FY2020 DoD Budget

Program progress, politics, orders, and speculation
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f119doctor

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Unread post23 Apr 2019, 19:38

Higher engine TIT does not necessarily result in a higher temperature exhaust plume, especially if accompanied by higher engine overall pressure ratio. That high TIT goes down as the turbines extract work to drive the compressors, and expansion through the exhaust nozzle all lower the plume temperature before it exits the aircraft. Higher TIT and OPR together increase the thermodynamic cycle efficiency of the engine, everything else being equal (which they never are). Obviously, bypass ratio and nozzle pressure ratio all play into the exhaust plume temperature.

As noted in previous posts, turbine exhaust case, augmenter liner, and nozzle liner cooling are all used to reduce the visible thermal signature of the exhaust system components.

Also, remember that these aircraft do not spend all of their time at Intermediate or Max AB. During much of the mission, the engines are throttled back to cruise power, with lower plume and exhaust hardware temperatures. Throttle settings can be part of the pilot's signature management throughout the mission.
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Unread post24 Apr 2019, 04:10

From Beaufort. 8)
https://www.islandpacket.com/opinion/op ... 73179.html
MCAS Beaufort Air Show stars F-35’s might. So why is Pentagon pushing F-15 for USAF?
BY SHANNON ERICKSON SPECIAL TO THE BEAUFORT GAZETTE AND THE ISLAND PACKET
APRIL 23, 2019 10:15 AM,
With the Beaufort Marine Corps Air Station Air Show this weekend, we have the opportunity to see the world’s most advanced fighter jet — the F-35 Lightning II — up close and learn more about its contributions to the Palmetto State’s economy and role in keeping America safe.

The F-35 is as stealthy as a shadow, using advanced computer engineering and extraordinary power to protect our pilots and our country.

Beaufort is the most important training base for the U.S. Marine Corps’ version of the fighter jet, the F-35B. Pilots from the U.S. and the U.K. and Italy have trained in our hometown, and some of these pilots have already used the F-35 in combat.

Last year, companies producing components of the F-35 aircraft supported almost 500 direct and indirect jobs across the state, providing almost $34 million in economic impact.

Many of these suppliers are small businesses, but even more important to Beaufort is the economic impact from the Pilot Training Center and the Marines and their families coming to Beaufort for training, and spending money on rent, restaurants, clothes and cars at local business. The people strengthen our community as their expenditures boost our economy.

Looking well beyond our local borders, we see China and Russia striving to compete with this example of American ingenuity. We must respond to this reality, but the Pentagon and Lockheed Martin, the manufacturer of the jet, are fighting to make sure American taxpayers get the most for their money.

The cost for some F-35s will fall below $80 million next year, in large part because the jet is being developed and upgraded at the same time. The Air Force, Navy and Marine Corps will all fly similar jets but with different capabilities, meaning that there are lower development costs, and selling the jet to America’s allies helps the F-35 program reach economies of scale to lower costs.

You can imagine my surprise when I read that the Pentagon brass is trying to push the Air Force to buy F-15s instead of F-35s. The F-15 has been in production since 1976, and production of this fourth-generation airplane is due to end in 2022.

The F-35 capabilities can never be added to an old F-15 aircraft, because what makes the F-35 a fifth-generation fighter is built into its stealthy structure, advanced avionics, and helmet with a 365-degree view.

The first time I saw an F-35B fly, I was amazed at its power, but when I had the chance to fly the cockpit demonstrator, the power and advanced capabilities became real to me. Our men and women in uniform need these capabilities to stay safe in our uncertain world.

Would you want your son or daughter to go to war with less protection than was available because someone in the Pentagon thought that 45-year-old airplane was good enough? Those of us living in the area — and truly across the Palmetto State — are proud, as the F-35 sound of freedom protects our country and makes our world safer.

Our Beaufort Marines know that their F-35 planes are on the front lines of fighting tyranny. From North Korea to Syria, both American and international F-35 pilots are showing the vital difference made by the only fifth-generation fighter jet so far operating in the world.

