Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Tower hobbies Kaos

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Old 05-01-2009, 09:30 PM
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spencer321
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Default Tower hobbies Kaos

Hey i was wondering of the kaos from towerhobbies with a magnym 46 will pop 100+ please leave feed back.
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Old 05-01-2009, 11:23 PM
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Default RE: Tower hobbies Kaos

Probably high ninty's, is my guess.
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Old 05-02-2009, 01:09 AM
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Default RE: Tower hobbies Kaos

not sure, I bought a BH speed air-40 (similar plane) hoping for a 100MPH plane. I got a magnum XLS.46 powering it. I tried a 10x6-8 MAS prop but wasn't getting what I was looking for. I'm running a 11x6 MAS taching 13200rpm static and guessing it around 70MPH tops in flight. I tried a APC 11x6 but lost about 1600 RPM. I picked up a few more props that I'm going to try, but I think the only way I'll break the 100MPH barrier is if I swap the .46 for a .61. good luck with yours!!! If you get there let me know what your running for a set up.
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Old 05-02-2009, 05:41 AM
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Default RE: Tower hobbies Kaos

I bought a Tower Kaos ARF a couple of years ago and put an OS 46 on it. Good flier and reasonably fast. The point of this post is that the airplane must have 300 plus flights and like a Timex, it is still ticking. Not the prettiest plane after some of the trim has let go. Now, I think if you used a good 60/61 sized engine and were able to move some things aft for the CG, the airframe would have no problem with the engine. Of course, the usual epoxy/strengthening the firewall and maybe wing mount points would be in order. These pics were back when it was newer and still has all its trim. Note, I didn't install the canopy. Does that make it an "Extreme Speed Kaos?"
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Old 05-02-2009, 07:55 AM
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Default RE: Tower hobbies Kaos

Loved my Kaos... but lost it last week to a lousy AR500receiver.....DON'T BUY ONE...... stick with the 6 and 7 channel[:@] Prior to that it was my faithful test bed for engines and props. You will not get 100 out of it in level flight with a 46. I tried... the wing is to thick...it was not built as a speed plane even though it is pretty clean and fast. To much drag with all that gear.....You could put an outrageous 60 or larger engine in it and maybe get 100. I was close with a piped set up that I had (mid 80's) that I was testing for a Magnum. It is a great plane with no bad habits....I need another for engine breakin and testing for my speed planes and for just boring holes in the sky

To ease the pain of my loss (depressed for three days) I went out and bought a Stryker......claimed 80 out of the box......YEEHaa...it is fun!
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Old 05-02-2009, 08:25 AM
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Default RE: Tower hobbies Kaos

Sorry no, not 100....
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Old 05-02-2009, 08:49 AM
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Default RE: Tower hobbies Kaos

The nosewheel will cost you 5 mph, go thin wheels and a tail dragger. Fairing in the engine and a pipe will help.
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Old 05-02-2009, 10:09 AM
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Default RE: Tower hobbies Kaos


ORIGINAL: spencer321

Hey i was wondering of the kaos from towerhobbies with a magnym 46 will pop 100+ please leave feed back.
Not likely. It has a think wing and that gives it some of it's nice manners. But it holds it back. It is not a speed airplane, but it is a heck of a sport aerobat and all-round fun ship.

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Old 05-02-2009, 09:38 PM
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Default RE: Tower hobbies Kaos

Nope, wont do it.

Mine moves along ok with OS .46FX a very good sport plane.

Wing is too thick, and too much area, trike gear adds drag too.

