January 18–20, 2012 [2023-03-20]. (原始内容存档 (PDF)于2023-03-20). nominal grossweight of 5950 lb. Drew, James. ANALYSIS: Sikorsky seeks next leap in rotorcraft
where: m i {\displaystyle m_{i}} is the initial vehicle mass or the gross liftoff weight ( G L O W ) {\displaystyle \left(GLOW\right)} , m f {\displaystyle