Abstract: The invention comprises a surrogate weapon for simulating the sound and flash of gunfire having a combustion chamber system in which a primary chamber is an elongated cavity, having a proximal end closed with a head and an open distal end. A combustible mixture is injected via electronically timed hydrocarbon fuel and oxidizer pulses into the combustion chamber near the closed end through an annular injector having a plurality of spaced apart fuel and oxidizer nozzles. The fuel nozzles are axially spaced from the oxidizer nozzles and are closer to the head. Thus the injected fuel/oxidizer charge is stratified with a fuel concentration distribution preferentially being richer at an ignition source near the head.

Abstract: The invention comprises a combined machine gun and large bore cannon weapons effects signature simulator having a rapid fire small bore methane and oxygen fired combustion chamber disposed within the combustion chamber of a large bore main tank gun weapons effects signature simulator and supplied from a common source of pressurized methane and oxygen.One embodiment includes the injection of ambient temperature oil into the large bore chamber prior to firing the combustible mixture to augment the flame content of the weapon signature.Another embodiment provides for the emission of hot oil vapor to augment the smoke content of the weapon signature.Yet another embodiment provides the machine gun simulator combustion chamber integral with and in intimate thermal contact with the wall of the large bore combustion chamber, whereby the machine gun combustion chamber utilizes the large bore combustion chamber wall to dissipate heat.

Abstract: A target system for laser marksmanship training devices is comprised of one or more photodetectors mounted on a target and sensitive to one or more pulses of the operating wavelength of a laser beam simulating the projectile of a weapon. An amplifier increases the power output of the photodetectors, and a frequency selective transducer is operated from the amplified output of the photodetectors. The transducer is attached and acoustically coupled to the target and produces a vibration signature simulating the vibration characteristics of a weapon-fired projectile striking the target. A microphone sensitive to the vibration signature of the transducer is acoustically coupled to the target, and a drive mechanism lowers the target out of the field of view of the weapon when the microphone receives a hit-indicating vibration signature from the transducer.

Abstract: A laser operated transmitter is attachable to the barrel of gun and comprises a battery operated power supply; a first, hit-code pulse generating circuit capable of driving a laser optical system and producing a beam simulating a projectile hitting a photodetector target system; and a second inhibit-code pulse generating circuit, synchronous with the hit-code pulse generating circuit, driving a light emitting diode and producing a hit-code inhibiting wide-angle beam aimed towards a photodetector target system worn by the shooter of the gun.

Abstract: A live ammunition optical simulator for a weapon disposed in a gun port and aimed through a separate view point. The simulator includes a visible light source, an infrared laser and a beam splitter located adjacent the view port and between the visible light source and the laser. The visible light source and the laser are oriented so that their respective beams lie along a common axis and strike opposing sides of the beam splitter. The laser beam is reflected by the beam splitter out of the view port to simulate the point of impact of a weapon projectile. The visible light beam is reflected by the beam splitter to a weapon user to provide a visual aiming cue simulating the path of a weapon projectile tracer. The weapon user, observing the scene shown in the view port through the beam splitter, can determine the point of impact of the laser beam by orienting himself so as to observe the visible light beam reflection in the beam splitter.