Altitude above ground level indication in small planes
Hi,
I have a probably very stupid question that can hopefully be answered by someone....when preparing e.g. a Cessna 172 for a traffic pattern trip over a certain airfield I adjust the QNH to the correct setting so that my altitude gauge is showing the field elevation of that airport.
Lets say I want to fly my traffic pattern in an altitude of 1000feet above ground level. The airport altitude is 350 feet above sea level.
During climb do I really need to reckon 1000 feet + 350 feet to know that I must stop at 1350feet for the height of the pattern? Or is there a trick to show me the above ground altitude inside the cockpit of the cessna?
With the a320 I would just look at the radio altimeter for that.
Thanks!
Best regards Andi