On Jul 30, 2:12 pm, John Sinclair
wrote:
Tom,
You are noting the altimeter correction factor and
then applying it to the new altimeter setting, aren't
you?

When I set my altimeter per the Kollsman window, it reads field
elevation +/-20' so there is no correction factor needed.

In a contest, if the field elevation is 1234' MSL, and if there is a
nearby altimeter available, I'll typically see something like
1200-1250, so I just set my 500' finish to be at 1800' MSL as
indicated on the altimeter.

FYI, it's really easy to sync the Kollsman indication to match the
field elevation, but probably not something to be done outside a
repair station.



-Tom