The Shannon 52 Global


Designer Walter Schulz

Length on Deck 51' 11"
Length Overall 54' 7"
Length on Waterline 42' 7"
Beam 14' 3"
Draft - Fixed Keel 6' 8"
Draft: Centerboard Up 4' 9 " Centerboard Down 8' 7"
Mast Bridge Clearance 64'
Displacement 44,000 Ibs.
Ballast 13,500 Ibs.
Engine 125HP or twin 75HP
Water 180 gal.
Fuel 300 gal
Waste 50


Keel/centerboard or fixed draft
• Linear PVC foam-cored composite hull hand laid up with isopthalic gelcoat, vinylester resin veil coat, bi-axial laminates and Kevlar hybrids
• Ten year hull and deck laminate warranty
• Internal solid lead ballast, encapsulated and sealed within fiberglass laminates (no keel bolts)
• Reinforcing stringer grid with extra 45x45 degree bias bi-axial laminates
• Reinforcing laminates in the bow, keel, and transom
• Hull to deck joint bonded and thru-bolted every eight inches, with bi-axial laminates backing the internal hull flange
• Skeg mounted fiberglass rudder with stainless steel rudder post and internal reinforcing plate
• Epoxy barrier undercoat and two coats bottom paint
• Awlgrip boot top - owner choice of color
• Vinyl graphic name and hailport


• 125 HP Yanmar 4JHTE or Twin Yanmar 60 HP dual engine option
• Oversized Powerline 200 amp engine alternator with external voltage regulator
• Dual custom engine panels with full gauges and alarms
• Hurth type mechanical transmission, 2.76 to 1 reduction
• Three-bladed polished bronze propeller (feathering props for twin option)
• Aquamet 22 stainless steel propeller shaft
• Custom stainless steel shaft tube with removable cutless bearing
• Internal bronze propeller and rudder stuffing boxes
• Two independent diesel fuel ystems (300 gallons), two 5052 aluminum alloy tanks
• Racor water separator primary fuel filter
• Lead lined acoustical foam insulation in engine room
• Groco engine raw water intake strainer
• Engine room 12 VDC lights


• Custom layouts to owner's specifications
• Primary bulkheads 1" with solid hardwood cornerposts and trim
• Solid teak and holly cabin sole with access hatches
• Gloss varnished 6 coats on joinerwork standard, with owner's choice of mahogany, cherry, or teak, including wood ceilings against all hull surfaces with cedar lining inside all hanging lockers
• Overhead fiberglass panels with hardwood battens and removable access panels


• Wheel house doors and hatches
• Sixteen stainless steel or polished bronze opening ports with screens
• Five stainless steel deck hatches - forward cabin, wheel house (2), dinette, and galley
• Two 4" stainless steel or white PVC cowl vents on baffled dorade boxes


• Gimballed stainless steel three-burner with oven propane stove
• Two 10 Ibs. propane tanks in vapor proof locker
• Propane shutoff solenoid control in galley
• Deep double stainless steel sink with H/C pressurized water and single lever fixtures
• Foot pump backup to pressure fresh water system
• Ice box with minimum 4" foam insulation, vapor barrier, top and side access hatches, plexiglass shelves and dividers, separate ice box pump out
• Seafrost cold plate refrigeration with engine drive and 110 VAC assist compressors


• Pressure hot/cold water with single lever fixtures
• Twelve gallon stainless steel hot water heater with engine water heat exchanger/110 VAC system
• Two marine heads with holding tanks and deck pumpout
• Shower sump pumps with overboard discharge
• Full-way bronze seacocks, ABYC approved
• Heavy duty rubber hoses with double hose clamps on all fittings
• Two separate self-trimming and isolatable water tanks (180 gallons), 316L stainless steel
• Two ShurFlo 3.3 GPM fresh water pressure pumps
• Whale Gulper 220 electric bilge pump with automatic float switch
• Whale 15 GPM manual bilge pump in cockpit


• Six 115 AH Group 31 gel-cell marine batteries
• Bass electric panels for DC and AC systems with built-in battery switch, ammeters and voltmeters
• Dockside 110 VAC power system with 50 foot 30 amp shore power cord
• Twelve overhead dome lights, ten bulkhead mounted halogen reading lights, four under-counter flourescent lights; in stainless steel of brass finish
• Red/white aircraft-type chart light
« Lightning ground and electrolysis bonding system
• Two 12 VDC outlets and eight 110 VAC GFI outlets


• Standard Horizon VHP radio with RAM remote
• Raymarine ST60 depthsounder
• Raymarine ST60 knotmeter
• Raymarine ST60apparent wind speed and direction indicator
• Raymarine ST60 Multi repeater
• Copper band ground plane in hull for possible SSB antenna installation


• PVC foam cored deck and wheelhouse - hand laid up with biaxial laminates
• Custom diamond pattern fiberglass non-skid with contrasting gelcoat color
• Mainsheet traveler bridge with adjustable mainsheet traveler car
• Nine wheelhouse windows with safety glass, including four opening side windows with screens and removeable Lexan storm covering boards
• Six oversized stainless steel deck and mooring cleats, four recessed deck chocks, two anchor rode deck pipes
• Two cockpit coaming storage compartments
• Bow platform with two anchor retainers and rollers
• Double rail stainless steel bow and stern pulpits, with separate running lights
• Stainless steel stanchions with double lifelines and port and starboard boarding gates
• Interior and exterior independent dual Edson wheel steering systems with Ritchie compasses, engine controls, stainless steel destroyer type wheels, and pedestal guard with wheel brake
• Drop down transom door/boarding platform and swim ladder
• Exterior teak grabrails
• Thru-bolted teak toe rail and upper rub rail with stainless steel striker
• Gloss varnish on all exterior teak (6 coats) Option - reduced exterior teak for easy maintenance


