Originally Posted by
skydiver69
How unreliable was the York in comparison to the Lancaster, given their linked heritage and similar engines?
As I've pointed out elsewhere military utilisation, even in time of war, is a lot less than civil. Hence a level of unreliability that would be acceptable for a Lancaster flying one sector a day with a maintenance shop at the destination could be disastrous for a York flying several sectors a day.
e.g. compare Scampton-Berlin and back without landing once per night with
the Berlin Airlift duty Hamburg-Berlin Berlin-Hamburg several times a day