The Contest 30 was built in 1969-70. The 25 & 29 were built in 1967 & 1968, then the 27 & 30 in '69 &'70. VERY strongly built, with NO core, 1" hand-laid fiberglas at the water line, 5/8" at the rail. Original engine a a MARSTAL 1cyl gas unit. Very stable, just under 50% ballast/displacement ratio. While the 25 & 29 has spruce spars, the 27 & 30 had Aluminum ones, made by Sparlite in England. Lots of room below deck (until you go forward, then learn to duck!). My 27 is Hull #2, 6ft 2 inch headroom in the main cabin, then DUCK 4 ft 7 inch thru to the head (stb) / hanging locker (Port), then a huge V-Berth. The only down-sides are gate valves on all thru-hulls, cast iron ballast (encapsulated), and OUCH! low headroom fwd of the main cabin. Pluses: STABLE, Lots of storage space, real chart table, Extreme engine accessiblity, and roomy below decks. All in all, a nice boat, built to take the seas.