Jack Holt (dinghy designer)
Jack Holt, OBE (1912–1995) was a prolific designer of sailing dinghies. His pioneering designs of dinghies using plywood did much to popularise the sport of sailing in the period immediately following World War II.
Born in Hammersmith, London near the River Thames Holt designed more than 40 boats, many of which are listed below. He worked for many years with fellow sailing enthusiast and businessman Beecher Moore.
Jack Holt was awarded an OBE in 1979 for his services to sailing.
Jack Holt has been associated with several sailing clubs. His premises were next door to Ranelagh Sailing Club, and he designed the Merlin Rocket and his National 12 designs there.
Jack Holt Designs
- Diamond Keelboat
- Explorer (dinghy)
- International 10sq m Canoe
- International 14
- Lazy E
- Merlin Rocket
- Mirror 16
- National 12
- National E
- North Norfolk 16
- Pacer, formerly Puffin Pacer
A selection of Jack Holt plans are held in the archives of the National Maritime Museum Cornwall.
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In addition to designing boats, Jack was also a boatbuilder. His fittings business was in the loft above the boatbuilding workshop. Naturally he built all the boats he designed, but he also built boats designed by others, including the Albacore
Jack collaborated with Glen and Tony Allen from Essex to manufacture and supply a lightweight range of dinghy fittings, the fittings were known as Holt Allen fittings for 52 years until 2008 when the Allen side decided to distribute the fittings themselves under the brand Allen. The companies now trade separately as Holt Marine Ltd  and Allen Brothers (Fittings) Ltd 
Sails for early Puffins, those with a puffin silhouette on the main, were deep blue in colour and were made by Jack Holt Sails of Putney, England.
- Moore, Beecher (16 November 1995). "Obituary: Jack Holt". The Independent.
- Cook, Peter (15 November 1996). "Obituary: Beecher Moore". The Independent.
- Wraysbury Lake SC has large fleets of Enterprise and Solo dinghies
- London Corininthian SC Club History
- Commissioned by Yachting World
- "Y.W. Diamond (Yachting World Diamond) (ex Yachting World Keelboat)". Retrieved 2009-08-16.
Editors of Yachting World approach Jack Holt. The resultant boat is known as the Yachting World Keelboat.
- Originally the News Chronicle Enterprise. € the first dinghty sponsored by a national paper
- Also for Yachting World
- East Antrim Boat Club
- Quest was designed and built by JH
- the International 14 is a development class. JH is among many designers
- The Lazy E was one of several dinghies trialled by the Admiralty for sailing by the Royal Navy. The Ian Proctor designed Bosun was selected
- Jack collaborated with Beecher Moore in the design of the first Merlin Rocket Holt - About us
- Designed by JH and Barry Bucknell
- Designed by JH as a larger version of the Mirror dinghy
- A development class, Holt had some very successful river designs
- The National E is 5m and uses a mainsail, jib, spinnaker and trapeze
- Some later boats designed by JH
- History of the Pacer Class
- Description and pictures of the boat repair
- Minutes of the Meeting of the International Albacore Association held on July 28, July 29, and July 31, 1997 - Status of Boat Builders - Worldwide