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Military


F-35 - Continuous Development

Development PhaseAvionics HardwareCapabilities Mission Systems Software Operational Testing
SDD TR-1 Block 2B Block 2B Software
  • Marine Corps Fielding Reports and F-35B IOC
  • Service and JOTT test events
  • Formal OUE canceled
    • TR-2 Block 3i Block 3i Software
  • Air Force Fielding Reports and F-35A IOC
  • Service and JOTT test events
    • Block 3F Block 3F/
    3FR6**     		Pre-IOT&E Increment 1 (Jan – Feb 2018) Cold Weather Deployment For-score testing to evaluate the suitability of the F-35 air system and alert launch timelines in an extreme cold weather environment
    Block 3F/
    30R00***
  • Navy Service Fielding Reports
  • Pre-IOT&E Increment 2 (Starting Mar 2018) Forscore testing of limited two-ship mission scenarios, F-35A deployment, F-35C deployment to a carrier, and weapons delivery events
    • C2D2
    Block 4,
    30 Series
    30R02.04 Portion of Formal IOT&E (Dec 2018 – Sep 2019) Forscore testing of more complex open-air missions
    30R04.52 Portion of Formal IOT&E (Jul 2020) For-score testing of more complex open-air missions
    30R06.041 & .042 UOTT evaluated these versions in FY21 IAW a DOT&Eapproved FOT&E Test Plan
    30R06.042 Software fix needed for weapon event in Jun 2021 that completed events approved in Pre-IOT&E Increment 2
    30R07 UOTT completed their evaluation of this series of software in FY22 IAW a DOT&E-approved FOT&E Test Plan
    30R08 UOTT began flying with early versions of this software in August 2022. DOT&E approved four missile test events from the OT plan for 30R08; no other testing has been approved due to lack of readiness. No OT of 30R08 has been completed to date.
    TR-3 Block 4,
    40 Series     		40R0X Dedicated OT events are planned for each release of capability in the series
    Notes: ** The final planned version of Block 3F software was 3FR6.
    *** The program changed software nomenclature for the initial increments of Block 4 from “3F” used during SDD to “30RXX” for development and “30PXX” for fielding software. The 30 Series software is compatible with the Block 3F aircraft hardware configuration and is being used to address deficiencies and add Service-prioritized capabilities.
    Acronyms: C2D2 – Continuous Capability Development and Delivery; IAW – in accordance with; IOC – Initial Operational Capability; JOTT – JSF Operational Test Team; OUE – Operational Utility Evaluation; OT – operational test; SDD – System Development and Demonstration; TR-X – Technology Refresh [version #], referring to the suite of various avionics and supporting subsystems; UOTT – U.S. Operational Test Team



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