DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent relates to a terradynamic brake of tubular configuration adapted to be attached around a projectile-like package which is to be air dropped or otherwise launched and operable to deploy upon striking the ground whereby penetration of the earth is limited. The brake has series of slots aligned with each other. The slots are parallel to the axis of the tube. The forward-most of each series extends from the forward edge of the brake. Upon earth impact, the arch-like portions of brake located between the forward-most slots are bent outward to approximately right angles to the brake axis.