Hobies typically had 3/16" Monel rivets on most mast and boom fittings.
There were some 1/4" rivets on the crossbars and some 3/16" flathead rivets
in the rear traveler track.  Monel rivets are slightly harder than stainless
so a sharp drill and a steady hand are required.  Also a good pop riveting
tool is needed to pull the Monel rivets.  I can pull aluminum ones all day
long, but one or two Monel rivets do me in.  

As the Hobie can capsize, any fittings replaced on the mast or boom should
be sealed with RTV (rivets also) to keep the mast from taking on water in
the event of a capsize.  Not something us monohull sailors consider too
much!  Hope this helps.

Former Hobie sailor
Steve Shenkel <>< _/)
M 17 # 263 Glendale, AZ

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Bobbie Mayer
Sent: Tuesday, July 25, 2006 1:31 PM
To: [email protected]
Subject: M_Boats: removing rivets

No M content= H instead.  My sister is trying to replace a part on an 
old Hobie 16, and needs to remove old rivets.  How can she do this?

Bobbie

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