"Only another 700kg" costs about about £600 per hour, multiply that by the number of hours in your average sector length.
1,500kg per hour, per engine is for a fully loaded A320 with full fuel, it comes down to 1,100kg per hour, per engine for an almost empty one as others have pointed out.
What's the point of an A321?
There's more to it than just fuel - think fleet commonality (crew, training, parts)
Last edited by Superpilot; 24th Nov 2014 at 13:32.