and he notes -

Let's see - Kadee should sink 20 or 30 grand for tooling to produce 
an exact 3/16ths scale coupler with maybe a couple thousand pairs 
sold in the first year and then a trickle from then on. How many 
years would it take for a return on investment if they sold for under 
ten dollars? (Or should I say how many decades?).  Producing an HO 
Gauge coupler with tens of thousands of projected sales makes a whole 
lot more sense for a manufacturer with limited production capability, 
not to mention investment capital. No wonder they're not jumping on it!

If a few of their couplers are oversize for HO and within 10% of a 
3/16ths scale coupler that amounts to about a 1/64th of an inch in 
height. Hardly noticeable and given the fact that all manufactured 
parts are made to a tolerance (and assuming Kadee's HO couplers are 
10 -20% oversize) producing a 3/16ths scale coupler would also be 
either over (or under) by same tolerance. More than likely they'd 
shoot for the higher tolerance and allow for shrinkage so 
theoretically a 3/16th scale type H coupler would be a scale inch or 
more larger than the prototype's 12 3/8ths inch height (or a foot 
instead of 11" over the pulling face).

Given the fact that 3/16ths scale enthusiasts number in the hundreds 
instead of thousands, we are lucky to have any choices at all. Since 
my eyes ain't that good anymore a 64th of an inch here or there 
doesn't even show up on my bifocals!

BTW, has anybody checked out the Kadee type "F" coupler? (stock #118) 
It takes only a small modification to make it a type "H" and it might 
be close enough to S to be useful.

http://www.kadee.com/htmbord/page310.htm

Of course the uncoupling rod would have to be replaced for the proper 
height above the rail (or do what the late Leon Walker did and bend 
it with a pair of pliers!)...

Raleigh in cool but still dry Maine





At 08:18 PM 9/3/2008, Ed wrote:

>Atta boy John,
>
>Go get them. All they have are their excuses of why "S" has to use or should
>use everybody elses scale couplers. Close only counts in horseshoes.
>
>Ed Eckert
>
>-----Original Message-----
>From: <mailto:S-Scale%40yahoogroups.com>[email protected] 
>[mailto:[EMAIL PROTECTED] On Behalf Of
>John Degnan
>Sent: Wednesday, September 03, 2008 3:46 PM
>To: <mailto:S-Trains%40yahoogroups.com>[EMAIL PROTECTED]; 
><mailto:S-Scale%40yahoogroups.com>[email protected]
>Cc: <mailto:S-Trains%40yahoogroups.com>[EMAIL PROTECTED]
>Subject: Re: [S-Trains] Re: {S-Scale List} Brass S Kadee couplers
>
>I don't care how Kadee looks at it, 10% oversized AND/OR 20% undersized (or
>whatever) still means that it is NOT 1/64 scale. If being OVER and/or UNDER
>was "ok" and "acceptable," then WHY did Kadee invent the #58, #78, #118 and
>#119 "scale head" couplers for HO scalers?!?
>
>If OVERsized or UNDERsized couplers ain't alright in HO, then it ain't
>alright in S either!
>
>'Nuff said.
>
>John Degnan
>[EMAIL PROTECTED] <mailto:Scaler164%40comcast.net> net
>
>[Non-text portions of this message have been removed]
>
>[Non-text portions of this message have been removed]
>
>


[Non-text portions of this message have been removed]


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