Crowther gave his early designs names such as Spindrift, Kraken, Buccaneer and Twiggy but in the 8os he mainly did design numbers.
Design 85 was a bit of a breakthrough at the time. It was one of Lock's first pure cruising cat designs and had his new (at the time) more buoyant bows and sterns. The hulls were canted slightly and had the new style bulb bows. The rig was modest but the
boats developed a good reputation for being solid sea
boats and good cruisers.
The first one of the design was Scotfree. (built at Montys in QLD about 85) Sadly she burnt down within a couple of years. I have met a few owners of different variants of the design and they liked the design. It is a solid cruiser, not like the cruiser racers like the Windspeed series that lock also drew.
I like the boats. They have wide flat decks that are easy to walk on and they have quite vertical windows so they get less heat inside from sunshine. There were many different builders of the design, and the design evolved over time, so there will be a fair bit of variation within the boats.
cheers
Phil