TriFoiler ECNs

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TriFoiler Engineering Change Notices

Assembled, sequenced, and PDFed by:User:jonathan Jonathan Levine (jonathan@canuck.com) TF#23 "Unfair Advantage"

Editor's note:

The observant reader will discover that there is duplication between some of these documents. This was a completist's conscious choice. In organizing them, I chose to remain true to the chronological order of issuance rather than purging redundant material. To do otherwise risks confusing anyone who later comes across the "removed" portions.

The "ECN" designations are mine. In all other respects these documents are as received. Hope you find this useful.

Click on each note's title to download it as a PDF, or click here Media:TriFoiler_ECNs.zip to download the entire package, including this index, as a single ZIP file. - media file type .zip not yet supported, stay tuned.Jonathan 15:05, 31 May 2009 (UTC)


Media:ECN01_TIP.pdf (issued October 7th, 1994)

  • Adjusting the ride height
  • Inspecting the steering cable
  • Mast caution

Media:ECN02_FIX2.pdf (issued July 6th, 1995)

  • Hobie merger announcement
  • Sensor bow line
  • Overhead wire caution
  • Rudder holdup clip
  • Handling caution

Media:ECN03_TIP3.pdf (issued August 21st, 1995)

  • Adjustable shock absorbers

Media:ECN04_MAST-ROT.pdf (issued October 17th, 1995)

  • Mast rotator upgrade

Media:ECN05_AMA-FOAM.pdf (issued October 17th, 1995)

  • Ama reinforcement

Media:ECN06_FIX3.pdf (issued October 19th, 1995)

  • Main beam rivet upgrade
  • Sensor rising discussion

Media:ECN07_OW-MN-UD.pdf (issued November 3rd, 1995)

Owner's manual update:

  • Backstay tension
  • Compression strut upgrade
  • Sensor bow line
  • Adjustable shock absorbers
  • Foil plates

Media:ECN08_OW-MN-U2.pdf (issued February 22nd, 1996 - essentially identical to ECN07_OW-MN-UD)

Owners manual update:

  • Backstay tension
  • Compression strut upgrade
  • Sensor bow line
  • Adjustable shock absorbers
  • Foil plates

Media:ECN09_TIP4.pdf (issued May 1st, 1996)

  • Tuning tip: Sail link length

Media:ECN10_OW-MN-U3.pdf (issued May 8th, 1996)

Owners manual update:

  • Hard turn caution
  • Walking the beam caution
  • Derigging mast caution
  • Rudder drop caution

Media:ECN11_FIX4.pdf (issued May 13th, 1996)

  • Reinforcing the main hull under the speedo
  • Reinforcing main sheet turning block mounting
  • Steering cable blocks caution
  • Sensor modification
  • Sail link length recommendation
  • King post hook caution
  • Sitting caution
  • New manual announcement

Media:ECN12_FIX5.pdf (issued May 24th, 1996)

  • Sensor bow line adjustment
  • King post hook caution
  • Sitting caution
  • New manual announcement

Media:ECN13_OW-MN-U4.pdf (issued June 10th, 1996)

Owners manual update:

  • Mast stepping
  • Beaching and launching

Media:ECN14_FIX6.pdf (issued June 18th, 1996)

  • Main hull reinforcement under beam
  • Reinforcing ama bows
  • Foil lock-down hook roll pins caution

Media:ECN15_TIP5.pdf (issued August 13th, 1996)

  • Steering cable warning
  • New video manual announcement
  • Rudder shear pin upgrade

Media:ECN16_FIX7.pdf (issued September 17th, 1996)

  • Lower gudgeon transom reinforcement

Media:ECN17_FIX8.pdf (issued March 3rd, 1997)

  • Compression strut U-bracket upgrade

Media:ECN18_LEEBOARD.pdf (issued June 5th, 1997)

  • Leeboard announcement

Media:ECN19_SHOCK2.pdf (issued October 15th, 1998)

  • Rebuilding shock absorber

Media:ECN20_Leeboard_info.pdf (issued February 25th, 1999)

  • Leeboard announcement
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