Model Airplanes

RENO, NEVADA, December 3, 2018 – Pratt Whitney Canada, a subsidiary of United Technologies Corp. (NYSE: UTX), today announced it has received approval from Transport Canada to increase cycle limits on its PT6A-140, -140A and -140AG engines. These increases – made possible through comprehensive parts testing and model analyses – will extend the life of Low Cycle Fatigue (LCF) parts such as the power and compressor turbine disks and the impeller.

“We are committed to exploring and developing innovative solutions that keep our customers flying longer and at reduced operating and maintenance costs,” said Nicholas Kanellias, Vice President, General Aviation at Pratt Whitney Canada. “For the vast majority of PT6A-140 series operators, these extensions will push the requirement to replace LCF parts further into the future.”

An engine cycle is counted every time an engine is started, flown and then shutdown. An abbreviated cycle is counted when an engine remains running between flights. The cycle limits for the PT6A-140-series engines have now been increased by up to 60 percent for the following parts: from 12,000 cycles to 16,000 cycles for the power turbine disk, from 10,000 cycles to 16,000 cycles for the compressor turbine disk and from 19,000 cycles to 29,000 cycles for the impeller. Also as it pertains to the power turbine disk, the number of abbreviated cycles needed to count as a full cycle has increased from two to five.

“These numbers tell a compelling story for the maintenance costs of the PT6A-140 engine series,” says Kanellias. “For PT6A-140-series

Article source: https://agairupdate.com/pratt-whitney-canada-receives-transport-canada-approval-for-significant-cycle-limit-increases-on-pt6a-140-engines-with-direct-benefits-for-broad-base-of-operators/

Since the first airplane took flight over 100 years ago, virtually every aircraft in the sky has flown with the help of moving parts such as propellers, turbine blades, or fans that produce a persistent, whining buzz.

Now MIT engineers have built and flown the first-ever plane with no moving parts. Instead of propellers or turbines, the light aircraft is powered by an “ionic wind” — a silent but mighty flow of ions that is produced aboard the plane, and that generates enough thrust to propel the plane over a sustained, steady flight.

Unlike turbine-powered planes, the aircraft does not depend on fossil fuels to fly. And unlike propeller-driven drones, the new design is completely silent.

“This is the first-ever sustained flight of a plane with no moving parts in the propulsion system,” says Steven Barrett, associate professor of aeronautics and astronautics at MIT. “This has potentially opened new and unexplored possibilities for aircraft which are quieter, mechanically simpler, and do not emit combustion emissions.”

He expects that in the near-term, such ion wind propulsion systems could be used to fly less noisy drones. Further out, he envisions ion propulsion paired with more conventional combustion systems to create more fuel-efficient, hybrid passenger planes and other large aircraft.

Barrett and his team at MIT have published their results today in the journal Nature.

Hobby crafts

Barrett says the inspiration for the team’s ion plane comes partly from the movie and television series, “Star Trek,” which he watched avidly as a kid. He was particularly drawn to the futuristic shuttlecrafts

Article source: http://news.mit.edu/2018/first-ionic-wind-plane-no-moving-parts-1121

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Carrier begins modernization of single-aisle airplane fleet with the first of five 737 MAXs

Fiji Airways will be first airline in the Pacific Islands to fly the more fuel-efficient 737

SEATTLE, Nov. 30, 2018 /PRNewswire/ — Boeing [NYSE: BA] delivered the first 737 MAX for Fiji Airways, which plans to use the fuel-efficient, longer-range version of the popular 737 jet to expand and modernize its single-aisle fleet.

“We are thrilled to take delivery of our very first 737 MAX 8, named Island of Kadavu,” said Andre Viljoen, Managing Director and CEO of Fiji Airways. “The introduction of the 737 MAX is the beginning of a new chapter for Fiji Airways and we look forward to taking advantage of the airplane’s superior performance and economics. These new airplanes will enable us to offer a world-class customer experience through the new Boeing Sky Interior cabins with in-seat entertainment for all guests.”

Fiji Airways plans to take delivery of five MAX 8 airplanes, which will build on the success of its fleet of Next-Generations 737s. The MAX incorporates the latest technology CFM International LEAP-1B engines, Advanced Technology winglets, and other airframe enhancements to improve performance and reduce operating costs.

Compared to the previous 737 model, the MAX 8 can fly 600 nautical miles farther, while providing 14 percent better fuel efficiency. The MAX 8 can

Article source: https://finance.yahoo.com/news/boeing-delivers-fiji-airways-first-210000599.html