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Twilight Tuesdays Sailing 3 rd Off the Water Session April 21, 2015

Twilight Tuesdays Sailing 3 rd Off the Water Session April 21, 2015. **** Introducing **** Twilight Tuesdays Sailing Open for Fun to All CPYC Members and Their Guest Twilight Sailing Tuesdays. Goals: 1.) Non Competitive Sailing Fun in Different Types of Boats....

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Twilight Tuesdays Sailing 3 rd Off the Water Session April 21, 2015

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  1. Twilight Tuesdays Sailing 3rd Off the Water Session April 21, 2015

  2. **** Introducing **** Twilight Tuesdays Sailing Open for Fun to All CPYC Members and Their Guest Twilight Sailing Tuesdays

  3. Goals: 1.) Non Competitive Sailing Fun in Different Types of Boats.... 2.) Sailing for Fun and Messing Around in Boats Using Boats provided by CPYC Members and Fleets No Boat Required - Just Come and have Fun. Or come have Fun on your Own Boat, crewed by participants 3.) Diverse, Hands On Experience and Fun 4.) On and Off the Water Sessions in a more Social, Fun Setting 5.) No Boat Required.... Just Come and Have Fun! 6.) Learning in a non-stressed, adaptive Fun way. Each night the program will adapt to reflect the interests of those participating, general themes and Fun topics, announced in advance or based on interests of participants. Always at least one entry level boat if you just want to get started 7.) Always Including Dinner and Free Beer ashore

  4. Did I mention that this was all about Fun? and includes Dinner and Free Beer?

  5. April 21  Agenda Knot of the Night “The Truckers Hitch” How Sails Work and Improving Boat Speed  The Importance of Safety at CPYC Mast Tuning and Boat Setup Serving on RC - An Overview (by Dick Thackaberry) Simplified Racing Rules

  6. Reminder! Following the final April 28, 2015 Off the Water Session----- JOIN US FOR On The Water  SAILING FUN ON MAY 5, 2015

  7. Knot of the Night “The Truckers Hitch”

  8. Video of How To Tie a Truckers Hitch

  9. Trucker's Hitch (Power Cinch Knot) Click Here for Animated Version of How to Tie this Knot

  10. https://youtu.be/bUsn0Vyyoy4

  11. The Rolling Hitch For and Animated guide to how to tie a rolling hitch Click Here

  12. Click Here to view Rolling Hitch Video Guide

  13. HOW DO SAILS WORK? What Can we Do to Improve Their Efficiency in the Complex Conditions We Routinely Encounter

  14. Nothing Is Constant The wind over time: • Varies in velocity • Varies in direction • Changes velocity as a function of height (wind gradient) • Sudden changes, gusts and puffs The motion of the hull (and mast and sails) in water: • Pitches • Yaws • Rolls GETTING SAILS TO PERFORM TAKES CONSTANT ATTENTION ----TRIMMING---

  15. The Classic Static View of Airflow over an Airplane Wing or Sail Acting as an Air Foil As we will see this is very simplistic and does not replicate real conditions

  16. The Slot - Acceleration For a more detailed analysis see: http://www.wb-sails.fi/portals/209338/news/Ad_aerodynamics/index.htm

  17. Consider the Jib-Main Combination

  18. This is What the Flow Really Looks LikeDue To Windage and Turbulence

  19. Even a “Simple” Opti sail has complex Flow Conditions

  20. The Airplane Wing And The Sail Are Very Different • The wing • Long, high aspect ratio • Thick and relatively uniform • Low camber • Designed for a specific speed range and constant angle of attack • Has flaps to alter shape for landing and take off • The sail - Low aspect ratio - Highly cambered - Thin and twisted - Must cope with different wind speeds and angles of attack - Uses control lines, sheets, outhaul, downhaul, halyards to control shape and angle of attack.

  21. Actually Four Separate “Wings” on a Sailboat • Mainsail Vertical and shaped just like a Horizontal Wing • Jib Vertical and Matched to Shape of Mainsail • Hull Vertical and Slicing through the Water and Canted due to Heeling • Keel • Vertical and Canted due to Heeling

  22. Wind Tunnels And Smoke Were Used to Visualize Flow.But With Computing Power Now Available CFD And FSI Techniques Accurately Model And Complete Flow Can Be Simulated https://www.youtube.com/watch?feature=player_detailpage&v=1qdPqTKBYzk

  23. https://www.youtube.com/watch?feature=player_detailpage&v=1qdPqTKBYzkhttps://www.youtube.com/watch?feature=player_detailpage&v=1qdPqTKBYzk

  24. Modelling Allows Us To Visual Flow As A Function Of Time https://www.youtube.com/watch?v=m58zdJEsFvk&index=1&list=PLfR-cT9_3EN4juRNRo-URmYi6KG2zfDxo

