Longest without stopping (even to refuel).? Longest in a straight(ish) line? Longest time in the air? I read some of the answers and still don't know.
Longest without stopping probably 2.9 hours in an R22, from Long Beach to San Diego, round the harbour, and back to Long Beach. Since endurance is only a little over 3 hours...
Longest in straight(ish) line - Elstree to Dundee, or Wolverhampton to Paris, whichever's longest (2 pilots in each case).
Longest time in air - this years's Dawn to Dusk entry, nearly 10 hours, all over central England - and I'm never ever doing it again.
