List

To ensure continued access to orbit for United States government and commercial payloads, attractive replacement candidates for foreign-made propulsion components must be identified and the associated technology matured. The innovation proposed herein will identify and further maturation of a domestically available, oxidation-resistant, high-temperature C/SiC material candidate for launch vehicle ...

A novel hybrid acoustic emission (AE) and guided wave (GW) inspection approach for radar towers inspection is presented. Keeping aging radar sites (many are over 50 years old) in good repair is important because they are critical intelligence components that provide advanced aircraft notification. This proposed work will continue development of new, patent-pending shear-type AE sensors, and apply ...

Sudden structural failure caused by stress corrosion cracking (SCC) in aircraft components is becoming a severe safety threat to Air Force aircraft and other aviation vehicles. Detection of SCC often occurs late in the damage development cycle, in which fast-growing macroscale cracking has already developed. This significantly increases depot maintenance cost and can negatively impact aircraft ava ...

As threats emerge in geographically diverse locations, precision responses are often required immediately.However, the time-to-target for many munitions can be simply too long for short lived opportunities.To enable timely responses to long range threats, hypersonic munitions with velocities greater than Mach 5 are necessary.However, with hypersonic velocities comes a significant increase in the a ...

This phase 2 proposal builds upon Phase 1 successes, with plans for the construction of an electrochemical variable emissivity device (EC VED). The viability of this EC VED will be determined by the development of a new family of ionic liquid (IL) electrolytes featuring polyhedral boron cages as the anionic component. In these new electrolytes, the negligible vapor pressures and high ionic conduct ...

The feasibility of a small, rugged electronics and sensor package that will be installed within the housing of the Constant Speed Drive (CSD) will be determined.The Variable Reluctance sensor that is used will monitor the tooth-passing speed of an existing input shaft gear.The micro-controller within the electronics package will count the revolutions, and correlate the revolutions with statistics ...

Drone Aircraft New CER (DANCER) development addresses a rapidly evolving need for Air Force in the integration and operations of first strike UCAS drone aircraft, namely the operational and maintenance budgeting for these aircraft. Use as an extension of the J-35 strike fighters capabilities and force projection in deep and first strike missions could be critical in achieving air dominance over ad ...

Increasing energy costs have placed budget constraints on many branches of the military and has brought to the forefront the problem of reducing costs by maximizing energy efficiency. The Air Force currently heats many of its facilities with the use of steam-based HVAC systems and the overproduction of steam can exacerbate these internal costs. To optimize this steam production, the Air Force is s ...

Existing inspection techniques for corrosion detection and wall thickness monitoring on ICBM silo walls are highly inefficient. Guidedwave (FBS, Inc. d.b.a. Guidedwave) has developed a revolutionary guided wave phased array (GWPA) ultrasound technology for the efficient inspection of large-area structures for plate and weld defects. The patented GWPA technology performs rapid 360-degree volumetric ...

Welding of aerospace structural components is an expensive process due to high material cost of titanium alloys, energy consumption, and CO2 emissions. Linear friction welding (LFW) is a solid state process of joining materials together through frictional contact. Due its several advantages like absence of solidification defects and additional heat source, the technique is increasing attracting at ...