Guide to Points of Difference

In a production run that stretched from 1970 to 1982, the C&C 27 evolved both functionally and cosmetically – not as thoroughly as other boats in C&C's line, which were given complete redesigns, but there are important differences nonetheless. By the late 70's, C&C was up against a problem faced by many builders – the orders kept coming in, defying at least two attempts to terminate production, but the 27 cost the factory as much in labour and materials as larger boats and the price couldn't be pushed any higher. Finally, a completely new boat, employing every cost-containment technique and aimed at the then-new MORC rule, was launched under the same name.

In many regions, the different models are known as the Mark I to Mark V. These designations were never used by C&C, which referred to the boats as Mk I or Mk II to distinguish the lengthened and subtly re-shaped hull that appeared with the boat that we refer to as the Mk III. The terms I to V are unambiguous, however, and widely understood, so they are used throughout this site.

These pages show some of the readily visible differences. Other differences will be seen in the specifications for the marks. These have a profound impact on the performance of the boat; the Mark III and IV are quicker in light air, while the Mark I and II are preferred in stronger air (particularly if the rudder has been upgraded – see the owner's comments under Hyperion's New Rudder in Black Arts). The Mark V is faster upwind, slower down.

You can also determine which Mark a boat is by reading the Hull Identification Number and cross-referencing it to the information given in Evolution.

If you are reading this in anticipation of buying a C&C 27, read this overview of buyer's tips culled from the Forum.

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Mk I cockpit
Mk III cockpit
Mk V cockpit
Mk I hatch and windows
Mk III companion hatch
Mk I chainplates
Mk III windows (later hulls)
Mk I moulded forward hatch
Mk III alloy forward hatch
Mk III/Mk IV anchor well
Old and new rudder forms
"Classic" hull & appendages