Ultra Stick 60 ARF balance

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Frank Zdancewicz - 30 Jul 2004 04:21 GMT

I'm just finishing up assembly of an Ultra Stick 60. I'm using an OS
61FX and(Probably temporary) and seem to be way nose heavy. I located
the battery just forward of the vertical fin but find I need more
weight. The instruction book says to locate the engine thrust washer
between 5 and 5.25 inches from the firewall. This places it far
forward on the engine mount beams. Did I miss something here or is
this a common problem? I probably will switch to a Saito 90 as soon
as I get the parts to repair it but I don't think there is a lot of
difference in weight.

Regards,

Frank Z.

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Fubar of The HillPeople - 30 Jul 2004 05:38 GMT

Common problem. Most US60 builders mount the elevator and rudder servos in
the tail and use pull pull setups. Generally still need to add weight to the
tail.

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Dan
AMA605992
KE6ERB
http://www.fubar1.net
"I've heard the screams of the vegetables..."
Take out the "trash" to reply

> I'm just finishing up assembly of an Ultra Stick 60. I'm using an OS
> 61FX and(Probably temporary) and seem to be way nose heavy. I located
[quoted text clipped - 9 lines]
>
> Frank Z.

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Mike Wizynajtys - 30 Jul 2004 16:28 GMT

Why people bother will pull/pull for such a short distance (servo in
tail to tail control surface) is beyond me.

Wiz

> Common problem. Most US60 builders mount the elevator and rudder servos in
> the tail and use pull pull setups. Generally still need to add weight to the
> tail.

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Fubar of The HillPeople - 31 Jul 2004 00:09 GMT

Some people dig it. I just shortened the hell outta the push rods and left
it at that. Never had any problems.

Signature

Dan
AMA605992
KE6ERB
http://www.fubar1.net
"I've heard the screams of the vegetables..."
Take out the "trash" to reply

> Why people bother will pull/pull for such a short distance (servo in
> tail to tail control surface) is beyond me.
[quoted text clipped - 4 lines]
> > the tail and use pull pull setups. Generally still need to add weight to the
> > tail.

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David - 30 Jul 2004 17:02 GMT

Frank,
My US60 has an OS 91 FSII. I installed the battery behind the servos and
added lead to the tail to get it on the recommended CG.
DDeadlly

> From: fzdancew@verizon.net (Frank Zdancewicz)
> Organization: http://groups.google.com
[quoted text clipped - 15 lines]
>
> Frank Z.

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Model Forum / Radio Controlled / Air Models / July 2004

Ultra Stick 60 ARF balance