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坐飞机当然要靠窗啦!你说啥?这架飞机是全透明的??
3 6 Ke· 2025-08-03 11:02
Core Points - The article discusses the experience of flying in an airplane, particularly focusing on the importance of window seats and the potential health risks associated with UV exposure at high altitudes [3][5][9]. Group 1: Airplane Design and Features - The introduction of pressurized cabins in the 1940s allowed airplanes to fly at higher altitudes, reducing turbulence and fuel consumption [9]. - Modern aircraft utilize a "semi-monocoque" structure to withstand pressure differences at high altitudes, with windows designed to endure significant pressure [9][10]. - The window dimensions on aircraft, such as the Airbus A320, are approximately 36 cm by 27 cm, and they can withstand around 300 kg of pressure at cruising altitude [9]. Group 2: Health Considerations - Research indicates that pilots and flight attendants have a melanoma incidence rate twice that of the general population, primarily due to UV exposure during flights [3]. - Despite the higher UV exposure, the melanoma rate in China is among the lowest globally, attributed to various factors including skin type and environmental conditions [3]. Group 3: Future Trends in Aviation - There is a trend towards replacing traditional windows with screens or VR technology in future aircraft designs, which has met resistance from window seat enthusiasts [14][15]. - The Boeing 787 features larger windows, nearly double the size of other models, due to advancements in composite materials, but still faces design challenges related to structural integrity [14].
现金流优于预期 小摩维持波音(BA.US)债券“增持“评级
Zhi Tong Cai Jing· 2025-07-31 08:41
Core Viewpoint - Boeing's second-quarter performance exceeded expectations due to improved operational efficiency and increased commercial aircraft deliveries, with cash flow surpassing company guidance [1] Group 1: Financial Performance - Boeing's second-quarter results were bolstered by operational efficiency and a rise in commercial aircraft deliveries [1] - The company reported a free cash flow of approximately -$200 million in the second quarter, excluding DOJ payments, and expects third-quarter free cash flow to be similar [1] - Boeing anticipates a full-year free cash flow of -$3 billion for 2025, better than market expectations of -$3.4 billion, which includes a $700 million payment to the U.S. Department of Justice [1] Group 2: Production and Delivery - The production rate for the 737 reached 38 aircraft per month in the last quarter, with plans to stabilize this rate at 42 aircraft per month by late 2025, pending FAA approval [1] - Boeing believes it can exceed the initial delivery forecast of 400 aircraft for the 737 beyond 2025 [1] - The production rate for the 787 has recently increased from 5 aircraft per month to 7 aircraft per month [1] Group 3: Market and Trade Considerations - JPMorgan maintains an "overweight" rating on Boeing bonds, citing increased backlog orders and favorable treatment of the aerospace and defense industry in current trade negotiations [1] - The company feels more optimistic about tariff costs, previously estimating annual tariff-related costs to be below $500 million [1] - Long-term fair value for Boeing's 30-year bonds is considered to be T+100 basis points, as the company's credit profile is expected to improve over time [1]
印航空难报告提及波音燃油开关 全球多家航司紧急检测
news flash· 2025-07-16 10:09
Core Viewpoint - Following the investigation of an Indian airline crash that mentioned Boeing's fuel switch, multiple airlines worldwide are conducting urgent inspections of various Boeing aircraft models' fuel switches [1] Group 1 - The investigation revealed that the U.S. Federal Aviation Administration (FAA) had issued a non-mandatory recommendation in 2018 for operators of Boeing 787 and other models to check the locking function of fuel switches to prevent accidental position changes [1]
多国航企紧急检测波音飞机燃油开关锁
news flash· 2025-07-16 09:16
Core Viewpoint - Multiple airlines are conducting urgent inspections of Boeing aircraft fuel switch locks following an investigation into an accident involving an Indian airline's Boeing aircraft [1] Group 1 - The Indian Directorate General of Civil Aviation has instructed all airlines in the country to conduct emergency checks on the fuel switches and locking systems of Boeing 787 and 737 aircraft by July 21 [1]
波音787空难原因揭晓,确实很“印度”
Guan Cha Zhe Wang· 2025-07-15 01:23
Core Viewpoint - The Indian aviation authority has mandated an urgent inspection of certain Boeing aircraft following a tragic accident involving an Air India flight, raising concerns about Boeing's safety and quality issues [1][2][4]. Group 1: Accident Details - On June 12, an Air India flight from Ahmedabad to London crashed shortly after takeoff, resulting in 241 fatalities out of 242 passengers, with 19 additional casualties on the ground [1]. - The crash is noted as one of the deadliest aviation disasters in the past decade and the first involving the Boeing 787 "Dreamliner" [1]. Group 2: Investigation Findings - The preliminary report from the Indian Aircraft Accident Investigation Bureau (AAIB) indicated that the aircraft's landing gear did not retract properly after takeoff, which is against standard procedures [4][6]. - The report confirmed that the aircraft's flaps were set to the correct position for takeoff, contradicting initial assumptions about flap retraction issues [4][6]. - Critical data from the black box revealed that the fuel control switches for both engines were switched from "Run" to "Cutoff" shortly after takeoff, leading to a rapid decrease in engine thrust [7][8]. Group 3: Potential Causes - The investigation has not definitively concluded whether the fuel switches were turned off due to mechanical failure, human error, or other factors [8][12]. - The design of the fuel control switches includes multiple safety features to prevent accidental operation, raising questions about how they were turned off [9][12]. - Preliminary findings suggest that the switches may have been manually turned off, but the exact circumstances remain unclear [13][14]. Group 4: Public and Industry Reaction - The initial report has sparked controversy in India, with public opinion suggesting that it too quickly absolves Boeing of responsibility [14][15]. - Critics argue that the report lacks sufficient evidence and transparency, as it does not provide original black box data or cockpit recordings to support its conclusions [14][15].
