Related by context. Frequent words. (Click for all words.) 62 unmanned underwater 59 Predator unmanned aerial 54 autonomous robotic 53 unmanned 53 autonomous underwater 52 REMUS 52 reconnaisance 52 highly manoeuvrable 52 minesweeping 51 UUV 51 UGVs 51 midair refueling 51 Technology Demonstrator 51 unpiloted 51 remotely piloted 51 highly maneuverable 50 advanced hypersonic engines 50 antisubmarine warfare 50 kg payload 49 AUVs 49 remotely operated 49 ballistic trajectory 49 VTOL 49 penetrating radar 49 Unmanned Aerial Vehicle UAV 49 MAVs 48 self propelled howitzer 48 Proton Breeze M 48 armored infantry 48 unmanned reconnaissance aircraft 48 antisubmarine 48 hypersonic flight 48 supersonic cruise missile 47 SLBM 47 scramjet engine 47 inertial guidance 47 reconnaissance 47 guided munitions 47 refuelers 47 propulsion 47 Synthetic Aperture Radar 47 heliborne 47 Defense THAAD 47 wheeled armored 47 armouring 47 tactical reconnaissance 47 Unmanned Aerial Vehicles UAVs 46 STANAG 46 SUGV 46 millimeter cannon 46 inertial navigation systems 46 reconnaissance drones 46 warships submarines 46 Minotaur IV 46 hypersonic speeds 46 CH #D 46 MQ 8B Fire 46 UCAV 46 Anti Submarine Warfare 46 Unmanned 46 Aegis radar 46 Altair lunar lander 46 MGV 46 Unmanned Aerial Vehicles UAV 46 laser altimeter 46 vehicles UAVs 46 hypersonic 46 UCAVs 45 X #B Orbital 45 HUMVEE 45 robotic spacecraft 45 Poisk 45 aicraft 45 Unmanned aircraft 45 Scramjet 45 interceptor 45 EKV 45 Remora 45 electric propulsion 45 Insurgents ambushed 45 KC #J 45 ramjet 45 Guided Missile 45 JSTARS 45 Dornier aircraft 45 pilotless plane 45 unpowered 45 resupply missions 45 Recce 45 SEAL Delivery 45 Driverless 45 robotic rovers 45 radar altimeter 45 airborne reconnaissance 45 Skyguard 45 RISAT 45 actuation systems 45 iRobot PackBot 45 VASIMR 45 Hyper X 45 Taurus XL