You are better to start off with a quickie 500 type of plane.
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Old 05-04-2009, 08:59 AM
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Default RE: Tower hobbies Kaos

I've got a 55 AX in mine. Had a tuned pipe, now back to the stock pipe due to noise. With the tuned pipe and an 11 x 8 APC, it radared at 118 level flight. With the stock muffler, radared at 106 mph. Never had a .46 on it so don't know what it would do.
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Old 05-04-2009, 10:03 AM
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Default RE: Tower hobbies Kaos

Curious Biggerdanno what pipe/header setup did you have on that 55AX.
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Old 05-04-2009, 10:20 AM
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Default RE: Tower hobbies Kaos


ORIGINAL: arcticflyer

Curious Biggerdanno what pipe/header setup did you have on that 55AX.
Mac's pipe and header. I tuned it. If you want the length, I'll measure it tonight.
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Old 05-04-2009, 01:03 PM
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Default RE: Tower hobbies Kaos


ORIGINAL: BiggerDanno

I've got a 55 AX in mine. Had a tuned pipe, now back to the stock pipe due to noise. With the tuned pipe and an 11 x 8 APC, it radared at 118 level flight. With the stock muffler, radared at 106 mph. Never had a .46 on it so don't know what it would do.

That's good to hear, I thought it would do 95 with a 46. The thick wing has little to do with the top speed, you get much more drag from the dirty nose, LG and wheels, than you would save by having a thin wing.

BiggerDanno you still got trike gear on it and standard tires?
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Old 05-04-2009, 07:16 PM
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Default RE: Tower hobbies Kaos

The length would be great....I had thought about that engine in the Kaos with a pipe....If I decide to use that combo it would sure save some cutting and time. Thanks
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Old 05-05-2009, 09:34 AM
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Default RE: Tower hobbies Kaos

Sorry, didn't get it measured last night. Will try to do so tonight.

The thick wing has a lot to do with the top speed. I put a West 50V1 on the Kaos, fastest it went was 136 mph. Too much drag to go much faster.
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Old 05-05-2009, 11:03 AM
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Default RE: Tower hobbies Kaos

ORIGINAL: BiggerDanno
The thick wing has a lot to do with the top speed.
Not at our speeds. What's the thickness 15%, that sounds familar, isn't that what a Quick 500 uses?

ORIGINAL: BiggerDanno
I put a West 50V1 on the Kaos, fastest it went was 136 mph.
It's a shame you couldn't make it go fast! [sm=thumbup.gif][sm=thumbup.gif]
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Old 05-05-2009, 11:46 AM
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Default RE: Tower hobbies Kaos

BiggerDanno- WOW....136 is screamin for that plane....I would have liked to see that run. When I get my new one.....I'm gonna convert to tail dragger and go with pylon wheels Also gonna do some work with that nose to clean it up some and stream line it. This winter I found some kits for different sized Kaos's online. I'm going to do a purpose built one for speed and thin those ribs down a tad Should get some serious numbers from it.

soarrich- man I ain't tryin to sturrrrr up a hornets nest but if you look at the photo below I tried to take a picture of (what's left of) my Kaos wing (bottom) and my Magnum wing (top) no comparison...the Magnum is a purpose built plane to do nothing but go fast and turn. That Kaos wing does even at our speeds affect the top speed. Now we could keep mounting larger and larger engines on the nose and go faster and faster and eventually rip the wings off or the firewall but when all is said this is built as a 40 sized plane. This winter after I build a 40 sized Kaos and thin the ribs to get a more"jet like" appearance to the wing wait till you hear the numbers I will get with "smaller" engines. I'm not sayin you can't make the thing scream...look at biggerdanno's plane. But, you have to over power to do it.....which hey....there ain't nothing wrong with for us speed freaks. But as ole Clint used to say, "a man (or plane) has got to know his limitations." It ain't a quickie 500 wing it is a pattern/sport wing I'll quote the most recent Tower Talk advertisement, "KAOS 40ARF increases maneuvering potential and tracks with precision- but also prevents speed build-up during dives and promotes slow landings." It is the wing (and gear) that prevents the speed build-up. Can we make it go faster?.....OH Yeah....But I'll smoke it with my Magnum and a smaller engine. Ain't arguin man just discussin...don't want to make an enemy out of a speed brother.....we gotta stick together. I had an ole guy at the club the other day say they ought to ban my Magnum....just because it's fast. I fly safe....I never fly over the pits...I always keep it under control...some guys just love CUBS.....NOT ME
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Old 05-05-2009, 11:53 AM
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Default RE: Tower hobbies Kaos

The Kaos wing is about 2-1/2" thick. Makes it hard to get any reaaaaal speed out of it.