As you watch the amazing capabilities of the F-35 at the Beaufort air show this weekend, realize that you are watching a fighter that the world envies and that is contributing to the economy of our state, safety of our men and women in uniform, and protecting America.

Shannon Erickson of Beaufort represents District 124 in the South Carolina House of Representatives.
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Unread post24 Apr 2019, 06:06

If, the OSD/USAF go thru with buying the F-15EX. That decision will be attacked and ridiculed for years to come. As a "colossal mistake"......

:shock:
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Unread post24 Apr 2019, 13:38

Corsair1963 wrote:If, the OSD/USAF go thru with buying the F-15EX. That decision will be attacked and ridiculed for years to come. As a "colossal mistake"......

:shock:


Didn't stop Gates from going stupid on the F-22...
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Unread post25 Apr 2019, 22:21

Air Force secretary raised ethical concerns about Shanahan
25 Apr 2019 Aaron Mehta

"...a new inspector general investigation into the acting secretary of defense — released Thursday, and clearing him of any wrongdoing in regards to pushing products from his previous employer, Boeing — shows the tensions existed at a different level than previously reported. Of the 33 witnesses interviewed by the IG’s office, including former Secretary of Defense Jim Mattis, the joint chiefs, and other top Pentagon officials, Wilson was the only one to raise red flags about Shanahan’s behavior.

“None of the other witnesses told us that they had any concerns regarding his adherence to his ethical obligations. Many reported that Mr. Shanahan was attentive to his ethical obligations,” the IG wrote. While Wilson raised concerns about Shanahan’s actions, others in the Pentagon interviewed by the IG noted that the former executive was preemptive in avoiding what may be conflicts of interest....

...Wilson’s concerns came from three areas. The first, Shanahan’s potential role in a decision to accept the KC-46 tanker despite ongoing issues from manufacturer Boeing; second, a December meeting between Shanahan and Elon Musk, the CEO of SpaceX; and third, whether the former executive shared classified information from Boeing programs improperly....

...Despite these three concern areas, Wilson did tell the IG she felt Shanahan mostly acted properly when talking about his past with Boeing.... ...Wilson also stated that Shanahan may have said, “’We would never have done it this way. Or we wouldn’t do it this way,’” adding: “It was more comparing his experience and criticizing a contractor that he felt wasn’t getting the supply chain right.” She later told the IG that she never had a discussion with Shanahan about buying the F-15X, a Boeing-made jet…."

Source: https://www.defensenews.com/pentagon/20 ... -shanahan/

Shanahan Cleared of Wrongdoing by Pentagon IG, Setting Stage for Nomination
25 Apr 2019 Brian Everstine

"The Defense Department Inspector General on Thursday cleared Acting Defense Secretary Patrick Shanahan of allegations that he violated an ethics agreement and promoted his former employer, paving the way for a possible nomination to take the job permanently. The IG opened the investigation in early March after reports that he criticized Lockheed Martin over the performance of the F-35 program. Watchdog organizations and anonymous individuals claimed this was a violation of an ethics agreement he has in the Defense Department that forces him to recuse himself from Boeing-related matters. Shanahan has said he welcomed the investigation.

“We did not substantiate any of the allegations,” the IG states. “We determined that Mr. Shanahan fully complied with his ethics agreements and his ethical obligations regarding Boeing and its competitors.”

...The IG said the complaints against Shanahan also included pressure on Air Force Chief of Staff Gen. David Goldfein to buy the Boeing F-15EX, and to Marine Corps Commandant Gen. Robert Neller to buy more Boeing F/A-18s. A Senate Armed Services Committee attorney and member of the staff of Sen. Elizabeth Warren (D-Mass.) forwarded allegations, along with a complaint from the Citizens for Responsibility and Ethics in Washington....

...Additionally, there “was no evidence that he made any comments pressuring General Neller, General Goldfein, or anyone else, about purchasing F-15 or F/A-18 aircraft as alleged,” states the report....

