![SB>1 DEFIANT helicopter achieved first flight March 21, 2019](https://avionews.it/resources/originals/4b0861aff0f5c9c8efa611f555460574.jpg)
Caption:
SB>1 DEFIANT helicopter achieved first flight March 21, 2019
Copyright:
Sikorsky and Boeing
It does not receive public funding
Editor in chief:
CLARA MOSCHINI
SB>1 DEFIANT helicopter achieved first flight March 21, 2019
Sikorsky and Boeing