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A photograph showing what the H-47 Aft Rotor Head Droop Stop Shrouds look like when installed. These shrouds were designed to prevent ice from building up on the droop stop assemblies that could otherwise jam the mechanism and prevent the stops from positioning properly on engine shutdown. In that event, the aircraft would incur serious damage. The major disadvantage of the shroud, when installed, was that the Flight Engineer could not see whether the droop stops were in the correct position before the pilot shut down the engines. Normally the Flight Engineer looks for an "H" pattern formed by reflective tape placed around the horizontal hinge pin. Click-N-Go Here to view a labeled version of this image. |
