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  2. RARELY SEEN Helo Aerodynamic Dashed Linear Contrail & Rotor Vortices: Blackhawk & CH-47 Chinook

    RARELY SEEN Helo Aerodynamic Dashed Linear Contrail & Rotor Vortices: Blackhawk & CH-47 Chinook

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  3. Why does history "forget" the first 16 Presidents of the United States of America?

    Why does history "forget" the first 16 Presidents of the United States of America?

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