Alby Imperial PDF – click for details

$50.00

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Description

Alby is a 7′ 7″ x 4′ 2-1/2″ x 6″ utility pram dinghy with an unusually good carry capacity, displacing 418lbs/190kg with the stern transom just kissing the water, or at 2″ deeper, with the bow transom touching the water,  she would displace 638lbs/290kg. She carries substantial buoyancy tanks under the seating, and can be rowed, sailed, or powered by a very small outboard motor.

The main characteristics are: –

  • Stitch-and-Glue construction from pre-computed plywood panels. This allows the boat to be built without the need for a strongback, mold, or full-size lofting. The resulting structure is clean and un-cluttered, and can be built in a relatively short time. All components are bonded with epoxy and glass tape, to produce a stressed-skin hull with built-in emergency buoyancy;
  • High capacity due to the relatively wide hull and the way in which the chine lines run from high at the bow and stern down to a very shallow ‘V’ in the middle of the boat. This maximizes buoyancy and initial stability, while retaining a deeper ‘V’ fore and aft to reduce pounding in a chop;
  • Two rowing stations to allow for proper trim with different passenger loads;
  • External gunwales so that water, sand, and mud can be easily washed from the boat when she is rolled onto her side. This system dramatically reduces the labour required to install the gunwales;
  • The bow transom is relatively low in comparison with the stern transom – this is designed to provide adequate height for effective mounting of a standard-length outboard, and to help with tracking under oars;
  • Optional sailing rig, including centreboard and rudder details. The rig is a very simple balanced-lugsail of generous area – a set-up which gives excellent performance with minimal complication;
  • Emergency buoyancy built-in under the three seating positions. This volume can be used for stowage of light articles such as dry clothing.

Her hull-form has been very carefully designed to ensure that she is stable and easily driven by her (optional) 41 sq.ft. balance lugsail. The mast is free-standing, and steps in a removable mast partner.

  • Designed to be sailed, rowed, or powered by a small outboard
  • Lightweight Taped-Seam (stitch-and-glue) construction
  • Built-in buoyancy tanks
  • Daggerboard and Pivoting Rudder

Plans package includes

  • 14 sheets of A3 sized drawings, including sail and rig details
  • Oar Patterns
  • 14-page instruction manual with sketches and illustrations
  • Option of Metric or Imperial dimensions

PDF Download copy available for $50 Australian

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