...The investigation focused on the decision to buy the F-15EX, which originated from the DOD’s. Cost Assessment and Program Evaluation office. During these discussions, CAPE spoke only in general mission capabilities with Shanahan and not specifically about individual aircraft. Mattis made the ultimate decision, and “Shanahan did not participate in these discussions or decisions, and he did not provide any guidance or direction on this subject.” Goldfein told the IG that in his experience with Shanahan, “he’s been very disciplined about adhering to the recusal.”...

...Wilson told investigators that Shanahan wouldn’t tout Boeing. While he would make references to his experience in programs like the Dreamliner, she never took it as an ethical problem. Wilson said that while Shanahan may have said, “We would never have done it this way, or we wouldn’t do it this way. … It was more comparing his experience and criticizing a contract that felt he wasn’t getting the supply chain right.”


However, Wilson said elsewhere in the report that at times, specifically related to the meeting with Musk, meetings on the KC-46, and in a separate classified matter that “at least on one occasion, I felt uncomfortable.” This was the only concern brought up in the interviews, according to the report. Other witnesses spoke highly of Shanahan, with Mattis saying he was “my ethical standard bearer the way he carried out his duties on a whole host of issues.”

With the investigation over, Shanahan has cleared a major hurdle to being nominated to be the Defense Secretary permanently, a step he said he wants.

Source: http://www.airforcemag.com/Features/Pag ... ation.aspx
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marauder2048

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Unread post25 Apr 2019, 23:14

So CAPE's report on 4th/5th gen mix is finalized in June of 2017.

But No new builds show up in the AF's FY19 or initial FY20 budget. But what you do have
in the FY19 budget is the first appearance of F-15 C/D Wing Replacement.

So what's actually in that report?
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Unread post25 Apr 2019, 23:24

DoDIG Completely Clears Shanahan Of Ethics Charges
25 Apr 2019 Colin Clark

"Acting Defense Secretary Shanahan did not abuse his office, the DoD Inspector General found.

...The investigators combed through more than 5,600 pages of unclassified and about 1,700 pages of classified documents “related to the allegations and the relevant major defense acquisition systems.” The bottom line was stark and clear: “We did not substantiate any of the allegations. We determined that Mr. Shanahan fully complied with his ethics agreements and his ethical obligations regarding Boeing and its competitors.” The investigation started on the Ides of March, not necessarily an auspicious day. Few senior officials I’d spoken with believed Shanahan had violated any ethics agreements, but the day clearing him of the allegations is auspicious for all involved....

...Shanahan did not abuse his office, the IG found."

Source: https://breakingdefense.com/2019/04/sha ... by-dod-ig/

IG Report: Shanahan Called F-35 Program, Not Plane, 'F-----d Up'
25 Apr 2019 Gina Harkins

"...Shanahan allegedly called the F-35 Lightning II program "f---ed up," according to the report. Witnesses said he was critical of how Lockheed Martin and the DoD Joint Program Office managed the F-35, but all but one said he didn't "repeatedly dump" on the aircraft.

The acting defense secretary told investigators the F-35 aircraft itself is "awesome," but that the program is "f---ed up." There are too many expensive retrofits, he said, and the planes are too often on the ground awaiting those fixes. But that sentiment appears to be widespread among Pentagon leaders. Witnesses said his comments about the F-35 program are consistent with those made by other defense leaders, the report states.

"Many people criticized the F-35 program," Air Force Gen. John Hyten, head of U.S. Strategic Command, told investigators. "I've criticized the F-35 program in public." Robert Daigle, director of the Defense Department's cost-assessment and program evaluation, said, "Most of the people in the [Pentagon]" have said critical things about the F-35 program.

Mattis tasked Shanahan with reviewing the F-35 program last spring. While Mattis said Shanahan did make comments about the program that some might have considered disparaging, the former defense secretary wanted him to be honest. "He's doing his job, as far as I'm concerned," Mattis said. "I didn't pay him to be a shrinking violet when it came to saving the government money."...

...Investigators did not substantiate claims that Shanahan had made disparaging remarks about Lockheed Martin's chief executive officer. None of the witnesses said they'd heard Shanahan speak negatively about Lockheed Martin as a company or its CEO, the report states.

