13 décembre 2023 | International, Terrestre, C4ISR
Robots in the ranks: Army integrating robots in two platoons
A platoon at Fort Moore, Georgia and another at the National Training Center, Fort Irwin, California, lead experiments.
3 janvier 2019 | International, Aérospatial
Army's Decision On Huge Helicopter Engine Program Will Impact GE, Honeywell, United Technologies
Sometime in the very near future, probably this month, the U.S. Army will announce the winner of a competition to develop a new engine for most of the service's helicopters. Called the Improved Turbine Engine Program (ITEP), it is a multibillion-dollar effort that has often been described as the Army's top aviation modernization priority.
It isn't hard to see why. The weight of Army light and medium helicopters has been growing by 70-100 pounds per year since they debuted in the last century as new equipment, munitions and armor were added. As a result, both the Black Hawk utility helicopter and the Apache attack helicopter are under-powered when operating in “high-hot” conditions, meaning above 6,000 feet in temperatures of 95 degrees or greater.
Such conditions are common in places like the Persian Gulf, and pose a challenge to conducting missions successfully. In 2006, the Army launched an effort to develop an engine that could provide 50% more power than the existing General Electric T700 engine (3,000 versus 2,000 shaft horsepower), while reducing fuel consumption by 25% and extending the life of the engine 20%.
That in itself was a tall order, but the new engine also had to fit into thousands of fielded helicopters with minimal modifications, and it couldn't weigh more than 500 pounds (the current engine weighs 456 pounds). The Army also wanted each engine to cost much less than the T700–not just in the cost of manufacturing the new engines, but in the cost of maintaining them across a multi-decade service life.
Given these very demanding requirements, and a dearth of money for modernization during the Obama years, it isn't surprising that a dozen years passed before the Army felt it was in a position to pick a design that met all the service's needs. But now it is. The choice is between a successor to the T700 built by General Electric Aviation, and a competing design offered by a joint venture of Honeywell and Pratt & Whitney (a unit of United Technologies, and contributor to my think tank). The decision has probably already been made, and simply awaits formal announcement later this month.
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20 avril 2021 | International, Terrestre
US Army picks 5 innovators to help increase its howitzer firing rate
The Army has picked five innovative small businesses to help improve the rate of fire in artillery systems as it continues to work on an internally funded and developed autoloader for its future Extended Range Cannon Artillery system.
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28 janvier 2019 | International, Aérospatial
If the money is there, new and improved F-15s could be coming soon to the Air Force
By: Jeff Martin IN THE AIR OVER KENTUCKY — The U.S. Air Force could buy a new version of the F-15, known as the F-15X, as long as there is enough money in future defense budgets, Air Force Chief of Staff Gen. David Goldfein told Defense News Saturday. And regardless of whether the service does buy the new jets this year, Goldfein said the new aircraft won't be taking money from the Lockheed Martin F-35. “I'm not backing an inch off of the F-35” Goldfein said. “The F-35 buy that we're on continues to remain on track. And I'm not interested in taking a nickel out of it when it comes to buying anything else in the fighter portfolio.” The FY2020 defense budget has been the focus of speculation for months, and the Pentagon has still not released a final topline figure. Original planning had called for a $733 billion topline, which dwindled down to $700 billion after calls from President Donald Trump to slash federal spending and then ballooned up to $750 billion after the intervention of then-Defense Secretary Jim Mattis. In December 2018, Air Force Secretary Heather Wilson told Defense News that “all options are on the table," and on Saturday Goldfein acknowledged that the service had built multiple budgets as different figures were proposed. “We built the [$]730[billion] budget, and we went in and did a drill said what if we only get [$]700[billion] and what do we subtract, and what if there was a [$]750[billion] budget?” he said. Goldfein would not directly confirm that the Air Force has the money in the budget for the new planes. But he hinted strongly that the service would pull the trigger on acquiring them. The F-15X is an improved model from Boeing, teaming a new airframe with an improved radar, cockpit, electronic warfare suite and the ability to carry more missiles, bringing in upgrades that have been developed for the F-15s sold to Qatar and Saudi Arabia. Late last year, Bloomberg reported that the Air Force was planning to request $1.2 billion for 12 of the fourth-generation jets in the 2020 budget request. The report said the aircraft would go to the Air National Guard to replace the olders F-15Cs, which date to the 1980s. And that age is why the Air Force is looking at a new variant. The service currently has about 230 F-15C and D model aircraft in service. However, Goldfein acknowledged those aircraft don't have the lifespan to make it to 2030 like other current fourth-generation aircraft, such as the F-15E, the F-16 and A-10. “It [has] performed brilliantly, but the cost growth runs to a point to where you're spending too much money," Goldfein said. The Air Force's decision to buy new F-15s came as a surprise late last year, as Air Force leadership had previously pushed back on the Boeing sales pitch. As recently as September 2018, Air Force Secretary Heather Wilson said that the Air Force needed to prioritize buying fifth-generation aircraft. "We are currently 80 percent fourth-gen aircraft and 20 percent fifth-generation aircraft,” she said at the time. "In any of the fights that we have been asked to plan for, more fifth-gen aircraft make a huge difference, and we think that getting to 50-50 means not buying new fourth-gen aircraft, it means continuing to increase the fifth generation.” But, Goldfein said Saturday that the decision to possibly refresh the F-15 fleet comes down to the need for more fighters in service, regardless of generation. “They complement each other,” he said. “They each make each other better.” When asked if that meant compromising for quantity over quality, he said that would not be the case. “We've got to refresh the F-15C fleet because I can't afford to not have that capacity to do the job and the missions.” Goldfein explained. “That's what this is all about. If we're refreshing the F-15C fleet, as we're building up the F-35 fleet, this is not about any kind of a trade.” He added that Air Force needs to buy 72 fighters a year to get to the amount they need in the future — and to drive average aircraft age down from 28 years to 15 years. And while Goldfein might want all 72 to be fifth generation F-35s, budgetary concerns likely won't let that happen. “If we had the money, those would be 72 F-35s. But we've gotta look at this from a cost/business case.” he explained. “An F-15 will never be an F-35. Never. But I need capacity.” https://www.defensenews.com/newsletters/2019/01/26/if-the-money-is-there-new-and-improved-f-15s-could-be-coming-soon-to-the-air-force