US Air Force set to become first military operator of Boeing 737 MAX

The US Air Force plans to acquire a Boeing 737 MAX for VIP transport, making it the first military operator of the latest generation of Boeing’s best-selling narrowbody family.

The planned acquisition was first reported by Aviation Week, which obtained confirmation from Air Mobility Command that the service intends to use $250 million authorised in the fiscal 2026 National Defense Authorization Act to expand the capabilities of its C-40 fleet.

“The Air Force intends to purchase a 737 MAX to meet this requirement,” an Air Mobility Command spokesperson told Aviation Week.

No delivery timetable has been announced, and the Air Force has not identified which MAX variant it intends to acquire.

The purchase is nevertheless significant. The Air Force already operates Boeing 737s as the C-40B and C-40C, but those aircraft are based on the previous-generation 737-700. Bringing a MAX into the fleet would appear to introduce the newer generation into US military service for the first time.

Air Force has already begun preparing its 737 pilots for the MAX

There were signs before the announcement that Air Mobility Command was preparing to introduce the aircraft.

In July, AMC sought specialised flight training services to support what it described as the “rapid fielding and safe operation” of a Boeing 737-8 MAX.

The requirement called for differences training for experienced Air Force 737 pilots, allowing crews already qualified on the C-40’s 737 platform to transition to the newer aircraft. The AMC described the training requirement as urgent. The contract is due to take effect on 1 November, while the command said its existing contractor already has an approved MAX differences course.

The reference to the 737-8 in the training solicitation provides an obvious clue about the aircraft being prepared for, although AMC’s subsequent statement did not specify the variant it will ultimately purchase. It would therefore be premature to describe the aircraft as a MAX 8 until the service confirms the configuration.

The existing C-40B and C-40C are derived from the 737-700 business jet, part of Boeing’s Next Generation family that preceded the MAX.

The new aircraft is expected to augment rather than immediately replace the existing fleet.

C-40s carry America’s senior military and government leadership

The C-40 occupies a specialised place in the Air Force transport fleet.

Derived from the commercial 737, the aircraft provides transportation for senior military commanders and government officials rather than performing the tactical airlift missions associated with aircraft such as the C-17 Globemaster III.

The C-40B is configured as an airborne office for senior military and government leaders, allowing passengers to work and communicate while travelling. The C-40C is used primarily for transporting senior military commanders, Cabinet members, members of Congress and other government officials.

The MAX purchase would retain the familiar 737 lineage while introducing a substantially newer commercial platform.

That has advantages for an operator already accustomed to the type. Pilot commonality is one of them, although the requirement for dedicated differences training shows that moving from the 737NG to the MAX is not simply a matter of putting existing C-40 crews into another 737 cockpit.

The MAX incorporates different engines, updated cockpit systems and aerodynamic changes from the 737NG generation.

A MAX purchase has been considered before

This is not the first time the Air Force has looked at the latest 737 family for executive transport.

Aviation Week reported that the service explored buying a Boeing Business Jet MAX 9 in 2025 as part of an effort to augment its Boeing 757-based C-32A fleet. Budget documents at the time envisaged an award in September 2025 and delivery in August 2028, backed by $328.689 million in fiscal 2025 funding. The aircraft was designated C-40D in the proposal, but the purchase did not proceed.

The new plan is different. Funding has now been authorised specifically for a single-aircraft expansion of the C-40 capability, and AMC has publicly confirmed its intention to buy a MAX.

What designation the aircraft eventually receives has not been announced. Although the earlier proposal used C-40D, there is no confirmation in the material released so far that the new aircraft will carry the same designation.

The Aviationist also raised the longer-term question of whether the MAX could eventually play a broader role as the Air Force considers the future of both its C-40s and ageing C-32As. The C-32A is derived from the Boeing 757-200, an aircraft Boeing stopped producing more than two decades ago.

However, AMC has confirmed only the purchase required to expand the C-40 fleet. There is no announced programme to replace both fleets with the MAX.

Military derivatives of successful commercial aircraft are hardly unusual for Boeing. The 737 has already produced the C-40 transport and the P-8A Poseidon maritime patrol aircraft, while Boeing commercial platforms also underpin aircraft used for airborne early warning, tanking and executive transport.