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| KQ-X | |
|---|---|
| A Northrop Grumman RQ-4B similar to that used in the KQ-X aerial refuelling trials. | |
| Project for | Autonomous aerial refueling |
| Issued by | DARPA |
| Value | $33 million |
| Date initiated | July 1, 2010 |
| Date concluded | September 2012 |
KQ-X was a $33 million DARPA program awarded to Northrop Grumman on July 1, 2010. KQ-X investigated and developed autonomous aerial refueling techniques using two NASAGlobal Hawkhigh-altitude long endurance (HALE) unmanned aerial vehicles (UAVs).[1]
Northrop Grumman retrofitted two of the HALE UAVs so that one aircraft can pump fuel into the other while in flight via a hose-and-drogue refueling system. Several aspects of the KQ-X program were considered revolutionary: not only would the aerial refueling be autonomous, but since Global Hawks are classified as HALE UAVs, the refueling tests would occur at an altitude higher than that typically performed using manned aircraft. The tests would also be the first time that HALE UAVs have been flown in formation.[2]
Engineering work was completed at the Northrop Grumman Unmanned Systems Development Center in Rancho Bernardo, California. Pilots from NASA, NOAA, and Northrop Grumman flew the Global Hawks from the NASA Armstrong Flight Research Center at Edwards Air Force Base, also in California. Sargent Fletcher Inc. and Sierra Nevada Corporation were major KQ-X subcontractors.[2]
Flight demonstrations occurred from January 11, 2012 to May 30. In these demonstrations, the aircraft extended and retracted the refueling hose, demonstrated precision control in formation with manual and automated breakaway maneuvers, flew in formation as close as 30 ft (9.1 m), and autonomously flew in close formation for over 2.5 hours under autonomous control within 100 ft (30 m) (one wingspan) of each other.[3] In a departure from traditional refueling methods, the tanker is fitted with a refueling probe on the nose, which trails behind the receiving aircraft equipped with a hose-drum unit under the fuselage, plugging into the drogue and pushing the fuel upwards. Autonomous aerial refueling was expected to extend the Global Hawk's endurance from 30–35 hours to 120–125 hours, set by payload reliability more than engine oil consumption.[4]
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The KQ-X program ended in September 2012 without airborne fuel transfer occurring between the two UAVs. The two Global Hawks used in demonstrations were owned by NASA and jointly operated with Northrop Grumman. NASA required the two planes for atmospheric science missions in June 2012 after flight control testing and had to de-modify and reconfigure them to perform hurricane tracking flights after that. Further tests could have been performed, but NASA halted the use of the Global Hawks that June after a Navy operated version crashed. The May 30 flight was the ninth and final test of the program, with the two aircraft flying close at 44,800 ft (13,700 m) to measure aerodynamic and control interactions. Data from the flights were put into virtual simulations that concluded 60 percent of autonomous refueling attempts would result in contact between the refueling probe and receiver drogue. Further unmanned refueling tests were carried out under the Unmanned Combat Air System Demonstrator program with software from the Northrop Grumman X-47B UAV.[5]
See also[edit]
References[edit]
- ^'Photo Release -- DARPA Tasks Northrop Grumman to Demonstrate Autonomous Aerial Refueling'. Archived from the original on 2010-09-07. Retrieved 2010-07-12.
- ^ ab'Northrop Grumman to Demonstrate NASA KQ-X Global Hawk Autonomous Aerial Refueling.' Guide to Military Equipment and Civil Aviation. N.p., 1 July 2010. Web. 13 July 2010.
- ^Global Hawks move closer to unmanned refueling - SuasNews.com, October 9, 2012
- ^KQ-X - Yes, That IS How They Do It- Aviationweek.com, 22 August 2012 Archived 4 August 2017 at the Wayback Machine
- ^Hurricane Casualty -- KQ-X Unmanned Refueling Demo- Aviationweek.com, 15 October 2012 Archived 12 December 2013 at the Wayback Machine
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Interestingly, there are some foreign investors who are waiting for the market to bottom out so they can take full advantage of the bear. Well, Africans only slaughter when the visitors come, so let them. But make sure you are in when the meat is being distributed.Brief Company Profile
Market Segment: Main Investment Segment
Sector: Commercial and Services
Kenya Airways Limited operates in the aviation industry. The Company is engaged in providing international, regional and domestic carriage of passengers and cargo by air, the provision of ground handling services to other airlines and the handling of import and export cargo. The Company's segments include Passengers, Freight and mail Handling and Others. It operates domestic flights and flies to around 60 destinations in Africa, the Middle East, Asia and Europe. It has around 50 aircrafts, either owned or on operating leases. These consist of around seven Boeing 777 wide body jets, six Boeing 787, five Boeing 767 wide body jets, 14 Boeing 737 narrow body jets, 18 Embraer regional jets and two Boeing 737 freighters. The Company operates KQ Holidays, a leisure unit, which caters to the leisure traveler for family holidays, weddings and honeymoons, as well as the business traveler for all meetings and conference needs with additional incentive travel.
Shoes Company Canada
The Company is currently in a turn-around face focusing on cost management, operational efficiency and productivity of human resources. The company is seeking to increase the frequency of its flights to Liberia and Vietnam expanding to its portfolio of destinations. The turn around strategy also included a plane disposal initiative that the company expected to boost cost savings going forward. This disposal intiative is expected to rationalise excess capacity through sub-leases and outright sales.
