Description: Fabricate & test a small baseline non-tuned flutter model carried on F-15. Fabricate & test a small FMC tuned flutter model carried on F-15. ATW 1 and 2 were previously flown on the F-15. Demonstrate that tuned article flutter airspeed is 15% higher than non tuned.

Benefits: Future aircraft require both light weight and high aerodynamic efficiency. High aspect ratio and/or thin wings. Inherently flexible configurations. Flexible matrix composites (FMC) could provide sufficient suppression of flutter modes passively to enable these future aircraft FMC could alleviate need for active control of flutter modes while maintaining weight budgets