I seem to recall Brooklands hard runway was about 1200m. When I first arrived at Farnborough, we had a procedure notified for fixed wing traffic in/out, usually the company B206, until the day (must have been mid '75) either Beamont or Trubshaw took off, and his first words to Farnborough were 'I think I'll have to land with you, my propellor's just fallen off'!! (that's what Honey Monster told me anyway; he took the call, I was on a days leave)