Which platform will replace AP-3C Orion for maritime ISR?

• A. P-8A Poseidon
• B. EA-18G Growler
• C. MQ-4C Triton
• D. F-35 Lightning II

Answer: (C)

Long-endurance, persistent maritime surveillance is the goal when replacing an aging patrol aircraft like AP-3C Orion. The MQ-4C Triton is built for that exact mission: a large, high‑altitude, long‑endurance unmanned platform designed to cover vast ocean areas for extended periods. It carries sensors for wide-area radar, electro‑optical/infrared imagery, and signals intelligence, and it can relay data in real time to command centers and surface ships. This combination lets it watch broad maritime regions for many hours without risking crew, making it well suited to take over the ISR role of the AP-3C.

The other options don’t fit as well. The P-8A Poseidon is a manned aircraft, excellent for patrol and anti-submarine missions, but it still relies on a crew and has limited endurance and higher per-hour operating costs compared with a long-endurance unmanned system. The EA-18G Growler focuses on electronic warfare rather than broad maritime surveillance. The F-35 is a multirole fighter with different primary tasks and insufficient endurance for continuous maritime ISR.