Three major players remain in the now-revised United States Navy's (USN) unmanned aerial tanker program - Boeing, Lockheed Martin, and General Atomics (with Boeing as a notable backer). Northrop Grumman abandoned the program when the Navy switched directions from the original Unmanned Carrier-Launched Airborne Surveillance and Strike (UCLASS) approach to the tanker / reconnaissance-minded MQ-25 "Stingray" design. General Atomics Aeronautical Systems, Incorporated (GA-ASI), a proven player in the UAV market and makers of the famous "Predator" product line, has its sights on the same prize as the noted industry heavyweights Boeing and Lockheed - the prize potentially worth billions in procurement as well as the expected year-over-year support commitment.
The USN is the largest sea-going fighting force anywhere in the world, second to none, and fields the globe's largest collection of aircraft carriers.
General Atomics' still-in-development "Avenger" Unmanned Combat Air Vehicle (UCAV) is set to form the basis of its Stingray proposal. As such the design shares many external similarities to the aircraft including the dorsal-mounted intake aspirating the single engine installation, outward-cranked "V-style" tailplane arrangement, and retractable tricycle undercarriage. The fuselage is well-contoured and houses pertinent support equipment such as avionics and fuel. The engine is set in the rear of the design as is the case with many other medium-to-large-sized military drone aircraft. Unlike the Avenger's pseudo blended wing-body approach, the Stingray proposal's wing mainplanes are mounted high along the fuselage sides and each unit is capped by a winglet for added stability and fuel efficiency. The fuselage has a sensor blister at the "chin" position which allows the platform to undertake basic Intelligence-Surveillance-Reconnaissance (ISR) sorties (now part of the USN requirements). Under each wing mainplane will be fitted a fuel tank to satisfy the major fuel-delivery component of the USN requirement. Beyond this, the aircraft will sport some given stealth features, feature an arrestor hook for carrier-based landings, and sport folding wings for carrier storage. This on top of the usual requisites of navy aircraft such as protection from corrosive salt spray and a reinforced undercarriage for the rigors of carrier operations.
Internally, the MQ-25A offering from General Atomics is set to be wholly autonomous in which the system will actively read directions/commands from an on-deck flight director's wand actions.
The Stingray series is expected to be regularly operated from the Nimitz- and Ford-class of supercarriers currently in the USN fleet. Each design is required to deliver around 14,000lb of fuel to manned combat aircraft via a standard drogue refueling pod with a ground-based operator still part of the refueling equation (via real-time video and communications link). The Navy hopes to free its active fleet of F/A-18 Super Hornets currently modified for the "buddy tanking" role so these platforms can be returned back to their combat-capable forms. Of course the MQ-25 will also be a prime supplier of fuel to the new Lockheed F-35 Lightning II VTOL aircraft adopted by the USN as well.
The early stages of the Stingray program will see formal selection of a design in August of 2018 and, following this, the service will receive a modest fleet of drones for active evaluations. Should the project produce the expected fruit, the USN will move to procure as many as seventy-two unmanned MQ-25A models for operations from carrier decks all over the world.
Interestingly, Boeing has thrown its weight behind the General Atomics initiative as well as funding / promoting its own unique design (detailed elsewhere on this site) - showing just how important the program is becoming for the company.
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August 2018 - The Boeing MQ-25 Stingray has been announced as the winner of the USN refueling drone project. The initial contract is for four air vehicles for testing. The USN expects the first air-worthy vehicle to be delivered in 2020 and a first-flight scheduled for 2021 - opening the path to service entry in the early part of 2024.
(OPERATORS list includes past, present, and future operators when applicable)
✓Maritime / Navy
Land-based or shipborne capability for operating over-water in various maritime-related roles while supported by allied naval surface elements.
✓Aerial Refueling (Tanker)
Dedicated or converted airframe used to deliver fuel to awaiting allied aircraft.
✓X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.
✓Unmanned Capability
Aircraft inherently designed (or later developed) with an unmanned capability to cover a variety of over-battlefield roles.
Length
41.0 ft (12.50 m)
Width/Span
66.1 ft (20.15 m)
Height
5.9 ft (1.80 m)
(Showcased structural values pertain to the General Atomics MQ-25A Stingray production variant)
Installed:
1 x Pratt & Whitney Canada PW815 turbofan engine developing 16,000lb of thrust.
(Showcased performance specifications pertain to the General Atomics MQ-25A Stingray production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
None. Mission equipment set to include 2 x drogue fuel tanks under wing mainplanes and basic ISR systems.
Supported Types
(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 2
MQ-25 "Stingray" - Base Series Designation.
MQ-25A - Expected production designation.
Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective aerial campaigns / operations / aviation periods.
Images Gallery
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Concept artwork from official General Atomics press release.
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United States (possible)
