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Bruce Roberts Yacht Design Official BRUCE ROBERTS WEB SITE - OFFICE FOUNDED 1966 |
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JUNK
RIGS (UK, Australia and Europe) LUG RIGS (USA
and Canada) Some 40 odd years ago Englishman Colonel H. G 'Blondie'
Hasler developed a simplified and modernized version of the traditional Junk rig and used
in on 'Jester' a boat that was to prove the
worth of Hasler's Junk rig designs. During the past few years hundreds of cruising sail
boats have been equipped with this rig and it has proven to be a viable alternative to the
more popular traditional and modern rigs. Modern junk rigs are capable of creditable windward
performance and can often out-reach and out-run boats fitted with more conventional sail
plans. Some of the advantages of the junk rig are, easy to reef, low initial and maintenance costs, lack of standing
rigging (less to go wrong), and a certain beauty. |
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"Jua" This Roberts designed Golden Hind 36 has recently successfully crossed the Atlantic both ways & according to her owners handled some very rough conditions with ease. |
SPRAY 40 'PILOT' |
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SPRAY 40: |
Junk rigged Roberts 25 fitted with a junk style mainsail. This boat was built in Australia. |
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All Bruce Roberts Junk rigs come with detailed
sheet and halyard layout. The plans for all junk rigs come with special construction and control line (not shown here) plans and drawings. |
Here follows a few thoughts from Robin Blain - of the Junk Rig Association: I think it is worth emphasizing that the "motion" of a boat with the un-stayed masted junk rig is far more relaxed than a boat with a stayed mast. Crews often tell me they feel less tired at the end of a days sail in their junk rigged boat than they did with their previous Bermudan rigged boat which had a shorter sharper motion. Another important advantage is the quietness of the junk rig due to the sail being fully battened and so preventing sail flapping and the lack of tension in the running rigging also prevents noise and chafe.These advantages are not obvious to people who have never sailed junk rigged boats, even if they have read a lot about the rig. Anyone interested would pick up some more advantages from the Junk Association Information Pack. We are now fitting new battens to old rigs and improving their performance, particularly to windward to the point that they are matching similar Bermudan rigged boats to windward.The offshore junks are going for the GRP tube battens that are selected by a computer program, so that they get stiffer as you go up the sail, depending on their length and the area of sail panel above each batten. The specification can also easily be altered for either coastal or ocean cruising.The jointed battens work well when there is little wind to bend the GRP battens. We have also found it is advantageous to use what we call Keep battens on the opposite side of the sail to the working battens. We use the cheap, lightweight and very flexible plastic 7/8" OD household water pipe by Osmaweld as they can be lengthened from their standard 4m length by glued joints. These are laced through the sail to the working battens as we have done away with batten pockets, so saving 20% off the sails cost.These Keep battens give an efficient airflow and prevent chafe of the sail from the lazy jacks. I hope you find all the enclosed information useful, as we feel it is essential to share research and development of the junk rig between all interested parties, to improve the efficiency and consequent enjoyment of the junk rig for all and so give the rig the best possible image to other rig users. |
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The JUNK RIG (and Advanced Cruising Rig)
ASSOCIATION JUNK RIG ASSOCIATION BR Attention: Robin Blain, Hon.Sec. Tel: 01329 842 613 ( +44 1329 842613 ) Fax 01 1329 320 232 (+44 1329 320 232 ) |
MORE ABOUT THE JUNK RIG ON PAGE 2
| The JRA embraces people with a diversity of
interests, giving them the opportunity to extend their knowledge of the design,
construction and performance of all types of cruising rigs based on battened sail and/or
un-stayed masts, and to exchange ideas and recount experiences of practical cruising. Total novices to the delights of sailing, seasoned cruising folk, famous pioneers of rig design and lone circumnavigators can mix together through the pages of the BI-annual Newsletter that provides the core of the JRA's existence, or meet to try the real thing at one of the Rallies that take place every year. For the yearly membership fee, the JRA provides: A comprehensive membership list enabling members to contact others in their own county or country. Fact Sheets can be purchased for information on designers and boat builders; parts suppliers; associations, info. and tuition; publications and books (The JRA has a lending library available to members); advice, information, sources; members with boat building experience; members with cruising experience. Newsletters (back numbers) Sweat shirts, T-shirts burgees and ties. If you would like to join, send in the following information below with a subscription and joining fee and you will receive the current year's newsletters, even if joining part way through. The subscription for the year 2001 is 20 pounds Sterling (PLUS 5 pounds Joining Fee for new members) . Members Annual fee is 20 Pounds id paid before July otherwise 20 Pounds. Payments may be made as follows: U.K.: By cash, check or postal order payable to J.R.A. Non UK: By Sterling Draft. Send the following information: (CAPITALS PLEASE) Name, Address, Tel./FAX No., Boat Name (if any),Hull construction (GRP,Timber,Steel,Alloy, Ferro), Home Port, Hull Type/Size O/A, Rig Type, Sail No., E-Mail address. Mailing address above. |