High Quality Content by WIKIPEDIA articles! The VF-19 Excalibur is a fictional spacecraft in the anime Macross. It is an Advanced Variable Fighter, the UN Spacy`s latest frontline variable fighter to replace the already aging VF-11 Thunderbolt. In the year 2040, a contest was held for the design of the Advanced Variable Fighter. Two companies, Shinsei Industries and General Galaxy, joined the competitions. Shinsei`s entry was the YF-19 Alpha One (the different code indicating a prototype) and General Galaxy`s entry was the YF-21 Omega One variable fighter.