Graham Corporation has secured two US defense contracts worth more than $43 million to supply equipment for the MK48 Mod 7 heavyweight torpedo and the country’s submarine fleet.

The New York-based manufacturer announced the awards on August 7.

The contracts cover alternators and regulators for the torpedo program and new MK19 Mod 2 air turbine pump assemblies for submarine spares, supporting the US Navy’s undersea warfare capabilities and fleet readiness.

Power systems for the MK48 torpedo

The first award exercises the fourth option year of an existing contract supporting the MK48 Mod 7 Heavyweight Torpedo program. It was awarded during Graham’s first quarter of fiscal 2027, which ended June 30, 2026.

Under the option, Graham will continue supplying alternators and regulators used within the torpedo system. Alternators generate electrical power, while regulators manage the resulting voltage and current to help onboard electronics operate reliably.

These components are particularly important in a heavyweight torpedo, where propulsion, guidance, sensing and control systems must function under demanding underwater conditions.

Reliable power management can support target acquisition and navigation while helping the weapon maintain performance throughout its mission.

The MK48 is launched from submarines and is designed to engage hostile submarines and surface ships.

Continued component orders also indicate that the US is sustaining and upgrading an established weapon as undersea competition becomes increasingly important.

Submarine pumps to arrive from 2028

Graham received the second contract during its fiscal 2027 second quarter, which ends September 30, 2026. The company will manufacture new-build MK19 Mod 2 air turbine pump assemblies for the submarine fleet’s spare-parts inventory.

Deliveries are scheduled to begin in 2028 and continue through 2030. The extended delivery period could help the Navy maintain a dependable supply of replacement hardware for submarines already in service.

Air turbine pumps convert energy from pressurized air into mechanical pumping power.

On submarines, equipment of this kind can support essential fluid-handling functions in environments where compact construction, dependable operation and tight performance tolerances are critical.

Maintaining spare assemblies also reduces the risk of a component shortage keeping a submarine out of service for longer than necessary.

The contract therefore supports not only equipment production but also maintenance planning and operational availability.

$43 million added to defense backlog

Revenue from the MK48 Mod 7 and MK19 Mod 2 awards will be recorded in Graham’s fiscal 2027 first- and second-quarter backlog. The deals extend the company’s role as a supplier of specialized technologies for US defense platforms.

“These awards reflect the continued demand we’re seeing across our defense platforms, and demonstrate the durability of our customer relationships built over years of consistent execution,” said Matthew Malone, President and CEO of Graham Corporation.

“Our mission-critical applications remain vital in helping our customers meet high-level performance requirements. We’re proud to continue supporting the MK48 and submarine programs and look forward to building on this momentum,” he added.

Beyond defense, Graham develops fluid, power, heat-transfer, vacuum and advanced mixing technologies for the space, energy and process industries.

The latest awards reinforce how those engineering capabilities are being applied to torpedo reliability, submarine maintenance and the long-term readiness of America’s undersea fleet.

Helicopters are no longer the only aircraft capable of taking off vertically. Electric motors, autonomous flight systems and lightweight materials are giving rise to machines that lift like helicopters but fly more like conventional airplanes.

Some are designed to carry passengers over congested cities, while others could transport soldiers, deliver cargo or give individuals their own personal aircraft. Here are 10 futuristic VTOL aircraft attempting to change how people and goods move through the sky.

1. Joby Aviation air taxi

Joby Aviation

Joby Aviation has developed one of the most mature electric vertical takeoff and landing aircraft in the industry. Its air taxi uses six tilting electric propellers to rise vertically before transitioning into forward flight.

The aircraft is designed to carry a pilot and four passengers at speeds of up to 200 mph, with a range of up to 100 miles. Joby reported that its aircraft had completed more than 2,600 flights and covered over 50,000 miles by December 2025.

2. Archer Midnight

Archer Midnight

Archer Aviation’s Midnight is built for short, repeated journeys across crowded cities. The aircraft has 12 electric motors and propellers, providing additional redundancy if one propulsion unit fails.

Midnight can carry four passengers and a pilot at speeds of up to 150 mph. Although its claimed range reaches 100 miles, it is optimized for consecutive journeys of around 20 to 50 miles. A piloted aircraft completed a 55-mile flight in 31 minutes in August 2025.

