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The retirement of the US Navy’s Grumman C-2A Greyhound marks a fundamental shift in carrier strike group logistics. The shift to a tiltrotor puzzles many mainstream aviation observers because the V-22 Osprey actually carries less payload over a shorter unrefueled distance than the airframe it replaces. For 60 years, the carrier onboard delivery (COD) mission relied on conventional turboprops capable of navigating the high-stress environment of catapult launches and arrested landings.
For six decades, that grueling pipeline belonged to the Greyhound, a twin-engine turboprop built to endure the punishing forces of steam catapult launches and tailhook landings. That era concluded when the final two Greyhounds were trapped aboard the USS Nimitz for the last time, ending an era of tailhook aviation. The mission now belongs to the Bell Aircraft Corporation CMV-22B, a specially modified variant of the world’s first tiltrotor.
The logistical strategy behind this choice hinges on how an aircraft carrier projects power across a contested theater. While a fixed-wing transport is confined to the aircraft carrier itself, a tiltrotor can even skip the boat’s flight deck to service smaller surface combatants and even field outposts directly. The decades-long effort to field the Osprey shows that modern naval logistics are optimized for a flexible, decentralized network, but with one central purpose: sustaining fifth-generation fighter jets.
A Trade Made For One Component
Critics point out that the raw cargo figures point to a reduction in the COD mission’s success. This is because the CMV-22B has a 6,000-pound payload restriction, but the Greyhound can carry about 10,000 pounds. However, concentrating only on this limitation overlooks a significant improvement in total operational capability. In almost every other category, the Osprey easily surpasses its predecessor.
The COD is transformed from a stiff, carrier-only shuttle into a highly adaptable logistical tool that benefits the entire fleet thanks to the tiltrotor. Inside the cabin is the crucial rationale for the change. According to the Center for Maritime Strategy, the F-35C’s F135 power module weighs about 3,750 pounds and is too large to fit through the Greyhound’s cargo door without a complex disassembly process. The CMV-22B’s wider cargo bay handles this heavy propulsion component completely intact, a vital capability that now supports every carrier strike group deploying with the stealth fighter.
Crucially, this design advantage extends beyond the flight deck. Because the CMV-22B shares a common airframe with the Marine Corps MV-22B, it can transport the F135 engine modules used by both the Navy’s F-35C and the Marines’ F-35B Jump jet variant. This shared logistical pipeline provides a massive boost to the combined Navy-Marine Corps team, making the Osprey a vastly superior platform for 21st-century distributed maritime operations.
The Value Of A COD That Can Do VERTREP
The CMV-22B maintains the Greyhound’s cruising performance while providing a significant increase in operating utility. Crucially, this also makes it capable of performing a mission called vertical replenishment. VERTREP is sling-loading a pallet or various other cargo items in nets below a helicopter, typically, and dropping them on the deck of a ‘small boy,’ as USN destroyers are known.
Because it can take off and land vertically like a helicopter, the Osprey can also touch down on the same decks used by the Sikorsky SH-60 Seahawks in most cases. Even as a backup plan, this capability lets it bypass the carrier entirely. If needed, it can deliver directly to smaller escort ships, amphibious decks, and Marines stationed at remote outposts ashore.
This flexibility is well aligned with the Joint Forces’ changing doctrines in the Middle East and Western Pacific. The Osprey’s vertical mobility perfectly complements the Air Force’s Agile Combat Employment strategy and the Marine Corps’ return to decentralized Raider operations. Furthermore, because it does not require conventional runways, the CMV-22B can operate from a vast network of small civilian airfields and remote islands, making deployment far easier even during peacetime operations.
Financially and logistically, the platform operates on an entirely different scale. Driven by two 6,200 shaft horsepower Rolls-Royce engines, the Osprey matches the Greyhound’s range while carrying its maximum payload over 1,150 nautical miles (2,130 km). Unlike its predecessor, it features midair refueling to extend that reach indefinitely. Inside the cabin, a powered ramp and roller system accommodate standard military cargo pallets alongside 24 passengers, offering a seamless and versatile logistics pipeline for the 21st-century fleet.
Growing Pains At Sea: The CMV-22B Transition
The future COD design competition was concluded on February 3, 2016, when the Navy’s future transport was formally named the CMV-22B. The service chose a platform that shared the majority of its supply chain, engines, and airframe with tiltrotors already in use by the Air Force and Marine Corps. The first production aircraft was delivered by Bell in February 2020, and by December 2021, the type had reached its first operational capability.
