08.02.2019
Sikorsky stays defiant over SB-1 helicopter prospects
![](https://vpk.name/file/img_tran/e7/xr/sikorskystaysde_757uyc_1549588286680874.t.jpg)
Sikorsky remains confident that the SB-1 Defiant helicopter it is jointly developing with Boeing can achieve a target speed of around 270kt (500km/h), even though the technology demonstrator is yet to leave the ground. ...