1972 CAL 24' _{(7.32 m)} T/4

Design

The Cal T/4 is a racing keelboat, built predominantly of fiberglass, with wood trim. It has a masthead sloop rig; a raked stem; a raised counter, reverse transom; a transom-hung rudder controlled by a tiller and a fixed fin keel. It displaces 4,000 lb (1,814 kg) and carries 2,000 lb (907 kg) of ballast.^[1][3]

The boat has a draft of 4.00 ft (1.22 m) with the standard keel and is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. Cabin headroom is 63 in (160 cm), but the cockpit has 78 in (200 cm) of headroom under the boom.

 Designed to race in the ¼ Ton Class has a PHRF racing average handicap of 234 and a hull speed of 6.1 kn (11.3 km/h).

Operational history

The design was raced on some Quarter on Class races in the 1970s and 1980, but was not noted as winning any of the larger competitions.^[3]

The boat is supported by an active racing club that organizes racing events, the Quarter Ton Class.^[5]

In a 2010 review Steve Henkel wrote, "the boat was named the T/4 for her builder’s intent that she do well in Quarter Ton racing. (We think she did fairly well in the few official Quarter Ton races staged in the 1970s and 1980s but fell short of producing headlines.) Best features: With 4-foot-deep fin keel, spade rudder, and 50 percent ballast to displacement ratio, she could run rings around the competitors ... She has been described as an E-type Jag: robust, quick, agile, and fun. The high-aspect main is rigged far enough above the deck to give standing, headroom for tall people standing up in the cockpit (more than 6'6" clearance over the cockpit sole). Worst features: Compared with her competitors, she has less headroom below, a lower Space Index, and perhaps lower directional stability (because of her relatively high aspect ratio keel).

Information:

Hull Type:                                       Rigging Type:

Fin w/transom hung rudder         Masthead Sloop

LOA:                                     LWL:                                      Beam:

21.00 ft / 6.40 m            24.17 ft / 7.37 m             8.00 ft / 2.44 m

Draft (max):                       Displacement:                    Ballast:

4.00 ft / 1.22 m                    4,000 lb / 1,814 kg           2,000 lb / 907 kg

S.A. (reported):                 S.A./Disp.:                           Bal./Disp.:

256.00 ft² / 23.78 m²                 16.30                            50.00

Disp./Length:

192.82

Construction:                      Years Built:                         # Built:

Fiberglass                       1971-1972                     238

Builder:                                Designer: *Designed as IOR 1/4 ton

Jensen Marine (USA)         C. William Lapworth

Rig and Sail Particulars

P: 23.60 ft / 7.19 m  E: 9.00 ft / 2.74 m   I: 30.00 ft / 9.14 m   J: 10.00 ft / 3.05 m

Est. Forestay Len.:

31.62 ft / 9.64 m

S.A. Fore:                             S.A. Main:                            S.A. Total (100% Fore + Main Triangles)

150.00 ft² / 13.94 m²                 106.20 ft² / 9.87 m²                    256.20 ft² / 23.80 m²

Engine

• Johnson Long Shaft Sailmaster Outboard
• 9.9 HP
• Electric Start

Accommodations

• V-berth forward
• Two settee berths in main salon
• Removable Salon table
• Marine Head on Port side forward of salon

Galley

• Manual pressure water
• Ice box
• Stainless steel sink
• Single Burner stove

Electronics & Navigation

• New VHF Radio
• Ritchie compass
• Windex

Electrical

• New Deep Cycle 12-volt battery
• 12-volt ships power panel
• Navigation lights
• 12-volt cabin lighting
• Deck light

Deck & Hull

• Danforth anchor w/rope and chain rode
• Swim ladder
• Stanchions and lifelines
• Rope locker

Sails & Rigging

• Mainsail Dacron w/Single Line Reefing & Flattening Reef led aft
• Mainsail Cover
• Harken Lazy Jacks
• 150% Roller Furling Genoa w/blue sun cover  
• 100% Working Jib
• Newer Harken roller furling system
• Haarstick Cruising Spinnaker
• Split Backstay Adjuster
• Garhauer Ridged Vang

Other

• Botton Epoxy w/VC 17
• Marine toilet w/holding tank
• Manual Bilge Pump in cockpit
• Fenders and dock lines
• Safety gear
• Spare Halyards and Sheets
• Tools