Northrop Grumman MQ-8C Fire-X

The Northrop Grumman MQ-8C Fire-X is an unmanned autonomous helicopter developed by Northrop Grumman for use by the United States Armed Forces. The Fire-X is designed to provide reconnaissance, situational awareness, aerial fire support and precision targeting support for ground, air and sea forces. The MQ-8C airframe is based on the Bell 407, while the avionics and other systems are developed from those used on the MQ-8B Fire Scout. It first flew in October 2013 and is currently in testing, with production scheduled to start in March 2016.

Design and development


On 3 May 2010, Northrop announced plans to fly a Bell 407 helicopter modified with autonomous controls from the MQ-8B. Named Fire-X, it was to demonstrate an unmanned cargo resupply capability to the US Navy. The unmanned Fire-X completed its first flight at Yuma Proving Ground in Arizona on 20 December 2010. On 23 April 2012, Northrop received a $262.3 million contract from the Navy to build the newly designated MQ-8C Fire Scout; the work included two developmental aircraft and six low-rate production aircraft initially. The Navy wants 28 MQ-8Cs for naval special operations forces. In March 2013, the Navy incorporated the Rolls-Royce 250-C47E engine into the MQ-8C for a 5 percent increase in "hot and high" power, 2 percent reduced fuel consumption, 8 percent increase in rated takeoff power, and better reliability. The Bell 407-based MQ-8C has an endurance of 12 hours, a range of 150 nmi, and a payload capacity of about 318 kg; it has twice the endurance and three times the payload as the MQ-8B.

In early July 2013, Northrop Grumman delivered the first MQ-8C to the Navy. Ground testing was done to ensure that the systems worked properly and communicated with the ground control station prior to conducting the first flight. The MQ-8C shares software, avionics, payloads, and ship ancillary equipment with the MQ-8B, while the upgraded airframe provides double the endurance and three times the payload. The MQ-8C was expected to fly in early October 2013, and be deployed in late 2014. The APKWS II will be added to the C-model sometime after 2016. Initial at-sea tests were to be performed aboard the destroyer USS Jason Dunham (DDG-109) in 2014. On 24 September 2013, the MQ-8C Fire-X delivered to the Navy turned on its engines for 10 minutes in preparation for first flight. A second MQ-8C was to be delivered on 30 September. First flight was scheduled for early to mid-October, although the exact date was not determined, as such tests are often delayed by minor system problems. The MQ-8C flight test regime is to last six months.

The MQ-8C Fire Scout first flew on 31 October 2013. It flew for 7 minutes in restricted airspace using autonomous controls at Naval Base Ventura County. It flew a second time hours later that day to an altitude of 500 ft. The MQ-8C was jointly operated by Northrop Grumman and the Navy. Northrop Grumman delivered the second MQ-8C on 25 November 2013. They are under contract to build 14 helicopters. The second MQ-8C flew on 12 February 2014. The aircraft had flown 66 hours by February 2014. On 10 March 2014, the MQ-8C reached 100 flight hours. 19 C-model Fire Scouts are on order with two in flight testing; the first deployment on an LCS is scheduled for 2015. The MQ-8C began testing aboard the Jason Dunham on 16 December 2014, executing 22 landings and recoveries in less than four hours. Testing was completed on 19 December, executing 32 takeoffs and recoveries over three flights.

Northrop Grumman flew the MQ-8C demonstrator installed with their AN/ZPY-1 STARLite Radar, although there was no requirement for an MQ-8C radar at the time; the Navy began seeking information for a radar for the MQ-8C in July 2014 with surface search, synthetic aperture radar, inverse SAR, and weather mode capabilities. A request for proposals (RFP) for a radar for the MQ-8C is expected to be released in early 2015. Although the AN/ZPY-4 has been installed on some B-model Fire Scouts, the larger C-model can accommodate a larger and more powerful radar. The MQ-8C will be ready to perform surface warfare missions in 2018 and mine countermeasure missions in 2020.

The first operational MQ-8C was delivered to the US Navy in December 2014. Its final developmental flight was completed on 29 April 2015, after 450 hours completed in 327 flights. Operational testing will begin in late 2015.

Variants

 * MQ-8C Fire-X: Improved variant of the MQ-8B Fire Scout using avionics from the MQ-8B into the larger Bell 407 airframe. It has a 14 hr endurance with 600-700 lb in payload.

Operators

 * United States Navy
 * United States Navy