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Noise Biggest Worry For F-35B On USS Wasp; Marines Fly Through Testing
Noise Biggest Worry For F-35B On USS Wasp; Marines Fly Through Testing « Breaking Defense - Defense industry news, analysis and commentary


ABOARD USS WASP: When you start getting bored during an operational test after watching the seventh or eighth F-35B float down the carrier deck and slip up into the air, you know the Marines and Navy are doing something right — or being very lucky.

The six pilots have put their planes into the air close to 100 times since Operational Test 1 (OT-1) began May 18. I was out on the USS Wasp all day yesterday.

Much of what the Marines are doing is focused on operations, in keeping with their plan to declare the F-35B ready for Initial Operating Capability (IOC) in July. Today, the F-35Bs are flying simulated operations to protect the Wasp from incoming enemy aircraft played by other F-35s. They’re trying to begin the process of generating sorties at the same pace they might have to during a war. (We heard from one pilot that the F-35Bs had already met and beaten the ship boarding rate of the Harrier fleet.) The Marines flew the largest engine module out to the Wasp on a V-22 to ensure it would fit on the Osprey and to begin planning how to store the gear.

The 91 maintainers aboard the Wasp jacked up an F-35B and found they needed to come up with some new gear to do it easily and safely to manage the 32,300 pound aircraft.

But there is one aspect of the plane’s operation that raised concerns. “I’m most worried about noise,” the aircraft generates, the head of NavSea (Naval Sea Systems Command), Vice Adm. William Hilarides, told me just before we left the Wasp. Earlier, a small group of reporters were interviewing F-35 maintainers in the hangar deck where the massive elevator raises and lower planes to and from the flight deck. An F-35B hovered and then landed, almost overhead. Everyone covered their ears. All conversation stopped. My head was ringing from the noise by the time the plane landed. The USS Wasp has placed microphones all around the flight deck, in the hangar deck and anywhere else that might be affected to monitor noise levels. Of course, noise is something the military is pretty effective at dealing with.

A gaggle of pilots spoke to us about the Marine’s version of the Joint Strike Fighter. There were two British officers on the panel as well, demonstrating the incredibly close working relationship between the US and British forces. After all, the biggest ship ever built for the Royal Navy, the HMS Queen Elizabeth, will routinely carry a dozen F-35Bs. We didn’t hear much news from the pilots, but the enthusiasm for the F-35 from former F-18 and Harrier pilots was impressive.


F-35B-taxiing-during-night-ops-aboard-USS-Wasp-1024x683.jpg

An F-35B taxis on the USS Wasp at night on May 22, 2015.

Perhaps the most interesting tidbit we heard came from a maintainer on the ship, Staff. Sgt. William Sullivan. He’s responsible for ensuring the aircraft maintain their stealth signature. Stealth, of course, depends on coatings as well as engineering. Nicks, scratches or unexpected reactions with sea water and all the chemicals aboard ship could degrade the F-35’s stealth. So I asked Sullivan how the marine environment was affecting this: “Up to now the coatings have held up extremely well.”

Perhaps the most surprising thing we heard was that ALIS (the Autonomic Logistics Information System) “is performing extremely well.” Lt. Commander Beth Kitchen of the Royal Navy should know as she is stationed in Beaufort, S.C. with the Marines training to fly the F-35B and she is responsible for the UK’s efforts to build a maintenance force for their F-35Bs. Breaking D readers will remember that the head of the Joint Program Office, Lt. Gen. Chris Bogdan, has criticized the performance of ALIS and it remains one of his main areas of focus as the Marines approach IOC in July, to be followed by the Air Force in August next year.
 

The F-35 Can't Run On Warm Gas From A Fuel Truck That Sat In The Sun
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Tyler Rogoway
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Hey, you give the procurement guy number and I will sell him some refrigerated milk trucks he can use for his paraffin...


The F-35 program continues to work through a litany of problems, but this one is almost laughable. According to the USAF, the troubled fighter cannot use gas from standard green colored USAF fuel trucks if it has been sitting in the sun. Considering that these jets will most likely find themselves operating in the desert or in somewhere in the scorching Pacific, this is a big problem.

We Finally Know Why An F-35 Burned On The Runway We Finally Know Why An F-35 Burned On The Runway We Finally Know Why An F-35 Burned On The Runway
We are finally getting information as to what caused the F-35A engine fire that has left the entire …Read more Read more
Sadly, the answer for the F-35's fuel finicky conundrum, one of many heat related issues with the jets since their testing began, is being addressed outside of the F-35 aircraft itself, in the form of repainting standard USAF fuel trucks with bright white solar reflective paint.
Clearly it is not tactical in any way to be driving a giant white potential fuel-bomb around a battle zone. This is especially true considering that the F-35B variant is supposed to operate 'forward' from austere fields. Still, the solar reflective paint job, that costs around four grand for each truck, seems to be less expensive than fixing the issue on the jet itself, as there is no word of that happening.


