{"id":136336,"date":"2018-04-12T18:08:33","date_gmt":"2018-04-12T18:08:33","guid":{"rendered":"https:\/\/smg.go-vip.net\/militarytimes\/uncategorized\/2018\/04\/12\/f-35-program-office-wraps-up-final-developmental-flight-test\/"},"modified":"2026-08-08T00:21:52","modified_gmt":"2026-08-08T00:21:52","slug":"f-35-program-office-wraps-up-final-developmental-flight-test","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/militarytimes\/news\/2018\/04\/12\/f-35-program-office-wraps-up-final-developmental-flight-test\/","title":{"rendered":"F-35 program office wraps up final developmental flight test"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">WASHINGTON \u2014 The F-35 Joint Strike Fighter on Wednesday flew its final developmental flight test, effectively capping off the development phase of the program 11 years after the aircraft took its first flight in 2006. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The F-35, built by Lockheed Martin, will now move into operational test and evaluation conducted by the Pentagon\u2019s independent testing office. Once finished, the systems development and demonstration (SDD) portion of the program will be officially complete and the F-35 will enter full rate production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vice Adm. Mat Winter, F-35 joint program executive officer, said Wednesday <a href=\"https:\/\/www.defensenews.com\/digital-show-dailies\/navy-league\/2018\/04\/11\/f-35-program-head-supportive-of-future-transition-to-service-led-offices\/\" title=\"\" class=\"\" target=\"_blank\">at the Navy League\u2019s Sea Air Space conference<\/a> that he expected to finish the final SDD flight test this week \u201cand potentially even today. \u2026 That is a significant milestone for this program.\u201d <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That test point \u2014 during which the Navy test aircraft CF-2 collected data while carrying 2,000-pound GBU-31 Joint Direct Attack Munitions and AIM-9X Sidewinder missiles as an external load \u2014 occurred on April 11 at Naval Air Station Patuxent River, Md.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Over the entire test program, the JPO was responsible for \u201cconducting more than 9,200 sorties, accumulating over 17,000 flight hours, and executing more than 65,000 test points to verify the design, durability, software, sensors, weapons capability and performance for all three F-35 variants,\u201d Winter said in a statement on Thursday. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During the SDD program, the program completed more than 1,500 vertical landing tests of the Marine Corps\u2019 F-35B short takeoff and vertical landing variant, and conducted six periods of at-sea testing with the F-35B and F-35C carrier variant. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It also carried out 183 weapon separation tests and 46 weapons delivery accuracy tests, as well as 22 mission effectiveness tests that weigh the F-35\u2019s abilitiy to stand up to advanced threats in multi-ship engagements of up to eight joint strike fighters, the JPO said in a statement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"\/wp-content\/uploads\/2026\/08\/Final-SDD-Flight-Test-Landing.jpg.jpg\" alt=\"\" class=\"wp-image-115624\" srcset=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/Final-SDD-Flight-Test-Landing.jpg.jpg 1200w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/Final-SDD-Flight-Test-Landing.jpg.jpg?resize=300,200 300w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/Final-SDD-Flight-Test-Landing.jpg.jpg?resize=768,512 768w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/Final-SDD-Flight-Test-Landing.jpg.jpg?resize=1024,683 1024w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">A F-35C test aircraft, CF-02, lands at Naval Air Station Patuxent River, Md., on 11 April 2018 after making the final developmental test flight. (F-35 Joint Program Office)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Greg Ulmer, Lockheed Martin\u2019s vice president and general manager of the F-35 program, called it the \u201cmost comprehensive, rigorous and the safest developmental flight test program in aviation history.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, it has not been without its roadbumps. Cost overruns led to a Nunn-McCurdy breach in 2010 that forced the Defense Department to assess whether it should continue on with the program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">And although the JPO has gained better control overall on development, production and sustainment costs, there were a couple high profile technical problems including engine issues that started a fire and kept planes from going to Farnborough Airshow 2014 and an <a href=\"https:\/\/www.defensenews.com\/digital-show-dailies\/afa-air-space\/2016\/09\/20\/bogdan-f-35-coolant-line-fix-coming-in-weeks\/\" data-original-title=\"\" title=\"\" class=\"selected-link\" aria-describedby=\"popover187348\" style=\"\">insulation supply defect<\/a> that caused some jets to be grounded in 2016.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.defensenews.com\/breaking-news\/2018\/04\/11\/defense-department-halts-f-35-deliveries-amid-repair-bill-disagreement-with-lockheed\/\" title=\"\" class=\"\" target=\"_blank\">latest problem<\/a>, revolving around <a href=\"https:\/\/www.defensenews.com\/air\/2017\/11\/01\/minor-quality-control-issue-creates-new-problem-for-f-35-enterprise\/\" title=\"\" class=\"\" target=\"_blank\">corrosion in fastener holes<\/a>, has been resolved technically, but the JPO and Lockheed still are disputing who should pay for the fix. The Defense Department has stalled deliveries until then.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although SDD flight tests have ended, F-35 flight testing will continue as part of follow-on modernization efforts called Continuous Capability Development and Delivery, or C2D2, the JPO stated in a news release. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, that strategy has also been somewhat controversial.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When Winter <a href=\"https:\/\/www.defensenews.com\/smr\/defense-news-conference\/2017\/09\/06\/f-35-program-office-floats-new-agile-acquisition-strategy\/\" title=\"\" class=\"selected-link\" target=\"_blank\">unveiled the strategy<\/a> during the Defense News conference in September, he said its use of agile software development would help the program continuously adopt new software updates and improvements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But <a href=\"https:\/\/www.defensenews.com\/air\/2018\/03\/08\/new-f-35-modernization-plan-could-come-with-hefty-16b-price-tag\/\" title=\"\" class=\"\">critics say<\/a> that C2D2 allows the JPO to claim they\u2019ve delivered fully combat capable jets with 3F software and push fixing minor software deficiencies to later in the program.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For the final test point, an F-35C collected data while carrying external stores.<\/p>\n","protected":false},"author":7,"featured_media":115623,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":15,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":[]},"categories":[15],"tags":[],"coauthors":[3297],"class_list":["post-136336","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":{"subheadline":"","legacy_arc_id":"3MKKLABJDZH6RKED23VJ6WVGSQ","arc_canonical_url":"\/air\/2018\/04\/12\/f-35-program-office-wraps-up-final-developmental-flight-test\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented By:"},"yoast_head":"<!-- This site is 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