I believe that whether its a 2" or 50mm ball, the thread on the bottom to attach it to the tongue is still 7/8" Whitworth.

Stuart
----- Original Message ----- From: "Derek Ruddock" <[EMAIL PROTECTED]> To: "Discussion of issues relating to Soaring in Australia." <[email protected]>
Sent: Wednesday, February 22, 2006 8:45 AM
Subject: RE: [Aus-soaring] metric guess


Subscribers to rec.aviation.soaring will be aware of the perennial
problems that yanks have when they mash a 50mm hitch onto a 2" US
towball...



-----Original Message-----
From: [EMAIL PROTECTED] [mailto:aus-soaring-
[EMAIL PROTECTED] On Behalf Of John Giddy
Sent: Tuesday, 21 February 2006 5:51 PM
To: Discussion of issues relating to Soaring in Australia.
Subject: Re: [Aus-soaring] metric guess

No, 50mm is the common one these days.
2" is probably still obtainable to use with old trailers
John G.


Geoff Kidd wrote:
> Aren't towballs still 2" dia?
>
>
>   ----- Original Message -----
>   From: Daryl Mackay
>   To: Discussion of issues relating to Soaring in Australia.
>   Sent: Tuesday, February 21, 2006 5:10 PM
>   Subject: Re: [Aus-soaring] metric guess
>
>
>   Don't you mean the nut behind the wheel? We all have a story to
tell there.
>   I once backed a glider trailer through a gateway and caught the
drivers door
>   on the gate post. Then there was the time I backed into the tree
stump
>   adjacent my caravan at the gliding club. Then there was the glider
that I
>   towed into the sign post, another member who towed his into the
wind sock
>   and yet another who towed a club glider into the fuel shed. Yeah,
I'd say
>   the nut behind the wheel is pretty universal.
>
>   ***************************
>
>
>   ----- Original Message -----
>   From: "Wayne Carter" <[EMAIL PROTECTED]>
>   To: <[email protected]>
>   Sent: Tuesday, February 21, 2006 9:22 AM
>   Subject: [Aus-soaring] metric guess
>
>
>   > Date: Tue, 21 Feb 2006 10:27:25 +1030
>   > From: "Christopher Mc Donnell" <[EMAIL PROTECTED]>
>   > Subject: Re: [Aus-soaring] Part 47
>   > To: "Discussion of issues relating to Soaring in Australia."
>   > <[email protected]>
>   > Message-ID: <[EMAIL PROTECTED]>
>   > Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>   > reply-type=original
>   >
>   > Ya gotta understand the public service mind which I do after 40
years in
>   > it.
>   > BTW are'nt some of the aus-soaring threads interesting given
that I regard
>   > you as having a similar view re human nature that I have. But
I'm gunna
>   > keep my trap shut.
>   > Re our conversation on fastner disciplines I have found the only
>   > thread/bolt size on my Toyota Hiace camper van that is not
metric and that
>   > is universal with most vehicles around the world. Your trivia
task for the
>   > day. Where?
>   >
>   > Regards
>   >
>   > Chris McDonnell
>   >
>   >
>   > Exhaust straps? Part of the braking system- specifically the
hydraulic
>   > lines may be SAE, perhaps the nut on the steering wheel ;-)
>   > Dont get me started on why everything is not metric
>   >
>   >
>   > Wayne [EMAIL PROTECTED]
>   >
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>   >
>   >
>
>
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>
>
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>
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