It's getting narrow up there. Would you be able to turn your boat around in her own length? Credit: Daria and Alex BlackwellDaria and Alex Blackwell share the close-quarters manoeuvring techniques they’ve picked up at the helm of a 57ft, heavy-displacement classic ketch Daria and Alex Blackwell share the close-quarters manoeuvring techniques they’ve picked up at the helm of a 57ft, heavy-displacement classic ketch