Adjustable stab weight

Lance Van Nostrand patterndude at comcast.net
Thu Dec 16 20:15:53 AKST 2004 

I like the looks of the EMC2 as well.  it never really caught on as a 
signature plane, but Dave Lockhart has nothing but good to say about it. I 
know some other designs that really shine but were never that popular. 
Truth is, although designing a great flier is difficult, it's not that 
uncommon.
--Lance

----- Original Message ----- 
From: "Ed Miller" <edbon85 at charter.net>
To: <discussion at nsrca.org>
Sent: Wednesday, December 15, 2004 10:35 AM
Subject: Re: Adjustable stab weight


> Lance,
> I was like you, initially I didn't like the look of the small tabs on the 
> bottom of the stab when the plane was turned over but I quickly got over 
> that when I weighed the more common adjustable stab setups and seen some 
> of the problems folks had with them. The tabs are back away from the 
> leading edge of the stab so they are not visible when the plane is 
> upright. The EMC2 is a difficult plane to keep under 11 pounds, a few 
> changes this winter and mine will go from 10 pounds 11 ounces down to 10 
> pounds 9 ounces and I have never heard or seen anyone build one that light 
> that was durable and still had wheel pants on it. My switch harness and 
> tank are too heavy and I have lighter, just as durable items going in. I 
> have 2 more EMC kits, one will be a twin to the one I have now and the 
> other will become a bipe with an OS 160 or ???. Yes it is a 7 year old 
> design but it flies better than I ever will and I like the looks of it.
> Ed M.
> ----- Original Message ----- 
> From: "Lance Van Nostrand" <patterndude at comcast.net>
> To: <discussion at nsrca.org>
> Sent: Tuesday, December 14, 2004 9:31 PM
> Subject: Re: Adjustable stab weight
>
>
>> Ed,
>> I've built this method and it works great and is really lighter than 
>> anything.  I guess vanity gets me because of the plates, but it 
>> shouldn't. Thanks for the reminder!
>> --Lance
>>
>> ----- Original Message ----- 
>> From: "Ed Miller" <edbon85 at charter.net>
>> To: <discussion at nsrca.org>
>> Sent: Sunday, December 12, 2004 9:43 AM
>> Subject: Re: Adjustable stab weight
>>
>>
>>> 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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>>>>
>>>>
>>>
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