- Name: 4-40 Bipe
- Designed by: Doc Mathews
- Published in: RCM Magazine October 1986
- Wingspan: 48″
- Plan Number: 977
- Copyright Free Plan – We’re offering this plan printed and it is this service for which we are charging.
From the Magazine:- That biplanes are immensely attractive to modelers is self evident. What ofttimes is not so evident are some distinct difficulties encountered in building and flying models with two wings. This design is directed at reducing the difficulties while accentuating the attractions.
Copyright Free Plan & Article – We’re offering this plan & article printed and it is this service that we charging for. The plan is available as a free digital download from various sources on the internet however we don’t offer digital downloads only printed copies. Plan and Article are historic.