Hobby Master Lockheed S-3 Viking Anti-Submarine Aircraft

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

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The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.

The Navy began what became the S-3 Viking program in 1964 to replace the piston-powered S-2 Tracker. Known originally as VSX - for "carrier-based antisubmarine warfare aircraft-X" - a formal request for proposal was issued in April 1968.