市场消息:印度民航总局(DGCA)即将下令各航空公司检查波音(BA.N)787机队的燃油开关锁定机制。
news flash· 2025-07-14 06:48
Group 1 - The Indian Directorate General of Civil Aviation (DGCA) is set to mandate airlines to inspect the fuel switch locking mechanism of Boeing 787 fleets [1]
失事客机双发一秒内被关闭,调查显示大概率人为因素引发印航空难
Hua Xia Shi Bao· 2025-07-12 11:37
Core Insights - The preliminary report from the Indian Aircraft Accident Investigation Bureau (AAIB) regarding the Air India 787-8 crash on June 12 reveals critical operational failures during takeoff, specifically the simultaneous shutdown of both fuel control switches within one second, leading to engine power loss [2][5][6] Investigation Findings - The report includes background information, personnel casualties, weather data, flight recorder details, and the current status of the investigation [2] - The aircraft was carrying 230 passengers and 12 crew members, and the crash resulted in 12 crew members, 229 passengers, and 19 ground personnel fatalities, marking it as one of the deadliest aviation disasters in a decade [7] - The flight data indicates that the fuel control switches were switched from "RUN" to "OFF" in a critical phase of flight, which is unusual and raises questions about operational protocols [3][5] Technical Analysis - The design of the fuel control switches on the Boeing 787 requires a specific action to change states, making accidental simultaneous operation unlikely [3][4] - The aircraft was equipped with two enhanced flight data recorders, which provided valuable data despite some damage [3][5] - The investigation has ruled out bird strikes as a cause, as there were no signs of bird activity in the flight path [5] Industry Impact - The crash has significant implications for Boeing, which has faced challenges in rebuilding its reputation following previous incidents, including the 737 MAX crisis [8][9] - The incident occurred just before the 2025 Paris Air Show, leading to cancellations of Boeing's planned activities at the event, which typically serves as a platform for showcasing new products and technologies [7][8] - Air India, under Tata Group's ownership, has ambitious plans to modernize its fleet, including a substantial order for 470 aircraft, which aims to enhance its competitive position in the market [9][10] Market Context - Air India is currently the largest airline in India by fleet size, with a total of 191 aircraft, including 33 Boeing 787s, positioning it favorably for long-haul operations [9][10] - The Indian aviation market has significant growth potential, but local airlines have historically struggled against foreign competitors, highlighting the need for improved competitiveness and brand image [10]
海航航空集团参加巴黎航展 与全球航空产业合作伙伴深入交流
Core Viewpoint - HNA Group is actively seeking to enhance cooperation with global aircraft manufacturers and suppliers during the 55th Paris Air Show, focusing on high-quality development and operational efficiency [1][2][5]. Group 1: Cooperation and Development - HNA Group aims to improve safety service capabilities and profitability, emphasizing the need for continued support from partners [2]. - Discussions with major aircraft manufacturers and leasing companies focused on aircraft introduction, engine support, and industry chain collaboration [2][3]. - HNA Group expressed willingness to participate in the international expansion of domestic aircraft, leveraging its experience in overseas cargo and passenger operations [2][3]. Group 2: Engine and Maintenance Collaboration - HNA Group showcased its efforts in building an aviation industry cluster, particularly in Hainan and Chongqing, and highlighted its achievements in filling regional industry gaps with maintenance projects for Boeing 787 and Airbus A320/Boeing 737 engines [3]. - The company aims to deepen collaboration with engine manufacturers and suppliers in areas such as production line cooperation and local production of aviation chemical products [3]. Group 3: Recognition and Corporate Values - Four airlines under HNA Group received awards at the 2025 Global Airline Awards, with Hainan Airlines achieving the "SKYTRAX Five-Star Airline" status for the 14th time [3]. - HNA Group's corporate culture emphasizes benefits to the country, the company, employees, and passengers, supported by a robust safety management system and a commitment to service quality [3][5].
