“The United States Navy (USN) is seeking a new, modular interceptor to serve as the basis for the Naval Modular Missile (NMM) program, a next‑generation initiative designed to revolutionize surface naval capabilities through multi‑mission utility, enhanced capacity, and a modular open architecture,” according to the recent draft request for solutions notice.
Overview: a single family, many shapes
The Navy has publicly outlined a vision for a family of modular surface‑to‑air missiles—collectively called the Naval Modular Missile (NMM)—built around a common Terminal Stage Interceptor (TSI). The draft contracting notice and materials released around a Naval Sea Systems Command (NAVSEA) industry day describe at least four distinct All‑Up‑Rounds (AURs) that would use the same terminal element but differ in boosters, canisters and mission role. Aviation Week was first to report on the draft notice online.
Terminal Stage Interceptor (TSI) design and options
The TSI is specified in the notice as a ten‑inch‑diameter, five‑module package: the Seeker Assembly Module (SAM), Lethality Module (LM), Command Module (CM), Terminal‑Stage Rocket Motor (TSRM), and Control Actuation Module (CAM). The notice says the TSI “will be integrated with multiple booster stacks and canisters to achieve a robust family of multi‑mission and multi‑platform variants.”
The draft outlines multiple seeker approaches the Navy is considering—active radar, imaging infrared, and passive radiofrequency—and notes the possible value of multi‑mode seekers as countermeasure environments expand. The document also frames high agility as a requirement for variants intended to address high‑supersonic or hypersonic, maneuvering threats.
NMM AURs: LR, DP‑ER, QP‑MR — and ER‑S for submarines
The Navy’s current concept includes four AUR types. The Long‑Range (LR) variant is intended to fit inside a single Mk 41 Vertical Launching System (VLS) cell and to leverage a 21‑inch rocket motor; the service describes the LR as bringing “multi‑mission, hypersonic capability to the Mk 41 VLS.” The draft renders the LR alongside existing missiles such as the SM‑3 Block IIA and the proposed SM‑6 Block IB as visually and conceptually similar.
Two slimmer variants—the DP‑ER (dual‑packed extended range) and the QP‑MR (quad‑packed medium range)—are sized to be multi‑packed inside a single Mk 41 cell to increase magazine depth. The notice contrasts those concepts with current Standard Missile family practices, where some variants are loaded one per cell.
Most notably, the NMM family includes an ER‑S extended‑range member intended for launch from future Virginia‑class attack submarines equipped with the Virginia Payload Module (VPM). The VPM consists of four large vertical launch tubes and is set to be integrated first on Block V Virginia boats; ER‑S would be loaded into those tubes via a seven‑cell Multiple All‑Up‑Round Canister (MAC) adapter first used on Ohio‑class guided missile systems.
Operational and logistical implications the Navy describes
The Navy’s 2027 Fiscal Year budget request indicates the service is aiming to eventually supplant its existing Standard missiles with NMM types, and the contracting notice frames NMM as providing both “advanced defensive and offensive capability to out‑pace the threat” for the US Navy, Joint Force, Allies and Partners. The service is requesting $311 million for NMM development in FY2027 and labels the effort a “new start.”
Logistically, the Navy envisions modular production across multiple vendors, saying it could leverage several suppliers for TSI components and rocket motors and is aiming for a production rate of 1,000 interceptors per year within five years of a contract award. The draft and associated budget materials reference alternative acquisition pathways—including Other Transaction Authorities and “Marketplace” platforms—to speed procurement and expand suppliers.
On ships, DP‑ER and QP‑MR multi‑pack concepts would increase magazine depth versus current practice, where only the Evolved Sea Sparrow Missile (ESSM) is typically multi‑packed in VLS cells. Increased magazine depth is presented as a counter to expected large raid engagement tactics and supply vulnerabilities highlighted by recent operations in the Middle East and other demands on inventories.
What this means for the US Navy, the Joint Force and defense contractors
- For the US Navy: NMM would represent a major change in ordnance architecture—common terminal electronics across missile types, potential hypersonic LR and ER‑S variants, and a stated plan to replace legacy Standard missiles. The service is pursuing rapid acquisition mechanisms and budgeted a $311 million new‑start ask for FY2027.
- For the Joint Force and Allies: The Navy’s materials frame NMM as a means to increase defensive and offensive depth across theater‑level alliances, with LR and ER‑S variants described as having hypersonic speed to “close the kill chain faster.” The notice explicitly names Allies and Partners as intended beneficiaries of the capability.
- For defense contractors and suppliers: The Navy is seeking modularity and competition—multiple vendors for TSI modules and booster elements—and has set an ambitious production goal of 1,000 interceptors per year within five years of contract award, creating potential opportunities and scale demands across the supply chain.
The Navy’s NMM concept, as outlined in the draft notice and related budget documents, maps a deliberate and disruptive rethink of shipboard and submarine air‑defense ordnance: a common, modular terminal interceptor used across long‑range, multi‑packed and submarine‑launched variants; an ambition to field hypersonic speeds in LR and ER‑S types; and an industrial strategy aimed at rapid, multi‑vendor production. At the same time the documents themselves acknowledge hard tradeoffs—particularly the signal a submarine generates when firing a large interceptor—and the Navy appears to remain early in defining final requirements and operational doctrines.
https://www.twz.com/sea/u-s-navy-is-seeking-a-submarine-launched-anti-air-missile
