F84-F ground performance computer airplane circular slide rule 1954 USA

This is specifically designed slide rule for use with the F-84F fighter from 1954 (aka Thunderstreak). Just like the swept-wing turbojet-powered fighter-bomber itself, the slide rule was produced by the Republic Aviation Corporation. It consists of 3 plastic discs and was meant to be used for calculation take-off and landing date. It had not been opened since its production but I needed to take some pictures. The slide rule itself is still sealed and measures 11,5 cm or ca. 4 1/2 inches in diameter. It is in mint condition as is the manual (English). Check the attached video on how to work your vintage man tool : slide rule operation instructions!