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            Fine Tuning Index

 
FRED (Fast Rigging Easy Doing): The FRED measurement is situated midway between the top two battens and the measurement figure is centimetres from the leach. The FRED measurement indicates the ideal depth of loose leach achieved by adjusting the downhaul tension. Once the downhaul is set, all other trimming should be done using the outhaul.
 
Outhaul: The outhaul setting is the minimum and maximum advised correction to the stated boom length; therefore, if you had a stated boom length of say 200cm and an outhaul setting of  +/-1.5 - this would equate to a boom of: 198,5< 200 >201,5

Please note;
Due to the amount of imponderables including, weight of the sailor, sailing conditions, flat-water/choppy/waves, wind force, gusts  etc. it is not possible to call our FT Index settings Exact or Perfect, however they are the best advised starting point and often just right for the majority of windsurfers in the majority of conditions. 



2007 FT Index
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
HAMMER 3.3 344 40 144 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
HAMMER 3.7 367 51 149 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
HAMMER 4.0 385 48 153 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
HAMMER 4.2 394 48 156 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
HAMMER 4.5 407 52 163 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
HAMMER 4.7 413 56 164 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
HAMMER 5.0 418 60 170 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
HAMMER 5.3 432 60 176 +/-1.5 cm  Expert Wave /Select Wave RDM 430 20-22
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
WAVE MC 3.7 366 40 150 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
WAVE MC 4.0 382 49 155 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
WAVE MC 4.2 394 48 159 +/-1.5 cm  Expert Wave /Select Wave RDM 370 16-18
WAVE MC 4.5 405 50 165 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
WAVE MC 4.7 413 57 169 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
WAVE MC 5.0 418 60 174 +/-1.5 cm  Expert Wave /Select Wave RDM 400 18-20
WAVE MC 5.3 432 60 178 +/-1.5 cm  Expert Wave /Select Wave RDM 430 20-22
WAVE MC 5.7 456 76 183 +/-1.5 cm  Expert Wave /Select Wave RDM 430 20-22
WAVE MC 6.1 459 76 189 -1.5 / +2 cm  Expert Wave /Select Wave RDM 430 20-22
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
TARGET 4.2 385 54 159 +/-1.5 cm  Cross Wave /Expert Wave 370 16-18
TARGET 4.7 415 59 168 +/-1.5 cm  Cross Wave /Expert Wave 400 18-20
TARGET 5.0 417 63 175 +/-1.5 cm  Cross Wave /Expert Wave 400 18-20
TARGET 5.3 425 70 179 +/-1.5 cm  Cross Wave /Expert Wave 430 20-22
TARGET 5.7 452 70 183 +/-1.5 cm  Cross Wave /Expert Wave 430 20-22
TARGET 6.0 453 73 187 +/-1.5 cm  Cross Wave /Expert Wave 430 20-22
TARGET 6.3 456 80 193 -1.5 / +2 cm  Cross /Expert 460 24-26
TARGET 6.8 467 79 198 -1.5 / +2 cm  Cross /Expert 460 24-26
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
NEXUS 4.6 416 55 167 +/-1.5 cm  CROSS  /CROSS RDM / Expert Wave 400 18.20
NEXUS 5.1 421 60 176 +/-1.5 cm CROSS  /CROSS RDM / Expert Wave 400 18-20
NEXUS 5.6 437 65 185 +/-1.5 cm CROSS  /CROSS RDM / Expert Wave 430 20-22
NEXUS 6.1 457 74 192 -1.5 / +2 cm CROSS  /CROSS RDM / Expert Wave 430 20-22
NEXUS 6.6 468 75 198 -1.5 / +2 cm CROSS  /  Expert  460 24-26
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
RIDE 4.5 413 49 167 +/-1.5 cm  Advantage /Cross 430 20-22
RIDE 5.5 433 72 181 +/-1.5 cm  Advantage /Cross 430 20-22
RIDE 6.0 446 75 189 -1.5 / +2 cm  Advantage /Cross 430 20-22
RIDE 6.5 460 75 200 -1.5 / +2 cm  Advantage /Cross 460 24-26
RIDE 7.5 482 82 219 -1.5 / +2 cm  Advantage /Cross 460 24-26
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
FLASH 4.8 414 56 173 +/-1.5 cm  Cross Wave /Expert Wave 400 18-20
FLASH 5.4 433 66 183 +/-1.5 cm  Cross /Expert Wave 430 20-22
FLASH 6.0 445 68 192 +/-1.5 cm  Cross /Expert Wave 430 20-22
FLASH 6.3 457 60 199 -1.5 / +2 cm  Cross /Expert 460 24-26
FLASH 6.8 468 75 205 -1.5 / +2 cm  Cross /Expert 460 24-26
FLASH 7.4 482 76 217 -1.5 / +2 cm  Cross /Expert 460 24-26
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
TEMPO 6.0 445 68 193 +/-1.5 cm  Expert Wave /Select 430 20-22
TEMPO 6.4 457 68 201 -1.5 / +2 cm  Expert /Select 460 24-26
TEMPO 6.9 471 79 211 -1.5 / +2 cm  Expert /Select 460 24-26
TEMPO 7.5 482 85 220 -1.5 / +2 cm  Expert /Select 460 24-26
TEMPO 8.1 500 78 231 -1.5 / +2 cm  Expert /Select 490 28-30
TEMPO 8.8 510 88 241 -1.5 / +2 cm  Expert /Select 490 28-30
               
Name Size Luff FRED Boom outhaul setting recommended mast IMCS
BOOSTER 5.8 446 59 187 +/-1.5 cm  Expert Wave /Select 430 20-22
BOOSTER 6.5 467 62 198 -1.5 / +2 cm  Expert /Select 460 24-26
BOOSTER 7.0 484 55 206 -1.5 / +2 cm  Expert /Select 460 24-26
BOOSTER 7.5 489 77 217 -1.5 / +2 cm  Expert /Select 490 28-30
BOOSTER 8.0 501 81 228 -1.5 / +2 cm  Expert /Select 490 28-30
BOOSTER 8.7 524 89 242 -1.5 / +2 cm  Expert /Select 520 32-34
BOOSTER 9.5 542 90 246 -1.5 / +2 cm  Expert /Select 520 32-34
BOOSTER 10.5 556 93 263 -1.5 / +2 cm  Expert /Select 520 32-34

Basic problem solving
Problem Solution
If you have bad batten rotation
 		 This is probably due to the batten tips scraping the mast during rotation. Try Increasing the downhaul tension a little.
 
If your sail becomes unstable in strong wind conditions, or feels heavy and develops high sideway forces This is probably due to a lack of both downhaul and outhaul tension. Try Increasing the downhaul and outhaul tension
If you feel that your are slow at planning and your sail does not develop enough power Your sail is probably set too flat. Try releasing off some of the downhaul and outhaul tension to get a slightly deeper profile.
If you have some small vertical creases in sail, particularly around the battens.
 		 This is probably due to a lack of batten tension. You will probable need to Increase the batten tension just enough to take out the vertical creases. It is important not to over tension the battens.
 
If your sail feel too back-handed
 		 This is probably due to the sail being set too full letting the centre of effort drift back. Try Increasing the outhaul tension
 
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