Screen height?
Can someone help me out with a perf question on screen height.
As I understand, the screen height is predicated on toda which can include a clearway. If that is the case and the clearway is the max allowed then in the case of a performance limiting field (no flex, max flap, toga) then the main wheels over the end of the physical runway may be well below 35ft (or 15ft) However. in other definitions it states the screen height is above the end of "takeoff surface". If the screen height was based on tora then I understand completely but if it`s based on toda (with a clearway) then you could possibly get airborne with the main gear literally skimming the runway end identifier lights. Help please.