiairplanes.com/hangar/utterchaos60.html