Those shaft lengths are an industry standard but there are exceptions.
Catalina 22 outboard shaft length. The Catalina 22 MkII is a 216 655m cruising sailboat designed by Frank Butler United States. Originally called the CAPRI 22 swing keel From a new fairer mold though the hull design is the same as the original CATALINA 22. And there are extraultra-long shafts for transoms measuring taller than 225 inches.
Circumnavigator and sailing writer Webb Chiles reports getting similar numbers on his Moore 24 which is nearly the same weight. 15 shafts should be reserved to protected waters. If your transom measures 19 to 225 inches youll need a long shaft.
Its hull measures 21 foot 6 inches 655 m which is rounded up to 22 feet 67 m for use in the models name. Dont forget the Catalina 22 is a SAILboat. Ive been doing some research and it appears that a 6hp 25 shaft Tohatsu would be the best bet because it has a little more power than is needed to reach hull speed and is light weight and the price is right.
Standard shaft lengths are 15 20 and 25 38 50 and 63 cm. Youll find the common answer is 6HP longshaft Tohatsu Sailpro. At about 25 knots the maximum range is about eight miles.
This measurement will vary between 15-17 for a short shaft motor 20-22 for a long shaft motor and 25-27 for ultra long shafts. Another measurement is from the inside of the clamp top of the bracket or transom to the anticavitation plate above the prop which on a contemporary XL outboard is about 27 and change. The Fin keel version adopts a classical fin configuration the easiest option to provide a low center of gravity.
First produced in 1968 it is one of the longest continuously produced sailboats in the worldOver 15000. For mid-range engines the most common shaft length is 20 508 mm. I have a Nissan 6HP with a 20 shaft.