CATAPULT CRUISING: A SHORT
TRIP DOWN THE THAMES
This
was a downstream cruise from Aston (a couple of miles below Henley)
targetting one or two retrieval sites. The
packed last day of the Henley regatta was just upstream above
Hambledon Lock, but
this was launching from the end of a quiet country lane with easy parking. The
breeze conformed to Windguru’s promise of South-Westerlies
8-10 mph, a good
direction for the sinuous run west down to Hurley and the first of
the bridges.
(Below: Only a Catapult can do this--- tilting the mast
to miss trees hanging over the launch site--an old ferry crossing, very
basic.)

The view above sums up the attractions and the difficulties of
cruising the Thames-- the breeze rippling the sun-dappled water, with
the mixture of real countryside and the interest of the waterside
buildings--- and
the downside that trees crowd the sailing water and
thin out the breeze.
The run east from Aston again brought back the attraction of slipping along
between fields, and
past
occasional houses--and also the frequent frustration that trees brought the breeze back
down to a whisper---Thames cruising really needs 12 to
15 knots of breeze.
(Right: Catapult in Hurley Lock)
Again it is only the Catapult and only the Classic rig that can do
this easily --the sail wraps around the mast, and the boom
is tightly lashed up the mast, to go into locks (paddling or
rowing.) For bridges I can lower the wrapped sail and
mast back, to glide through (usually
successfully for the shorter bridges) with the heel of the
mast tied down firmly into the socket.
It has to be said that re-rigging the sail on the water on the far
side of bridges and locks takes time (and can involve a bit
of dashing back and forth across the river as puffs catch
the part-set sail.)
(Below: the oars in position--they can scoot the
boat along: see bottom of the page for more.)
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A second reminder of past lessons is
that cruising
the Thames is much better on a weekday, with shorter waits at the
locks --if
not too long, the waits are
very pleasant in the sunshine with quiet action all around, and the
little Catapult gets a fair deal amongst the cruisers, but
the waits add up.
The next good sailing stretch is the long approach to Marlow from Temple
Lock, the
breeze usefully funnelling down the river, and a suitably
picturesque church at Bisham. (Photo below) (The
photo also shows part of the forestay blocks allowing the mast to come back
for bridges, resting on my shoulder while we drift through.)

Above: Heading northeast
with the breeze behind, down the long approach towards Marlow, a
good Thames view! Then through Marlow's bridge and lock into the
wooded stretches below the hills around Cookham and so back to slow gradual
progress. Eventually, more open fields in the stretch before
Bourne End brought better wind with small dinghies
and the A-Raters (with their huge rigs) racing in front of the club,
before the railway bridge.

After Bourne End the southwest breeze comes across unobstructed
fields with easy sailing down to Cookham Bridge, with dinghies out in force from the
next club. The
end of the (small) voyage was marked by Cookham with
its pub-side launching ramp (again a small
scruffy earth ramp,
a 300 year-old ferry legacy.)
Cruising the Thames is strictly one way, ensuring the breeze is
broadly with you, as dead
spots amongst trees will prevent real progress upwind,
especially against the small current.
This time the return was a smoothly executed
by a set of short train rides back to Henley, with the plan
to get a cab to Ashton-- but it was more pleasant and interesting to
walk the couple of miles in the sunshine through the departing Henley crowds (
rugged rowers and Hooray Henrys) and finally the Queens Barge coming
bizarrely upstream from the regatta start.
(Photo below)
Alastair Forrest

More
on rowing Catapult The row-locks mountings are
very simple, as in the pictures below---just fairleads screwed
to the beams. (There is no significance in the different
shapes, just ones I had, although I guess the metal ones with
short screws are stronger.)
The row-locks themselves are secured
on the oars, not in place on the boat (as they could give a
nasty injury!) The width of the boat just happens to be very
suitable.
The fore-and-aft position was guessed-at to give a reasonable bows-down
trim, and it rows very easily. However, it is so far forward
that rowing with the Classic sail in place is very awkward---so
I row only in locks etc when the Classic sail can be wrapped
tightly around the mast, with the boom tied up vertically, as in the photo above. If I had to row any distance (for instance in a long
narrow channel with the breeze masked) I would put the
sail up like that.
Alastair