Actually, there were 4 different Cal
39 models. The first three versions, the MK1, MK2, and MK3 were Bill Lapworth designs and the MK4 was designed by C Raymond Hunt & Assoc.
The MkI was built starting about 1971 and there weren't very many built, probably less than 25. This model had a deck
stepped double spreader mast
and a completely different hull
design from the later MK2 & MK3.
The MK2 and MK3 were designed starting in 1976 and production actually started in 1978 (I think). The hull
and decks were the same for both of these boats, but the MK3 had a slightly more modern mast
, perforated toe rail instead of teak
, more modern windows, etc. Both were available with an "aft cabin" version, regular draft
or shoal draft keel
, tall rig, etc. Most of the 39s that you will ever see were either MK2 or MK3 versions. I believe production stopped about 1984 with something like 200 built.
The MK 4 was, as noted, not a Lapworth design. It was conceived and built during the last gasps of Cal boats, and again probably less than 25 of them were ever built.
You can find more info on the 39 by Googling "cal39" and you will find the owners site which gives info on owners, boats etc. and you can also find tech info on sailboat data.com.
I have had a 1979 model MK2 for over 15 years. We keep it in the southern Chesapeake Bay
, and there are several other Cal 39 that I know of in the area.
Feel free to contact me if you have further questions.