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