Northrop Grumman, Yamaha Announce 'R-Bat' UAV
Northrop Grumman will offer the R-Bat unmanned rotorcraft based on Yamaha's RMax. (Photo: Northrop Grumman)
Northrop Grumman will offer the R-Bat unmanned rotorcraft based on Yamaha's RMax. (Photo: Northrop Grumman)