The Observer, a Bostonian rubber powered model

This is a rubber powered model airplane, called "The Observer". It belongs to a class of models, called "Bostonian". A "Bostonian" model has a wingspan of 16" / 406mm and a box of 1.5" x 2.5" x 3" should fit into the fuselage. These models are relatively easy to build. The plan is freely available at outerzone: https://outerzone.co.uk/plan_details.... Wingspan: 16" / 406 mm Weight: 15.3 g without rubber