The MJM 40z is Category A. The 29z, 34z and 36z are Category B.
Only 5 well-known brands had vessels certified as Category A. The vessels were the MJM 40z; Nordhavn 40 and 47; Fleming 55, 65, 75; Tiara Sovran 58; and, Marquis 420-720. You can see the great contrast in design and displacement. This following comparison makes the point that an exceptionally strong, light boat can be just as seaworthy as one of the heaviest boats... and more seaworthy than most of the so called "heavy" boats.
The Nordhaven 40 weighs 50,000 lbs. and cruises at 7 knots burning 2.6 gph at 1600 RPM with a range of 2200 miles from its 900 gallon fuel tank.
The MJM 40z weighs 21,000 lbs. and if cruising at 7.2 knots burns 2.05 gph at 1000 RPM with a range of 1100 miles from a 350 gallon fuel tank. A 40z gives you the option to cruise at 34 knots burning 28 gph at 3400 RPM with a range of 383 miles
Designs from Hinckley, Sabre, Vicem, SeaRay, Hatteras, Viking, Ocean, Riviera, Hunt, Grand Banks, East Bay, Palm Beach, San Juan, Bertram, Back Cove, Azimut and Post were either Certified Category B or not listed as being certified at all. None were Certified Category A.