  25. Modelling Allows Us To Visualize Turbulence Created In The Wake Of SailsTHIS IS “BAD AIR”DO NOT FOLLOWhttps://www.youtube.com/watch?v=_nVg1b4z8ss&index=7&list=PLfR-cT9_3EN4juRNRo-URmYi6KG2zfDxo

  26. Add Waves, More TurbulenceLook At This Star Sailing Upwind https://www.youtube.com/watch?v=zCpVfFDYfWE&index=15&list=PLfR-cT9_3EN4juRNRo-URmYi6KG2zfDxo

  27. It Looks Like This When the Star Bears Away https://www.youtube.com/watch?v=8iRj6aLeCBQ&index=8&list=PLfR-cT9_3EN4juRNRo-URmYi6KG2zfDxo

  28. The Downwind Case Can Also Be Modelled https://www.youtube.com/watch?v=I-wsThD3xKk&list=PLfR-cT9_3EN4juRNRo-URmYi6KG2zfDxo&index=14

  29. We Cannot See The Flow And Turbulence But Can Use Sensors To Indicate The Effects

  30. Tell tales To Adjust Jib Leads

  31. When It Looks BeautifulCheck out this Video starting at about 1:15 for the latest in sail shapes in perfect conditions https://www.youtube.com/watch?v=81SV_h9c4GE

  32. And When It All Goes Very Bad (music by Tchaikovsky) What would you do in that situation, rig down, man in the water???? https://www.youtube.com/watch?v=4w3QwJdzwsE

  33. SAFETY FIRST! KNOW THE CPYC SAFETY GUIDELINES!

  34. An effective SAFETY PLAN Must include:   PLANNING (discussed next) PREPARATION (club, fleet and personal)     TRAINING (club, fleet and personal)      PRACTICE (starting May 5)

  35. RACE SAFETY GUIDELINES If an accident occurs on the water Stay calm Always follow CPYC Safety Procedures Click Here for CPYC Safety Guidelines

  36. If there is a CAPSIZE: Wear PFD Stay with boat Rescue all people first, then boats Personal distress signal. Use Your Radio! Use Sound signals Drop your Mainsail? Plan for squalls, turning turtle etc. Practice pulling people into each of our boats with and without PFDs on the victim. You can’t lift by the PFD because the person is very likely to fall out of it, especially if he is tired or hypothermic. Each Fleet should practice this so they know how to get into the support boats. Rescuers frequently get into trouble. They MUST ALYAYS wear PFDs when going into the water to help.

  37. On water Boats and RC volunteers should ALWAYS contact Club Manager Trey Lang first. Advise RC of your situation as soon as possible. • Trey is a trained nurse and will be able to triage the situation and coordinate a response with you and Club Staff who will be on the water already. • Communicate with VHF Radio via CHANNEL 78. • DO NOT DIAL 911 on the Water. Use 911 Only on Land. • DO NOT USE YOUR CELLPHONE TO CALL 911 • If you don’t receive a response after the second attempt contact the Westport Marine Police on CH 16.

  38. 2. If you think it might be serious – call Trey on his cell (203) 952-9148. Notify RC of your situation via VHF radio on designated channel. 3. Life threatening conditions include – hypothermia, serious bleeding, broken bones, head injury, unconscious – even for a second

  39. 4. Always take an on-water victim to Compo where Westport EMS is located Never return to the club docks. Quickest Transport Via Ambulance from COMPO

  40. 5. Always call Westport Marine Police on CH 16 even if you are bringing someone in yourself, they have extensive first aid and EMT gear and trained people on board and will meet you, help, and escort you in. Due to Budget Cuts, they are not always on the Water!Bring the club manager and RC up to speed on CHANNEL 78 once you have made contact with the Westport Marine Police so additional staff may either assist or replace you on the race course.

  41. Race Committee Safety Responsibilities • Review the Safety Procedures with your Team every time you leave the dock. • Repetition of this material will allow for better decision making during a crisis. • Review where the safety gear and boarding/swim ladders are located.

  42. 2. When and if a boat Capsizes RC should: Have a support boat respond immediately Have the support boat communicate with RC on Channel 78 once they have arrived at the capsized vessel. Communicating the status of the situation back to the main RC boat is critical so further actions and support can be communicated back to CPYC Base Trey Lang who is a nurse by training and will work with the PRO to deploy the right resources and respond appropriately given any situation.

  43. If the vessel needs assistance, always wear a PFD when rescuing or assisting • B. Instruct competitors to ALWAYS stay with the boat • C. Rescue all people first, then boats • Remember……you can’t lift a person by the PFD • because the person is very likely to fall out of it, • especially if the person is tired or hypothermic.

  44. D. If the competitor is having trouble righting the boat, have them remove their sails and wait for any squall to pass before attempting again. E. If a boat turns turtle it may be necessary to attach a harness in order to right a boat Trey and his staff is trained to use the necessary harness and shall take the lead on these procedures. Each class has a different technique on how to properly right it, communicate with the skipper and discuss the course of action as it relates to that vessel.

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