Cleve:
I am using the reference on page 18-7 for installing the tail plane push
rod.
Where they say 6 deg trailing edge down and 14 up to ensure that the final
movement of the tailplanes will result in a maximum of 13 and -5.
Steve
A143
Mesa AZ
> [Original Message]
> From: <clevelee@cswebmail.com>
> Cc: <europa@avnet.co.uk>; <hagargs@earthlink.net>
> Date: 1/30/02 4:48:25 PM
> Subject: Re: Tailplane mass balance stops
>
> Steve,
> My XS manual only calls for 4 degrees down. That 5th degree would cause
a similar problem for me.
>
> Is there something I should know??
>
> Cleve Lee
> A198 Mono XS
>
>
>On Mon, 28 January 2002, "Dave Simpson" wrote:
>
>
>> Mine did this too. I simply machined a
>> part of the mass balance away, so that it looks rather like a truncated cone
at
>> the forward end. Then it cleared OK.
>> ----- Original Message -----
>> From: <hagargs@earthlink.net> Steve Hagar
>> Subject: Tailplane mass balance stops
>>
>> I'm up to another case of looking for someone who has been in a similar
>> "been there done that" situation. I am in the process of putting in the
>> bulkhead and stops for the tail plane mass balance. During the first
>> iteration, (setup as described in the manual), things did not pan out as
>> expected (typical). The end result was that the aircraft nose down travel
>> (balance up) exceeded limits of bulkheads.
>>
>> The second iteration involved getting rid of the big fat wooden
>> dowel and rubber hose stop (1.5" dia) and replacing them with a UHMW type
>> material stop around the cross bolt with a dia of .5" to get the mass
>> weight
>> down lower to start with. At this point the weight stops about 1.2"
>> above the tailplane push tube in its lowered position. The end result was
that
>> it looked close, though the next step was to get technical and actually lay
>> the top of the aircraft on the whole mess before continuing.
>>
>> With the top on, the weight smacks the top of the fuselage being a
>> little over a degree short of the minimum amount required of nose down
>> travel. Granted only 5 degrees is called for but I am short over
>> 20%. I see my direction now as doing some creative machining
>> of the steel weights when it comes time for metal removal and balancing to
get
>> clearances. Or to do some beefing up of the lower stop to allow the
>> weight to get even closer to the tube at its bottom travel.
>>
>> Any "out of the box" insights would be much appreciated.
>>
>> Steve Hagar
>> A143
>> Mesa, AZ
>>
>> --- Steve Hagar --- hagargs@earthlink.net
>>
>
>
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--- Steve Hagar
--- hagargs@earthlink.net
|