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Static and Dynamic Stability of Free-Fall Stores With Freely Spinning Stabilizers,
NAVAL ORDNANCE LAB WHITE OAK MD
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The report is the second in a two-part series of technical reports on the dynamics and aerodynamics of free-fall stores using freely spinning stabilizers. The first report presented aerodynamic data on representative free-fall store. This second report examines the dynamics of freely spinning configurations with 180-degree rotational and mirror symmetries. Specifically, it demonstrates how spin rate, restoring moment, damping moment and mass distribution are interrelated to maintain static and dynamic stability. The effect of stabilizer and forebody asymmetries on the magnitude of the rolling trim arm is also considered. Stability diagrams are developed which present these results graphically. Author
APPROVED FOR PUBLIC RELEASE