Airlift Aircraft: Background and Issues for Congress
Congressional research reportMar 17, 2026
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March 17, 2026
Airlift Aircraft: Background and Issues for Congress
The U.S. Air Force operates airlift aircraft to transport
personnel, equipment, and supplies in support of military
operations worldwide. Airlift aircraft support a function
known as rapid global mobility, enabling the United States
to project and sustain forces across long distances. During a
17-day period in August 2021, more than 250 U.S. mobility
aircraft (a category of military aircraft that includes both
cargo/personnel transport aircraft and aerial refueling
tankers) evacuated about 124,000 U.S. citizens, allied
personnel, and Afghan evacuees from Afghanistan—the
largest noncombatant evacuation operation in U.S. history.
The Air Force conducts airlift missions through Air
Mobility Command (AMC)—the U.S. Transportation
Command (TRANSCOM) component responsible for
transporting personnel, equipment, and supplies for the U.S.
Department of Defense (DOD, which is using a secondary
Department of War designation, under Executive Order
14347). AMC operates three categories of airlifters—
executive, tactical (or intra-theater), and strategic (or intertheater). Airlift missions include combat, executive
transport, humanitarian relief, and specialized training. The
Air Force directs the executive airlift mission using a
specialized fleet—VC-25A, C-32A, C-40, and C-37—to
provide secure, reliable, and global transportation for the
President, Vice President, and other high-ranking civilian
and military leaders. The Air Force operates four principal
airlift aircraft: the C-130H and C-130J, which primarily
conduct tactical airlift missions, and the C-17A and C-5M,
which primarily conduct strategic airlift missions.
Through annual defense authorization and appropriations
legislation, Congress influences the composition, size,
modernity, and sustainment of airlift fleets. Related
legislation may determine whether or not to fund upgrades,
develop next-generation platforms, or replace aging ones.
Congress has also begun to scrutinize the use of military
airlifts for third-country deportations.
Presidential Airlift
The Air Force operates two VC-25A “Air Force One”
executive aircraft to provide air transport for the President.
Modified Boeing 747-200Bs are also used to transport the
president and guests and are equipped with specialized
electronics and communications equipment, a conference
and dining room, and accommodations. The Air Force plans
to replace the aging VC-25As, first flown in 1990, with two
VC-25B aircraft, which are modified Boeing 747-8s. The
VC-25B program previously scheduled aircraft delivery to
begin in 2022; however, the manufacturer encountered
delays related to labor shortages, supply chain disruptions,
and engineering changes and now reportedly projects
deliveries to begin in mid-2028. Upgrading efforts also
include reportedly acquiring two additional 747-8s for crew
training and spare parts. The Air Force is reportedly
modifying a Boeing 747-8 aircraft—provided by the Qatari
government as a “contribution”—as a “bridge” aircraft until
delivery of the VC-25B aircraft. President Trump said in
May 2025 the Qatari aircraft, expected to be operational by
summer 2026, would be decommissioned for use by his
presidential library after he leaves office. Air Force officials
said in June 2025 that funding details for the retrofit of the
Qatari aircraft are classified. In 2025, some Members
introduced legislative measures in opposition to the transfer
and acceptance of the Qatari aircraft (e.g., S.Amdt. 3109,
not agreed to in Senate, 46-50; H.Res. 410; and S.Res. 244).
C-130H and C-130J
Figure 1. C-130 Hercules
Source: U.S. Air Force.
The C-130 Hercules cargo aircraft, first produced in 1951,
performs tactical airlift missions. The aircraft can operate
from short, unpaved, or austere runways and is the Air
Force’s primary platform for airdropping personnel and
cargo into contested environments (i.e., those featuring airdefense systems and other adversarial capabilities). The C130H variant is operated mainly by the Air National Guard
and Air Force Reserve and is undergoing upgrades through
the Avionics Modernization Program Increment 2 (AMP
Inc 2). The Air Force states the upgrade integrates a new
flight management system, autopilot, and digital avionics to
enhance aircraft capability, reliability, and crew efficiency.
The C-130J Super Hercules, the newest variant of the
Hercules, is replacing legacy C-130H aircraft. The C-130J
incorporates updated propulsion, avionics, and flight
control systems, allowing it to operate with fewer crew,
climb faster and higher, fly farther, and take off and land in
shorter distances compared with earlier variants. Lockheed
Martin manufactures the aircraft in Marietta, GA.
The Air Force modifies C-130Js to conduct specialized
missions. For example, AC-130Js support special
operations forces, whereas HC-130Js conduct personnel
recovery missions. Although the Air Force is replacing C130H aircraft for the C-130J, the transition is not one-forone. The service is inactivating some C-130H squadrons,
potentially shifting associated missions to other platforms
or domains. As of 2025, the Air Force operated 102 C130Js on active duty, the Air National Guard operated 40
https://crsreports.congress.gov
Airlift Aircraft: Background and Issues for Congress
C-130Js and 91 C-130Hs, and the Air Force Reserve
operated 12 C-130Js and 13 C-130Hs. The Navy operates
the EC-130J as a command relay for nuclear submarines.
