Abstract: A decoy device for deployment in a marine environment to decoy heat seeking issiles from their intended target. The device consists of a canister of fuel and means for igniting the fuel. The canister is designed such that the operation of the device creates a spray of burning fuel and a resultant large radiation area decoy.

Abstract: A detonation initiator for use in explosive warheads to cause dual-end ination of the explosive within the warhead. An initiation transfer tube positioned interiorly and centrally within the warhead explosive contains a primary ignitor attached to a plurality of explosive trains leading to secondary ignitors. Booster plates positioned at either end of the explosive charge and adjacent the secondary ignitors detonate the explosive at either end causing the detonating front to travel toward the center of the explosive causing a great force to extend radially outward centrally from either end of the explosive. An initiation transfer tube positioned concentric with the explosive provides for an explosive output initiating from a single point at the center of the warhead to its ends without destroying or damaging the warhead.

Abstract: A passive direction finding system incorporating at least one set of spacapart antennas, the incoming signal at one antenna being coupled through a delay line having a multiplicity of taps thereon, a plurality of channels equal in number to the number of delay taps and signal processing means coupled to the output of said channels, a reference channel coupled to the output of the other antenna, phase shifting means for varying the phase of the reference channel signal, a frequency modulated oscillator which provides an output signal that is beat against the outputs of the delay line and the output of the second antenna, and a correlator coupled to the output of the channels for determining when correlation exists between a signal from the first antenna and the second antenna to indicate direction of an incoming signal with respect to the baseline between the set of antennas.

Abstract: A variable force control system for weapon ejection mechanisms wherein vable ejection forces are applied after measurement of inflight aerodynamic forces on the weapon and thereupon selecting power from one or more fluid power sources of equal or unequal volume and equal or unequal pressure to effect movement of a fixed stroke power piston.

Abstract: A frequency agile optical radar system including a frequency agile laser rce coupled with an extra-cavity dispersive element in such a manner as to radiate into space specific optical frequencies correlated with specific elevation angles measured from the horizontal. Laser radiation reflected from an object in space is detected by a staring detector system and the wavelength of the reflected optical energy determined therefrom. The elevation angle of the object in space is correlated with the optical frequency determination and coupled together with target range and aximuth angle so that the position and range to an object in space may be determined.

Abstract: A weather modification cartridge dispenser for automatically igniting and spensing pyrotechnic weather modification rounds wherein the dispenser is basically a motor driven automatic spring powered gun.

Abstract: Fluidic combustion control of a ramjet by injecting a fluid into the base recirculation region to reduce the critical injection parameter, or to shut down the ramjet without affecting the hot air flow.

Abstract: 2-Keto-6,7,8,9-tetrahydro-2H-pyrano(3,2-g)-quinoline and 2-keto-9-methyl-,8,9-tetrahydro-2H-pyrano(3,2-g)-quinoline, compounds useful as laser dyes, are prepared from 7-hydroxy-1,2,3,4-tetrahydroquinoline.

Abstract: The overall efficiency of a reaction engine having primary and secondary combustion chambers is greatly improved by reducing the primary exhaust velocity to subsonic speed. This is accomplished in a preferred embodiment by using an exhaust tube downstream of the primary nozzle. A tube diameter of about six times that of the primary throat diameter and a tube length of about five to ten times that of the tube diameter is considered optimum.

Abstract: A method and apparatus is provided for production of ice nuclei by generation of homogenous nuclei in nozzle or orifice expansions. The homogeneous nuclei are formed in the rapid cooling of vapors by rapid expansion through a supersonic nozzle or an orifice. These nuclei then serve as seeding materials for formation of ice.A preferred method of carrying out the invention includes heating a volatile compound in a closed chamber to form a vapor, pressurizing the chamber with nitrogen gas and controllably releasing the resulting nitrogen gas-vapor combination through a nozzle or orifice in supersonic flow.

Abstract: A gated waveform generator programmable to produce an output having a preermined number of cycles. A triggering pulse and the output from a zero-crossing detector are connected to different inputs of a bistable multivibrator. The triggering pulse causes the cyclic input signal to be applied to the zero-crossing detector so that the output of the bistable multivibrator is pulse coincident with a mode of the input signal. The outputs of the zero-crossing detector and the bistable multivibrator are connected to a monostable multivibrator having a period controlled by a timing network which determines the number of cycles in the output of the signal sources. Upon the occurrence of its first mode after the triggering pulse, the input signal is coupled for the determined time to an operational amplifier from which the output of the signal source is taken.

Abstract: Synthetic routes to 2,3,7,8-tetraazaspiro[4,4]nonane, its bispicrate salt, 2,3,7,8-tetraazaspiro [4,4]nona-2,7-diene, and 3,8-dicarbomethoxy:2,3,7,8-tetraazaspiro[4,4]nona-1,6-diene. Thecompounds are useful as high density fuels.

Abstract: A method and system for reducing the critical injection parameter (h/D.su) in a solid fuel ramjet (SFRJ) by using a low h/D.sub.p fuel within the recirculation region of the grain and a higher h/D.sub.p fuel for the majority of the grain to reduce the injector pressure drop, allow higher chamber pressure and higher performance and achieve flame stabilization.

Abstract: A scanning spectrophotometer employes fixed optics to produce a dispersion f optical energy. The dispersed optical energy is scanned by a fixed position surface acoustic wave photoelectric transducer. The scan rate of the surface acoustic wave photoelectric transducer is determined by associated electronic circuitry to produce scan rates permitting real-time spectral measurements from a moving platform.

Abstract: Hydroxy terminated polybutadiene is reacted with naphthyl-potassium and 1omo-2,4-pentadiene in successive steps to form a bis(1,3-pentadienyl ether) derivative. Then the bismaleimide of dimer diamine is added to the polybutadiene derivative whereby a room temperature cure to an elastomer is achieved.

Abstract: The invention disclosed is a device capable of sensing and recording the al thermal energy received by an object in a given location. The device can sense the energy received from any direction by any source of thermal energy. The sensors are attached to a recorder so that variations over time can be observed.

Abstract: A laser using electrogenerated chemiluminescence wherein an organic dye lasing solution is made to flow through or over alternately charged electrodes to charge the dye molecules which are then hydrodynamically diffused to maximize the production of excited molecules, for stimulated emission.

Abstract: Automatic sway brace mechanism for restraining stores mounted on an aircraft. Cam actuated paired sets of sway braces terminating in store engaging pads are arranged to provide a positive self-centering force equalization arrangement wherein said sway brace mechanism is automatically moved from a retracted to a store engaging position and back to a retracted position under positive control.

Abstract: A stationary blast diffuser for a Gatling type gun incorporating a ball bing gas seal at the front of the barrel cluster, resulting in a reduced dispersion pattern, the ball bearing gas seal being configured to allow the barrel cluster to rotate and reciprocate with respect to the rigid support structure.

Abstract: Stripe-domain light deflectors are used within a lasing cavity. Magnetic trol of the deflectors permits tuning of the laser light to any wavelength in the range of light present.