April 23, 2024 | International, Land
June 13, 2019 | International, Security, Other Defence
What’s so sweet about sugar cube-sized robots?
If there is anything the future is lacking, it's robots the size of Chiclets. Draper, working under a grant from the Defense Advanced Research Projects Agency, is creating centimeter-sized robots, for future use in rescue work. The project is named “SHort-Range Independent Microrobotic Platforms,” or “SHRIMP” for short.
And short is the nature of the game. SHRIMP is based on the 4 cm long, 1.5 g Harvard Ambulatory MicroRobot (HAMR), and wants to shrink it down to a single cubic centimeter. That will require microelectromechanical systems, 3D printing, piezoelectric actuators and, this is crucial, low-power sensors. Once all of that is in place, Draper claims the microbot will be able to jump, sense, navigate and control itself. The design will rely on feet inspired by living creatures to give it extra friction on rough and vertical terrain, and inertial measurement to detect where it is on the ground.
“The microrobotic platform capabilities enabled by SHRIMP will provide the DoD with significantly more access and capability to operate in small spaces that are practically inaccessible to today's state-of-the-art robotic platforms,” declared DARPA in the proposer's day note. “Such capability will have impact in search and rescue, disaster relief, infrastructure inspection, and equipment maintenance, among other operations.”
The exact “how” of what these robots will do in disaster relief, inspection, maintenance or other operations is yet to be determined, and will largely hinge on the sensors that can be fit to the platform. The most useful thing a small robot can do is get into a space and send information back to humans about that space, but that's hardly the only metric to evaluate the platform.
As part of the SHRIMP program, DARPA will have the robot designs compete through a series of events modeled after the Olympics. These include high jump, long jump, weightlifting, shot put, tug of war, rock piling, steeplechase, biathlon, vertical ascent — all ways to find out what useful tasks tiny robots can do.
There's a world of speculation between a dime-sized robot that can pile rocks and a useful military tool, but the fact that DARPA is invested in the technology as a platform suggests that, should the technology get there, the design will have some unexpected utility. In the meantime, DARPA's interest suggests there's good odds on a future market for sensors designed for dice-sized robots.
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December 3, 2020 | International, Aerospace
Italy lays out plans to buy up to eight new sensor-loaded Gulfstreams
By: Tom Kington ROME – Italy is planning to buy up to eight new Gulfstream signals intelligence aircraft and build a maintenance hub for similar aircraft operated by other nations around the Mediterranean. The plans, which were outlined in documents supplied to the Italian parliament, would reinforce Italy's signals intelligence capability as the Mediterranean becomes a flashpoint for regional tensions with neighbors like Turkey and Egypt tussling over the future of lawless Libya. The Italian acquisition was first mentioned in this year's budget document, released in October, which cited the need for ‘multi-mission, multi-sensor' Gulfstream G-550 jets and listed an outlay of 1.23 billion euros. An illustration of the aircraft in the document resembled Israel's ‘Shavit' Signals Intelligence Gulfstream, while the required capabilities listed included command and control, “electronic superiority” and “electronic protection of forces.” Now, the government has sent parliament a second document giving more details of the plan ahead of a vote by the parliamentary defense commission on the purchase. The document calls for the purchase of two aircraft which have already been converted for Sigint missions and equipped with the required systems before the purchase of a further six G-550 jets ready for subsequent conversion. Analysts have suggested the need to buy the unconverted aircraft quickly is due to the Gulftstream G550 going out of production. The aircraft would be based at the Italian Air Force's Pratica di Mare base south of Rome, which is already home to the two Gulfstream 550 Conformal Airborne Early Warning aircraft Italy purchased from Israel's IAI in 2012. With up to 10 G-550s in its fleet, Italy would build up a maintenance operation which would not only serve its own aircraft but be able to “offer services to the Gulfstream fleet operating in Europe and the Middle East, with about 200 jobs created,” the document stated. No indication was given about which company would be contracted to supply the two converted jets or carry out the conversion work on the other six, but the document stated that “given the complexity” of the program, a non-Italian contractor would be brought in. National offset work would be sought the document stated. Funding for the buy is due to kick off next year and will stretch out to 2056 stated the document, which has been seen by Defense News. https://www.defensenews.com/global/europe/2020/12/02/italy-lays-out-plans-to-buy-up-to-eight-new-sensor-loaded-gulfstreams
