If you are on the helm of a motorboat, you should be vigilant of sailing yachts which can tack suddenly. Credit: Niki Hurrell-Head/AlamyIf you’re at the helm, can you spot a risk of collision with another boat? Do you know when to ‘stand on’ and when to ‘give way’? If you’re at the helm, can you spot a risk of collision with another boat? Do you know when to ‘stand on’ and when to ‘give way’?