The RNLI’s all-weather lifeboats are all named after rivers. Naval Architect Peter Eyre explains what’s so special about the Shannon Peter Eyre talks about the challenges of designing a lifeboat capable of heading into extreme conditions – a lifeboat that can even self-right. Above all, he tells us, it’s about engineering the safety of the crew.  200 Voices is produced by Adventurous Audio for the RNLI    Interview by Adventurous Audio Soundtrack composed and performed by Jon Nicholls    The RNLI is a charity celebrating 200 years of saving lives at sea - find out more at RNLI.org/200