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Phantom Ray

Boeing Integrated Defense Systems · Digital Age (2010–present)

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The Boeing Phantom Ray was an American unmanned combat air vehicle (UCAV) technology demonstrator — Boeing Phantom Works's flying-wing stealth UCAV + a direct competitor to Northrop Grumman's X-47B. Boeing developed the Phantom Ray in 2007-2011; first flight 27 April 2011 at NASA Dryden Flight Research Center. Only 1 Phantom Ray was built. The aircraft completed ~3 test flights through 2011 before the programme was self-funded by Boeing without USAF or DARPA contract. The Phantom Ray was retired in 2014 without further development.

The Phantom Ray was a single-engine flying-wing UCAV. Length 11 m, wingspan 15 m, MTOW 16,500 kg, payload 2,000 kg of internal weapons. Propulsion: 1 × General Electric F404-GE-102D turbofan (17,700 lbf — same engine as F/A-18A/B Hornet). Maximum speed Mach 0.85, service ceiling 12,200 m. The aircraft was based on the cancelled X-45C design (Boeing's earlier UCAV from the J-UCAS competition that lost to Northrop Grumman's X-47A in 2003). Boeing inherited the X-45C airframe + completed it as a privately-funded flying demonstrator — partly to maintain Boeing's UCAV-design expertise + partly as a marketing asset to attract future US Navy / USAF UCAV contracts.

Phantom Ray flight-testing 2011 successfully demonstrated low-observable flying-wing UCAV operations + Boeing's competence in this class. However, the aircraft was developed without a specific US military contract + no follow-on programme materialised. The Phantom Ray contributed know-how to subsequent Boeing programmes including the MQ-25 Stingray (won 2018, in service from 2025) + the (privately-rumoured) classified Boeing UCAV programmes. The aircraft is preserved at Boeing's Phantom Works facility + occasionally displayed at airshow events. The Phantom Ray is studied as an example of Boeing's mid-2000s strategy of self-funding UCAV development to maintain expertise in a class where Northrop Grumman + Lockheed Martin had won the principal Pentagon contracts. The aircraft demonstrated the company's continued UCAV know-how..

For Kids — a shorter, friendlier version

The Boeing Phantom Ray was a stealthy robot plane shaped like a flying wing. It had no pilot inside and was meant to test new ideas for combat drones. The plane first flew in 2011 from a NASA airfield in California.

The Phantom Ray was a flying wing with no tail and no sharp straight edges that would show up on enemy radar. The plane was about as long as a big school bus. It had one big engine in the middle, the same kind used in F-18 fighter jets.

Boeing built only one Phantom Ray, and it made just three test flights. The whole project was paid for by Boeing itself, not the Air Force or NASA. After 2011, no one ordered more, and Boeing retired the drone in 2014.

Even though the Phantom Ray was short-lived, it taught Boeing a lot about stealth drones. The plane could fly almost as fast as the speed of sound. Its top speed was around 650 mph. Newer Boeing drones, like the MQ-25 air tanker and the MQ-28 Ghost Bat, used ideas first tested on the Phantom Ray.

Fun Facts

The Phantom Ray was a stealth drone shaped like a flying wing.
It had no pilot inside and no tail on its body.
Boeing paid for the whole project itself, without Air Force or NASA money.
Only one Phantom Ray was ever built.
The drone made just three test flights in 2011 before Boeing retired it.
Newer Boeing drones like the MQ-25 and MQ-28 used ideas first tested on the Phantom Ray.

Kids’ Questions

Why did the Phantom Ray only fly three times?

Boeing built the Phantom Ray to show off what it could do, hoping the Air Force or Navy would buy more. No one ordered any, so Boeing stopped flying it in 2011 and retired the plane in 2014.

How does a drone fly without a pilot?

The Phantom Ray was controlled by a computer on board and by people on the ground over a radio link. The computer could fly the plane on its own and even land it safely if the radio link broke.

Variants

Phantom Ray (single demonstrator): 1 aircraft. 3 flights 2011. Retired 2014.

Notable Operators

Boeing Phantom Works (2011-2014): Self-funded demonstrator. No military operator.

Frequently Asked Questions

Why did Boeing self-fund the Phantom Ray?

Boeing's J-UCAS loss to Northrop Grumman in 2003 + cancellation of the X-46 left Boeing without a current UCAV contract — a serious gap for a major defence prime. Three business reasons motivated self-funded Phantom Ray development: (1) Skills maintenance — Boeing wanted to keep its UCAV engineering team employed + the design knowledge current; without an active flight programme, the skills would erode as engineers retired or moved to other programmes, (2) Marketing — flying the Phantom Ray demonstrated Boeing's UCAV competence to potential customers (US Navy MQ-25, classified USAF UCAV programmes), supporting future bid competitions, (3) Risk-reduction — building + flying a real UCAV airframe gives Boeing real flight-test data + design lessons that shaped subsequent bids; pure paper studies cannot match flight-test learning. Phantom Ray ultimately succeeded in its business objectives — Boeing won the MQ-25 Stingray contract in 2018, with significant Phantom Ray heritage in the MQ-25 airframe + control software.

Sources

Wikipedia — Boeing Phantom Ray