On 05/12/2011 3:18 PM, John Cochrane wrote:
"The Future of rules and classes." This one is published (in German)
in this month's Segelfliegen. If you don't speak German (like me),
here's the English version

http://faculty.chicagobooth.edu/john...nd_classes.pdf
or, more generally
http://faculty.chicagobooth.edu/john...h/Papers/#misc

Ok, this is the last one for a while.
John Cochrane



--- Quote ---

The US uses a start cylinder with a top well below cloudbase. The
cylinder removes the concentration of
traffic at the most favorable, upwind edge of the line. Pilots must
spend two minutes below the top of
the cylinder before starting. This is more practical than enforcing a
speed limit. While anything can be
improved, this geometry gives much less incentive for unsafe flying

--- End Quote ---

Hi John,

As usual a well written article with interesting points.

From personal experience I do not like the height and time restriction.
I understand the reasoning behind the rule but I feel that it promotes
unsafe flying by making the pilot spend too much time with his head
down. Instead of looking out we are watching the altimeter and watch in
order to get a valid start.

Thanks for writing the articles, great food for thought.

Luke Szczepaniak