Oars and Outriggers
As with any tools of a trade or profession
whether it be medicine, mechanics or rowing
the progress over a period of time is an obvious
transition from the crude to the more refined
. And the oars at the start of Tech rowing
seemed good compared to some retained as older
spares which had the feel unwieldy clubs.
So it is also with outriggers that make the
oars effective in propelling a shell.
At the time of the first rowing experience
at Tech oars and outriggers were only part
way through this development up to the present
state, and is still proceeding rapidly. Sweep
oars have long been standardized at about
12 foot length with 30 to 36 inches of blade,
2 inches from the butt end, which leaves a
lot of room for playing with details by observing
coaches, feeling oarsmen and thinking followers.
Slenderization for lightness resulting in
breakage brought about strengthening shapes
and materials to avoid one of the trauma of
traumas of an oarsman,- breakage of an oar
or catching a crab during a race. Other failures
are not so obvious though perhaps equally
destructive of success.
Circa 1910 oars were of one piece, pine or
spruce for lightness, clear of knots or flaws
that could reduce strength, blade end metal
tipped to prevent splitting, blade flat but
curved to entrap the water and the leather
buttons held in place by a continuous ring
of nails. One of these early oars might look
pretty good cleaned up and standing with others,
but would feel rather clumsy in hand and suffer
in detail by comparison.
Shafts changed from solid to solid but with
either one or two grooves cut from button
to blade, on opposite sides force and aft
with the blade in pull-through position. Then
the shafts were laminated by a web in the
center of the shaft from butt to the blade
in the position of the grooves and a hollowed
out piece above and below making to bi-tubular
and assembled by glue. At about the same time
blades were spooned in two planes with a ridge
longitudinally in the center. Also the blades
were built up with strips glued to either
side of the central shaft. While wood was
still a relatively inexpensive natural material
the main sources of clear stock was becoming
depleted and excessive waster control necessary.
In due time the final indignity arrived in
the form of a plastic blade attached to the
shaft, cheaper and more efficient perhaps
but still a departure from good craftsmanship.
Wood a fibrous cellular substance provided
by nature and for its specific qualities has
always been used for oars and boats, especially
of rowing type. Where is the wood now, in
either shells or oars. First the plastic blades,
then the fiberglass shafts and now the advancement
to carbon fibers of amazing strength and durability.
Once the wood had to be protected against
fracture and rot by protective coats of varnish,
plus care in handling, molded oar forces far
beyond those expected to be encountered in
normal use. Even the decorations of esthetics
and identification using paint, which fades
and wears away, are now molded into the synthetic
materials and are everlasting. Though economically
practical compared to a beautiful article
of wood, the dirty black shafts of unfinished
appearance compared to the sleek varnished
wood will eventually be made equally beautiful
with color and finish. Changes are justified
by results.
Even though rowing in the United States has
brought about many of the innovations in rowing
equipment and techniques, foreign influence
has had its influence. The Ratzeburg crews
of Germany have provided shell, oar, out-riggers
and techniques that have been copied worldwide.
The early Tech shells had outrigged fabricated
of iron rod, sometimes six and sometimes five,
which suspended the swivel and conditions.
These outriggers added weight and offered
a drag when in contact with water either when
the shell lurched to one lurched to one side
or the other or due to the height of waves,
always detrimental to the speed of a shell.
With hollow alloy tubing improvements in weight
and water interference was made, further helped
by the reduction of number of arms and an
increase in elevation above water. The design
and arrangement at present offers far less
effect on further improvement cannot be made
by some ingenious means. Outriggers are already
down to, in some cases. two tubular arms of
reduced weight and resistance.
During the span of time of rowing at Tech
the swivel lock has been used in essentially
the same form and function. Yet we have had
one experience of throwback to the Thole Pin
or Box Lock in universal use until the swivel
lock was invented and introduced by American
oarsmen in the late 1800's. Yet this monstrosity
was retained by the purist college oarsmen,
opposed to violation of tradition, until well
into the 1900's.
In the middle 1920's after Tech had become
an official rowing institution there was a
great scarcity of equipment without normal
means of procurement. There were gifts, physical
and financial, that were much appreciated
and sources investigated for more. One was
through a source in England in the form of
a contract to acquire a possible total of
15 shells over a period of years that had
been used by Oxford and Cambridge crews in
their traditional competition. In 1925 the
first two of these shells arrived complete
with oars, riggers and rudders to augment
the overworked inventory at Tech. As was the
custom, the shells were named "Childe
Hale" and "Mary of Winston"
but were also very British by having Thole
Pins or Box Lock rather than Swivel Locks
on the outriggers and odd looking leather
and buttons on the oars. Whether in anticipation
of their use or just to try them out for instructional
interest and to satisfy nostalgia in Bill
Haines one of these shells was immediately
rigged for use and tried out by Varsity and
other venturesome crews. It was an interesting
experience but conversion to our standard
arrangements was carried out without delay.
Thole pins on a fishing dory or work boat
are two vertical pins set in the gunwale of
a boat to act as fulcrums on each half of
a stroke. On a shell they were ion the outboard
end of the outriggers, eight or ten inches
apart and connected across the top by a bar
to restrain the oar from jumping out, thereby
making it a box lock. At the angularity of
oar at the catch the oar would be touching
both pins and move the shell. At the end of
the pull-through the oar would again be touching
both pins and on the recovery pivoting on
the rear pin. In between and until again in
the catch position the oar could rattle around
in a big space depending on the effect of
wind, waves and the control of the oarsman.
Furthermore, when at catch, the button might
be at the forward pin, on reaching the rear
pin the point of contact could be inches toward
the blade and this walking action continued
unless the rower continually kept forcing
the oar outward in the box. All of this seemed
to be a very sloppy and uncontrollable arrangement
quite unsuited to rough water or inept rowers
compared to the closely confined security
of a swivel. Any attempt to lengthen the stroke
at either end was impossible with the oar
in contact with both pins and with a shortened
stroke at a high rate or under stress the
oar would hit a pin with a bang and be quite
upsetting to good rhythm. There was no consideration
o four adoption of the box lock.
For many if the early years there were few
full sets of matched oars even though new
oars came in sets of ten. Breakage was frequent
and mostly irreparable. Anything old or used
could vary in length or shape. In 1921, the
manager was sent to Worcester to pick up oars
from the discontinued Norton Boat Club, which
turned out to be considerably shorter than
the then current standard. The bi-tubular
oars were a design and manufacture of Ted
Shea in Springfield, Mass. and were essentially
the standard for many years, except for a
similar oar made by the Pococks. And perhaps
the last real improvement in wooden oar was
the addition of a lamination of ironwood,
(American Hornbeam) on the back side of the
shaft as a strengthener.
With the advent of the use of plastics and
fibers in the construction of shells there
naturally came the use of similar materials
in the manufacture of oars. Glass and then
carbon fibers with resin binder are ideally
suited to molding into shapes, with in the
case of oars, the option of leaving a central
void for lightness where strength is sacrificed.
A leader in this field has been Concept II
designed and made by the Driessigacker brothers,
who have been true to M.I.T. influence as
their father was of the class of '37 though
they chose to do their rowing at other institutions.
Furthermore the button on the oar had to be
big and curved to restrain it but the oarsmen
had maintain outward pressure to oppose the
tendency of the oar to walk inward. With the
button in contact with the pin at the catch
the point of contact with the other pin at
the end of the stroke would be wedge the oar
between the pins and a shortening of the stroke
would leave the oar floating somewhere in
between. A blade clipping a wave in mid-recovery
could leave the oar rattling around like a
loose cannon. |