Irwin Yachts "Classic 32"
Ted Irwin (1970)
Modified in-house by Dennis Robbins.
HULLS: Approx 600
• Standard: 4'2"
• Centerboard: 3'6" / 7'10"
DWL: 43' 0"
SAIL AREA: 470 sq ft
100% FT: 257 sq ft
MAIN: 207 sq ft
I = 39'6"
J = 13'0"
P = 34'6"
E = 12'0"
See Rigging Specifications for specifics
FUEL: 20 gal (diesel)
WATER: 65 gal (hot/cold)
HOLDING TANK: 15 gal
D/L RATIO: 315
(less than 100 = ULDB
100-200 = light,
200-300 = medium,
+300 = heavy)
SA/D RATIO: 14.59
(14 = low, 22 = high)
BAL/D RATIO: 42.73%
(33-45 is average, higher=more stablitiy)
CAPSIZE RATIO: 1.76
(Less than 2.0 is prefered)
MOTION COMFORT: 30.38
(RANGE = 5 - 60: Higher number means more comfort in a sea)
HULL SPEED: 6.8 knt
ANGLE OF VANISHING STABILITY: 114°
19751978 KC (8.6mb)
1975 Promo (67k)
1975 Spec Sheet (141k)
1981 Spec Sheet (156k)
By Practical Sailor
E32 Mast Access (8k)
E32 Sail Plan (1979-82) (452k)
D E S I G N&H I S T O R Y
The Endeavour 32 began life back in 1970 as the Irwin "Classic" 32. Ted Irwin designed her as a dual-purpose cruiser-racer before the development of IOR. By 1975, the IOR was in full swing, and boats such as the Irwin 32 were obsolete as racers, since PHRF had not yet emerged to help handicap non-competitive boats raced at the club level.
Although the Irwin 32 had been out-designed for racing, the hull was still a nice, clean, conservative, and comfortable design for cruising. The molds for the Irwin 32 formed the basis for Endeavour Yacht Corporation, which built about 600 Endeavour 32s until 1982. Our current membership records show hull 574 being built in January of 1982.
Although the Irwin 32 and the Endeavour 32 look identical and have the same displacement, the E32 is listed by the builder as 4" wider, and 4" longer overall, and 6" longer on the waterline.
The Irwin 32 was originally available as a keel/centerboard boat drawing 3'6", or with a long fin keel drawing 5'. The Endeavour 32 was originally built as keel/centerboarder with the same configuration as the Irwin 32 (3'6" board up, 7'10" board down), or with a fixed shoal keel with 4'2" draft. The original Irwin deeper keel was discontinued in 1979 in favor of the shoal keel version. Among the modifications were a different coach roof line and port configuration, cockpit coaming modification, additional interior storage and access, galley modification, integral companion way stairs, and a teak cabin sole.
H U L L&D E C K
The hull is molded as a single unit of a combination of polyester resin and fiberglass woven roving and multidirectional chopped strand fiber (MCSF). The keel is molded integrally with the hull and all ballast is contained inside. The deck and cockpit, like the hull, are molded as a single unit of a combination of polyester resin and fiberglass woven roving and MCSF. Plywood coring is incorporated between layers of fiberglass in the cabin top, deck, seat, and cockpit sole areas to give additional stiffness. The non-skid finish is molded into the deck. The exterior finish is pigmented gelcoat molded onto the fiberglass. The boot and sheer stripe are also gelcoat molded permanently into the hull.
The hull-to-deck joint is a 'flange' type, which during assembly, is liberally coated with a combination adhesive/sealant. The deck is then lowered onto the hull and fastened in place with stainless steel thru-bolts. The toe rail is then installed, bedded in a heavy layer of the same compound and secured in place.
There is an anchor well at the bow with a haws pipe feeding the anchor rode into the v-berth locker, there are teak grab rails on the cabin top and a large aft cockpit with good back rests and storage lockers. The companionway goes down to seat height, about 12" above the cockpit sole, and has three drop boards.
R U D D E R&S T E E R I N G
The rudder is molded as a single piece of solid high density foam with a protective skin of fiberglass and a gelcoat finish. The rudder post, molded integrally with the rudder, is solid stainless steel, which is welded to a steel blade in the interior of the rudder. Where the rudder post passes through the hull, water tightness is ensured by means of a stuffing box.
The pedestal steering system (24" Edson wheel) operates with stainless steel cables rotating a quadrant bolted and keyed to the rudder post.
S P A R S&R I G G I N G
All spars (mast, boom, and spreaders) are extruded aluminum 6061-T6 alloy, with a protective coating an all external surfaces. The main mast on the E-32 is stepped on deck with a supporting post immediately under the mast inside the cabin. The masts and booms we've seen on the E32 were Kenyon single spreader masts, and booms with single reefing capabilities and sheeting about 2/3s the way aft attached to a companionway traveler.
The standing rigging is made of stainless steel wire. The forestay attaches to the stem head fitting at the bow. This is fabricated of welded stainless steel backup plates and through bolted to the hull. All other stays and shrouds are attached to chainplates at the edge of the deck and are through bolted to the hull. Additional fiberglass reinforcement is molded into the hull in all chainplate areas. The forestay, backstay, and uppers are made of 1/4" stainless steel wire, and the lowers are made of 3/16".
All halyards were originally stainless steel wire rope with Dacron line tails to minimize stretch and reduce windage. All halyards are run externally to #32 Lewmar winches mounted on the mast. Sheets are led to #40 Lewmar self tailing winches in the cockpit. Sheet lead blocks clip to the toerail. The main sheet traveler is mounted on the companionway 'bridge deck'.