• Oversized custom aluminum Awl-gripped keel stepped mainmast and Leisurefurl roller boom
• Bow/foredeck and sidedeck lights, international tricolor and anchor masthead light
• Solid stainless steel chain plates thru-bolted to transverse knees with 1/2" stainless steel bolts
• Navtec solid stainless rod rigging with external tangs and open barrel turnbuckles
• Lewmar Ocean Series winches: Two 66 CST two-speed 12 VDC electric self-tailing primaries, two 54CST two-speed 12 VDC self-tailing main sheet and main halyard ,one 30C two-speed halyard, and three self locking winch handles (or Andersen equivalants - owner choice)
• Owner's choice of sailmaker and Shannon Self Tending Scutter rig.
• Main for Leisurefurl, yankee jib, and lazy jacks


• Flares, radar reflector, six Type 1 lifejackets, first aid kit, fog horn, flashlights, three ABC fire extinguishers
• Emergency tiller, wood seacock plugs,
• CQR 65# and Danforth 20H anchors, two 200' 5/8" nylon anchor rodes with 50' 3/8" HT chain, dock lines and fenders
• Spares kits for engine, head, and electrical system
• Owner's manual with systems diagrams


• Site inspections welcomed and photographs supplied during construction
• Boat delivered in the water in Rhode Island with all systems tested and working
• Owner checkout, seatrial, and docking drills.



The goal of the new Shannon 52 Global design concept variations is to create another dimension of comfort, utilizing the sea tested Shannon 47/52 hull. The additional comfort is provided by a wheelhouse with an “almost conventional” cockpit behind. The object is to enable people to get out of the weather - sun, rain, cold, or heat. For the times with good conditions, there is a second outside helm along with a large sitting area.

Since most long distance voyagers are husband and wife sailing teams, the other goal of the new design is to eliminate work, especially winching and handling sails. The main sail on the S52 Global uses an electrical operated roller furling boom. The headsail is also roller furling with a self tending club boom to eliminate headsail winch work when tacking. One person is able to raise, reef, or lower both sails just by pressing a button. In the event of any mechanical failure, the sails can be operated manually. Bow thrusters will also be standard for ease of docking in tight quarters. Twin engine propulsion is also available for mechanical redundancy and maneuverability.

The Shannon 52 Global also addresses the trend for some people who purchase single screw displacement trawlers for long distance cruising to avoid the work and the open cockpit effort found on most sailboats. While the popularity of displacement trawlers is understandable in the abstract, the reality of total reliance on mechanical equipment is somewhat disconcerting. It is common knowledge that the dependability of diesel engines is very high, but things do break and engines can refuse to run. The tiny auxiliary “get home” engines found on many of these trawlers are far too small to operate the boat safely during bad weather. Even Robert Beebe in the original edition of “Voyaging Under Power” recommends using twin diesels of the same size for safety, reliability and redundancy. Compounding the trawler issue is the use of extremely complicated fin stabilizers to keep the trawlers from excessive rolling. The satisfactory operation of such stabilizers if the primary engine is not running is problematic. Also, most mechanical active fin stabilizer units are not designed to prevent rolling when the boat is at rest at an anchorage. The deployment of manual paravanes or “flopper stoppers” requires a great deal of labor and crew coordination.

Another issue with displacement trawlers is the availability and quality of diesel fuel, especially in remote parts of the world. Fuel loaded with water can cause big problems. As we have seen recently, as well as back in the 1970s, oil is a volatile commodity, dependent on stability in very unstable areas of the world.

Granted, the Shannon 52 Global, or any boat that can really sail, does not have the interior volume found in almost square shaped trawlers. However, the Shannon 52 Global does provide all the necessary interior volume for a couple and guests to travel the world in luxury. In addition, the Shannon 52 Global will travel thousands of miles through storms and rough seas without the fear of being stopped by mechanical or fuel problems. The Shannon 52 Global does carry enough fuel to power without sailing for over 1000 miles. And the hull shape coupled with the balancing effect of the mast alone even without sails prevents rolling. Using the sails in conjunction with the diesel engine gives the Shannon 52 Global unlimited range. Most of all, the Shannon 52 Global can always sail right out of any harbor in the world and get you to the next port or home. And there is a place to go for those who have reached a point in their life when they know it is time to come in out of the rain.


The Shannon 52 Global is available in a sketch or scutter rig (scutter shown to the left) which are designed so that no manual work is necessary. The headsail is self tending and without winches.

Watch the video on the Shannon Pilot 43 to see how effortly the singlehanded sailor can raise and lower the sails.

Shannon 52 Global Deck Plan
The Shannon 52 Global has a single or twin engine option
(above) The Bitchin Edition "Latitudes and Attitudes'" magazine founders, Bob and Jody Bitchin, who along with Walt Schulz, designed the interior layout for their new 52 Global Attidude , which is scheduled for completion in 2009.


Copyright © 2007-2009 Schulz Boat Co.