For heaven's sake people, in Alderney we would die for a Twotter. You're lucky you aren't confined to BN2s. You think 150kts is slow! Try 120kts with the engines at highest economic cruise setting and so much noise you can't hear yourself think. Yes, we love our Trislanders but wouldn't DHC6s be nice... yes, they would. My advice is stick with the Twotter and don't faff about with any serious runway extensions; any more than 700m of tarmac and you start eating up the island. If it ain't broke...