Originally Posted by booglaboy
And airbus told Qf the 380 a-chks take 50 man hrs. Manufacturers can claim whatever they like. Reality is a different beast
I assume you read the part about "however, flight and ground tests completed in May 2010 revealed that the fuel burn improvement was better than expected at 1.6%".
I'd be guessing but a 1.6% fuel saving counts as "substantial" methinks.