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*If successful, this technique will mean more efficient helicopter production in larger numbers.<!--ref name= sb1 /-->
*If successful, this technique will mean more efficient helicopter production in larger numbers.<!--ref name= sb1 /-->
*The 2nd manufacturer's prototype December 2018 attempts to first reach 15 hours of reliable ground performance resulted in fixes that affected its fit, form, and function; hence its first flight is expected in 2019;<!--ref name= defiant2019 --> its First flight has occurred.  
*The 2nd manufacturer's prototype December 2018 attempts to first reach 15 hours of reliable ground performance resulted in fixes that affected its fit, form, and function; hence its first flight is expected in 2019;<!--ref name= defiant2019 --> its First flight has occurred.  
**Tyler Rogoway and Joseph Trevithick [https://www.thedrive.com/the-war-zone/27098/watch-sikorsky-and-boeings-sb1-defiant-compound-helicopter-fly-for-the-first-time (21 March 2019) Watch Sikorsky And Boeing's SB>1 "Defiant" Compound Helicopter Fly For The First Time)]<!--ref></ref-->
Tyler Rogoway and Joseph Trevithick [https://www.thedrive.com/the-war-zone/27098/watch-sikorsky-and-boeings-sb1-defiant-compound-helicopter-fly-for-the-first-time (21 March 2019) Watch Sikorsky And Boeing's SB>1 "Defiant" Compound Helicopter Fly For The First Time)]<!--ref></ref-->
**Sean Gallagher [https://arstechnica.com/information-technology/2019/03/sikorsky-boeing-joint-effort-for-armys-assault-aircraft-program-makes-first-flight/ (3/22/2019) Sikorsky-Boeing joint effort for Army's assault aircraft program makes first flight]
Sean Gallagher [https://arstechnica.com/information-technology/2019/03/sikorsky-boeing-joint-effort-for-armys-assault-aircraft-program-makes-first-flight/ (3/22/2019) Sikorsky-Boeing joint effort for Army's assault aircraft program makes first flight]
*Sydney J. Freedberg Jr.— The tiltrotor Joint Multi-Role Technology Demonstrator has attained ADS-33 Level 1 responsivenes in internal vendor testing [https://breakingdefense.com/2019/05/fvl-bell-v-280-meets-army-standard-for-agility/ (21 May 2019) V-280 Passes Key Agility Test: Bell]
*Sydney J. Freedberg Jr.— The tiltrotor Joint Multi-Role Technology Demonstrator has attained ADS-33 Level 1 responsivenes in internal vendor testing [https://breakingdefense.com/2019/05/fvl-bell-v-280-meets-army-standard-for-agility/ (21 May 2019) V-280 Passes Key Agility Test: Bell]
*ADS-33: Mark B. Tischler, Christina M. Ivler, M. Hossein Mansur, Kenny K. Cheung, Tom Berger, and Marcos Berrios [https://nams.usra.edu/NAMS/assets/AFDD/RAeS_2008_Tischler.pdf (4 November 2008) Handling-Qualities Optimization and Trade-offs in Rotorcraft Flight Control Design]{{Dead link|date=October 2022 |bot=InternetArchiveBot |fix-attempted=yes}}</ref> The tilt-rotor FLRAA demonstrator by Bell is flying unmanned (October 2019); it logged 100 hours of flight testing by April 2019.<ref name=FvlTests20191015>Sydney J. Freedberg Jr. [https://breakingdefense.com/2019/10/4-flights-3-hours-20-knots-boeings-defiant-inches-ahead/ (15 October 2019) 4 Flights, 3 Hours, 20 Knots: Defiant Inches Ahead]</ref> Both Bell and [[Boeing Rotorcraft Systems|Sikorsky-Boeing]] received contract awards to compete in a risk reduction effort (CDRRE) for FLRAA in March 2020.