Referensi
- ↑ "Defiant's first flight falls behind". Flightglobal. 21 April 2017. Diakses tanggal 20 April 2017.
- ↑ Boeing and Sikorsky team up on US Army’s JMR – Flightglobal.com, 18 January 2013
- ↑ "Sikorsky, Boeing Partner for Joint Multi-Role Future Vertical Lift Requirements". PR Newswire. 18 January 2013. Diarsipkan dari asli tanggal 9 February 2013. Diakses tanggal 28 January 2013.
- ↑ Sikorsky and Boeing to pitch ‘X-2’-based design for US Army JMR TD effort – Flightglobal.com, 28 February 2013
- ↑ "Boeing-Sikorsky Team Emerges as Frontrunner After EADS Quits Army Helo Competition" (archived copy) – Nationaldefensemagazine.org, 14 June 2013.
- ↑ "Sikorsky Moves X2 Technology Up A Size For JMR" Aviation Week & Space Technology, 4 November 2013. Accessed: 22 June 2014. Archived on 22 June 2014.
- ↑ Boeing and Sikorsky Name New Rotorcraft Diarsipkan 2013-10-22 di Wayback Machine. – Aviationweek.com, 21 October 2013
- ↑ Drwiega, Andrew. "Sikorsky-Boeing Announces JMR Defiant Team" MilTechMag, 9 April 2015.
- ↑ "Salinan arsip". Diarsipkan dari asli tanggal 2020-09-28. Diakses tanggal 2022-02-06.
- ↑ Garrett Reim (9 Oct 2018). "Despite delays, SB-1 Defiant on track for 2018 first flight". Flightglobal.
- ↑ Mark Huber August 9, 2018. "Sikorsky Defiant Moves Closer To First Flight". AIN online. Pemeliharaan CS1: Nama numerik: authors list (link)
- ↑ Greg Waldron (27 Dec 2018). "SB-1 Defiant breaks cover". Flightglobal.
- ↑ Garrett Reim (31 Jan 2019). "SB-1 Defiant starts ground run tests ahead of first flight". Flightglobal.
- ↑ 1 DEFIANT™ Helicopter Achieves First Flight"},"publisher":{"wt":"Boeing"},"date":{"wt":"21 March 2019"}},"i":0}}]}' id="mwvQ"/>"Sikorsky-Boeing SB>1 DEFIANT™ Helicopter Achieves First Flight" (Press release). Boeing. 21 March 2019.
- ↑ "Defiant back in the air after 'bearing creep' issue found on test bed". Vertical Magazine. Diakses tanggal 2019-11-26.
- ↑ Judson, Jen (14 October 2020). "Watch the SB-1 Defiant coaxial demonstrator aircraft hit 230 knots". Defense News.
- ↑ "Defiant roars through flight test milestones in 2020". Vertical Magazine. 30 December 2020.