Qn A-model Jetranger (i.e. underpowered at best of times) without a rotor brake (i.e. wait for ages for everything to stop spinning on shutdown) at a South of England aerodrome, on their Air Day, on the hottest day of the year (even less power !).
Calling for start, having been turned down on several occasions due to various things:
"XXX Tower - JetRanger would like to request callsign change to 'Optimist' and then request a start".