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Defense industry Exhaust systems Insulation Aerospace Failure modes and effects analysis (FMEA) Fuel consumption Govt/Defense

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Technical Paper

“Rigidization-on-Command”™ (ROC) Resin Development for Lightweight Isogrid Booms with MLI
2003-07-07
2003-01-2342
The “Rigidization-on-Command”™ (ROC™) resin development has focused on the development of resin systems that use UV light cure for rigidization. Polymeric sensitizers have been incorporated into the resin formulations to promote cure using Pen-Ray lamps and UV light-emitting diodes (LED's). Formulations containing the polymeric sensitizers were examined by FTIR and DSC. Complete cure was observed after 15 min. exposure with the Pen-Ray lamps. Performance of the Pen-Ray lamps and UV LEDs was thoroughly characterized. Thermal models were developed to optimize the performance of the of the MLI insulation thermal oven used for orbital cure of the boom. Results show that -12°C is the lowest temperature required for cure of the ROC™ resin systems.
Technical Paper

some development problems with Large Cryogenic Propellant Systems
1960-01-01
600022
HEAT TRANSFER causes loading and starting design problems in large missile systems powered by cryogenic propellants. This manifests itself during loading as effective density variation, violent surface conditions, boiloff, and ice formation — problems which may be solved by insulating the tank. During starting it causes overheating and caviation — effects which may be reduced by recirculators and subcooled charge injections. The study described in this paper centers around liquid oxygen and its variations in heat flux rate, which affect liquid density, surface condition, and replenishing requirements. The problem areas are made apparent by consideration of a hypothetical missile system.*
Technical Paper

X-29A Forward-Swept-Wing Flight Research Program Status
1987-11-13
872418
The X-29A aircraft is a fascinating combination of integrated technologies incorporated into a unique research aircraft. The X-29A program is a multiple-agency program with management and other responsibilities divided among the National Aeronautics and Space Administration (NASA), the Defense Advanced Research Projects Agency (DARPA), the U.S. Air Force, and the Grumman Corporation. This paper presents an overview of the recently completed X-29A flight research program, the objectives achieved to date, and a discussion of the future of the flight research program. Also discussed are the flight test approach expanding the envelope, typical flight maneuvers performed, X-29A program accomplishments, lessons learned for the Number One aircraft, and future plans with the Number Two aircraft. A schedule for both the Number One and Number Two aircraft is presented.
Standard

Wiring, Positioning, and Support Accessories
2010-05-12
HISTORICAL
AS23190A
AS23190 is a procurement specification that covers a series of plastic and metal components and devices used for the tying, positioning, and supporting cable, cable assemblies, wire, and wire bundles in electrical, electronic and communication equipment, and in interconnection systems.
Standard

Wiring, Positioning, and Support Accessories
2012-03-07
HISTORICAL
AS23190B
AS23190 is a procurement specification that covers a series of plastic and metal components and devices used for the tying, positioning, and supporting cable, cable assemblies, wire, and wire bundles in electrical, electronic and communication equipment, and in interconnection systems.
Standard

Wiring, Positioning, and Support Accessories
2020-11-03
CURRENT
AS23190D
AS23190 is a procurement specification that covers a series of plastic and metal components and devices used for the tying, positioning, and supporting cable, cable assemblies, wire, and wire bundles in electrical, electronic, and communication equipment, and in interconnection systems.
Standard

Wiring, Positioning, and Support Accessories
2015-10-01
HISTORICAL
AS23190C
AS23190 is a procurement specification that covers a series of plastic and metal components and devices used for the tying, positioning, and supporting cable, cable assemblies, wire, and wire bundles in electrical, electronic and communication equipment, and in interconnection systems.
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