November 25, 2019 | International, Aerospace
ByChristen McCurdy
Nov. 22 (UPI) -- United Technologies has received a $762.5 million contract modification to deliver F135 propulsion systems for the Air Force and Marine Corps.
The new deal, announced Thursday by the Department of Defense, funds Lot 14 production and delivery of 48 F135-PW-100 propulsion systems for the Air Force and 10 F135-PW-600 propulsion systems for the Marine Corps.
The Pratt & Whitney F135 is a turbofan engine for the Lockheed Martin F-35 Lightning II, fifth generation single-engine stealth fighters used the Air Force, Marines and Navy plan to replace much of their fleets with in future years.
In October, Lockheed finalized a $34 billion deal with the Pentagon to deliver 478 F-35 fighter planes in production Lots 12, 13 and 14 at a cost below $80 million each. It's the largest contract in military history, and the lowest per-plane cost for the F-35 series yet.
That deal came after pressure from the Pentagon to lower the per-plane cost of the aircraft, which has also faced scrutiny for production and safety issues.
The new contract funds production of 48 F135-PW-100 engines for the US Air Force. The F135-PW-100 powers the Air Force's F-35A aircraft. Per the October deal, the Pentagon's expected cost per plane for the F-35A in Lot 14 in $77.9 million.
The deal also funds 10 F135-PW-600 engines for the Marine Corps' F-35B. Lot 14 production F-35Bs are projected to cost $101.3 million per plane.
The Pentagon has obligated fiscal 2020 aircraft procurement funds in the amount of $762 million -- it covers $521.5 million in purchases for the Air Force and $240.9 in Marine Corps.
The bulk of work will be performed in East Hartford, Connecticut, with some work taking place in Indianapolis and Bristol, England.
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April 9, 2018 | International, Aerospace
By: Valerie Insinna WASHINGTON — The Block III Super Hornet is getting a marginal increase in stealth capability, but if you're expecting the invisible aircraft of President Donald Trump's dreams, think again. Building a “stealthy” Super Hornet has been one of Trump's talking points since he was elected to the presidency. During a March trip to Boeing's plant in St. Louis, he claimed the U.S. military would buy Super Hornets with “the latest and the greatest stealth and a lot of things on that plane that people don't even know about.” Trump was referring to one of the Super Hornet's Block III upgrades slated to be incorporated on jets rolling off the production line in 2020: the application of radar absorbent materials or RAM, also known as stealth coating. But far from being “the latest and greatest,” the company has already used the exact same materials on the on the Block II Super Hornet to help decrease the chances of radar detection, said Dan Gillian, who manages Boeing's F/A-18E/F Super Hornet and E/A-18G Growler programs. Block III jets will get “a little more” of that coating applied to them, “and in a few different areas to buy a little bit more performance,” Gillian told Defense News in a March interview. All in all, those improvements will reduce the aircraft's radar cross section by about 10 percent, and with very low risk, he said. Although the general public tends to think of stealth like the invisibility cloak from Harry Potter or Wonder Woman's invisible plane, stealth is more of a continuum that is enabled and affected by many factors, experts told Defense News. “It's not a Romulan cloaking device,” said Richard Aboulafia, a Teal Group aviation analyst, referencing a technology from Star Trek that allowed spaceships to be invisible to the naked eye and electro-optical sensors. “It's about reducing the likelihood that an adversary will see you first. And seconds count, so if it buys a little extra time, then it helps.” The most important contributors to low observability are the aircraft's shape and the use of LO coatings, with airframe shape commonly seen as twice as important as the coatings, he said. Stealth fighters from the oddly angled F-117 to the F-22 and F-35, with their rounded edges, were all designed to bounce radar waves away from an aircraft, sometimes at the expense of aerodynamic performance or other attributes, said Brian Laslie, an Air Force historian and author. That being said, the Super Hornet, with it's external stores and pylons, is not going to replicate the low observability of the joint strike fighter, which was designed from the beginning with stealth in mind. “But just because it's not a pure LO aircraft doesn't mean that the designers weren't concerned with the radar return,” said Laslie, who added that it's “reasonable” to expect a 10 percent decrease to the aircraft's signature by augmenting Block III jets with additional RAM coating. Shining a spotlight on the Super Hornet's low observable attributes may have helped sell Trump on future orders, Aboulafia speculated. “It might be useful in the real world too, but in a much more marginal way,” he said. One of those benefits, according to Laslie, is that the LO performance upgrade could also enable the Navy to be more flexible in its mission planning. An aircraft can be more or less easily detected by radar depending on how it is positioned or the route used by the plane, so having more radar-absorbing materials on the Super Hornet could give the pilot more options. “I think what the Navy is doing is trying to maybe reduce enough of the cross section of the F-18 in high intensity combat scenarios,” Laslie said. “I don't think they're trying to make the F/A-18 a stealth aircraft,” he continued. “But if they can reduce the radar cross section enough that in certain scenarios it is more difficult to pick the Super Hornet up, that would be of benefit to the Navy.” While the president has done much to focus public attention on the Super Hornet's upcoming LO upgrade, the Block III actually offers a relatively modest increase in stealth compared to earlier concepts floated by Boeing. In 2013, when the company began evaluating how to attract future sales from the Navy as production slowed, it started promoting an “Advanced Super Hornet” configuration that would have improved the aircraft's signature by 50 percent. That version of the jet included structural enhancements and an enclosed weapons pod, but Boeing ultimately stepped away from that concept. “Those big compromises you have to make to get the higher levels of stealth like putting your weapons in a bay, we don't think that's a necessary part of the Block III story for the Super Hornet,” Gillian said. https://www.defensenews.com/digital-show-dailies/navy-league/2018/04/09/how-stealthy-is-boeings-new-super-hornet/