Award Data

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THE OBJECTIVE OF THIS PROJECT IS TO INVESTIGATE SEVERAL TECHNOLOGIES WHICH, WHEN TAKEN TOGETHER IN A COMPLETE SYSTEM, PROVIDE THE CAPABILITY TO OBTAIN FLIGHT TEST DATA ON VERY LOW REYNOLDS NUMBER AIRFOILS AT ALTITUDES BETWEEN 11 AND 30 KM FOR COMPARISON WITH WIND TUNNEL AND ANALYTICAL INVESTIGATIONS. THE APPROACH IS TO DEVELOP AN AUTONOMOUS FLIGHT TEST VEHICLE HAVING A WING SPAN OF 5.9 METERS. SMA ...

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THE PRIMARY PURPOSE OF THIS PROJECT IS TO REDUCE THE REQUIREMENTS FOR INITIAL ALIGNMENT ACCURACY WHEN BRINGING A PAIR OF CONNECTORS TOGETHER PRIOR TO MATING THEM. THIS WILL BE ACCOMPLISHED BY INVESTIGATING THE USE OF A TAPERED OR CONICAL DESIGN TO INCLUDE A PRELIMINARY LATCHING FEATURE TO CAPTURE AND TO CAUSE ALIGNMENT OF A PAIR OF COMPLEMENTARY CONNECTORS. THE INVESTIGATION WILL TAKE INTO CONSIDE ...

THE ACCURATE PREDICTION OF THE PERFORMANCE OF A HELICOPTER ROTOR IN HOVER IS CRITICAL TO THE SUCCESS OF THE DESIGN. A NOVEL APPROACH TO THE SOLUTION OF THE HELICOPTER FREE WAKE HOVER PROBLEM IS ADDRESSED BY FINDING THE SELF-PRESERVING WAKE SHAPE WHICH IS STEADY IN BLADE-FIXED COORDINATES. THE SOLUTION CAN BE USED TO PREDICT THE AVERAGE PERFORMANCE OF ROTOR IN HOVER. THE SOLUTION OBTAINED BY AN INF ...

A NEWLY DEVELOPED POLYMER SYSTEM IS DESCRIBED THAT HAS THE UNIQUE PROPERTY OF EXPANDING WHEN CONVERTED FROM THE LIQUID (UNCURED) TO THE SOLID (CURED) STATE. COATINGS ON STEEL MADE FROM THIS CLASS OF MATERIALS SHOULD BE DESIRABLE BECAUSE THE POLYMER TO METAL BOND IS INTIMATE AND WOULD RESIST ATTACK BY SALT SPRAY AND OTHER CORROSIVE AGENTS. DESCRIBED IS A PROGRAM TO FORMULATE COATINGS, APPLY THEM TO ...

THE PRIMARY OBJECTIVE OF THIS PROGRAM IS TO DEVELOP A PHASE-LOCKED LASER DIODE ARRAY THAT CAN DELIVER OUTPUT POWER GREATER THAN 200 MW. THE DIODE SHOULD HAVE LONG LIFE AND BE CAPABLE OF MODULATED BANDWIDTHS GREATER THAN 500 MHZ. THE OUTPUT BEAM SHOULD BE ABLE TO BE COLLIMATED TO WITHIN ONE MILLIRADIAN SO THAT IT IS SUITABLE FOR LONG DISTANCE SPACE COMMUNICATION. THE PHASE I EFFORT INVESTIGATES TWO ...

A SERIES OF ELASTOMERIC SILICONES AND SILICONE-IMIDES WILL BE SYNTHESIZED AND SCREENED FOR APPLICATION AS SOLAR CELL ENCAPSULANTS IN PHOTOVOLTAIC ARRAYS TO BE DEPLOYED IN SPACE. KEY PHYSICAL PROPERTIES SUCH AS THE TENSILE MODULUS, OPTICAL ABSORBANCE OVER 300 NM-1100 NM, LONG-TERM STABILITY IN VACUUM UV, REFRACTIVE INDEX, AND THERMAL PROPERTIES AS WELL AS CHARGING AND FLAMMABLITY CHARACTERISTICS WI ...

AIRCRAFT GAS TURBINE ENGINES OPERATE AT SPEEDS RANGING FROM 10,000 TO 30,000 RPM. TO HARNESS THIS POWER AND TO OPERATE AT DESIRED OUTPUT SPEEDS, THE INDUSTRY RELIES ON THE USE OF HIGH SPEED TRANSMISSION SYSTEMS. AS POWERS AND SPEEDS OF THEENGINES ARE INCREASING, THE GEAR INDUSTRY HAS RESPONDED TO TO THESES NEW REQUIREMENTS WITH HIGHER QUALITY HARDWEAR, CLEANER STEELS, AND IMPROVED MANUFACTURING TE ...

IT IS PROPOSED TO DETERMINE THE FEASIBILITY OF USING A NONEQUILIBRIUM PLASMA JET, DEVELOPED AT AEROCHEM OVER THE PAST QUARTER CENTURY, AS A MEANS OF ENHANCING IGNITION AND FLAME STABILIZATION IN AIR-BREATHING ENGINES AND IN SUPERSONIC COMBUSTION. SPECIFICALLY, WE WILL DETERMINE; IF IGNITION OF LEAN OR LOW PRESSURE MIXTURES CAN BE MADE MORE RELIABLE; IF FLAME HOLDING LIMITS CAN BE BROADENED, E.G., ...