Race car simulator
Racecar simulator and driver training system and method
Radar signal simulator
Radar signature simulator
Radar simulation for use with a visual simulator
Radar target generator
Radar target simulator
Radiation demonstration system
Radiation shielding and range extending antenna assembly
Radio control transmitter
Radio controlled model pilot's station
Radio-controlled teaching device
Raised character display structure
Random problem generator
Rapid automatized naming method and apparatus
Rapid automatized naming method and apparatus
Raster shifting delay compensation system
Re-usable writing surface
Reaction test
Reaction time enhancer for training firearm aiming