3. BETA ALIA VTOL

Wikimedia Commons

BETA Technologies has taken a relatively straightforward approach with its ALIA VTOL. Four horizontal propellers provide vertical lift, while a separate propeller at the rear drives the aircraft during forward flight.

ALIA is designed to carry five passengers or around 200 cubic feet of cargo. It has a listed maximum speed of 153 knots, equivalent to approximately 176 mph.

BETA is targeting passenger transport, medical missions, logistics and military operations with the platform.

4. AutoFlight Prosperity I

AutoFlight

China’s AutoFlight is developing Prosperity I for longer passenger journeys between cities and transport hubs. Its unusual propulsion system includes 10 lifting propellers and three propellers for forward flight.

The aircraft has five seats, including one for the pilot, and a typical payload capacity of 350 kilograms. AutoFlight claims a range exceeding 250 kilometres and a cruise speed above 200 kilometres per hour.

The passenger aircraft is currently progressing through airworthiness certification.

5. Vertical Aerospace Valo

Valo is the latest electric aircraft being developed by Britain’s Vertical Aerospace. It uses eight tilt-shift propellers and a carbon-composite airframe to carry four passengers and one pilot.

The all-electric aircraft is designed to travel up to 100 miles at speeds reaching 150 mph. Vertical is also planning a hybrid-electric version with a significantly more ambitious range of up to 1,000 miles.

The company is targeting entry into service after regulatory approval, currently expected in 2028.

6. Horizon Cavorite X7

Hysky

Instead of placing its lift propellers outside the aircraft, Horizon Aircraft has hidden them inside the wings. Panels open to expose 12 electric fans during vertical takeoff and close once the Cavorite X7 transitions into forward flight.

The Canadian hybrid-electric aircraft is being developed to carry six passengers and one pilot. Horizon is targeting a range of approximately 500 miles and a maximum speed of around 280 mph.

Its proposed missions include regional transport, defence and emergency response.

7. Jetson ONE

Jetson ONE

The Jetson ONE resembles a cross between an open-wheel racing car and an oversized drone. Its lightweight aluminium-and-carbon-fibre frame carries a single pilot above eight electrically powered propellers.

The aircraft offers approximately 20 minutes of flight and has a software-limited maximum speed of 63 mph.

It is controlled using a four-axis joystick and includes automatic landing, motor redundancy and a ballistic parachute. Unlike many proposed personal eVTOLs, early Jetson ONE aircraft have already reached customers.

8. ARIDGE Land Aircraft Carrier

Aridge

ARIDGE’s Land Aircraft Carrier approaches the flying-car problem by separating driving and flying. The system consists of a six-wheeled ground vehicle carrying a detachable two-seat electric aircraft inside its rear compartment.

Once the vehicle reaches a suitable location, the aerial module can be released and prepared for vertical flight. This modular architecture avoids forcing one machine to operate effectively both on public roads and in the air.

9. Sikorsky Nomad

Lockheed Martin

Sikorsky’s Nomad is a family of autonomous aircraft built around a rotor-blown-wing design. Two large propellers generate airflow over the wing, allowing the aircraft to hover before transitioning into efficient horizontal flight.

A 10.3-foot-wing prototype completed more than 40 takeoffs and landings, including 30 transitions between helicopter and airplane modes.

The larger Nomad aircraft could eventually perform reconnaissance, light-attack and contested-logistics missions without putting a crew onboard.

10. Bell MV-75 Cheyenne II

Bell MV

Bell’s MV-75 Cheyenne II is being developed as the U.S. Army’s next-generation long-range assault aircraft. Derived from the V-280 Valor demonstrator, it uses tilting rotors to combine helicopter-like vertical flight with turboprop-like speed.

The Army expects the MV-75 to fly more than twice as far and twice as fast as parts of its current helicopter fleet. It could eventually conduct air assault, medical evacuation, resupply and disaster-relief missions while replacing the UH-60 Black Hawk in certain roles.

Conclusion

These aircraft show there is no single solution to the vertical-flight problem. Companies are experimenting with tilting propellers, dedicated lift rotors, concealed fans, hybrid engines and autonomous flight systems.

However, flying prototypes are only part of the challenge. Certification, infrastructure, battery life, noise and operating costs will ultimately decide which of these futuristic VTOL aircraft become everyday machines—and which remain captivating visions of aviation’s future.