Cal 21

Cal 21

Development
Designer	C. William Lapworth
Location	United States
Year	1969
No. built	500
Builder(s)	Jensen Marine/Cal Yachts
Role	Cruiser
Name	Cal 21
Boat
Boat weight	1,100 lb (499 kg)
Draft	4.30 ft (1.31 m) with the keel down
Hull
Type	monohull
Construction	fiberglass
LOA	20.50 ft (6.25 m)
LWL	16.67 ft (5.08 m)
Beam	6.67 ft (2.03 m)
Engine type	outboard motor
Hull appendages
Keel/board type	swing keel
Ballast	360 lb (163 kg)
Rudder(s)	transom-mounted rudder
Rig
Rig type	Bermuda rig
I foretriangle height	23.00 ft (7.01 m)
J foretriangle base	8.50 ft (2.59 m)
P mainsail luff	23.00 ft (7.01 m)
E mainsail foot	8.50 ft (2.59 m)
Sails
Sailplan	fractional rigged sloop
Mainsail area	97.75 sq ft (9.081 m2)
Jib/genoa area	97.75 sq ft (9.081 m2)
Total sail area	195.50 sq ft (18.163 m2)
Racing
PHRF	258

The Cal 21 is an American trailerable sailboat that was designed by C. William Lapworth as a cruiser and first built in 1969. ^{[1] [2] [3]}

Production

The design was built by Jensen Marine/Cal Yachts, a division of Bangor Punta Corp. in the United States. Production ran from 1969 to 1976, ^[3] with 500 boats completed, but it is now out of production. ^{[1] [3] [4] [5]}

Design

The Cal 21 is a recreational keelboat, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig; a raked stem; a reverse transom; a transom-hung mahogany, non-folding rudder, controlled by a tiller and a swing keel. It displaces 1,100 lb (499 kg) and carries 360 lb (163 kg) of ballast. ^{[1] [3]}

The boat has a draft of 4.30 ft (1.31 m) with the keel extended and 10 in (25 cm) with it retracted, allowing beaching or ground transportation on a trailer. ^{[1] [3]}

The swing keel is lowered from a slot in the hull, which is then plugged with a cover that sealed the opening to reduce drag. The cable to raise the keel had to be reattached to lower or raise the keel. ^[1]

The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. ^{[1] [3]}

The design has sleeping accommodation for four people, with a double "V"-berth in the bow cabin and two quarter berths in the main cabin. The head is located under the "V"-berth in the bow cabin on the starboard side. Cabin headroom is 49 in (120 cm). ^{[1] [3]}

The design has a PHRF racing average handicap of 258 and a hull speed of 5.5 kn (10.2 km/h). ^[3]

Operational history

In a 2010 review Steve Henkel wrote, "In good weather a pair of sleepers can be accommodated on her unusually spacious (eight feet long) cockpit seats, Worst features: The mahogany rudder is detachable but not folding, a potential problem in shallows. The iron keel is subject to pitting and rust. The keel hoisting system is said by some owners to be a weakness." ^[3]

See also

• List of sailing boat types

References

1. McArthur, Bruce (2020). "Cal 21 sailboat". sailboatdata.com. Archived from the original on 23 January 2021. Retrieved 23 January 2021.
2. McArthur, Bruce (2020). "C. William Lapworth 1919 - 2006". sailboatdata.com. Archived from the original on 23 January 2021. Retrieved 23 January 2021.
3. Henkel, Steve: The Sailor's Book of Small Cruising Sailboats, page 90. International Marine/McGraw-Hill, 2010. ISBN   978-0-07-163652-0
4. McArthur, Bruce (2020). "Jensen Marine/Cal Boats 1956 - 1989". sailboatdata.com. Archived from the original on 23 January 2021. Retrieved 23 January 2021.
5. McArthur, Bruce (2020). "Bangor Punta Corp. 1964 - 1984". sailboatdata.com. Archived from the original on 23 January 2021. Retrieved 23 January 2021.

External links

• Cal 21 commemorative webpage