Back in June we had a nice sail around Maumee Bay, and
coming back we had to beat into the wind.
Unfortunately the knots in the loop of line securing the sheet block to
the main sprit boom came undone and we were left with an out-of-control
mainsail, just as the wind was becoming brisk if not fierce. Not to be deterred, I left my friend Michael
at the helm and grabbed the end of the boom with my hand. Every time he tacked (and it was several
times) I changed hands and sides and held on for dear life as the boat bucked
the waves. The virtues of two masts with
smallish sails and the gentle behavior of the rig were apparent. We made it to the ramp with no trouble. Until, that is, I tried to bring the trailer
around for retrieval. I looked left and
right, started moving out of the parking spot, looked behind to check the
trailer, and then bang! I had a
low-speed collision with an SUV that was not supposed to be there. He had snuck around from the wrong side of
the parking lot behind two parked trucks, zoomed along and ended in the wrong
place at the wrong time. Anyway, a waste
of time and money and a nuisance but no harm done.
Going out was fine, like the last time. With a fair wind it took us no time to sail
out to Maumee Bay State Park, where we beached the boat and had a quick
swim. I say quick, because the algae
bloom was pretty bad so it was neither pleasant to look at nor particularly
safe. On the way back the same thing
happened: we had to beat into an ever-stiffening wind and whitecaps. As the wind got very strong, I was keeping a
wary eye on the mainmast that was bending quite a lot. I said to Michael, “you know, it would be
really bad if the mainmast failed.” As
soon as I said it he pointed out that the mast was starting to delaminate at
one point above the foredeck. I did not
bother to check it myself: I gave the helm back to him and dropped the
mainsail, hoping to get in just by the mizzen, or by rowing if that didn’t work
out.
Now I know what happens to a cat ketch with no
mainsail. It would not tack so we had to
wear (turn through a gibe). A sprit boom
is much gentler than a regular one in a gibe, but still. One time the boom tip knocked Michael’s hat
off his head and he steered us back so I could retrieve it with the
boathook: a flawless maneuver that gives
me some confidence that we can deal with a man overboard situation. But every time we wore and gibed we lost
whatever way we had made and were not moving.
So I decided to drop the mizzen sail, unstep the mizzen mast and row
in. In my haste I let the yard down too
quickly and it hit me on the forehead, causing a scratch that bled quite a bit
(for a short time fortunately). We then rowed
in the teeth of the waves and wind for over an hour. It was incredibly hard work we but made it
back for a well-deserved picnic.
So now what? In
designing the masts, I had not taken into account the fact that a lugsail is
attached to the mast in only one place, at the very top where the yard is
secured with halyard and toggle. Hence
the very noticeable bend. The bending
stress clearly found the weakest spot, a scarf joint on an outer layer of the
three laminated together. Interestingly
there is much less bend and no problems so far with the mizzen mast.
I first considered two options: making new aluminum masts,
or wrapping the existing masts in two layers of fiberglass tape. Both are costly and would require a lot of
work. Fiberglass would also increase the
weight, and for aluminum masts I would need to learn new skills and get new
equipment (a pop riveter, say, as well as new hardware). I therefore settled on a partial approach:
only reinforce the places where there are outer scarf joints (two per mast)
with fiberglass tape. Bending per se is
not a problem: it actually helps by flattening the sail and spilling wind in
when it blows hard. So I will try again
and play it by ear. If this is not
enough then there are plenty of other options.
Aluminum masts won’t look as nice but are stronger per pound of
weight. And much as I hate to give up my
one-of-a-kind rig and beautiful hand-made spars and sails, the boat can always
be re-rigged. A gaff sloop would be a
good candidate.
Another thing I decided after all these adventures is that
having an auxiliary engine is a good idea.
I will therefore accept a colleague’s offer of a very old, light and
low-horsepower outboard.
But I hear you say, what about the leak, is it
vanquished? Alas, not quite. Every time I tinker it gets smaller (down to about
1.5 liters/quarts after more than five hours) but hasn’t gone away yet. I think there is a tiny void at the aft end
of the centerboard slot. I hope this is
the end of it.
Until the next report.
boatbuilder
