Apple 13

The 13 was designed along the lines of the 16, but suitably modified for a smaller craft.  In addition, she has a plank keel and may be built with or without a fore-and-aft central girder.  Built-in buoyancy both fore and aft as well as under the side seats is provided.  The structure is exceptionally strong and reasonably light, stitch and glue being the main construction method,  though with the offsets supplied there is no reason why she could not be built wide plank clinker style over stringers.  A single high peaked balanced lug is shown, though provision for a fully battened bermudian main has been kept in mind when working out the construction details.

Length: 13ft or 3960mm;

Beam over-all: 5ft or 1528mm;

Sail area: 77 sq ft or 7.21 sq.m [nominal];

Maximum working displacement: 660lbs or 300kg.

Construction details, sail plan and planking/central girder layout are on five A1 sheets with keyed details.  Hull offsets, offsets for the full stations and bulkheads, and the offsets of the individual plank shapes are provided.

Plans are £54 - GBP 54.

Postage and packing: £3 UK, £5 airmail.

Offsets and plank shapes for a River version - the same apart from a rockered forefoot for fast tacking on very narrow rivers - are available if requested when ordering.

A standard version of the 13 is the latest under construction in Czechoslavakia, and is being built both quickly and to a very high standard by her owner/builder.

Like some of the larger designs, the 13 has a keel strake: there's more work initially, but fitting the centre board case is easier later.  Two stitches to hold the bow, and then the first panels are placed onto the keel strake, which is left over-length to provide a clear reference point before the panels are brought together.

 Four stitches in - looking down on the bow.

 Four stitches in - another view; the cross piece is to hold open the panels.

30 minutes later, and three quarters of the stitches are in, working single-handed; note the heavier cross piece to encourage the panels to open and form the correct rocker for the keel strake.  The seams are joining smoothly with tight seams - no gaps - between the panels.

The rest of the building sequence for the basic hull is the same now as for the original Apple.

td@campionboats.co.uk