Q4.7: For the structure-damper connections, if they are constructed from balsa wood do those members need to adhere to the rules outlining frame member size within section 5.2, and section 5.4 which outlines the rules for connections and gusset plate? As examples of potential violations: a balsa wood member that is 0.4” x 0.2” x 0.75”; or having four 0.2” x 0.2” frame members glued together to create a 0.4” x 0.4” block. Additionally, should the damper be rejected while at competition, would the structure-damper connections need to be removed even if it is clear that they serve no structural purpose?

A: The structure-damper connections do not need to adhere to the rules outlining frame member size as long as they are described in your approved damping proposal.  If the balsa wood members in your connections are not adequately described in the damping proposal and do not conform to the official rules, please email sdc@eeri.org with an image and/or description of your connection to request approval of the balsa wood members.  If the members do not conform to the Official Rules and have not been approved by the SDC chairs, they will either be removed with the damping device or will be allowed to remain with V penalties deducted per the Official Rules.  Should the damper be rejected, the structure-damper connections could potentially remain in place if it is clear they serve no structural purpose.  However, this is at the discretion of the SDC chairs, who may deem that the connections need to be removed.