Rasmus wire halyards
Hope I'm not too late to help, just got back from a short holiday. The info I can give you is from our boat, Guinevere I. She is hull #152, ketch rigged with a selden mast and lewmar reel (wire) halyard winches. I believe all the masts used in that era, both ketch and sloop rigged were the same length, the ketches however have a boom approx 24 inches shorter. The old all wire halyards were head- 79 feet, main- 76 feet. We replaced them with head- 82 feet, main- 80 feet, the originals were 3/16 inch dia as were the replacements. As info for other Rasmus owners, the mizzan mast is a wire to rope spliced halyard, wire 25 feet long, 5/32 dia spliced to 30 feet 3/8 dia double braid.Kind Regards,Ben.