I want to know the answer to the following question:
What small errors caused large errors in shell fall height and the time until exploding?
All the background I'm provided with is that "At long range, the aircraft remains in firing range for a long time, so the necessary calculations can in theory be done by slide rules - though, because small errors in distance cause large errors in shell fall height and detonation time, exact ranging is crucial.". Is that enough to answer the question?