Turbofan

July 14, 2014 - 7:50am
Titanium-aluminide low-pressure turbine blades and proposed cooling arrangements on Rolls-Royce’s proposed future UltraFan engine may owe much to the RB3025 powerplant unsuccessfully offered to power the Boeing 777X. For example, the RB3025 featured a “vortex amplifier” to simplify turbine-blade cooling with HPC air.

New engines planned by Rolls-Royce (R-R) reflect recent powerplant trends, including steadily increasing propulsive efficiency obtained with larger-diameter fans, higher bypass ratios and smaller engine cores. The engines could power updated contemporary widebody platforms, with R-R civil large engines president Eric Schulz confirming “very live” discussions with Airbus. “If it decides to re-engine the A330 or A380, we will be here to provide support,” he said during a pre-show briefing.

July 14, 2014 - 6:20am
Pratt & Whitney expects to gain certification of the first version of the PW1100G for the Airbus A320neo during this year’s fourth quarter.

While calling extending its geared turbofan engine family’s thrust rating by another 2,000 pounds “a big deal,” Pratt & Whitney next-generation product family vice president Bob Saia sees still bigger things in the company’s future, including what he called an Advanced GTF that could rival an open-rotor design in fuel efficiency by the middle of the next decade. For now, though, Saia finds himself “busy as a bee” with the five core programs already under way at the U.S. company.

July 14, 2014 - 5:45am

Japan’s Technical Research and Development Institute (TRDI) has released images and footage of the ATD-X (advanced technology demonstrator-experimental), following the appearance of a privately taken blurred image a few weeks ago.

Made public this weekend, the new images were taken on May 14 and show the aircraft being moved out of the paint shop, resplendent in TRDI’s house colors and bearing the serial 51-0001. In April, Japan’s defense minister, Itsunori Onodera, told journalists that the ATD-X is scheduled to fly this year.

July 14, 2014 - 1:40am

The technology stakes are high for the GE9X engine that will power Boeing’s new 777X twinjet, but GE Aviation believes its big bet on the weight savings to be delivered by unprecedented use of composites is about to pay off. The U.S. engine maker, which currently holds orders for some 600 of the engines, is leaving nothing to chance and, with more than two years of technology maturation behind it, the company is now stepping up its test program en route to certification in 2018.

July 14, 2014 - 1:15am

The past few years have not been easy for Mitsubishi Aircraft Corporation, the company’s product marketing director Noriyoshi Saito indicated yesterday here at the Farnborough International Airshow. The Japanese manufacturer is nevertheless proudly displaying a cabin mockup of its long delayed Mitsubishi Regional Jet (MRJ).

July 14, 2014 - 12:40am

Engine manufacturer CFM International announced yesterday here at Farnborough International 2014 that American Airlines has selected its Leap-1A turbofan engine to power 100 Airbus A320neos. At list price, CFM values the engine order at $2.6 billion. The aircraft order was originally announced in July 2011 and American will begin taking delivery of the aircraft in 2017.

July 14, 2014 - 12:30am

Textron AirLand’s new Scorpion tactical jet is making its international debut here in the UK. The clean-sheet design attracted curious onlookers last week at the Royal International Air Tattoo (RIAT) in Fairford, UK, including among them Gen. Mark Welsh, U.S. Air Force chief of staff. This week, the jet can be seen on static display at the Farnborough International Airshow through Thursday.

July 11, 2014 - 6:15am
A mockup of an open-rotor engine has been tested in an Onera wind tunnel since 2010; a full demonstrator is due to run in 2016.

As preparations continue for running a full open-rotor engine demonstrator in 2016 under Europe’s Clean Sky research effort, French engine maker Snecma (Hall 4 Stand B12) sees the program’s participants reaching a consensus as whether or not to proceed in the 2017-to-2019 time frame. Clean Sky, which also involves Airbus, Rolls-Royce and French research center Onera, has provided a relatively unexpected discussion platform, thus facilitating a general agreement.

July 11, 2014 - 6:00am
The Leap-1B, set to power the Boeing 737 Max, ran for the first time in mid-June. Eleven miles of carbon fiber is needed to weave a single Leap fan blade.

By the end of the year, CFM (OE 22) plans to have put together and tested around 20 Leap-1A/B/C turbofans, in preparation for their first flights next year and in 2016 on their respective application airframes. The Franco-American engine manufacturer is also gearing up for a swift production ramp-up, planned to reach an annual 1,700 engines by the end of the decade. The Leap will power the Airbus A320neo (Leap-1A), the Boeing 737 Max (Leap-1B) and Comac C919 (Leap-1C) narrowbodies.

July 6, 2014 - 3:35am

Mitsubishi Aircraft took delivery early last month of its first Pratt & Whitney PurePower PW1200G geared turbofan at the Mitsubishi Regional Jet’s (MRJ) final-assembly factory in Aichi Prefecture, Japan. Delivery of the engine from Pratt & Whitney’s Mirabel Aerospace Center in Quebec marks a major milestone toward final assembly of the first MRJ90 flight-test aircraft, which Mitsubishi expects to fly during next year’s second quarter.

 
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