On Feb 22, 4:48*pm, Andy wrote:
On Feb 22, 4:25*pm, Brian wrote:

Andy,

Where are you getting your definition of MSH?

"10.8.5.1 Each task shall include a Maximum Start Height (MSH)
above the home field. This height shall not be less than 3500' AGL nor
more than 10000' AGL."

Note that MSH is defined as height above the home field, not an MSL
altitude.

For the new rule to make any sense the terminology "Maximum Start
HEIGHT" would need to be abandoned and a new term "Maximum Start
ALTITUDE" would need to be used in its place.

It would be proper and consistent to define Maximum Start Altitude as
10,000 ft MSL in my scenario above.

Andy

Thanks Andy,

I looked at that rule as well, But it is not a definition of MSH it is
only guidence, actually a requirement of what the MSH altitude will
be with reference to the ground.

It makes sense to publish MSH number referenced to MSL, but there is
no way to write rule 10.8.5.1 with reference to MSL as each site is
obviously different.

Brian