Original sentence: VFA-31, originally established as VF-1B on July 1 1935 flying the Boeing F4B, is the third oldest active US Navy squadron (behind VFA-14 (1919) and VFA-11(1927)
Edited sentence: VFA-31, originally established as VF-1B on July 1 1935 flying the Boeing F4B, is the third oldest active US Navy squadron (behind VFA-14 (1919) and VFA-11(1927))