Junk Rig

The Junk rig is without doubt the most efficient cruising rig.  As Junk Rig is not the norm this puts most people off from even considering it.  In many ways you need to experience a junk rig to fully appreciate its wonderful qualities. Come on board! 

 

In a few simple words the rig's qualities are: 

  • Despite perceived wisdom and unjustified criticism junk rigs sail WELL to windward compared to average cruising bermudan rig, but cannot compare to a racing boat. 

  • It is easy to reef and handle in squally conditions

  • The sails are self-tending when tacking making short tacking under sail effortless

  • Simple DIY sail making plus low cost and ease of repair

  • Unstayed mast removes the rigging wire problems

  • There is no need to change sails and no sail bags down below

For many more read Annie’s 50 Advantages of Junk Rig

https://app.box.com/s/2c2hsbay8fnqprvtpch8

Roger Taylor an extract from “Mingming and the Art of Minimal Ocean Sailing”

https://junkrigassociation.org/sys/website/?pageId=1858701

Visit the  JRA website and join for a mere £7 / $10 a year! Where a wealth of information and expert advice is at hand. 

https://junkrigassociation.org/


 

JRA 3D Models for the Junk Rig

https://junkrigassociation.org/sys/website/?pageId=1858532

 

The Junk Rig association YouTube channel

https://youtube.com/channel/UCsW6dCIP3uKKCepxZR13uuA

Sail Design

We wanted a junk rig sail with camber in it for better performance than the flat sail. Aero-junk was not a consideration because of the placement of the mast and its appearance would be at odds with the rest of the design. 

We chose Arne’s method because it was a proven and simple way to make camber sails. 

Arne has written a complete guide for designing and building this style of sail. His excellent and comprehensive documentation is extremely helpful. These documents are regularly updated - as and when he develops new things and make ingenious improvements. 

Arne Kverneland's files

https://junkrigassociation.org/arne

Practical Junk Rig by HG Hasler - is considered to be the 'bible' for all junk rig information. Complete guide to designing, building and sailing a Hasler style western junk rig, still in print.

https://www.amazon.co.uk/Practical-Junk-Rig-Aerodynamics-Handling/dp/1888671424

Sail Making

Sailcloth: Weathermax 80.

  • The main reason for choosing this is because of its UV protection, guaranteed against sun damage for 10 years.

  • The sail is supported by many battens, it does not require the strength of the traditional sail cloth. 

 

Arne’s comprehensive guide made it easy to make the sail, although time consuming.  It took us approximately 10 days to make and 10 days to finish both sails. 

  • Foresail 30 sqm

  • Mainsail 50 sqm

Spars

Aluminium tube - Battens:  2" x 2 mm, Yard 4.5" x 3 mm

Mainsail tube required extending by 2 ft / 60 cm

Insert overlapping tube 5 times the diameter each end:

  • Cut aluminium tube - allow for a gap 

  • Cut corners - helps feeding into the tube 

  • Jubilee clips and clamps to reduce the diameter for feeding in

  • Hammer into the batten / yard tube (spray WD40 before start)

  • Rivet 1st joint - repeat the hammering & tightening process above 

  • Rivet 2nd joint

  • Add eyelets & chain - as per Arne's instructions