Desert and water gardens of the Red Sea : $b Being an account of the natives and the shore formations of the coastCrossland, Cyril
Science
Desert and water gardens of the Red Sea : $b Being an account of the natives and the shore formations of the coast
Crossland, Cyril
Coral reefs and islands; Red Sea; Sudan -- Social life and customs
and yelling, which (especially the latter) is necessary to raise
the great yard. Two thick ropes, named the Fêsha, attached to the
yard pass through rough sheaves at the mast head, the other ends
being both attached to a hanging pulley block of four sheaves or
more. Through the sheaves of this hanging block pass the halyards,
which, running through a block at deck level form a tackle by
which the hanging block and the “fêsha” ropes are hauled down
and the yard of course rises. In practice there are two halyards,
both passing through the same hanging block, as there is not room
for the whole crew to haul at a single rope. The cordage is all
made of coconut fibre and there is no standing rigging, all stays
and the “vang,” or stay to the yard, being moveable and set up
with simple tackles. They may be made very useful in hauling heavy
goods aboard when loading.
There are two principal disadvantages of this lateen rig which call
for special skill. The first is that at the end of each tack in a
head wind you cannot “go about” in the ordinary way but must fall
away from the wind and wear round. In an ordinary fore and aft rigged
vessel this operation would involve gibing, the sail going over with
a violent bang which would be extremely dangerous in a high wind,
especially where the tack of the sail is fixed down forward of
[Illustration: Fig. 39. Laden _sambûk_ under sail
(_From a photograph_)]
the mast. As this sail has no boom gibing is avoided by letting go
the sheet and carrying it and the sail forward while the tack is
unfastened and brought aft, both meeting at the mast, so that the
sail is practically furled. The long yard, being balanced by its
suspension at the mast head, is brought to a vertical position,
the sheet carried forward of both it and the mast and so round to
its new position on the other side and carried aft. As there is no
tackle[33] on either sheet or tack the boat is so steered as to help
these movements and the sail does not draw until the sheet is made
fast. It is to facilitate the movement of the heavy yard from one
side of the mast head to the other that the mast slopes forward so
markedly. The operation is ingenious and calls for good seamanship,
especially in a strong wind and heavy sea, when any fault might
result in great force being unexpectedly applied to the rigging
with awkward results. Just as this is the reverse to our gibing so,
instead of carrying weather helm, the vessel falls off from the
wind instead of luffing if left to herself, and where the steersman
of a fore and aft rigged vessel would luff to a big wave or strong
squall the Arabian falls away. As there is but one sail, a large
part of which is forward of the mast while the deepest part of the
keel is aft, it is impossible to have any of the sail set when at
anchor, and so the anchor must be raised, sail set and way got on
the vessel almost simultaneously, indeed the sail must draw as soon
Public-domain text, read in full here on John Shaqi.
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