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Summary of Contents for B&G X-35
- Page 1 Brookes & Gatehouse Ltd. Premier Way, Abbey Park Romsey, Hampshire, England Tel: +44 (0)1794 518448 Fax: +44 (0)1794 518077 www.BandG.com X-35 Performance Guide March 2008 Prepared by: Nat Ives...
- Page 2 INTRODUCTION B&G has been involved with the X-35 Class from the very beginning when we consulted on the specification of the electronics. Having now worked with the first boat in the UK during the first season we have now released our guide to the use of instruments onboard such that you can truly maximise your performance and have accurate data to help assess changes to sails, trim and set-up.
- Page 3 each run maintain a constant compass course to ensure that the distance covered is the same as that measured on the chart. If possible choose a measured distance with clearly visible transits marking each end. Typical value: 3.48 Paddlewheel It is prudent to manually calibrate boatspeed using the trip log function on another FFD whilst running the auto cal feature.
- Page 4 achieved without changing trim, and without using any reference to APP W/A. The navigator or tactician should monitor the APP W/A from tack to tack, and average each tack. Any difference between Port and Starboard tack can be corrected in the MHU offset.
- Page 5 Typically, when graphed, a TRUE W/A table for upwind might have a curve like the following: If it has only been possible to achieve reliable values for the TRUE W/S 5, 10 and 20 range and the rest of the table left blank then the table would look as follows: It is clear to see that the 15, 25, and 30 kt values can be accurately guessed at as opposed to being left with zero values.
- Page 6 Typical corrections for TRUE W/A and TRUE W/S for the X-35: TRUE W/S UPWIND TRUE W/A CORRECTION -7.0 -3.0 REACHING TRUE W/A CORRECTION -2.0 -1.0 DOWNWIND TRUE W/A CORRECTION -1.0 -02.0 -2.5 -3.0 DOWNWIND TRUE W/S -0.5 -1.0 -1.5 -2.0 -2.5...
- Page 7 AC and Volvo teams. In addition to this Nat sailed as part of the crew on “Cool Runnings” the first X-35 to sail in the UK winning the Warsash Spring Series 2006.
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