I've got a Bridi Utter Chaos 40 kit that I'm going to build with retracts and tail dragger. It didn't come with plans though, any of you guys got the plans for it?
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Old 05-05-2009, 11:54 AM
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Default RE: Tower hobbies Kaos


ORIGINAL: soarrich

ORIGINAL: BiggerDanno
The thick wing has a lot to do with the top speed.
Not at our speeds. What's the thickness 15%, that sounds familar, isn't that what a Quick 500 uses?

ORIGINAL: BiggerDanno
I put a West 50V1 on the Kaos, fastest it went was 136 mph.
It's a shame you couldn't make it go fast! [sm=thumbup.gif][sm=thumbup.gif]
That's what my Magnum is for![8D]
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Old 05-05-2009, 11:55 AM
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Default RE: Tower hobbies Kaos

The Kaos has about double the relative thickness compared to a quikie, or more. Plus the LE is very rounded on a Kaos.

I disagree that a thicker wing is NOT slower. That is on proper airfoiled wings.
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Old 05-05-2009, 12:51 PM
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Default RE: Tower hobbies Kaos

Biggerdanno- Did you get your Utter Kaos kit from Bluejay airplane kits? I'm curious because I am looking at a couple of their kits and sure hope they have plans.
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Old 05-05-2009, 01:15 PM
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ORIGINAL: arcticflyer

Biggerdanno- Did you get your Utter Kaos kit from Bluejay airplane kits? I'm curious because I am looking at a couple of their kits and sure hope they have plans.
I'm sure the kits come with plans. I bought mine from an estate sale. I've contacted Bluejay both by email and called on the phone, no answer from either source.
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Old 05-05-2009, 01:18 PM
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Default RE: Tower hobbies Kaos

WOW...that don't sound good....I hope they are still in business[&:]
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Old 05-05-2009, 01:32 PM
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Default RE: Tower hobbies Kaos


ORIGINAL: arcticflyer
soarrich- man I ain't tryin to sturrrrr up a hornets nest Ain't arguin man just discussin...don't want to make an enemy out of a speed brother.....we gotta stick together.
No problem, this is just speed freaks talking.

ORIGINAL: arcticflyer
my Kaos wing (bottom) and my Magnum wing (top) no comparison...the Magnum is a purpose built plane to do nothing but go fast and turn.
No, it goes fast, turns not in that wing.

ORIGINAL: arcticflyer
That Kaos wing does even at our speeds affect the top speed.
I wrote:
The thick wing has little to do with the top speed, you get much more drag from the dirty nose, LG and wheels, than you would save by having a thin wing.

Which I still believe is true.



ORIGINAL: arcticflyer
Tower Talk advertisement, "KAOS 40ARF increases maneuvering potential and tracks with precision- but also prevents speed build-up during dives and promotes slow landings." It is the wing (and gear) that prevents the speed build-up.

Sales talk. The gear and open nose probably have more drag than the wing.

No doubt with a thinner wing it will go faster, to a point. The Magnum would be faster if it had a better wing, I would bet that a good airfoiled wing twice as thick as the Magnum's would be faster. The Magnum's wing is that way because it's cheap and looks fast. If you want to see a fast wing look at the F5B planes, or a little more in our type look at the German Speed planes.
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Old 05-05-2009, 01:38 PM
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Default RE: Tower hobbies Kaos


ORIGINAL: evan-RCU

The Kaos has about double the relative thickness compared to a quikie, or more.
A quickie is 15%. I can't believe the Kaos is 30% thick, maybe 18%, but I tought it was 15% also.

ORIGINAL: evan-RCU
Plus the LE is very rounded on a Kaos.
Pointy has no effect until about .7 Mach.

ORIGINAL: evan-RCU
I disagree that a thicker wing is NOT slower. That is on proper airfoiled wings.
I agree, thinner is usually faster.
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