The Sikorsky Cad Block DWG.The Sikorsky cad block CH-53 SUPER STALLION , CH-53E Super Stallion is the largest and heaviest helicopter in the United States military.
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The Sikorsky Cad Block DWG.The Sikorsky cad block CH-53 SUPER STALLION , CH-53E Super Stallion is the largest and heaviest helicopter in the United States military.