Plan B

International One Metre Racing Yacht

SHOWCASING - PLAN B - A HIGH PERFORMANCE IOM RACING YACHT FOR COMPETITIVE RC SAILING

RADIO CONTROLLED INTERNATIONAL ONE METRE RACING YACHT

Peter Burford Builder

RIGS

The rigs are supplied ready to have sails fitted.

All three rigs use 11 mm diameter x 0.6 mm wall black or silver, high-tensile aluminium mast sections and your choice of  Sailsetc black or silver rectangular boom sections.   

The A rig mast has 12 mm forward pre-bend rolled evenly from the head to 900 mm below, the B rig mast has 8 mm forward pre-bend rolled evenly from the head to 600 mm below and the C rig mast is without prebend.   With all three rigs, the back-stay can be tightened without or with the mainsail mounted, removing this pre-bend or any induced bend, to achieve a perfectly straight mast.  With the mainsail mounted, further tightening of the backstay will progressively remove sail camber.  On Plan B yachts, A and B masts generally use the forward shroud attachments at the deck and the more steeply raked C mast the aft attachments.  

P1070465.jpg

Spreaders of the A and B rigs are bespoke from 3 mm diameter aluminium.  The C rig is without spreaders.

spreaders 001.JPG

The  jackstay-style mainsails are cut to suit a straight mast or one with only very little aft bend.

Shroud heights, jib-boom pivots, mast pre-bend and mast rake are combined to give a rig that will automatically adjust to wind gusts, freeing and flattening both jib and mainsail in harmony.  This allows the correctly trimmed yacht to sail close-hauled to windward, in balance, needing only minimal helm correction.  

The mast has a plain, cylindrical plastics step.  In the hull, the mast-step base is flat and parallel to the waterline.  This allows the mast step  angle to be tuned to the rake used, helping to keep the lower mast in column. 

B and C rigs have internal mast corrector weights, to bring them to a nominal A rig weight.

Fittings are a selection of Sailsetc commercial and Plan B bespoke.  

 

A PERFORMANCE IOM DESIGNED AND BUILT IN AUSTRALIA BY PETER BURFORD
"Everyone needs a Plan B"