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2018 F-35 News and Discussion

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    The windshield comes down and then there are 2 spherical bumps protruding out. Very questionable setup. RCS compromising.

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      Very questionable setup. RCS compromising.
      Says the country with ZERO operational VLO experience to the country with DECADES of operational (and wartime) VLO experience.
      "The early bird gets the worm but the second mouse gets the cheese."

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        Originally posted by KGB View Post


        The windshield comes down and then there are 2 spherical bumps protruding out. Very questionable setup. RCS compromising.
        We have a RCS specialist right here...
        Your "analysis" come from where? Southfront or are you using the "eyeometer"?
        sigpic

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          Originally posted by SpudmanWP View Post
          Says the country with ZERO operational VLO experience to the country with DECADES of operational (and wartime) VLO experience.
          KGB is not a "country"...
          sigpic

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            @Sintra and @Spudman

            Is this just a prototype ? Maybe it will be fixed on the production models.

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              KGB is not a "country"...
              Sorry, I should have said:

              In one hand you have a newcomer to the use of VLO in operational aircraft design and in the other you have someone who has decades of experience in operational and wartime use of 'stealth' concepts and tactics.
              Given that, you do you think will do a better job of designing a VLO jet and will do better at dealing with "bumps" so that they will not adversely affect the VLO signature of the aircraft?
              "The early bird gets the worm but the second mouse gets the cheese."

              Comment


                Is this just a prototype ? Maybe it will be fixed on the production models.
                Those are the MADL and EODAS apertures. They are supposed to (and HAVE to) be there in order to provide 360 coverage.

                Here are 4 hi-res photos of that area. As you can see, there are no corner reflectors, sharp edges perpendicular to the plane of travel, etc as it's all gentle curves.

                https://media.defense.gov/2014/Jan/0...-TJ158-508.JPG
                https://static.businessinsider.com/i...07b2/image.jpg
                https://upload.wikimedia.org/wikiped...-XL333-404.jpg
                https://hushkit.files.wordpress.com/...-jb386-037.jpg
                Last edited by SpudmanWP; 11th July 2018, 03:03.
                "The early bird gets the worm but the second mouse gets the cheese."

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                  MADL antenna on the port side and EODAS camera on the starboard side.

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                    Only true experts with the "Eyeometer" like JSR can make use of it properly!
                    Because sometimes in life we need a bit of fun

                    https://www.youtube.com/watch?v=TXNAp3mKepc

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                      Lockheed Martin dispels F-35 corrosion fears
                      When speaking with Defence Connect, director of F-35 international business development Steve Over was quick to highlight Lockheed's rapid response to the issues identified in late 2017.

                      "We have developed a remediation plan in close collaboration with our customers. It was decided that the issues presented weren't urgent, so they would be rectified as the aircraft cycled back through maintenance depots," he said.

                      ...

                      Meanwhile, recent publicity surrounding apparent depressurisation and oxygen supply issues, allegedly similar to those experienced in the Lockheed Martin F-22 Raptor, were also identified when a number of pilots stationed at Luke Air Force Base presented with physiological symptoms similar to hypoxia, including oxygen deprivation, ear pain and sinus issues.

                      In response to the claims of depressurisation concerns around the F-35 cockpit, Over was clear when he said that it was not a depressurisation issue and that slow progress had been made regarding the root cause analysis, with a number opportunities to improve the robustness of the design identified.

                      Meanwhile, the complex physiological issues experienced by the small number of pilots could not be directly attributed to hypoxia (oxygen deprivation) and it would be prudent to await the final findings of the thorough investigation for a likely cause.
                      More at the jump
                      https://www.defenceconnect.com.au/st...spite-concerns
                      "The early bird gets the worm but the second mouse gets the cheese."

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                        ^ I'm not convinced

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                          Air Marshal Leo Davies [RAAF] is quoted as saying [F-35] will "replace nothing, because they change everything".
                          This had to be emphasized. A transformational aircraft for the complex battle ground of modern war situations.

