Power and Propulsion
Gas turbines

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Editorial
Propulsion

Sunset for the American V8

Technologies transition from dominance to nearly dead at different speeds and for various reasons. That’s particularly true for motive power. Pistons, cams and valves are giving way to anodes, cathodes and...

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Application Briefs
Motion Control

Turbine Rotor Assembly Systems

RPI UK has installed two integrated rotor measurement and assembly platforms (iMAPs) at Atlanta-based Delta Airlines;

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Articles
Materials

New Ampere EV Motor Aims for Power, Torque Benchmarks

Consider an EV traction motor rated at 220 kW and weighing 10 kg (22 lb). Is it too good to be true? “We’ll find out within nine months when we build it,” said Ian Foley,...

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Articles
Aerospace

Bringing Turbine Power to Small Aircraft

A regenerative, high-temperature heat exchanger doubles the efficiency of low-power turbines.

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Articles
Propulsion

Limiting Creep in Aerospace Materials

Creep is an especially important consideration for engineers designing jet engine turbines.

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Articles
Electronics & Computers

Microturbine Propulsion for UAVs

The continued use of reciprocating engines has limited the UAV market’s ability to reach its true growth potential.

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Articles
Energy

Powering Back to the Future

Credit Leonardo DaVinci for creating what many historians believe was the first depiction of a self-powered vehicle. It was powered by springs. And in the centuries since then, engineers have found...

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News
Propulsion

New Boeing, Safran Joint Venture Dedicated to Developing Aircraft Auxiliary Power Units

Chicago-based, Boeing Company and Safran S.A. of Paris are forming a joint venture to design, build, and service aircraft secondary power systems,...

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Briefs
Test & Measurement

Burner Rig Testing of A500® C/SiC

There is growing interest in developing, testing, and deploying ceramic-matrix composites (CMCs) into commercial and military aerospace gas turbine engines due to their durability under extreme conditions...

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News
Power

Developing an Alternative Engine Concept

As the transportation industry begins to enter the next stage of power sources, a wave of new options is becoming available to consumers. What was once an industry dominated by gasoline...

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Articles
Defense

Powering On

The steady rise in demand for high-thrust, big-fan engines for new wide-body commercial airplanes continues to generate massive business, as the 2015 half-year results from Rolls-Royce demonstrated. But at the same time,...

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Briefs
Mechanical & Fluid Systems

Rotating Detonation-Wave Engines

All Navy aircraft and missiles use gasturbine engines for propulsion. Many ships are also dependent on gasturbine engines to generate both propulsive power and electricity. These engines are fundamentally...

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Briefs
Photonics/Optics

Thermal Mechanical Fatigue Crack Growth Testing

Turbines in aircraft turbojet engines are being subject to increasingly higher temperatures to improve fuel efficiency. High turbine efficiency requires the ability of turbine blades to...

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Articles
Aerospace

Using Fiber Metal Abradable Seals in Aerospace Turbine Applications

Limiting leakage in aerospace turbo-machinery has been a focus of engineers ever since the advent of the turbine. An increasing number of companies are finding that fiber...

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Application Briefs
Defense

Gas Turbine Exhaust Recovery Design Improves Propulsion Efficiency

In January, Concepts NREC (CN) was awarded a Phase I Small Business Innovative Research (SBIR) grant from the Navy to improve the power efficiency of its gas turbine prime...

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Briefs
Mechanical & Fluid Systems

Film Cooling Using Pulsed Coolant

Turbine engine designers routinely use film cooling to cool engine components in the hot-gas flow-path. Film cooling is the process of injecting coolant fluid at one or more discrete locations along a...

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Briefs
Manufacturing & Prototyping

Strain-Induced Porosity Model

AFRL scientists developed advanced computer models to improve the processing and quality of titanium alloys used in manufacturing gas turbine engine parts and critical structural components for military...

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