![A concept image of Sikorsky X2, on which SB-1 Defiant is based (Sikorsky Aircraft photo)](https://avionews.it/resources/originals/8aaaa365b7bad19be9da172d55a1b382.jpg)
Caption:
A concept image of Sikorsky X2, on which SB-1 Defiant is based (Sikorsky Aircraft photo)
Copyright:
Sikorsky Aircraft
It does not receive public funding
Editor in chief:
CLARA MOSCHINI
A concept image of Sikorsky X2, on which SB-1 Defiant is based (Sikorsky Aircraft photo)
Sikorsky Aircraft