A320 RTOW charts
Hi guys,
Just had a query with regard to the A320 RTOW charts. On the bottom right corner, you have probably noticed a small entry saying Min Acc. Height and Max. Acc. height as well as Min. QNH alt. and Max QNH alt. Could anyone please shed light on the logic behind these figures because my understanding of them being the heights above elevation of the field doesnt quite fit.
Cheers !!