Adjustable stab weight

[Ed Miller]

On my EMC the stab weights including the elevators are as follows;

                Before Monokote         After Monokote, hinges installed and 
gap sealed with clear Ultracote ( Radio South hinges, 5 on each stab half ).
Left side    61gr ~ 2.2 oz                74gr ~ 2.6oz
Right side  68gr ~ 2.4oz                  81gr ~ 2.9oz

This is a plug in stab. The adjustable part is Dick Hansons KISS method, a 
plywood laminated plate 5/32" thick and approximately 3/4" wide parallel to 
the stab tube through the fuse that sticks out past the fuse about 3/4" on 
each side. Hard points are installed in the stab over these "tabs" and a 
button head wood screw is used to retain the stab half from underneath. The 
ply plate is installed such that about 3/32" or so of shim is required to 
get stab 0 degrees to thrust line. Add or subtract shims to adjust the 
stab.Stabs but up against fiberglass fuse, no filet. Inside fuse a piece of 
3/32" balsa about 2'" wide runs lengthwise from the rear fuse bulkhead to 
the tailpost on each side of fuse. the stab tube and stab 
adjustment/mounting plate runs through these 3/32" balsa fuse doublers. 
There is no part of the stab installed in the fuse. Very stiff, no stab 
wiggle side to side or up and down. I used PBG CF wing and stab tubes and 
Gator sleeves, originally I was going to use aluminum wing and stab tubes 
till I was convinced the CF would hold up.
Ed M.
----- Original Message ----- 
From: "Dean Pappas" <d.pappas at kodeos.com>
To: <discussion at nsrca.org>
Sent: Friday, December 10, 2004 9:11 PM
Subject: RE: Adjustable stab weight


> Hi Bob,
> I typically see 4-1/2 ounces without the aluminum stab tube.
>
> -----Original Message----- 
> From: discussion-request at nsrca.org on behalf of Bob Kane
> Sent: Fri 12/10/2004 5:41 PM
> To: discussion at nsrca.org
> Cc:
> Subject: Adjustable stab weight
>
>
>
> Has anyone ever weighed their adjustable horizontal
> stab before mounting it to the plane? I have almost
> finished making the stab of my Temptation project
> removable and adjustable using the technique described
> by Bob Noll in his "Perfect" series of tapes. My kit
> is the deluxe version, pre-sheeted stab and wings. The
> completed stab seems heavy, but there is a lot of
> hardware involved. I'm interested in the weight of
> both the halves and the center section including the
> tube, thanks.
>
> =====
> Bob Kane
> getterflash at yahoo.com
>
>
>
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