The story of Wind Song
Wind Song was the ultimate dream boat of a Chesapeake Bay sailor
named Bill Kay. Bill trained as a naval architect/marine engineer until
his senior year in college, when he switched his major to Mechanical Engineering
because he thought it might make him more employable in post-war America.
Wind Song was his last boat, and he died about a month after we bought
her from him.
Wind
Song's design was based on the Chesapeake Bay "bugeye" oyster-dredging
ketches of the 1800's. These boats, which were typically 60-80
feet long, were shallow draft, internally ballasted, centerboard-equipped
sailing vessels, usually double-ended, with bottoms
made of rough-hewn, cross-bolted logs, and with plank-on-frame
sides built up from the log bottom, which was typically 9 to 13 logs wide
-- always an odd number, so the centerboard would not be located between
logs.
To provide more working space aft, a so-called "patent stern", consisting
of a rectangular platform built on top of the pointed aft end of the hull,
was added in many cases. This also served as a base for the large, distinctive
davits that served as a hoist for the yacht tender. The bugeyes themselves
were not mechanically powered even in recent years, since, as oyster populations
have diminished, it is now illegal to oyster-dredge under power in the Chesapeake.
The vessels were usually equipped with an outboard rudder on a slanted
axis, as shown in the sketch. This gave the bugeye a rather severe weather
helm, about which more later. The sail plan was invariably a spreaderless
marconi ketch with a half-club self-tacking jib on a long "hogged" (slightly
downward-curving) bowsprit. Photos of the Edna E Lockwood and the JC Armiger
bugeyes are shown below.
Wind Song 's current dimensions are 52'6" overall including bowsprit
and dinghy davits, 38' on deck, 30' on the waterline, 10'6" wide, and 3'2"
deep unloaded with centerboard retracted, 7' with it extended. With the
dinghy on the davits she grows to 54'. Loaded for cruising she'll draw about
3'4".
She was designed by Bill Kay. The engineering drawings were accomplished
by Kaufman and Ladd in Annapolis, MD. She was laid up in solid fiberglass
over a male frame-mold (see photos below). The layup began with a commercially
available scrim called SeaFlex laid onto the upside-down mold and tacked
in place. SeaFlex consists of longitudinal stringers of cured fiberglass/resin
composite each roughly 1/2" wide by 1/10" thick, held together by a loose
crossweave of dry glass fibers. After
this material was in place, glass/resin layup proceeded outward to half
the design thickness. The whole mess was then flipped right side up, the
mold removed, and the inside layup completed. The inside of the hull was
left rough and painted, while the outside was ground smooth, faired with
putty, sanded smooth, and then painted.
The photo below left shows the hull after the outer layup has been completed,
and below right is the hull exterior after fairing.
These photos show the hull after painting
the topsides.
This photo shows her emerging from the construction shed for launching,
with the entire Kay family present.
Wind Song was originally designed to be 36 feet
on deck with an outboard rudder on a slanted counter, which is how she appears
above. As hinted earlier, in addition to the substantial inefficiency of
outboard rudders in the first place this slant caused the rudder to try
to bury the stern in the water when the rudder was steered to one side, causing
tremendous resistance to the helmsman's effort, with the result that no one
in Bill's family except Bill could steer the boat. His wife Peggy was particularly
challenged. Historically bugeyes used outboard rudders for construction economy
and hull integrity, and the helm resistance was less on the double-ended
vessels, though still pronounced.
To rectify this unacceptable behavior, Bill commissioned a redesign and
rebuild to a fully balanced inboard rudder on a vertical axis. This required
the entire stern of the boat to be sawed off and a two foot extension added
on (photos below). The result has been the almost complete elimination of
steering effort until the boat has heeled so that the lee rubrail is in the
water.
After all this, today the aft
underbody looks like this:
And yes, the discerning eye
will have recognized a bronze 3-blade MaxProp in front of the rudder, the
best cruising sailboat propeller money can buy. We really have to thank
Bill for this, and it is typical of the entire boat that he would have nothing
but the best. It is exactly the prop Lane would choose if money were no
object (which is almost never). That $3,000 marvel of engineering provides
these advantages: 1) the propeller has the same hydrodynamic efficiency
in reverse as in forward, 2) the pitch is adjustible to match the power
characteristics of the motor perfectly, and 3) the blades feather to the
water flow when the motor is off, presenting virtually zero drag. And since
this prop operates free rather than encumbered in an aperture, it's design
efficiency is actually achieved. With this prop and a 4-cylinder, 108 cubic
inch, 40 hp diesel Wind Song motors at 7.1 knots with a hissing wake
in flat water at 2400 rpm -- remarkable for a boat with a maximum theoretical
hull speed of 7.34 knots -- yet under sail she handles as if there is no
prop at all.