Photos of F-84 aircraft by, or from the collection of, Gregory S. Spahr, used by permission.
YF-84F No. 2 serial number 51-1344; the "FS-344B" is because this aircraft is the third "FS-344" in inventory. This second F-84F prototype has the deepened fuselage to accomodate the larger engine as proposed for the F-models, but retains the single ventral speed brake and the G-model style bubble canopy. USAF Photo via Gregory S. Spahr.