SEAS Catalina 30 Operating Guidelines
8/10/2021
Page 13 of 28
temporarily release the working sheet to release the load, adjust the block, then
haul in on the sheet to trim sail shape as needed.
6.
The boom topping lift may now be loosened at the mast (starboard side.) You
might choose to loosen it if it is interfering with main sail shape.
Sail Selection:
SEAS the BREEZE
is equipped with the optional tall rig and bow sprit (TRBS) AND a
130% jib. These features ensure that the boat will move in even the slightest breeze.
They also mean that the boat needs to be reefed early. Following guideline minimizes
heeling and maximizes comfort. You may want to reef more or less than the guide. You
are responsible for making your own decisions about how much of the available sail
area to use.
Wind 0
– 9 kts
Jib: all (17
’)
Main: all
Wind 10
– 12 kts
Jib: 90% (16
’)
Main: all
Wind 13
– 15 kts
Jib: 90%
Main: Reef 1
Wind 16
– 18 kts
Jib: 75% (14
’9”)
Main: Reef 1
Wind 19
– 21 kts
Jib: 75%
Main: Reef 2
Wind 22
– 25 kts
Jib: 50% (1
2’)
Main: Reef 2
Wind 26
– 30 kts
Jib: 25% (8
’6”)
Main: none
Wind 30 kts and up
Jib: 0%
Main: none
Here is a comparison of the
key performance factors for the O’Day and Catalina. Sail
Area / Displacement is the ultimate indicator of performance: the higher the number, the
higher the performance.
The Catalina is a bigger, heavier boat, so it needs more sail area to meet the same
performance level as the O’Day.
Boat
Name
Displacement Sail
Area
Sail Area /
Displacement
O’Day 28
SEAS the Day II
7300 lbs
370 sq ft 15.78
Catalina 30
Standard
10200 lbs
437 sq ft 14.93
Catalina 30
TRBS
SEAS the BREEZE
10200 lbs
590 sq ft 20.14
The C-30 Standard
has less power (14.93) when compared to the O’Day (15.78.) The
C-30 Tall Rig Bow Sprit (TRBS) has almost 25
% more power than the O’Day relative to
its displacement (20.14.) This is a LOT of power and needs to be managed accordingly.
Reefing does not slow the boat
– it reduces heeling and makes the ride more
comfortable. You may even go faster because a properly reefed boat has less or no
weather helm. Reef early. Reef often.
