SAVER was the acronym for the Stowable Aircrew Vehicle Escape Rotorseat deployable autogyro.

A description of the aircraft and the NASA wind tunnel test program can be found in the following reference,

A Flying Ejection Seat, Hollrock R. H. and Barzda J.J., NASA. Lyndon B. Johnson Space Center The 7th Aerospace Mech. Symp.; p 275-286, 01 Nov 1972

Source: 2017 AHS History Calendar