Your Atlantis looks great. Thanks for info on Orange Monster. it belonged to a member of our group who died in May. I have been working on three IOM yachts also his, had one on the water for test run last week, going well.
The sail winch on Orange has a switch driven by a servo, I assume this is reverse/stop/forward for the motor driving the drum. Long slim motor Monoperm?
I'll wait until I've got the last of the IOM's going. This one needs new drum winch and servo and some rigging before it sails again

Looks great...Sirs well in the water too.

Many Thanks Biggles for the sail plan from Roger Stollery. I think my Orange Mystery is a mystery no longer. Thanks to all who contributed