SAS
A blast from the past from boring old phart!!
When I did my first solo on type on the Whirlwind Mk 7 at Predannack airfield in Cornwall my instructor - who was wearing the latest and flashiest whiter than white bone dome,( no inner), climbed out of the left hand seat and as he stood there asked me if I was happy to go on my own. I turned towards him and said yes - fine - but as I turned I moved the stick to the left and the rotor hit him a glancing blow on the top of his helmet!
He had to return the bonedome to the safety equipment section and somehow explain how it was somewhat cracked on the top. He managed that somehow and I managed a couple of circuits without hitting anything else.
Happy days.....................
)