On Feb 22, 2:15Â*pm, wrote:
Hello Racers:
The rules for the 2010 racing season have been posted at SSA.org/
sailplane racing/rules&process.

Thanks for posting. I had a quick review of the changed FAI regional
rules and am very confused by this one:

"10.8.5.1.3 ‡ Maximum Start Height shall be specified and labeled as
MSL.."

MSH has always been the difference in elevation between the home
airport and the top of the start cylinder and 10.8.5.1 makes it clear
this has not changed. For a home airport with an elevation of 5,000
ft MSL and an MSH of 5,000ft the top of the start cylinder is 10,000
ft MSL.

Saying the MSH is 5000ft MSL is not valid. Saying the MSH is 10,000ft
MSL is not valid.

Statements that are valid a

"Maximum Start Height is 5,000 ft."

"MSH is 5,000 ft"

"The top of the start cylinder is 10,000 ft MSL"

Why does the rule say "Maximum Start Height shall be specified and
labeled as MSL" ? It appears to be a meaningless statement that only
adds to the confusion of MSH definition.

How would MSH be specified under this rule for the scenario outlined
above?


Andy