Ultimate Spider-Man Animated Series Wiki
Astrocarrier plus Aquacarrier plus Stratocarrier equals Tricarrier!

The S.H.I.E.L.D. Tricarrier is the new mobile and present headquarters of  S.H.I.E.L.D. after the Helicarrier was single-handedly destroyed by the Green Goblin. It can divide itself into three carriers: Astrocarrier, Aquacarrier and Stratocarrier for better deployment to various situations.

It possess the state-of-the-art highly-sophisiticated technologies much more advanced than the Helicarrier itself.

It was turned into HYDRA Island and later Octopus Island. It was destroyed, only avoiding New York through the sacrifice of Scarlet Spider.