After years of passing more conventional capabilities by, I think it is time for the Marine Corps
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Senior Airman Jacob Hartman, of the 56th Logistics Readiness Squadron (LRS), a fuels distribution operator at Luke AFB, describes the situation:
"We painted the refuelers white to reduce the temperature of fuel being delivered to the F-35 Lightning II joint strike fighter... The F-35 has a fuel temperature threshold and may not function properly if the fuel temperature is too high, so after collaborating with other bases and receiving waiver approval from (the Air Education Training Command), we painted the tanks white."
Chief Master Sgt. Ralph Resch, the 56th LRS fuels manager added:
"We are taking proactive measures to mitigate any possible aircraft shutdowns due to high fuel temperatures in the future. It ensures the F-35 is able to meet its sortie requirements... This is the short-term goal to cool the fuel for the F-35; however, the long-term fix is to have parking shades for the refuelers."
Luke AFB is not the first base to run into this issue, with Edwards AFB discovering the problem and initiating the fuel truck repaint solution some time ago. The USAF has some hope that the reflective paint process can be applied to a similar green color as the standard issue refueling trucks used by the USAF. A test will soon occur with a white truck and a green truck, with both being painted with a special solar reflective coating, to see if the green truck plus the reflective coating will keep the F-35's life-force cool enough under the sun for the jet not to have to shut down immediately after start-up due to heating issues.
What is most telling about this strange story is that the USAF thinks a long-term solution to the F-35's warm fuel problem is to park their fuel trucks under purpose-built shade structures. Yet isn't fixing the aircraft's low fuel temperature 'threshold' issue itself more of an honest, robust and logical solution? Like so many things F-35, maybe the operating margins are just too thin for an affordable aircraft-based fix to be plausible.
The F-35 channels its strong thermal loads, accumulated by the powerful avionics and sub-systems on-board, as well as the engine, into its fuel. So really, the fuel works as a giant heat sink. If the fuel is already warm upon start-up, there is less capacity to exchange the heat from their aircraft's simmering systems. Therefore the jet must shut down or risk overheating. A clever design that most likely lightens up the jet and leaves extra room for weapons and fuel, but one that may have very little room for adaptation.
The simple fact that the F-35 is one finicky eater even after many years of development and costly design changes, along with the reality that bright white fuel trucks may become standard issue on F-35 flightlines, are just more sorry reminders of how this supposedly super-capable fighter will come with a long list of limitations and operational caveats, along with its one and a
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Source: USAF
Tyler Rogoway is a defense journalist and photographer who maintains the website Foxtrot Alpha for Jalopnik.com You can reach Tyler with story ideas or direct comments regarding this or any other defense topic via the email address Tyler@Jalopnik.com


Problems plaguing F-35's next-gen maintenance system

By Brian Everstine, Staff writer 9:51 a.m. EDT April 15, 2015

The F-35's highly touted, next-generation software system designed to detail maintenance issues on the jet is plagued with problems that could lead to more delays with the jet's development.
The F-35's Autonomic Logistics Information System is a program that a maintainer plugs into the jet, and it is expected to outline what is wrong and what is working, and to streamline the process of identifying replacement parts. It has been a touted as a game-changing technology to simplify the maintenance process for the new jet.
But members of the House Armed Services tactical air and land subcommittee who spoke with maintainers last month at Eglin Air Force Base, Florida, heard a different story. Maintainers there said 80 percent of issues identified by ALIS are "false positives." Additionally, the program is sluggish, slowing down maintenance instead of streamlining it, subcommittee chairman Rep. Mike Turner, R-Ohio, said during a hearing Tuesday.
"When we asked them how many false positives, I thought it would be a high number because it is a new system," Turner said. "But when they said 80, I was taken aback."
The problems affect Air Force, Marine Corps and Navy variants of the jet.
Lt. Gen. Christopher Bogdan, the program executive officer for the F-35, said that for too long in the jet's development, ALIS was more of an afterthought, as opposed to being treated as an integral part of the weapons system. As a result, the program "has changed fundamentally how we develop ALIS."
The program includes 5 million lines of code, and still "has a long way to go," Bogdan said.
The system is not meeting requirements for service members operating the jets, said Sean Stackley, the assistant secretary of the Navy for research, development and acquisition.
"The issue of false positives is very real," Stackley said. "The concerns with regards to the reliability, responsiveness, the timeliness of ALIS informing the war fighter is at the top of our priority list."
The solution going forward will not be one simple upgrade, he said. The program is testing software upgrades to capture the known deficiency, but it won't be immediate.
"The program is improving, but it is not where it needs to be," Stackley said.
The ALIS system is currently computer racks totaling about 1,000 pounds, and was too big to be used during carrier testing. The program is developing a deployable, two-man portable version of the system that will be ready in July. The version, currently a software suite called 1.0.3, will be incrementally upgraded, with the Marine Corps going to its initial operating capability with a 2.0.1 version later this year and the Air Force getting another upgraded version, 2.0.2, for initial operating capability next summer. The Navy is expected to have initial operating capability in 2018.
 
Alarmist drivel

December 11, 2014 9:06 AM

USAF officials claim that there were no actual malfunctions and that the grounding was merely a "proactive" step, given the delicate nature of the powerful engine that drives the jet.

The fuel fears forced the Luke Airf Force Base (AFB) to repaint fuel trucks with a white reflective paint. Repainting each truck, which sits near the runways and doesn’t have any shade, costs $3,900 per fuel truck. Just one fuel truck has been repainted so far, and testing is being done to see if the reflective paint helps keep the stored fuel at a cooler temperature.

The good news is that with the new paint job keeping the fuel a bit cooler, there have been no reported incidents of F-35 failing to fly in hotter temperatures, with military officials noting the jet flew well during hot desert climate test flights.
DailyTech - Air Force Worries Hot Fuel Could Harm F-35, "Proactively" Paints Trucks Shiny

Note the date: how many incidents since? how many trucks now?
 
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