How to Create a Jury Rig

In association with Admiral Boat Insurance, Yachting Monthly created a series of potential disasters to find out if all the theories of how to deal with such situations actually work in practice. The boat used in the crash test is Admiral’s own 1982 Jeanneau Sun Fizz ketch, Fizzical.

How to Create a Jury Rig

Once the poor Crash Test Boat had lost her mast, it was time to set up a jury rig. The Crash test team demonstrated how to do this by using nothing that wasn’t on the boat already. They used the stump of the mast which they had retrieved from the water, the main boom as a yard, and they re-cut the damaged mainsail to a square sail to effect at square rigger. Using spare shackles they created a tripod of stays, running a forestay from the masthead through a block at the stemhead where this would carry the greatest load, and two shrouds, run from the masthead through two blocks lashed to toerails aft of the mast step. The new square sail was lashed to the boom which was raised to the top of the mast square across it, the forward clew lashed forward, and the aft clew used as a sort of main sheet. Various adjustments were needed to get her to sail close to the wind including adding the original small jib as a trysail. The team explains in their article (see the August 2011 issue of Yachting Monthly below) how this was done.

Following last month’s dismasting of the Crash Test Boat by Yachting Monthly, the unlucky crew set about creating a jury rig from what was left on board. This resulted in the elegant square rigger shown above. Below is a video of the event itself.

A Series of Crash Tests

Over nine months Yachting Monthly subjected the Crash Test Boat to a punishing programme of destructive experiments, including the following:

  • Capsize
    YM capsized the Crash Test Boat twice to see if the saloon, galley etc could be made safe or become a hell-hole in the unlikely event of a capsize or knockdown.
  • Dismasting
    After breaking the mast under sail, methods of getting rid of the broken spar were tested before it threatened to puncture the hull, then a jury rig was made with what was left.
  • Holed below the waterline
    There’s a thud and the boat groans before sailing on. Within moments the cabin sole is afloat and you’ve got a big problem. YM found out how long it takes to locate the hole and which emergency fixes work best.
  • Galley and engine fires
    YM tested a variety of measures aimed at making sure you can extinguish a fire before you have to abandon ship.
  • Gas explosion
    When did you last inspect your gas pipes and hoses? YM found out how much gas makes how big a bang and exactly what it can do to you and your boat.

Robert Holbrook, MD Admiral Marine

Robert Holbrook“Often, the first natural human instinct when an emergency or disaster strikes is panic. In a series of controlled experiments, the Yachting Monthly crew put theory to the test by re-enacting some typical worst-case scenario sailing accidents or emergencies – such as grounding, capsize and mast failure. Risk assessment and careful consultation with experts was at the core of all tests. How often are incidents like this photographed and filmed in detail? By sharing their findings in a series of articles, I could see how yachtsmen could learn much invaluable information. Admiral bought Fizzical in November 2010 and the project was born. Why not learn from our mistakes by following her story so you can avoid making your own?”

All Yacht Monthly articles are available in full

Download the full, unabridged Yachting Monthly articles in PDF format below for reading at your leisure.

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Admiral Yacht Insurance is underwritten by certain underwriters at Lloyd’s (Watkins Syndicate, Syndicate 457). Lloyd’s enjoys strong financial security supported by excellent ratings. Visit www.lloyds.com for more information. The policy is written in plain English so a knowledge of marine law is not required to understand it. In fact, we are so confident about our policy that we offer a money back guarantee – just tell us in writing, within 14 days, if you are not satisfied with the policy.

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