United Launch Alliance’s Vulcan rocket flies debut mission

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  25 octobre 2018 | International, Aérospatial

  Battle over Air Force’s $1,300 coffee cups heats up

  By: Stephen Losey The Air Force, under fire for throwing down $1,280 apiece to replace in-flight reheating cups after their handles break, is pledging to use 3-D printing to get that replacement cost down to 50 cents. But Sen. Chuck Grassley, R-Iowa, is still wondering why these pricey water heaters are necessary in the first place, and plans to keep pushing the Air Force to find cheaper waysto warm up their coffee. The cups, which plug into outlets on cargo planes to reheat liquids such as water or coffee, have a faulty plastic handle that easily breaks when the cups are dropped. And because replacement parts for the cup are no longer made, the Air Force has had to order a whole new cup when the handle breaks. In an Oct. 2 letter to Air Force Secretary Heather Wilson, Grassley said that 25 replacement cups, each costing roughly $1,280 each, have been bought this year alone, for a total of roughly $32,000. The 60th Aerial Port Squadron at Travis Air Force Base in California spent nearly $56,000 to replace broken cups over the past three years. And the price is rising. Grassley noted that Travis said each cup cost taxpayers $693 in 2016. “Paying nearly $700 for a single cup is bad enough, but it's simply beyond reason to continue to pay ever-increasing prices for something as simple as a coffee cup that is so fragile that it needs to be constantly replaced,” Grassley said. “This latest example of reckless spending of taxpayer dollars gives me no confidence that the Air Force is taking real steps to reduce wasteful spending practices.” In an Oct. 17 letter to Grassley, Wilson said that “it is simply irresponsible to spend thousands of dollars on manufactured parts when we have the technology available to produce them ourselves,” once a supplier either stops producing those parts or goes out of business. Wilson said that in July, she ordered a new Air Force Rapid Sustainment Office to be created to find ways to develop and deliver parts at a fraction of the cost of traditional manufacturing methods. This office has recently shown it can 3-D print replacement handles for the reheating cup for about 50 cents each. Wilson told Grassley that this cup is specially manufactured to plug into aircraft systems, and because it connects to the aircraft, the replacements need to be certified as airworthy by the FAA. This has driven up the cost of buying 391 of these cups since 2016 to $326,785, Wilson said, or about $836 apiece. The water heaters are used on 59 KC-10s, 52 C-5s, and 222 C-17s, Wilson said. But with planes aging, and the average KC-10 at 34 years old, it's harder and harder to find replacement parts for those aircraft, she said. And the price tag for raw materials for those parts is also increasing, Wilson said, with copper and chrome plating costs have increased 180 percent since 2016. Wilson told Grassley that she and Chief of Staff Gen. Dave Goldfein have ordered the new sustainment office to look for items in the procurement process that it can self-produce, or other overpriced items that it can stop buying without hurting the Air Force's mission. Grassley was dissatisfied with Wilson's response, and said he will keep digging. “It leaves me with more questions,” Grassley said. “While I appreciate that the Air Force is working to find innovations that would help save taxpayer dollars, it remains unclear why it cannot find a cheaper alternative to a $1,280 cup. Government officials have the responsibility to use taxpayer dollars efficiently. Too often, that's not the case.” The Air Force also said that Air Mobility Command is no longer buying the heaters for large transport aircraft as they try to find more cost-effective solutions. https://www.airforcetimes.com/news/your-air-force/2018/10/22/battle-over-air-forces-1300-coffee-cups-heats-up

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  4 mai 2018 | International, Aérospatial

  DIUx wants drones that are out for blood

  By: Kelsey Atherton For drone delivery to make sense, with existing capabilities of drones, the cargo needs to be relatively light, it needs to have tremendous value, and it needs to urgently travel the last mile by air. This is why, to the extent we've seen drones used for delivery in the wild, it's more likely as a means to carry contraband into a prison than it is a practical alternative to the postal service. But there's one other cargo that fits the description, and that's blood itself. Defense Innovation Unit Experimental, the Pentagon's stand-up Silicon Valley-focused acquisition house, is looking for a drone that can carry a modest cargo of blood, through the dark of night toward where it's most needed. Call it “Dronesferatu.” From FCW: The specs of the solicitation from the Defense Innovation Unit Experimental -- the ability to deliver a 5-pound package over 100 kilometers in “austere environments” -- strongly suggest that they're looking at an unmanned aerial vehicle system that supports refrigeration or other means of temperature control. “These deliveries, ideally automated, will provide essential items to critically wounded military personnel as quickly as possible after an injury occurs,” the April 23 solicitation states. “Ability to sustain a very high frequency of operations over an extended period of time is critical. Speed of delivery, reliability and robustness to failure and interference, response time, and overall delivery throughput are critical.” Getting the right blood to the right people as fast as possible means saving lives. To that end, DARPA's funded research into metabolic rate reduction to see if there's a way to make people bleed out more slowly, or into using female hormones to similarly prolong the survivable time without transfusion. In 2013, the U.S. Army conducted a study on pre-hospital transfusion for battlefield casualties being medically evacuated in Afghanistan, and in 2012 Canadian Blood Services even tested the viability of paratroopers transporting blood for transfusion. Consider blood drones complementary to this field of work. Early tests by researchers at Johns Hopkins and Uganda's Makerere University proved that small vials of blood transported by drone were just as viable as blood transported by car. Those same researchers followed up with a test of blood delivery from ship-to-shore, for possible use in response to coastal areas hit by natural disasters, where the roads are impassable but drones could still safely fly. The American startup Zipline demonstrated its own blood delivery drones in 2016, and has for a year and a half worked on delivering blood by robot to parts of Rwanda. DIUx's ask, that a drone fly over 60 miles and carry 5 pounds of blood, is not far off from what Zipline's drones can already do, with the company stating a range of 100 miles and a cargo capacity of just under four pounds. Weight and range tradeoffs are at the heart of aviation design, so it's likely that vendors have already pitched something within the bounds of the solicitation. Should that drone make a fast turnaround from ask to prototype to useful tool, the troops fighting abroad may gain a better shot at surviving otherwise-fatal blood loss. Unlikely that the reverse-vampire drones will look like bats, though. https://www.c4isrnet.com/unmanned/2018/05/03/diux-wants-drones-that-are-drones-out-for-blood/

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  8 octobre 2021 | International, Aérospatial

  L'armée de l'air suédoise se prépare à la réception de ses premiers Gripen E

  L'armée de l'air suédoise a récemment annoncé que l'escadre de l'armée de l'air de Skaraborg (F7) serait la première de l'armée de l'air suédoise à recevoir le Gripen E. Les essais en vol et les préparatifs se poursuivent en parallèle au sein des armées de l'air suédoise et brésilienne et chez Saab afin de garantir une introduction efficace et sans heurts de l'avion.