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Jiffy Jibe © - Ho!by Gene & Cathy Ferguson © Copyright 2002 Spinnaker It all started at the 2001 Nationals in Florida. I noticed that no matter what we did, boats kept passing us downwind in the Genoa class. I also noticed that most of them had two and sometimes three people aboard. I wondered if the four of us on our boat could be the cause of our slower downwind progress. We decided to test the theory by changing to just Cathy and me. Not a problem in the Genoa class, but what would we do about the Spinnaker? Give up racing Spinnaker — I don’t think so. But we had made the commitment so now something had to be done to make a 5’2” woman competitive on the foredeck and in the cockpit at the same time. I began to think of what could be done to make the jibe easier. I remembered that the big boats have two sheets to each clue of the spinnaker. One is a lazy sheet and is used in a dip pole jibe configuration. How could this be configured to work without a foredeck person to release the pole from one and attach to the other and at the same time dip the pole? After many
sleepless nights and hours of visualizing, the concept was clear. Who said the
sheet and guy must be fixed to the end of the pole. Why not make it adjustable
so that it could be released or attached from the cockpit. Thus was born Cathy’s
“Jiffy Jibe”. A trip to the scrap metal place produced a section of 1 ¾” aluminum tubing for the main body of the “Jiffy Jibe” pole. A PVC end cap was added and two holes drilled in it for deck bushings with stainless steel inserts to be inserted in the holes. This is for the 3/16” “pole guy lines” (A) to run through and out the other end. The pole guy lines (A) go through a turning block (H) at the mast ring (K), down the mast and then back to the cockpit. This enables the pole outer end to be lowered or raised without adjusting the tension on the pole guy line (A). The pole guy lines (A) have a small ring (G) attached to the business end of the line, which is for the Spinnaker sheets to pass through. This allows the pole to be attached or unattached from the Spinnaker sheets. Launching the Spinnaker
It is very important to keep the pole end clip in a vertical position on the car ring. Therefore the two clips (F) with the line run through at each end are positioned on each side of the pole end. When the pole car lines (D) are pulled it prevents the pole end from twisting and hanging up. Jibing the Spinnaker
If you observe the photo on the front cover, you will note all the spaghetti on the Spinnaker pole of 160. However 752 has the conventional Spinnaker pole with the bridal for the topping lift and downhaul (foreguy). Quite a simple operation, right? Wrong, it takes practice and timing and lots of patience in the beginning until all the steps become second nature. But it works and it works well. Surprisingly, the stronger the wind, the better it works. Now if I could just find a way to double our weight in heavy air — oh well, I guess some things just can’t be overcome. We just have to learn to change sails sooner. After seeing how this new system worked, it was time to experiment with the same method of jibing with the Genoa. Genoa However that proved to be a little more difficult due to the fact that the pole had to turn 180° when moving the Genoa from one side to the other without disconnecting the pole from the Genoa sheet. The answer was to make the mast end of the pole swivel so that the pole could make the turn without being disconnected from the mast ring. This was accomplished by cutting the pole and inserting a bearing inside the pole so that the mast end could turn 360°. This allows the pole to turn 180° during the jib and lets the mast end of the pole remain attached to the ring without turning. Now all we needed to do was slide the car up the track on the mast and pull the Genoa across to the other side and then pull the car back down the track to the designated position. This has proved to be a very effective procedure for jibing with two people. The only thing that needs to be observed is keeping the car from traveling too high on the track. It needs to stop when the outer end of the pole will just clear the forestay. This is accomplished by a stopper knot in the line that lowers the car. If you let the car slide too high, the outer end of the pole will drop to the deck and prevent the Genoa clue from crossing to the opposite side for the jibe. Another thing that is a must is to be sure that the mast end of the pole can not twist and get caught on the side of the car ring. This is accomplished by a fixture on the ring (F) to keep the end of the pole from going to the side of the ring and in a vertical position. The procedure for setting the pole and jibing is as follows. Starting down wind
Jibing down wind
Leeward rounding
This project is relatively inexpensive and can be done in one weekend. [ HOME ] [ Members ] [ Activities ] [ Join Us ] [Links] [Projects] [ Catalina History ] [ Texas Circuit Regattas ]
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Last Updated: 10/20/2006 |