The U.S. Navy is requesting proposals for the Silent Anvil Air-Launched Torpedo, a glide weapon designed to strike submarines from greater distances. Two approaches are under consideration: a purpose-built glide torpedo or a glide kit adapted to existing torpedoes. The concept mirrors the Navy’s High Altitude Anti-Submarine Warfare Weapon Capability, which added a glide kit to Mark 54 torpedoes for launch from P-8 Poseidon planes at up to 30,000 feet.
The Silent Anvil torpedo must weigh no more than 268 pounds and fit within a 70-inch length and 7.5-inch diameter to match BRU-61/A bomb rack standards. It should glide at speeds up to Mach 0.85 and altitudes ranging from 10 feet to 60,000 feet, prioritizing endurance in the air and minimal water immersion time. The Navy seeks industry input on maximum standoff glide range, with a prototype expected within 18 months of contract award and 180 full prototypes within three years.
The push comes as China expands its submarine fleet with advanced, long-range robotic subs. The Navy is also developing the Long Range Antisubmarine Warfare weapon to extend torpedo reach from surface ships. Proposals are due by September 29.
