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How does it work ? MCAS Boeing 737 Max System.

How does it work?

Boeing explains :

The Maneuvering Characteristics Augmentation System (MCAS) flight control enhanced flight control law incorporates angle of attack (AOA) inputs, limits stabilizer trim commands in response to an erroneous angle of attack reading and provides a limit to the stabilizer command in order to retain elevator authority..

A pitch augmentation control law (MCAS) was implemented on the 737 MAX to improve aircraft handling characteristics and decrease pitch-up tendency at elevated angles of attack. It was put through flight testing as part of the certification process prior to the airplane entering service. MCAS does not control the airplane in normal flight; it improves the behavior of the airplane in a non-normal part of the operating envelope.

Boeing’s 737 MAX Flight Crew Operations Manual (FCOM) already outlines an existing procedure to safely handle the unlikely event of erroneous data coming from an angle of attack (AOA) sensor. The pilot will always be able to override the flight control law using electric trim or manual trim. In addition, it can be controlled through the use of the existing runaway stabilizer procedure as reinforced in the Operations Manual Bulletin (OMB) issued on Nov. 6, 2018. 

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Boeing Statement about software

Boeing has been working closely with the Federal Aviation Administration (FAA) on development, planning and certification of the software enhancement, and it will be deployed across the 737 MAX fleet in the coming weeks. The update also incorporates feedback received from our customers.

The FAA says it anticipates mandating this software enhancement with an Airworthiness Directive (AD) no later than April. We have worked with the FAA in the development of this software enhancement.

It is important to note that the FAA is not mandating any further action at this time, and the required actions in AD2018-23.5 continue to be appropriate.

Lion Air Case report (Wiki)

On 7 November, the NTSC confirmed that there had been problems with Flight 610’s angle of attack (AoA) sensors. Thinking that it would fix the problem, the engineers in Bali then replaced one of the aircraft’s AoA sensors, but the problem persisted on the penultimate flight, from Denpasar to Jakarta. Just minutes after takeoff, the aircraft abruptly dived. The crew of that flight, however, had managed to control the aircraft and decided to fly at a lower than normal altitude. They then managed to land the aircraft safely and recorded a twenty-degree difference between the readings of the left AoA sensor and the right sensor.

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Aviation

Farnborough 2024: A Landmark Airshow Concludes with £81.5 Billion in Deals

Farnborough 2024: A Landmark Airshow Concludes with £81.5 Billion in Deals

As the 45th edition of the Farnborough International Airshow (FIA2024) concluded, it proved to be a tremendous success. The event, which ended yesterday, saw £81.5 billion worth of deals signed and 260 firm commercial aircraft orders placed within the first four days. For the UK alone, the deals announced amounted to £13 billion.

The Airbus A321XLR showcased an incredible aerial display at the airshow, becoming a centerpiece attraction. As Airbus’s latest addition to the market, the A321XLR aims to challenge the narrow-body aircraft segment with its extended range and innovative features. Additionally, Embraer impressed attendees with the E195-E2’s aerial display, highlighted by its striking black livery.

The ATR aircraft demonstrated its remarkable takeoff and landing capabilities, further showcasing its versatility. The Chinook helicopter also participated, displaying its impressive performance and ability to handle multi-level tasks, making it invaluable for defense and battlefield operations.

The show ended with an exhilarating final air display. The Starlings Aerobatic Team performed an impressive formation flight, while the Stampe Formation team showcased their vibrant heritage aircraft. The Royal Air Force’s F-35 flyover and the F-15QA’s powerful farewell flight added to the excitement. The British Army’s renowned Red Devils parachuted down, providing a spectacular closing to the event.

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Day 2 Highlights: Airbus, Boeing, and Embraer Orders at Farnborough International Airshow 2024 : Click here

With this year’s orders finalized, the focus on the fifth and final day of FIA2024 shifted to inspiring the next generation of pilots, engineers, manufacturers, and innovators. We eagerly anticipate seeing everyone again at the Farnborough International Airshow 2026.

Airbus Expands Reach with Major Orders

Airbus has secured two significant deals that will expand its presence in the global market. The Abra Group, aiming to enhance its international long-haul operations, signed a Memorandum of Understanding (MoU) for five A350-900 aircraft. Additionally, flynas, Saudi Arabia’s leading low-cost carrier, strengthened its partnership with Airbus by signing an MoU for 75 A320neo family aircraft and 15 A330-900s.

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Virgin Atlantic also made headlines by ordering seven additional A330neo aircraft. This order highlights the airline’s confidence in the A330neo’s performance and passenger comfort, as well as its commitment to sustainability. The advanced technology and fuel efficiency of the A330neo make it an ideal choice for Virgin Atlantic’s transatlantic operations, aligning with their goal of providing an enhanced and eco-friendly travel experience.

Embaer Aircraft

In a notable order, the Netherlands and Austria finalized a joint commitment for nine C-390 Millennium transport planes. Scheduled for delivery starting in late 2027, these aircraft will facilitate improved training and logistics collaboration among NATO partners. The C-390 Millennium continues to be a favored choice for European nations due to its exceptional performance and cost-effectiveness.

In the military aviation sector, Embraer announced a major order from the Paraguayan Air Force (FAP) for six A-29 Super Tucano aircraft. This versatile, multi-mission aircraft will enhance the FAP’s capabilities in armed reconnaissance, close air support, light attack, and advanced training missions.

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Boeing aircraft.

Boeing also had a notable presence on Day 2 of the airshow. Qatar Airways announced an order for 20 additional 777-9 airplanes, reinforcing its commitment to the 777X program. The 777-9, touted as the world’s largest and most fuel-efficient twin-engine jet, is set to play a crucial role in Qatar Airways‘ long-haul fleet expansion, offering increased passenger capacity and improved fuel efficiency.

In a significant move for the leasing sector, Macquarie AirFinance announced its first direct order with Boeing, purchasing 20 737-8 aircraft. This order not only doubles Macquarie AirFinance’s existing 737-8 order book, acquired from ALAFCO Aviation Lease and Finance Co.

De Havilland Aircraft orders

De Havilland Aircraft of Canada Limited also made strides with several announcements. ANA Holdings signed a letter of intent for seven reconditioned DHC Dash 8-400s, which will be reconfigured to integrate seamlessly with ANA Group’s current fleet.

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Additionally, Skyward Express ordered one Dash 8-400, while De Havilland confirmed the sale of two Dash 8-400s to Widerøe and one to the Tanzania Government Flight Agency (TGFA). De Havilland also announced a cargo conversion solution sale to Advantage Air, further expanding its portfolio and market reach.

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