POT Velocity of Air Past Rotorchute mpactors housed in blades Impactors \ Under Blades Downwash \ Velocity (Vy) \ \ Rocket Case Note: Impactors carried within the blades are deployed and retracted for sample collection, Alterna- tively, the impactors can be mounted under the blades (as shown) or may | Velocity of Descent (Vp) Fig. 1 -- Schematic of Rotorchute be mounted separately.