Dufo:
You nail it!
Once again, thank you very much! You can’t imagine how long I was waiting for this response.
My suspicios were correct...with flaps 20, the ground run is 347 ft shorter than using flaps 10.
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Harryw,
If I understand correctly, the GCXO (Los Rodeos airport) has an elevation of 633 m , 2077 ft. Correct me If I’m wrong.
Thank you