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Ring and bead gunsights don't often appear on operational aircraft. Though some early manuals describe how to use the torpedo aimer as a gunsight, and later ones show a reflector sight mounted in the cockpit.factory modified experimental ground attack version with 2 x 37mm cannon and 2 x .50 cal machine guns in nose, waist guns supposedly moved higher, also reportedly had 4 x .50MG in wings. Engines said to have had small scoops and extended nacelles, horn-balanced rudder.
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