September 11, 2018 | International, Aerospace
The Air Force's fleet of Cold War bombers will fly longer than most people will live, allowing B-52 crews to work on planes their great-grandfathers flew.
A series of upgrades to the B-52 Stratofortress bomber could keep the remaining fleet of Cold War bombers going until 2050. The planes, built during the Kennedy Administration, are expected to receive new engines, electronics, and bomb bay upgrades to keep them viable in nuclear and conventional roles.
The B-52 strategic heavy bomber is a true survivor. It was designed to fly high over the Soviet Union carrying atomic bombs if necessary. But the B-52 is the do-it-all tool of strike warfare, taking on whatever mission is popular at the time.
B-52s were modified to drop conventional bombs during the Vietnam War, where they proved they could fly low to penetrate enemy defenses, gained the ability to drop precision-guided bombs, and swapped their nuclear bomb loads for nuclear-tipped cruise missiles. The B-52s also can carry Harpoon anti-ship missiles, lay minefields at sea, and provide close air support to troops on the ground. B-52s have even flirted with air-to-air warfare, with their tail gunners reportedly shooting down two MiG-21 fighters over Vietnam.
Of the original 102 B-52Hs built between 1961 and 1962, 76 are still flying with the Air Force's Global Strike Command and Air Force reserve. B-52s regularly fly to Europe and Asia, and in early June, two B-52s stationed on the island of Guam flew to the South China Sea in protest of Chinese territorial claims.
Now the U.S. Air Force is embarking on a series of major upgrades that could give the B-52 another 30 years of service. According to National Defense, a key improvement will be re-engining the big bomber. Each B-52 still operates eight original TF-33-103 engines. Not only are those engines generations behind the state of the art, but their age, and the difficulty to source spare parts, puts their future use in jeopardy—a problem Popular Mechanics covered last year. Rolls-Royce, Pratt & Whitney, and GE Aviation have all expressed interest in the new B-52 engine, but only Pratt and Whitney has actually chosen a potential replacement: the PW815 engine used in the Gulfstream G500 passenger jet.
The Air Force would like to replace the bomber's APQ-166 terrain following and mapping radars, which are essential for low-level flight. A bomb bay upgrade will allow the B-52 to carry JDAM satellite-guided bombs and Joint Air-to-Surface Standoff Missiles (JASSM) in its internal bay. Storing weapons internally reduces drag, increasing range. Alternately a B-52 could carry both internal and external stores. A single B-52 can carry eight JASSMs internally and twelve externally, for a total of 20 of the precision attack missiles.
Full article: https://www.popularmechanics.com/military/aviation/a23066191/b-52-bombers-fly-until-the-2050s
February 22, 2021 | International, Aerospace
Lockheed Martin is defending the value of the F-35 stealth fighter as the US Air Force (USAF) is for the second time in two years considering buying a cheaper fourth-generation fighter aircraft for its fleet recapitalization plans.
September 22, 2020 | International, Land, C4ISR
Andrew Eversden WASHINGTON — The U.S. Army is seeing improvements in anti-jam capabilities in new radios crucial to securing manned-unmanned communications at its annual Network Modernization Experiment. At NetModX '20, which runs from late July to early October at Joint Base McGuire-Dix-Lakehurst in New Jersey, the Army's Combat Capabilities Development Command's C5ISR Center — or Command, Control, Communication, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance Center — is testing the resiliency of the new radios. The effort will help the service observe how they would perform in the field as the Army looks to partner humans and machines. Initial data from the event suggests the two companies involved — Silvus and Persistent Systems — have improved their radio capabilities from last year, specifically in regard to anti-jam, according to Daniel Duvak, chief of the C5ISR Center's Radio Frequency Communications division. But one major challenge is making the radios less detectable as the Army's tactical network team starts to focus on command post survivability — or reducing the electromagnetic signature of command post communications — while not sacrificing latency and throughput. “If you want to make it less detectable, you know oftentimes you have to trade off the throughput or the range or one of those other products,” Duvak said. “So that's the piece and the real technical challenge that they're continuing to work on over the next few months. We've seen progress that they've made in those areas, but that's the piece that they're still working on.” Robert Stevens, an electronics engineer at the Radio Frequency Communications division, told C4ISRNET that the radios are an important piece of the next-generation combat vehicle. And Duvak said the Army's tactical network modernization team — made up of the Network Cross-Functional Team and Program Executive Office Command, Control, Communications-Tactical — wants to use the radios as a mid-tier radio solution. The development and fielding of new science and technology projects can take more than five years; however, the Army wants to speed that up as it seeks to modernize systems in preparation for future conflicts with near-peer adversaries. At last year's Network Modernization Experiment, the C5ISR Center tested several vendors' radios to see where commercial technology stood. Alternative contracting options, like broad agency announcements as well as cooperative research and development agreements, have proved critical to quickening radio development. Under the contracting mechanisms, vendors and the Army have more flexibility to experiment with radios and make iterative modifications as requirements change. Duvak said this is different from how the Army did business years ago, when it would award yearslong contracts but eventually receive radios that no longer met current requirements. “What we were able to do at this program was, in just about a year and a half of development time, take a couple of those products that we saw that were very promising and we were able to add and actually fund vendors to enhance those radios with those resiliency features that we were just talking about for the contested environment,” Duvak said. “Things like making them anti-jam, or more difficult for the adversary to jam, making them more difficult for the adversary to detect or intercept our communications.” Duvak said the Army wants the new radio capabilities for Capability Set '23, a collection of new tactical network tools to be fielded to soldiers in fiscal 2023. The resiliency of communications is critical as the tactical network modernization team pivots to reduce the electronic signature of the service's command post under Capability Set '23. The team is looking to increase bandwidth and reduce latency as part of that set of tools. Preliminary design review for Capability Set '23 is scheduled for April next year. https://www.c4isrnet.com/battlefield-tech/it-networks/2020/09/21/new-us-army-radios-show-anti-jam-progress-at-network-experiment/
October 15, 2024 | International, Aerospace
The service faces an "axis of upheaval," Gen. Randy George said Tuesday.