Production Ejection Seat Removal. This is the third seat, another Weber design, designed for the F-106 and was the final production seat used during the greater part of the F-106 career. It is a true zero-zero, “0-0” ejection profile and unlike most 0-0 seats of its day (or even of today) was live-tested in the 0-0 mode in late 1965 during Project 90. This new seat was not only designed to provide escape at zero-speed and zero-altitude, but also at all speeds below 600 knots.