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                            Exclusive: Lockheed F-35 jet price falls 6 percent to below $90 million - sources


                            The United States has struck a preliminary deal to buy F-35 jets from Lockheed Martin (LMT.N) worth about $13 billion, clearing the way for a larger multi-year purchase that aims to bring the cost per jet down to $80 million by 2020, sources said.The deal for 141 F-35s lowers the price of the F-35A, the most common version of the stealthy fighter jet, to about $89 million, down around 6 percent from $94.3 million in the last deal struck in February 2017, the sources familiar with the talks said.
                            Attached Files
                            Last edited by bring_it_on; 15th July 2018, 20:04.
                            Old radar types never die; they just phased array

                            Comment


                              Originally posted by bring_it_on View Post
                              Exclusive: Lockheed F-35 jet price falls 6 percent to below $90 million - sources
                              So are those $89 million the article mentions 2012 base year dollars or then year/current year (2018) dollars?
                              The graphic certainly says Then Year, but does URF include the engine? So in other words, does one complete F-35 i.e. with engine actually cost $89 million in 2018 in 2018 dollars?
                              How can less be more? It's impossible. More is more.
                              Yngwie Malmsteen

                              Comment


                                URF cost of the last few lots has always been expressed as Flight Vehicle + Engine + Contractor Fees. This was true of Lot-10 and is also true of Lot-11. So in sum, collective sum (URF) paid to LM and P&W towards the F-35 (A).

                                The F-35A variant comprises approximately 85 percent of the program of record. The F-35A unit price in LRIP-10, including aircraft, engine and fee, is roughly seven percent lower than the previous LRIP-9 contract. Over the past two procurement lots (LRIP-9 and 10), the price of the F-35A has dropped 12 percent. LINK
                                Mike Stone at Reuters got the scoop this morning that the new average price is about $89 million per plane for this deal, a 6 percent drop from Lot 10. Breaking D readers will remember that the average price for an F-35A in Lot 10’s 66 planes was $94.3 million, including the engine. The F-35A is supposed to cost about $80 million in the next two or three years, a target first put on the table two years ago by then -Program Executive Officer Lt. Gen. Chris Bogdan. LINK
                                The Unit price for a given contract is calculated based on the deal negotiated with the suppliers for that particular Lot (involves paying them for the work) and the unit cost (URF) based on that negotiated deal is going to be in Current Year $. So the $89 Million for URF of F-35A cost in Lot-11 is derived from the Lot-11 deal negotiated in 2018 (thus in FY19 dollars) whereas the $80 Million target for Lot-14 would be in FY21-22 when that deal is negotiated. In reality however, it is quite rare for all the contract amount for a particular deal to be paid in one Fiscal Year, as there are long lead costs, and payments along the way as the final deal is still in negotiation. The handshake, and the subsequent contract signing will only fix the final amount of the contract as a substantial portion of the contracted amount has already been paid the OEMs to deliver on the Lot.
                                Last edited by bring_it_on; 15th July 2018, 22:09.
                                Old radar types never die; they just phased array

                                Comment


                                  So are those $89 million the article mentions 2012 base year dollars or then year/current year (2018) dollars?
                                  In this context then year represents the year the contract was signed, not the 2012 baseline year used in the F-35 SAR. As BIO indicates, the contract expense covers multiple financial years but the overall dollar cost is baselined to a single year for clarity.

                                  Comment


                                    Pulling 8.9Gs at RIAT18


                                    https://mobile.twitter.com/Oriana021...40202650079232

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                                      Was just about to post the same link....

                                      Critical spectator after F-35 pulls a hard, post stall, instantaneous 130 degree turn: “You done lost all your energy!”
                                      F-35: “Yup” *goes vertical and accelerates*
                                      Last edited by ActionJackson; 16th July 2018, 11:13.

                                      Comment


                                        There was indeed quite some dead time between agressive maneuvres to regain energy. Other 4th gen jet can perform many more maneuvres in the same time frame. Video editing only shows the most dramatic moments. F35 high wing loading means that in an agressive maneuvre it reaches high AoA very quickly bleeding a lot of energy. F35 powerful engine and good FCS somewhat compensate that but there is no miracle in the end.
                                        Last edited by eagle1; 16th July 2018, 14:14.

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