US Navy greenlights high-altitude ASW torpedo launch

The US Navy has announced Initial Operational Capability (IoC) for Boeing’s High Altitude Anti-Submarine Warfare Weapon Capability (HAAWC). The all-weather HAAWC enables the Boeing P-8A Poseidon to deploy MK 54 torpedoes from near or below its cruising altitude. The P-8A cruises typically at around 30,000ft and the ability to attack from higher altitudes means the aircraft doesn’t need to descend and climb again, stressing the pressurised airframe.

HAAWC consists of a modular Air Launch Accessory, or ALA, kit that attaches to a MK 54 torpedo, transforming it into a precision-guided glide weapon. The RAAF operates the P-8A Poseidon and the Mk54 ASW torpedo.

“It’s a major achievement for our team in reaching our goal of establishing a new high ground in anti-submarine warfare,” said Bob Ciesla, vice president of Boeing Weapons. “We look forward to continuing to work alongside the Navy toward the full deployment and operational capability of the system.”

“The initial operational capability milestone marks the readiness of HAAWC for fleet introduction for the Navy and its international partners,” said Dewayne Donley, program manager. “We’re excited to deliver greater flexibility and capability by way of higher-altitude launches from longer distances than previously possible.”

The milestone follows the award of a full-rate production contract for the system to Boeing in August, squadron training, and the receipt of low-rate initial production units.

Additional fielding of HAAWC units are scheduled through 2024, with the potential for production to continue into 2030 under the current contract.