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November 4, 2019 | International, Aerospace
USAF Sees Five-Year Window To Invent A New Fighter Aircraft Industry
By Steve Trimble and Lee Hudson The U.S. Air Force's vision to rapidly produce multiple fleets of advanced fighters the way Apple makes iPhones begins with an important change in plans for the secretive Next-Generation Air Dominance (NGAD) program. For three years, the Air Force analyzed how to replace the Lockheed Martin F-22 by 2030. The original plan—defined as the Penetrating Counter-Air capability in the Air Superiority Flight Plan released in 2017—called for developing a conventional replacement for the F-22, with a next-generation F-X fighter featuring a dazzling array of new technologies, ranging from adaptive cycle propulsion to advanced weapons and new sensors. As an extended, two-year-long analysis of alternatives neared a conclusion in mid-2018, the Air Force decided to shift to a new approach. The new strategy led Air Force leaders to drain about half of the $13.2 billion budget previously allocated to the NGAD program through fiscal 2024 in the Defense Department's five-year spending plan sent to Congress in March. Instead of launching full development of the F-X within that five-year window, the Air Force is developing a radical new aircraft design process—even as spending continues on deliveries of Lockheed F-35As, Boeing F-15EXs and a host of fighter upgrade programs. “We're at a good point to attempt something new because we have hot production lines for fifth [generation fighters]. [And] fourth-gen fighters [are] going through major multibillion dollar modernizations,” says Will Roper, the assistant secretary of the U.S. Air Force for acquisition, technology and logistics. “So it's a good time to try something new for a five-year window and see if we can create a new way to build airplanes for us that [is] between the building of one or two X-planes and the building of 1,000 units in a major defense acquisition program,” Roper, who is leading the new NGAD strategy, tells Aviation Week in an interview. Roper's comments on the sidelines of Aviation Week's DefenseChain Conference on Oct. 22, help clarify the dramatic shifts within the classified NGAD program over the last year. The U.S. Air Force essentially has delayed F-X development beyond the five-year spending plan to provide a window of time to invent a new business model for the combat aircraft industry, one ideally suited for a new era of air warfare with peer adversaries. The initiative will be supported by the new Program Executive Office for Advanced Aircraft that was established on Oct. 2. The office will be led by Col. Dale White, formerly the senior program director for the Northrop Grumman B-21 bomber development program at the Rapid Capabilities Office. Roper's vision for NGAD calls for a sharp break from the conventional acquisition approach adopted for the B-21, with a single prime contractor responsible for the full aircraft lifecycle, including at least a 10- to 15-year period between an initial contract award and delivering an operational capability. To Roper, the ideal model for NGAD is not another Western fighter program, but rather a consumer electronic device. Apple's customers buy an iPhone model that is designed to become obsolete within a few years, and replace it with a more advanced device, he says. The equivalent in the fighter business are aircraft designed to last perhaps 3,500 flight hours, which the U.S. Air Force buys in batches of hundreds and replaces in intervals of 10 years or less. “We want to retire airplanes when the next one is ready to be brought out—very similar to the iPhone model. So there's no reason to keep that old iPhone once you have the new one,” Roper says. Over the next five years, the Air Force wants to define the digital engineering-based approach to the hardware and common operating system approach to the software for the NGAD aircraft family. The goal is to attract new companies besides traditional defense firms to be involved in production, along with the specialized design units of the prime contractors such as Lockheed's Skunk Works, Boeing's Phantom Works and Northrop Grumman's Scaled Composites. “I could imagine companies that could build a few airplanes per month eventually breaking in and wanting to do it because there's an opportunity to do it frequently. And let's face it, design and cutting-edge airplanes [are] just wicked cool,” Roper says. https://aviationweek.com/defense/usaf-sees-five-year-window-invent-new-fighter-aircraft-industry