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Robert L. Semans (SE) John O. Graybill (SKY)

Nose 2 Nose. Over The White-Inyo Range. The Airspace. The Risks. A Solution. Robert L. Semans (SE) John O. Graybill (SKY). The Airspace. . . . The White-Inyo Range. 5 nm North Boundary Peak 5 nm South Cerro Gordo Peak Variable Width All Foothills West & East

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Robert L. Semans (SE) John O. Graybill (SKY)

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  1. Nose 2 Nose Over The White-Inyo Range • The Airspace • The Risks • A Solution Robert L. Semans (SE) John O. Graybill (SKY)

  2. The Airspace . . . The White-Inyo Range • 5 nm North Boundary Peak • 5 nm South Cerro Gordo Peak • Variable Width • All Foothills West & East • Areas of Expected Lift • Valley Floors To Skirt Over Development

  3. The Risks . . . Head-On High-Speed Mid-Air Collision • Bands of Narrow Strong Lift • Concentrated High-Speed Glider Traffic • 20 to 30 Northbound Gliders • 5 to 12 Southbound Gliders • High Cruise to Circle Ratio • Potential Closing Rate of 300 mph!

  4. The Risks . . . continued . . . Head-On High-Speed Mid-Air Collision • 300 mph = 12 seconds per mile • Very Small Head-On Profile • Hard To See White On White • Negligible Angular Displacement • Probably Not Looking Enough To See

  5. The Risks . . . continued . . . Head-On High-Speed Mid-Air Collision • Bail-Out Prospects Are Very Poor • We’re Not Talking Bumps & Scrapes • Explosive Impact • Radical Modification of Your Glider • Kinetic Energy Varies With Square of Speed • Death Likely

  6. A Solution . . . A Formal Collision Avoidance Procedure • Let’s Not Wait For Death To Visit Us • Discipline Can Hold Death At Bay • Safety Can Be Improved With • More Definition • Widespread Publication & Education • Universal Use

  7. A Solution . . . continued . . . “Procedure Alpha” -- 3 Parts Use The Bishop Altimeter (ASOS 119.025) Using 123.5, and a Prescribed Format, Report Position Relative To 6 Agreed Upon Reference Points Directly Negotiate Your Own Collision Avoidance With Nearby Gliders

  8. A Solution . . . continued . . . Six Reference Points Boundary Peak White Mountain Peak Schulman Grove Intersection Waucoba Mountain Mount Inyo Cerro Gordo Peak

  9. A Solution . . . continued

  10. A Solution . . . Continued The Inyo Range Cerro Gordo Pk Mt. Inyo Schulman Grove Waucoba Mtn Independence Lone Pine

  11. A Solution . . . Continued The White Mtn. Range White Mtn Pk Waucoba Mtn Schulman Grove Boundary Pk Bishop

  12. A Solution ... Cont. The White Mtn. Corridor Boundary Pk White Mt Pk Bishop Schulman Grove Waucoba Mtn Independence Mt Inyo Lone Pine Cerro Gordo Pk

  13. Procedure Alpha Part 1 . . . Altitude Separation • Use The Bishop Altimeter (ASOS 119.025) • Common Reference Pressure Is Essential • North & South Pressures Could Be Very Different

  14. Procedure Alpha Part 2 . . . continued . . . Make Disciplined Position Reports • Always When Within 2 – 3 nm of the Airspace • Only When Cruising . . . or • Just As You Start To Cruise • Always Over, or Near A Reference Point

  15. Procedure Alpha Part 2 . . . continued . . . Format For Position Reports Who You Are Calling (“White Mountain Traffic”) Your Contest Number(Or Other Call Sign) Your Direction of Flight(“Northbound” or “Southbound”) Your Altitude Your Position(Over or Near a Reference Point) Your Direction of Flight(“Northbound” or “Southbound”)

  16. Procedure Alpha Part 2 . . . continued . . . Example Position Reports • Northbound: “White Mountain traffic, sky northbound, two point six miles north Mount Inyo, one six thousand four hundred, northbound” • Southbound: " White Mountain traffic, sierra echo southbound, three miles west of Waucoba Mountain, one seven thousand, six hundred, southbound”

  17. Procedure Alpha Part 3 . . . No Hit Negotiations • Call Directly When Close • Danger Danger!! • Altitude Within 1,000 Ft • Very Close Positions • No Visual Contact • Someone Must Change Altitude • By Agreement • Quickly • Carefully

  18. No Guarantees – Be Careful . . . Things That Can Hurt You • “At the root of every human catastrophe is at least one invalid assumption.” • Non-glider traffic … Powered Aircraft & Hang Gliders • Gliders on other frequencies • Gliders with radio failures … or low batteries • Glider pilots who are ignorant of the procedure … or who are reluctant to speak English

  19. No Guarantees – Be Careful . . . More Things That Can Hurt You • Pilots in competition who don’t want to disclose their position • Candidates for the Darwin Award • “Third Glider” Trap Don’t Assume: Who You See Is Who You’re Talking To

  20. Things You Can Do . . . Reduce The Probability of Getting Up Close And Personal • Broadcast Any UFOIn The Airspace • If You Are Higher, Gradually Slow Up. • Be Careful With Big “Zoomies!” • Stay Well Below Cloud Base! • Spread Word About “Procedure Alpha”

  21. To Soar Another Day

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