When asked about those allegations, Shanahan said that, whenever he spoke about Lockheed, it was always in connection to the F-35 program. "He said he was 'disappointed and frustrated' that Lockheed Martin was not supporting its customer, the DoD, properly, and was not taking the initiative to give the government a plan for improving its F-35 program," the report states...." [long article BEST READ AT SOURCE]

Source: https://www.military.com/daily-news/201 ... e-f-d.html
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marsavian

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Unread post25 Apr 2019, 23:40

One can't help but feel that if there had been an existing plan to replace ANG F-15C with F-35 then this would not have left a vacuum for the F-15X concept to be born.
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Unread post26 Apr 2019, 00:39

marsavian wrote:One can't help but feel that if there had been an existing plan to replace ANG F-15C with F-35 then this would not have left a vacuum for the F-15X concept to be born.


The previous plans were premised on cost-effectiveness and involved SLEPs.

A. SLEP'ed F-16s + AESA from units that had converted to F-35

or

B. SLEP'ed F-15C/Ds (longeron + wing replacement) + maybe EPAWSS according to DODIG

Option B was in FY19 and I'm guessing in the original FY20 submission since Option B lets
you grow capacity provided you do the SLEP part of Option A for which they were targeting $2.4 million per F-16.

So even all of A + B is substantially cheaper for two SLEP'ed aircraft than an F-35 or F-15 new build.

So the question again is: what was in the report?
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Unread post26 Apr 2019, 06:33

Looks like somebody wasn't a Boeing Marketeer. No one gets a warning for suggesting that. Only applies to suggesting LM marketeers apparently.

https://media.defense.gov/2019/Apr/25/2 ... 19-082.PDF

3. Alleged Threats Regarding the Purchase of F- 15X Aircraft

CAPE had a meeting with Secretary Mattis, Ms. Wilson, and General Goldfein regarding the 4th and 5th generation mix. Mr. Daigle told us that during this meeting, Ms. Wilson and General Goldfein told Secretary Mattis that the Air Force agreed with the CAPE recommendation.


Fact: Wilson, Goldfein and Airforce already agreed to the F-15X before year 2019.
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Unread post26 Apr 2019, 13:54

So if Congress goes against the F-15EX they will have to provide a viable alternative to the requirements that CAPE used to justify it as they can't use alleged ethics issues to deny it. Frankly I see it surviving along with more F-35 top-ups to placate the F-35 caucus. Despite their old vulnerable designs one thing I like about both the F-15/F-18 products is the sheer amount of fuel they can both carry when fully laden with CFT/EFT, well over 30 klbs, which as platforms will give them great range and endurance. Sure, not stealthy, but very far out they might be the only fighter platform at least until PCA comes onboard.
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Unread post26 Apr 2019, 17:57

weasel1962 wrote:Mr. Daigle told us that during this meeting, Ms. Wilson and General Goldfein told Secretary Mattis that the Air Force agreed with the CAPE recommendation.


That's what's called hearsay. You won't find any evidence of in that document of Goldfein endorsing it.
Plus, if OSD directs you to do something there's no recourse but to agree. If you don't in reality, you
vote with your feet and resign which is what Wilson is doing.

weasel1962 wrote:Fact: Wilson, Goldfein and Airforce already agreed to the F-15X before year 2019.


Then why wasn't it in the FY19 or the initial FY20 budget? CAPE's report had been out for two budget cycles.
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Unread post26 Apr 2019, 18:32

marsavian wrote:So if Congress goes against the F-15EX they will have to provide a viable alternative to the requirements that CAPE used


Just call Daigle to testify as to the impossibility of new builds being cheaper than the SLEP.
A simple: "what happened to the F-15 C/D Wing replacement funds that had the benefit of CAPE's CY2017 analysis?"
would answer a lot of questions.
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Unread post27 Apr 2019, 00:38

Well then it shouldn't be that difficult for Congress to reinstate these wing SLEP funds and cancel the F-15EX if they so desire and the political will is there.
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Unread post27 Apr 2019, 12:51

Was there any concerned that he wouldn't pass the ethics committee. It's not a very high bar after all
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