Joint Unmanned Combat Air Systems
"We're going to demonstrate a set of capabilities so the services can understand this thing, what it can do and what it can't do", said Michael Francis, director of J-UCAS.
"The operating system is the part that's hardest to deal with", he told National Defense. Unlike traditional aircraft programs, J-UCAS emphasizes the software and the network, rather than the vehicles. "The platforms are just nodes in a network", Francis said.
Objectives
The J-UCAS program combines the efforts that were previously conducted under the DARPA/Air Force UCAS program and the DARPA/Navy UCAV-N program. Each program had its specific targets and specifications.
For the J-UCAS program, DARPA combined several important objectives, the J-UCAS demonstrators must, as a minimum, have an operational radius of 1,300 miles, a two hour loiter capability at a 1,000 mile range and carry at least 4,500 pounds of weapons and equipment.
Furthermore, both vehicles will use the same ground control equipment. Making it possible that a Boeing ground station will control a Northrop Grumman aircraft.
If the two aircraft are flying autonomously, unless you have a scorecard, you won't be able to tell which is which, according to Francis.
Development phases
Spiral 0
Existing individual UCAS designs (X-47A UCAV-N & X-45A)
More advanced demonstrators are now under development as part of the J-UCAS program: the X-45C and X-47B are the next step in the evolution of an affordable operational J-UCAS.
The larger air vehicles will more closely represent the envisioned operational systems, to include two full weapons bays and incorporation of LO technologies.
The Spiral 1, development phase under the J-UCAS program
Includes the design of the improved demonstrator air vehicles, X-45C and the X-47B.
The objective of Spiral 1 effort is to design, develop, integrate, and demonstrate the technologies, processes, and system attributes (TPSAs) pertaining to the J-UCAS Operational System.
Under Spiral 1, two air vehicles will begin flight test in 2006 and will commence catapult and arrested landing testing in the fall of 2006.
Operational Assessment Phase (Spiral 2) - FY07-09
This phase will develop and demonstrate greater operational utility, which will support go-ahead for development (Milestone B) of the J-UCAS Objective System (J-UOS) in 2009.
Common Systems and Technologies
A very important part of J-UCAS is a common technologies program - developing standards and common components for sensor, communications and computer systems.
The idea is that Navy and USAF UCAVs should work seamlessly together, with a common upgrade path, and that new UCAVs - perhaps a highly agile aircraft or a supersonic long-range vehicle - can be integrated into the same system.
Current Developments
Due to budget cuts and priority changes, the J-UCAS program has been cancelled. The X-47 program is now managed by the Navy only, and the X-45 program for the Army has been terminated. Boeing may still modify the X-45 so it can participate in the Navy's program, and compete with the X-47.
Navy's UCAS-D Program
After the termination of the J-UCAS program, the Navy established the Unmanned Combat Air System Demonstration (UCAS-D) program.
The purpose of this UCAS-D Program effort is to conduct a Carrier Demonstration (CV Demo) of a low-observable planform unmanned combat air system. The CV Demo effort will be structured to mature critical technologies and reduce the risk of carrier integration of a UCAS while providing the information necessary to support a potential follow-on acquisition milestone decision.
The Government anticipates the award of a CV Demo competitive contract no later than the second quarter of FY07. The expected period of performance of the CV Demo effort is from the second quarter of FY07 through the fourth quarter of FY11.
The scope of the UCAS-D effort includes the design, development and demonstration of a UCAS-D System (UCDS). The UCDS technology demonstration objectives shall include, but not limited to, the following:
- Carrier Control Area Operations
- Launch Performance
- Arrested Landing Performance Including Approach, Waveoff and Bolter
- Deck Operations
- Supportability
- Mission Control Segment (MCS) CV Integration
- UCAS interface to Primary Flight Control (PriFly), Landing Signal Officer (LSO), and Carrier Air Traffic Control Center (CATCC)
For more information about the current developments of the X-45 and X-47 please visit their factsheets:
Read the full article...
Feb. 26th, 2007 | US Navy opens UCAS-D contest
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Apr. 24th, 2006 | Input: RFP For Navy UAS Is Expected In Autumn
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Apr. 21st, 2006 | NAVAIR UAV Chief Says New Strategy Needed For Joint Development
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Apr. 4th, 2006 | US finally looks beyond the B-2 for long-range strike capability
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- USAF to spend $2bn on next unmanned bomber
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- GKN Wins Key X-47B contract - But Will J-UCAS Survive?
- Pentagon Accelerates Future Bomber Plans - J-UCAS Cancelled
- J-UCAS program to be cancelled?!
- The Remote Controlled Military and the Future of Warfare
- Northrop Grumman's X-47B J-UCAS Team Simulates Control of Four Unmanned Surveillance Attack Aircraft within Aircraft Carrier Airspace
- Boeing's look at the future of war
- Competing Demands on Defense Budget Produce
- Revolution or curiosity? UCAVs wait for a mission statement
- J-UCAS Research program restructured
J-UCAS Program Videos | 3 Videos Available!
First 5 videos, click to go to the J-UCAS Program video gallery:
Sources & Recommended Websites:
- NASA X-Press press release
- NationalDefenseMagazine Article
- Landings.com X-47 Article
- AviationWeek J-UCAS Article
- DARPA.mil Fact Sheet
- UCAS-D Statement of Objectives (SOO) (Draft version)
This page was last updated on: 2006-08-23