<ref name=flraaCdrre>Jen Judson [https://www.defensenews.com/land/2020/03/16/army-selects-companies-to-continue-on-in-long-range-assault-aircraft-competition/ (16 Mar 2020) Army selects companies to continue in long-range assault aircraft competition]</ref><ref name=FvlTests20191015 /><ref name=flrraData>Sydney J. Freedberg Jr. [https://breakingdefense.com/2020/02/weve-got-enough-data-on-defiant-sikorsky-boeing/ (20 February 2020) We’ve Got Enough Data On Defiant: Sikorsky & Boeing]</ref> The risk reduction effort will be a 2-phase, 2-year competition. The competition will transition technologies (powertrain, drivetrain and control laws) from the previous demonstrators (JMR-TDs) of 2018–2019 to requirements, conceptual designs, and acquisition approach for the weapon system.<ref name=flraaCdrre /><ref name=FvlBreakComanche>Sydney J. Freedberg Jr. [https://breakingdefense.com/2020/02/will-future-vertical-lift-fail-like-comanche/ (26 February 2020) FVL: Can Army Break The Comanche Curse?]</ref> The Army wants flight testing of FLRAA prototypes<ref name= 13oct22>Jen Judson [https://www.defensenews.com/digital-show-dailies/ausa/2022/10/13/us-army-nearly-ready-to-make-future-long-range-assault-aircraft-award/ (13 Oct 2022) US Army nearly ready to make future long-range assault aircraft award]</ref> beginning in 2025, with fielding to the first units in 2030.<ref name=flraa2030>Jen Judson [https://www.defensenews.com/land/2021/07/12/us-army-triggers-future-long-range-assault-aircraft-competition/ (12 Jul 2021) US Army triggers competition for future long-range assault aircraft]</ref>
*ADS-33: Mark B. Tischler, Christina M. Ivler, M. Hossein Mansur, Kenny K. Cheung, Tom Berger, and Marcos Berrios [https://nams.usra.edu/NAMS/assets/AFDD/RAeS_2008_Tischler.pdf (4 November 2008) Handling-Qualities Optimization and Trade-offs in Rotorcraft Flight Control Design]{{Dead link|date=October 2022 |bot=InternetArchiveBot |fix-attempted=yes}}</ref> The tilt-rotor FLRAA demonstrator by Bell is flying unmanned (October 2019); it logged 100 hours of flight testing by April 2019.<ref name=FvlTests20191015>Sydney J. Freedberg Jr. [https://breakingdefense.com/2019/10/4-flights-3-hours-20-knots-boeings-defiant-inches-ahead/ (15 October 2019) 4 Flights, 3 Hours, 20 Knots: Defiant Inches Ahead]</ref> Both Bell and [[Boeing Rotorcraft Systems|Sikorsky-Boeing]] received contract awards to compete in a risk reduction effort (CDRRE) for FLRAA in March 2020.<ref name=flraaCdrre>Jen Judson [https://www.defensenews.com/land/2020/03/16/army-selects-companies-to-continue-on-in-long-range-assault-aircraft-competition/ (16 Mar 2020) Army selects companies to continue in long-range assault aircraft competition]</ref><ref name=FvlTests20191015 /><ref name=flrraData>Sydney J. Freedberg Jr. [https://breakingdefense.com/2020/02/weve-got-enough-data-on-defiant-sikorsky-boeing/ (20 February 2020) We’ve Got Enough Data On Defiant: Sikorsky & Boeing]</ref> The risk reduction effort will be a 2-phase, 2-year competition. The competition will transition technologies (powertrain, drivetrain and control laws) from the previous demonstrators (JMR-TDs) of 2018–2019 to requirements, conceptual designs, and acquisition approach for the weapon system.<ref name=flraaCdrre /><ref name=FvlBreakComanche>Sydney J. Freedberg Jr. [https://breakingdefense.com/2020/02/will-future-vertical-lift-fail-like-comanche/ (26 February 2020) FVL: Can Army Break The Comanche Curse?]</ref> The Army wants flight testing of FLRAA prototypes<ref name= 13oct22>Jen Judson [https://www.defensenews.com/digital-show-dailies/ausa/2022/10/13/us-army-nearly-ready-to-make-future-long-range-assault-aircraft-award/ (13 Oct 2022) US Army nearly ready to make future long-range assault aircraft award]</ref> beginning in 2025, with fielding to the first units in 2030.<ref name=flraa2030>Jen Judson [https://www.defensenews.com/land/2021/07/12/us-army-triggers-future-long-range-assault-aircraft-competition/ (12 Jul 2021) US Army triggers competition for future long-range assault aircraft]</ref>
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