"The Navy does not plan to provide routine updates beyond approved public releases because of operational security and program sensitivity," a Navy official told TWZ.
N98 is evaluating the Compact Air-to-Air Missile (CAAM)
The Navy disclosed the Compact Air-to-Air Missile (CAAM) as part of a briefing that also unveiled the long-range AIM-424 Malice LRAAM at the Tailhook Association’s annual convention. The service described CAAM as a "future inner boundary weapon" whose requirements are "being evaluated and assessed by N98," the Air Warfare Division of the Office of the Chief of Naval Operations, according to TWZ reporting. Beyond that identification, the Navy said updates will be limited for operational-security reasons.
NAWCWD seeks Highly Loaded Grain rocket technology to support CAAM
Naval Air Warfare Center Weapons Division (NAWCWD), part of Naval Air Systems Command (NAVAIR), issued a contracting notice earlier this year explicitly tying propulsion work to CAAM. NAWCWD's notice said it intends to "develop and demonstrate technology that results in greatly enhanced kinematic capability for the next generation of tactical missiles" and singled out high total impulse loaded and energy-tailorable solid propulsion systems for transition into compact weapon systems, "including a Compact Air-to-Air Missile (CAAM)." The notice lists deliverables ranging from concept design and build-to-print data packages to experiments on critical components and rocket motors and a plan to mature a CAAM HLG Concept Design to a state ready for Department of Defense Engineering and Manufacturing Development (EMD).
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See what we buildHLG motors and the promise of 1.5x range for inner-boundary weapons
"HLG" stands for "Highly Loaded Grain," solid-fuel designs intended to maximize output per volume. NAWCWD and NAVAIR materials cited in TWZ reporting describe mission-modular propulsion systems tied to the Next-Generation Highly Loaded Grain project that can "increase weapon ranges by up to 1.5x while maintaining inner boundaries for short-range and time-critical missions." That trade—more thrust from a smaller volume—directly addresses the CAAM goal of squeezing better kinematics into constrained internal bays.
How CAAM connects to AIM-9X CV, AIM-424, and historical concepts
The CAAM's stated goals mirror language used elsewhere. The Navy’s Fiscal Year 2027 budget described an AIM-9X Compact Variant (AIM-9X CV) as repackaging "the SIP IV technology into a compact airframe optimized for internal carriage on advanced aircraft with improved kinematic performance," delivering "greater standoff range, increased aircraft weapon station capacity, and maintains inner boundary performance." TWZ notes it is unclear whether CAAM and the AIM-9X CV are distinct programs or overlapping efforts, but the CAAM rendering shown at Tailhook looked visibly different from the AIM-9X.
Industry concepts over the past decade provide design precedents cited in TWZ: Raytheon’s Peregrine (unveiled in 2019) was pitched at roughly half the size of an AIM-120 while offering comparable range; Boeing proposed a multi-stage long-range LRAAM concept whose first stage could conceivably be repurposed; and Lockheed Martin previously promoted a compact Cuda design focused on internal carriage. Boeing also received AFRL funding in 2022 to investigate subsystems to support Compact Air-to-Air Missile and Extended Range Air-to-Air Missile systems, a linkage TWZ highlights.
Why internal carriage and 'inner boundary' performance matter for F-35, F/A-XX, and CCAs
The Navy emphasized "increasing internal carriage capacity for inner boundary weapon" in the same presentation that introduced AIM-424. Internal carriage considerations point to the F-35 and future carrier aircraft designs like F/A-XX, and to prospective Collaborative Combat Aircraft (CCA) drones that could have internal bays. TWZ reports that constraints on internal bay volume have driven interest in smaller missiles that increase magazine depth so stealthy platforms can carry more weapons while remaining low-observable. The story also notes that the military’s current lower-cost air-to-air option against drones—the anti-air variant of the 70mm Advanced Precision Kill Weapon System II (APKWS II)—cannot be fired from the internal bays on the F-35 or the F-22, underscoring an operational gap CAAM could help fill.
What this means for the Navy, the Air Force, and defense contractors
- The Navy: will be assessing CAAM requirements through N98 while protecting details for security reasons and is pushing to expand aircraft anti-air capability both at short ("inner boundary") and long ranges.
- The Air Force: is publicly tied to at least one compact-missile effort—the AIM-9X CV is a joint program with the Air Force—suggesting potential interservice interest in compact weapons for stealthy platforms.
- Defense contractors: have existing concepts and prior work—Raytheon, Boeing, and Lockheed Martin are all cited—and NAWCWD’s contracting notice signals near-term opportunities around HLG rocket motors and concept maturation work.
The Navy's CAAM push threads together propulsion advances, internal-bay geometry, and a concern about large-volume, multi-vector attacks. The facts TWZ published show a service intent on getting more shots per sortie from stealthy aircraft and future drones; the technical lever the Navy is betting on—Highly Loaded Grain motors—promises a measurable performance gain, even as officials limit public updates until programs reach approved release points. The unanswered linkage between CAAM and existing compact-variant programs like AIM-9X CV remains the central question left by Navy disclosures at Tailhook.
