Category Archives: Fighters

Environment Simulator

Preparing the F-35 Lightning II, the U.S. Navy’s most advanced fighter, for missions in today’s complex electromagnetic spectrum environment requires an equally advanced test environment. Northrop Grumman’s multispectral testing solution recreates the most accurate mission-like conditions in the laboratory and on the range. Recently, Naval Air Warfare Center Weapons Division (NAWCWD) Point Mugu took delivery of the most sophisticated test environment the company has ever created.

The CEESIM, SMS and SCS systems delivered to the U.S. Navy for the F-35 Lightning II provide RF simulation, measurement and synchronization of multiple, simultaneous emitters to faithfully simulate true-to-war conditions
The CEESIM, SMS and SCS systems delivered to the U.S. Navy for the F-35 Lightning II provide RF simulation, measurement and synchronization of multiple, simultaneous emitters to faithfully simulate true-to-war conditions

The environment consists of Northrop Grumman’s Combat Electromagnetic Environment Simulator (CEESIM), Signal Measurement System (SMS) and other stimulators, all under control of the Synchronizer Controller System (SCS).

«Keeping the F-35’s systems ready requires a fully integrated test environment like we have developed with CEESIM, SMS and SCS», said Joe Downie, director, land and avionics C4ISR division, Northrop Grumman Mission Systems. «These systems work together to provide the environment complexity and density, measurement and analysis capability, and test control capability necessary to evaluate the F-35 in a realistic mission scenario».

At the center of the environment is the CEESIM, which simulates multiple, simultaneous Radio Frequency (RF) emitters as well as static and dynamic platform attributes to faithfully model true-to-war conditions. CEESIM’s Advanced Pulse Generation high speed direct digital synthesizer technology is used to generate realistic electronic warfare mission scenarios.

The SMS provides wide bandwidth signal measurement, recording and analysis capability which is used to validate the test environment and evaluate the system under test performance.

The SCS provides the tools to program an integrated multispectral test scenario, including threat radars, communications signals, radar and Electro-Optical/InfraRed (EO/IR) signatures. The SCS also manages the execution of the scenario by all of the stimulators to ensure a coherent multispectral test environment.

Operational flights

The Marine Corps’ F/A-18 Hornet squadrons recently flew with the Advanced Precision Kill Weapon System (APKWS), a highly accurate 2.75-inch/70-mm rocket that provides air-to-ground weapon support.

The Advanced Precision Kill Weapon System (APKWS) is loaded onto an F/A-18 to prepare for the weapon's initial deployment with the aircraft in March 2018 (U.S. Navy photo)
The Advanced Precision Kill Weapon System (APKWS) is loaded onto an F/A-18 to prepare for the weapon’s initial deployment with the aircraft in March 2018 (U.S. Navy photo)

APKWS allows the F/A-18A-D Hornet to maintain a forward-firing, moving-target capability while increasing available ordnance per aircraft and provides a more efficient weapons match versus target sets currently seen in theater.

«This is an incredible weapons system that our most experienced pilots down to the newest pilots can effectively employ», said Lieutenant Colonel Jon «TAG» Curtis, commanding officer of one of the F/A-18 Hornet squadrons.

The low-cost 2.75-inch/70-mm rocket has a laser guidance kit that gives it precision-kill capability. It has ability to destroy targets while limiting collateral damage in close combat.

Curtis’ squadron received the new weapon system in February and completed ground training and in-flight training to ensure the weapon worked effectively. All of the weapons fired during training directly impacted the final aim point.

«The PMA-242 APKWS and PMA-265 F/A-18 Hornet joint Integrated Product Team (IPT), with key stakeholders (Naval Air Warfare Center Aircraft and Weapons Divisions, VX-31/VX-9, Marine Corps headquarters and BAE Systems), rapidly developed and executed an integration plan, cutting normal integration time by nine months and saving $4.9 million of allocated funds», said Lieutenant Commander Daniel Ropp, APKWS deputy program manager

The team established a land-based integration program to expedite fielding with a limited employment envelope using a tailored approach in engineering, logistics, and contracting to deliver units to theater as quickly as possible. This effort supported on time training and operational employment of APKWS for the deploying squadron in Operation Inherent Resolve (OIR), exemplifying «Speed to the Fleet», he said.

The F/A-18 Hornet is the second U.S. Navy fixed-wing platform to carry APKWS. It is also employed from the AV-8B Harrier II as well as rotary-wing platforms including the UH-1Y Venom, AH-1Z Viper and MH-60S/R Seahawk. The U.S. Navy and Marine Corps have fired thousands of combined fixed- and rotary-wing shots and hundreds in combat scenarios.

Flight Test Program

The F-35 program has accomplished the final developmental test flight of the System Development and Demonstration (SDD) phase of the program.

F-35 Completes Most Comprehensive Flight Test Program in Aviation History
F-35 Completes Most Comprehensive Flight Test Program in Aviation History

«Completing F-35 SDD flight test is the culmination of years of hard work and dedication from the joint government and industry team», said Vice Adm. Mat Winter, F-35 Program Executive Officer. «Since the first flight of AA-1 in 2006, the developmental flight test program has operated for more than 11 years mishap-free, conducting more than 9,200 sorties, accumulating over 17,000 flight hours, and executing more than 65,000 test points to verify the design, durability, software, sensors, weapons capability and performance for all three F-35 variants. Congratulations to our F-35 Test Team and the broader F-35 Enterprise for delivering this new powerful and decisive capability to the warfighter».

The final SDD flight occurred 11 April 2018 at Naval Air Station Patuxent River, Maryland when Navy test aircraft CF-2 completed a mission to collect loads data while carrying external 2,000-pound/907-kg GBU-31 Joint Direct Attack Munitions (JDAM) and AIM-9X Sidewinder heat-seeking missiles.

From flight sciences to mission systems testing, the critical work completed by F-35 test teams cleared the way for the Block 3F capability to be delivered to the operational warfighter. More than a thousand SDD flight test engineers, maintainers, pilots and support personnel took the three variants of the F-35 to their full flight envelope to test aircraft performance and flying qualities. The test team conducted 6 at-sea detachments and performed more than 1,500 vertical landing tests on the F-35B variant. The developmental flight test team completed 183 Weapon Separation Tests; 46 Weapons Delivery Accuracy tests; 33 Mission Effectiveness tests, which included numerous multi-ship missions of up to eight F-35s against advanced threats.

«The F-35 flight test program represents the most comprehensive, rigorous and the safest developmental flight test program in aviation history», said Greg Ulmer, Lockheed Martin’s vice president and general manager of the F-35 program. «The joint government and industry team demonstrated exceptional collaboration and expertise, and the results have given the men and women who fly the F-35 great confidence in its transformational capability».

Developmental flight test is a key component of the F-35 program’s SDD phase, which will formally be completed following an Operational Test and Evaluation and a Department of Defense decision to go into full-rate aircraft production.

While SDD required flight test is now complete, F-35 flight testing continues in support of phased capability improvements and modernization of the F-35 air system. This effort is part of the Joint Program Office’s Continuous Capability Development and Delivery (C2D2) framework, which will provide timely, affordable incremental warfighting capability improvements to maintain joint air dominance against evolving threats to the United States and its allies.

With stealth technology, advanced sensors, weapons capacity and range, the F-35 is the most lethal, survivable and connected fighter aircraft ever built. More than a fighter jet, the F-35’s ability to collect, analyze and share data is a powerful force multiplier that enhances all airborne, surface and ground-based assets in the battlespace and enables men and women in uniform to execute their mission and return home safe.