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Home✈️Aircraft🚁HelicopterAntiques or Out of Business › Kalt Omega Zeus/Pro Frame Stiffeners
09-21-2009 01:04 AM  11 years ago
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GMPheli

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Kalt Omega Zeus/Pro Frame Stiffeners
This Zeus has optional (I think) frame stiffeners.

Does anyone know if they had them for the Omega Pro Grand Prix?
I am building a Grand Prix, and notice that there is considerable flex in the lower part of the lower frame. I can move the upper frame from side to side and watch it move close to a mm in relationship to the cluth bell. The start shaft rocks from side to side as I flex it. I think I am going to have to make some. I would say odds of finding any are probably slim, but figured I would ask.
Thanks
Alan
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06-21-2010 12:02 AM  11 years ago
GMPheli

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Well, this is what I have made:

2 sets and the masters to make them from. Now to polish em up a bit and on to assembly.
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06-30-2010 10:55 AM  11 years ago
human213

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malibu

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The omega
did not have...
or need them...

the zeus was a large part of the kalt demise...
a poor machine in many ways....

Kalt is very much missed.

m
Not everything that can be counted counts, and not everything that counts can be counted.
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06-30-2010 12:41 PM  11 years ago
GMPheli

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Well I guess that is your opinion. I can tell you have you not tried flexing them.
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07-03-2010 02:44 PM  11 years ago
GMPheli

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m:

I would have to agree with you that these stiffeners are not needed. Yes it will fly without it, but do we not strive to build the best, longest lasting heli we can? I know I do. I like building, it is relaxing.

Look at the design of the early GMP and MA ships. They had a metal plate behind the motor that gave the frame side to side rigidity.

The TSK Kaiser Ace has frame stiffeners added on:

MA has some kind of backbone now, X-braces are available, etc. These are all designed to add stiffness to the frames in the side to side direction. The Omega has nothing in this area. You can flex the frames very easily throwing the clutch main gear alignment out of whack, binding/wearing the one way bearing in the clutch, and start shaft bearings. When throwing a machine around this has to be happening in the air. Many machines have problems with the pinion gear wearing in the upper bearing. Why do you suppose this is so? If you are OK with this that is fine with me. I strive for better. So maybe instead of making rude comments about something that someone has quite obviously worked hard on, you could explain why you think these stiffeners are not needed.
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07-03-2010 07:53 PM  11 years ago
human213

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Because I have over 2100
flights with no crashes or disassembly, or problems...

m
Not everything that can be counted counts, and not everything that counts can be counted.
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07-04-2010 12:55 AM  11 years ago
GMPheli

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Sorry. I thought it was rude to just state that they are not needed and then give no explantion. There is a lot of flex in this area though, and I am still going to use them.
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07-04-2010 02:19 PM  11 years ago
GMPheli

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m:

Are you still using the stock white Kalt links? I am just wondering if I can trust them. And how did you secure the pinion gear to the start block bearing? It seems when you have a frame design that couples flexy frames with a one way bearing in the clutch, people tend to have trouble with this area wearing. Especially if the machine is thrown around a lot. The TSK MyStar series suffers from this problem. I read of one guy who said he gave up on them because he could not keep this area together. But he was really pushing it in the air. Have you seen the frame design for the JR Sulphide? This frame is designed to eliminate flex in this area.

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10-10-2010 02:44 PM  10 years ago
GMPheli

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Coming along

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10-10-2010 08:10 PM  10 years ago
human213

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The Omega
and the Zeus are clean looking models....

so is yours.

No link problems, but I would put fresh ones on
since the originals are long in the tooth.

michael
Not everything that can be counted counts, and not everything that counts can be counted.
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10-11-2010 01:03 AM  10 years ago
GMPheli

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Thanks, michael. I am going to use the links. They are brand new, and not brittle at all (I destroyed one). I have a new Zeus frame set if anyone is interested.
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10-20-2010 10:47 PM  10 years ago
GMPheli

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Michael and all:

Here is a pic of some used Omega clutches I bought a while back. You can see that the area that goes into the bearing of all 4 clutches is worn. If I measure this worn area with dial calipers, the bottom (near the pinion) is worn more than the top. This suggests to me that the motor has been allowed to rock back and forth. The only way I can see this happening is from the side frames flexing. It was these clutches and the fact that I can flex the frames quite easily by hand that made me decide to make the frame stiffeners.

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10-22-2010 07:56 PM  10 years ago
GMPheli

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Frame stiffener on Kalt Baron

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