MK 0
4
I
- GENERAL DESCRIPTION
Note : names in bold refer to parts shown on the exploded view (next page)
The PROFURL MK0 in-boom furling system includes :
1. One set of
luff profiles
(1 and 2) articulated on the aft face of the mast .
There are 2 different kinds of
luff profiles
: one
0.40 m long
feeder profile
(1) on which the
feeder
(21) is attached, and several 2 meters long
normal
luff profiles
(2)
depending on the
mainsail’s luff length. One of these 2 meters long
normal
luff profiles
(2) will be re-cut to
length at its upper end to match the expected luff length of the mainsail. The different
luff
profiles
(1 et 2) are connected to each other by mean of
connectors/articulations
(4),
which are fitted to
articulation brackets
(5) that will be attached to the mast track.
2.
Articulation brackets
(5) attached to the mast with 2
slide screws
(7) slipped in the mast
groove. Every
slide screw
(7) has a thread and a flat end going through a hole of the
articulation brackets
(5). The thread of the
slide screws
(7) receives
a washer
(33) and a
locknut
(8) for attachment.
3.
Connectors/articulations
(4) are also used to connect the different
luff profiles
(1 and 2),
held by
set screws
(9). The lower end of the 0.40 m long
feeder profile
(1) will be
connected onto the
gooseneck articulation
(10), thus allowing the
luff profiles
(1 and 2) to
rotate together with the boom.
4.
A
sheave box
(11) through which the original mainsail halyard is passing. The sheave box
(11) will be fit at the top of the
luff profiles
(1 and 2). It is assembled on the
end brackets
[
2
times 5a], themselves being attached by mean of
slide screws
(7)
washers
(33) and
locknuts
(8) and pin (66).
5.
A
gooseneck
(12) fit on the mast with 2
slide screws
(7), and two
gooseneck plates
(13)
cambered at the mast shape while fitting, and which will be riveted onto the mast with the
pop
rivets
(14) supplied.
6.
A
boom profile
(15) which has been delivered in 3.20 meter (10’ 6”). It may be necessary to
re-cut the boom profile to length when fitting to match the expected boom length.
7.
A
mandrel
(16) turning on
bearings
(17) fit on a
bearing holder
(19) at the rear end of the
boom, and on the
drum-bearing holder
(24) front, turning around a pin inserted in each of
the
boom end fittings
(22 and 23). When re-cutting the
boom profile
(15) to length, the
mandrel
(16) should also be re-cut by the same amount.
8.
A
drum boom end fitting
(22). It includes the
drum-bearing holder
(24) fit on the
mandrel
(16): the drum being loaded with the furling line, pulling on the furling line while releasing the
mainsail halyard will rotate the
mandrel (
16), which will furl the sail.
9.
2 adjustable
mainsheet bails
(25).
10.
A special
boomvang
(26). It is attached :
- to the mast by mean of a
boomvang attachment
, including an
gooseneck
(12)
attached onto the mast with 2
slide screws
(7)
washers
(33) and
locknuts
(8) and two
gooseneck plates
(13) which will be riveted to the mast with the
pop rivets
(14)
supplied. The boomvang lower end will be attached onto an
articulation fitting
(48)
rotating in the boomvang gooseneck.
- onto the boom with
an adjustable
boomvang hound
(28).
Summary of Contents for MK0
Page 1: ......
Page 5: ...MK 0 5...
Page 24: ...MK 0 24...
Page 28: ...MK 0 28 Drawing 18 4 BATTEN MAINSAIL LUFF CURVE DESIGN...
Page 29: ...MK 0 29 Drawing 19 BATTENS ANGLE TO THE LUFF CONSIDERED AS A STRAIGHT LINE...
Page 30: ...MK 0 30 Drawing 20 BATTEN POCKET CONSTRUCTION...
Page 31: ...MK 0 31 Drawing 21 CLEW...
Page 32: ...MK 0 32 Drawing 22 TACK...
