National Shearwater hobby show By Metro Posted on April 5, 2009 Sign up for our Metro US email newsletter to get news, updates, and local insights delivered straight to your inbox! Rob Guildford from the Society of Radio Control Modelers shows Caleb MacDonald, 5, a de Havilland Canada DHC-1 Chipmunk yesterday at the 11th annual Shearwater Aviation Museum spring hobby show.