Momentum Aeronautics is a full-service aircraft engineering company with a track record for project completion and support from beginning to end of the process. Specialized in landing gear and interior modifications, Momentum also has capabilities for STCs, repairs, alterations and airworthiness. Momentum's team includes a full complement of FAA Designated Engineering Representatives (DERs) and Designated Airworthiness Representatives (DARs) to meet your aircraft certification and airworthiness requirements.