C-17A
Figure 2. C-17A Globemaster III
Next-Generation Airlift (NGAL)
In November 2025, as part of its Airlift Recapitalization
Strategy, the Air Force announced plans for the C-5M fleet
to remain operational through approximately 2045 and the
C-17A fleet through approximately 2075. The proposed
Next-Generation Airlift (NGAL) program is intended to
replace both fleets. According to the Air Force, with an
accelerated analysis of alternatives in FY2027, stable
funding, and uninterrupted acquisition process, NGAL
production could begin in FY2038 and initial operational
capability could occur in FY2041. Plans call for NGAL to
replace the C-5M fleet on a one-for-one basis, followed by
replacement of the C-17A fleet. To mitigate risks associated
with acquisition delays, prevent capability gaps, and
maintain mission capacity, the Air Force has emphasized
sustaining the existing C-5M and C-17A fleet until a
replacement is operational.
Source: U.S. Air Force.
Connectivity
The C-17A Globemaster III serves as the Air Force’s
primary airlift aircraft. The aircraft can rapidly deliver
troops and cargo to main operating bases or forwardoperating locations. The aircraft can conduct strategic and
tactical airlift missions, perform airdrops, and transport
litter and ambulatory patients during aeromedical
evacuation operations.
The Air Force first flew the C-17A in 1991 and planned for
a total fleet of 120 aircraft. The Air Force later expanded
fleet requirements to 180 aircraft, and Congress
subsequently funded additional aircraft beyond Air Force
requests, bringing the total fleet to 223. The Air Force now
operates 222 C-17As. As of 2025, 146 aircraft are assigned
to active-duty units, 50 to the Air National Guard, and 26 to
the Air Force Reserve.
AMC has stated plans to modernize connectivity of the
mobility fleet to enhance both line-of-sight (e.g., radio) and
beyond line-of-sight (e.g., satellite) secure communications.
According to the Air Force, improved access to tactical data
networks by airlift aircraft could increase mission success
in contested environments by enhancing survivability,
agility, and situational awareness for aircrews and
command and control elements. Such connectivity could
provide aircrews with timely information on potential
threats, fuel availability, and alternate landing locations in
degraded communications environment.
C-5M
Figure 3. C-5M Super Galaxy
Selected FY2026 Legislative Activity
Section 161 of the National Defense Authorization Act for
FY2026 (NDAA, P.L. 119-60) directed the Air Force to
conduct an analysis of alternates to identify potential
solutions for the recapitalization of the executive airlift
aircraft fleets. The NDAA authorized $602 million for the
VC-25B program. The Department of Defense
Appropriations Act, 2026 (P.L. 119-75, Division A),
matched the authorization for the VC-25B program.
Congress provided $976 million in additional funding to
acquire six C-130Js for the Air National Guard and $165
million for one LC-130J for polar missions, according to
the accompanying joint explanatory statement.
Potential Issues for Congress
Source: U.S. Air Force.
The C-5M Super Galaxy performs strategic airlift missions
and is the largest aircraft in the Air Force inventory. The
aircraft is capable of transporting oversized cargo over
distances of more than 4,800 nautical miles. The aircraft’s
nose and aft cargo doors can be opened simultaneously,
enabling concurrent loading and unloading to reduce
ground time. The C-5M is a modernized variant of the C-5
aircraft originally manufactured in 1968. Modifications
have included new engines to improve performance,
reliability, and mission availability. As of 2025, the Air
Force operates a total of 52 C-5M aircraft, with 36 assigned
to active-duty units and 16 to the Air Force Reserve.
Congress may consider whether or not to establish statutory
requirements for the overall size and composition of the
airlift fleet. Members may consider whether or not to
authorize the Air Force to retire additional C-130H aircraft,
procure more or fewer C-130Js, or develop a nextgeneration airlift aircraft to replace C-5M and C-17A fleets.
Related considerations include whether or not to fund
upgrades to existing aircraft—such as communications or
survivability enhancements—and how to balance near-term
modernization needs against long-term recapitalization
efforts. Members may assess the cost of operating military
aircraft to support other government agencies. Congress
may consider oversight questions to monitor aspects of the
Qatari-donated 747, including cost and schedule,
acquisition processes, levels of classification, security risks,
operational control, and eventual ownership.
Joshua Korzilius, U.S. Air Force Fellow
https://crsreports.congress.gov
Airlift Aircraft: Background and Issues for Congress
IF13184
Jennifer DiMascio, Analyst in U.S. Defense Policy
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