With a gas welding set or your own MIG or TIG welder at home in your workshop or shed, you need to understand gas cylinders and how you need to look after them.

Anyone flying into New Plymouth airport may look twice at a hangar on the western end of the airfield with an unusual tail of a large aircraft poking out. Few would realise what’s within: ZK-PBY, a 1944 Catalina flying boat, the only airworthy one in New Zealand and a remarkable aircraft with a remarkable history.