I think you may be conflating two different yachts from Middle Harbour in the 70s. Both around the same time both purple.
Plum Crazy - Joe Adams designed 31ft half tonner (IIRC Bob Miller was involved somehow). Owned by Tig Thomas - Channel 7 guru and the man who helped get Iain Murray the Channel 7 sponsorship. Raced a lot. Helped get my brother into sailing and then the lot of us got swallowed up in the vacuum.
Cooee - a similar colour flush deck Swanson 36 made in the front yard of the Eltringhams in suburban Cromer. Rob built it (and I sailed it to Fraser back in 1980 with them as a kid). Cooee was never raced when I knew her. Cooee had the blister cabin instead of the long Swanson cabin. Nice boat. She also had the wheel steering backwards - so you turned it the wrong way, just like a tiller - I wasn't old enough to drive when I steered her so it was okay but I reckon someone would have changed it after all these years - or had lots of accidents when driving cars.
Info on Plum Crazy
www.histoiredeshalfs.com/E148%20Plum%20Crazy.htmJust remembered - I have a hazy recollection of seeing Cooee named Plum Crazy on the hard at Oyster Cove. Wouldn't put money on it. The last time I saw her was in the lake - the builders owned a classic yacht - Caprice of Huon and we sailed over to tell them of Cooee? (or PLum Crazy)
Why do you want to know?
cheers
Phil