I N T E R I O R
The interior of the Endeavour 32 is a molded fiberglass unit with bulkheads and cabinetry fastened to it with screws, bolts, and adhesives. The entire unit is pre-assembled outside the boat and then placed inside a hull with ballast and engine already in place. It is bonded in place with woven roving and mat, that when completed, forms a single unit structure having great strength and rigidity.
The interior is finished with varnished teak with soft white overheads. The cabin sole is teak parquet. The interior layout is typical with a V-berth forward, the head (to port) and lockers (starboard) divide it from the main salon area which has a fold-up dining table. The port side settee pulls out to create a double berth, the starboard is a single. Aft and to port is a pilot berth and to starboard is the galley which originally came with an icebox and either a gimbaled 3-burner alcohol or gas stove with oven. The electrical panel is located immediately under the companionway, and the stairs remove to allow access to the engine.
There are 10 opening ports (Beckson) and two large Atkins-Hoyle deck hatches (strong drop forged aluminum with 3/4" Lexan), one each over the v-berth and salon area. Early model boats had 6 opening and 4 large fixed ports.
A U X I L A R Y
All Endeavour 32s came with diesel engines, but many different engines were used. In the 1975, 76, and 77 models, a 12hp Yanmar (1QM) diesel was standard equipment--fine for flat calms but not enough power to push to windward in any wind or sea. Some boats in the same period were equipped with the Westerbeke L-25 engine, and others with the Yanmar 2QM20 (22hp 2-cyl) which was available in the late 70's. While the bigger Yanmar became standard in 1978, a 3-cylindar Universal diesel of about 24hp was also an option in late model boats. In the early 1980's Yanmar replaced the QM series with the GM series engine. The 2GMD replaced the 2QM and Yanmar added the 3GMD (22hp 3-cyl) to the line.
Our 1982-E32 has the 3GMD series diesel engine and is fitted with a geared transmission. Many boats today however have upgraded their engines with the 2GM20 (18hp) and 3GM30 (27hp) engines which Yanmar introduced in 1983.
The propeller shaft is made of 1" stainless steel and exits the hull through a stuffing box. It is supported at the inboard, or engine end, by the shaft coupling, and at the aft end by a cutless bearing in a cast bronze strut.
The propeller is a 16" 2-blade prop although a 3-blade was an option.
The exhaust system utilizes the Vernalift Marine muffler. In Yanmar engines, the water pump draws water through the engine intake port, circulates it through the engine block, and then into the muffler. The water is mixed with the exhaust gases in the muffler and discharged overboard through the exhaust port.
E L E C T R I C A LS Y S T E M
Virtually all wiring is located high and accessable by removing panels from under the side decks. All wiring is 10 gauge stranded copper with crimp type connectors used at all junctions or terminals. All wiring is color coded with DC wiring as two wire and AC as three wire. Metallic fittings (through hulls, etc.) below the water line are electrically bonded together with 8 gauge copper wire and connected to the ships common ground. The standard battery configuration consisted of two 12-volt batteries connected in parallel to allow single or combined use and charged from the stock 35 amp Hitachi alternator.
S OW H A TD O E ST H I SA L LM E A N ?
I'm sure I'm not alone when I look at any given boat and think to myself "but what kind of boat is she really?" Sure, we can read through all the stats and reviews, but what does all that really mean, how does the boat really sail.
When we look at the numbers of the E32 we see a moderate boat, however this can be deceiving. First lets look at the displacement to length ratio. At 315 there's nothing to write home about especially when we look at other cruising boats on the market today with numbers in the 200's. This number however is very deceptive since the E32 is relatively narrow and heels early, thereby extending the waterline significantly. When the wind picks up, she's a wolf in sheeps clothing. Also, displacement figures are not very reliable when it comes to cruising boats and the loads they carry. Just think of all that "stuff" you need to bring aboard for any type of cruise and how that will affect any boats performance. Realistically her displacement and wetted surface area keep her from moving in very light air. As the wind picks up (+10kts), she gains speed and the water line begins to stretch out. Her narrow beam allows for good directional stability and keeps the bow from "digging" in like many wide stern boats being built today.
As for the sail area to displacement ratio we see a low one registering in at 14.59. Basically this tells us that for this given size boat we have a small sail area and therefore small sails. This means it's a bit easier to handle and doesn't require an early reef. The trade off however is less "horsepower" in lighter winds. We can typically sail with a full sails (main+150) to about 20knts apparent. With a stout mast and simple but sturdy rig setup, there's little to pay attention to here once the mast has been properly tuned. Other trade offs can be found in the outboard placement of the shrouds and lack of inboard tracks which prevent the boat from performing as well when close to the wind. However we regularly sail as close as 45° in a breeze, less so in lighter air. To compensate for the light air sailing in our region (Chicago) we have a 150% genoa and an asymmetrical spinnaker that make a big difference. Designed primarily for sailing the Florida Keys, Bahamas, and Caribbean Islands she loves reaching conditions, and as her waterline stretches out she really gets moving. I've found that we can regularly expect 7knts on the speedo and have experienced 10knts while surfing down 4-6ft swells in a following breeze. She can become a bit 'squirrely' when sailing down wind--this a result of a number of factors. Any boat can loose steerage when waves overtake a boat, but the curvy stern and shallow fins tend to increase this tendency. We tend not to sail dead down wind as a result (about as far as 150°), and watch the sail trim to minimize the rolling motion from seas on the aft quarter.
One admirable characteristic of the Endeavour 32's performance is that the hull almost never pounds in a seaway and the boat can be easily handled by a small crew. So many times, heavier cruisers turn in faster passages than lighter ones simply because the crew is better rested from not having to micromanage the boat.
It's a simple, forgiving, stout cruising boat.