Rather than starting the certification process from scratch, officials attributed the shortened four-year timetable to reusing MV-22 test data. However, there was a clear logistical cost associated with that rapid development. Due to the shortening of conventional operational testing, a large portion of the evaluation took place while the aircraft was already conducting front-line fleet logistics missions, which resulted in a number of unfavorable initial findings.
The Navy created three specialized squadrons organized from the former Greyhound community on both coasts to oversee this transition. Active fleet activities were managed by VRM-30 at Naval Air Station North Island and VRM-40 at Naval Station Norfolk. The task of instructing incoming flight crews on the new tiltrotor fell to VRM-50, which is also based at North Island.
In its fiscal year 2023 annual report, the Pentagon’s Director of Operational Test and Evaluation issued a direct assessment. Due to component failures in several subsystems, the evaluation concluded that the CMV-22B was not operationally suitable. The ice protection system was the worst issue, accounting for 44% of all operational mission failures, according to testers. The War Zone reported that these de-icing failures forced mission aborts at twice the rate previously disclosed to the public. Testers also criticized the lack of a pressurized cabin, which forces the aircraft to fly at lower altitudes. This restriction exposes the crew to worse weather patterns while thinning out emergency diversion options over the open ocean.
A Navy spokesperson countered that the poor metrics reflected aircrews still growing familiar with a brand-new platform rather than a permanent ceiling on reliability. Follow-on testing was scheduled to reassess the aircraft with more mature crews. That debate became secondary a few months later, when separate mechanical issues grounded the entire global V-22 fleet anyway.
The Safety Grounding And Mechanical Crisis
A deadly Air Force CV-22B crash near Japan in November 2023 prompted a global Pentagon grounding of all V-22 variants, including the Navy’s CMV-22Bs. This unexpected stand-down compelled the Navy to reverse course on a trajectory that had already been essentially completed on the West Coast.
The Navy had no choice but to quickly put a handful of C-2A Greyhounds back into action. There was no time to delay and wait for the technical solution to be worked out by Bell and Boeing in order to keep resupply flights flowing to carrier strike groups. Leaving the CSG without dependable access to their ship-to-shore lifeline is not a luxury but rather a necessity that demands unbroken continuity.
Fleet Logistics Support Squadron 40 took up carrier onboard delivery tasks on both coasts while the Osprey fleet remained idle. Even after flights began, the CMV-22B remained subject to a temporary 30-minute flying restriction, postponing full operational capabilities until fiscal year 2024. The Navy emphasizes that its CMV-22B fleet has had no fatalities or operational incidents during its service life, despite the Air Force variant having a high Class A mishap rate.
For a carrier air wing flying thousands of miles from shore, where personnel cannot easily divert if an aircraft has technical issues, this safety distinction is extremely important. Congress has continued to demand more information about fleet choices and V-22 nacelle upgrades. Despite the tiltrotor’s advanced capabilities, the Navy nevertheless needed a reliable conventional backup during the platform’s initial deployment crisis, as demonstrated by the temporary reliance on legacy Greyhounds.
A New Era Of Air Wing Logistics
Despite setbacks, the transition kept moving forward, and by spring, the Navy prepared to retire its remaining Greyhounds. On June 25, two C-2As performed the type’s final carrier landings and catapult launches aboard the USS Nimitz. While these remaining older aircraft will handle non-carrier logistics through the end of the year, their historic days of landing on active flight decks have officially concluded.
In their place, a planned fleet of 44 CMV-22Bs now drives naval resupply across both coasts. Each tiltrotor can transport a full F-35C engine module, travel between warships without a runway, and reach a carrier from land. Rather than merely operating a basic shuttle between a single carrier and the shore, the Navy presents the Osprey as an essential component for transporting cargo across an entire dispersed fleet formation.
Modern Distributed Maritime Operations, a doctrine that disperses combat forces over smaller surface formations rather than concentrating them around a few major decks, is directly supported by this decentralized logistical method. By successfully landing CMV-22Bs on amphibious transport docks, test squadron HX-21 has already validated this ship-to-ship concept. Going forward, whether the Osprey’s long-term reliability metrics continue to improve will determine the strategy’s eventual success.
