NASA Space Shuttle Platform Winches Thern supplied the winches required to raise and lower ET Orbiter access platforms on Space Shuttle pads 39A and 39B. Winches were supplied with grooved drums, limit switches and redundant braking. Because of the hazardous environment with salt air, the winches were epoxy coated. The platforms will be locked out when in position prior to supporting personnel. Winches were supplied with two speed mo

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