印度波音 787 坠机,和孩子一起聊聊波音飞机背后的故事|Knock Knock 世界
声动活泼· 2025-06-19 10:46
Core Viewpoint - The article discusses the recent challenges faced by Boeing, particularly focusing on safety issues, declining orders, and the impact of a recent plane crash, highlighting the company's struggle to maintain its reputation and market position in the aviation industry [1][3][18]. Group 1: Recent Incidents and Impact - On June 12, 2025, an Indian Airlines Boeing 787 crashed shortly after takeoff, resulting in 241 fatalities and only one survivor, marking it as one of the worst aviation disasters in a decade [1]. - Following the crash, India's aviation regulatory body ordered inspections of all Boeing 787 aircraft and is considering grounding the model [1]. - The crash has intensified scrutiny on Boeing, contributing to a significant trust crisis and damaging the company's brand image [3]. Group 2: Boeing's Historical Context - Boeing, established in 1916, was once a dominant force in the aviation industry, producing iconic aircraft like the Boeing 707 and 747, which significantly shaped commercial aviation [4][6]. - The Boeing 747, known for its four engines and dual-deck design, was a technological pinnacle for the company, capturing over 60% of the global commercial aviation market at its peak [6]. Group 3: Financial Performance and Order Decline - Boeing's new aircraft orders plummeted by approximately 60% last year, reflecting a severe downturn in demand [3]. - The company has faced continuous losses since 2019, accumulating a net loss of $36 billion (approximately 260 billion RMB) over six years, marking the longest period of losses in its history [9]. Group 4: Cultural and Operational Changes - The decline in Boeing's engineering culture began after its acquisition of McDonnell Douglas in 1997, shifting the focus from safety and quality to profit maximization [10]. - Boeing's decision to outsource critical components led to quality control issues, exemplified by the delayed production of the 787 Dreamliner, which was three years behind schedule due to unusable parts from suppliers [11]. Group 5: Safety Issues and Regulatory Scrutiny - The 737 MAX crisis, resulting from rushed upgrades to compete with Airbus, led to two fatal crashes and revealed significant flaws in Boeing's safety management systems [13][14]. - Investigations uncovered 27 issues within Boeing's safety management, including poor communication and lack of effective reporting channels [14]. Group 6: Future Outlook and Market Position - Despite its challenges, Boeing is unlikely to face bankruptcy due to its dominant position in the commercial aircraft market, which is primarily shared with Airbus [18]. - The company is working with the FAA to implement a new safety management system to address quality and safety concerns, aiming to restore public trust [20].
波音正在“急速坠落”
3 6 Ke· 2025-06-19 09:46
Core Viewpoint - Boeing has faced a significant decline in its reputation and financial performance due to a series of accidents and a shift away from its engineering culture towards a focus on cost-cutting and shareholder returns [2][3][6]. Financial Performance - Boeing has incurred a cumulative loss of $35.991 billion from 2019 to 2024, marking the largest six-year loss in its 108-year history [2]. - The company has engaged in substantial stock buybacks, spending $43.4 billion from 2013 to 2019, while its cumulative profits during that period were only $38.8 billion [8]. Engineering Culture Shift - The company abandoned its strong engineering culture after acquiring McDonnell Douglas in 1997, prioritizing financial stability and stock price over quality and innovation [3][6]. - Boeing's obsession with cost control led to significant reductions in development budgets, exemplified by the 737 MAX project, which saw costs slashed from an initial $25 billion to only $2.5 billion [4][5]. Market Position and Competition - Boeing's market share has been eroded by Airbus, which has outperformed Boeing in aircraft deliveries since 2019, delivering 766 aircraft in 2024 compared to Boeing's 348 [16][18]. - The global commercial aircraft market is increasingly competitive, with emerging players like COMAC's C919 and Russia's MC-21 posing additional threats to Boeing's dominance [19][20]. Manufacturing and Supply Chain - Boeing has shifted a significant portion of its manufacturing overseas, with foreign suppliers handling 70% of the work on the 787 project, compared to only 2% for the 727 project [13]. - The company is attempting to regain control over its supply chain by acquiring key suppliers, such as the recent acquisition of a critical parts supplier [21]. Future Outlook - Boeing's future growth prospects are dimmed by a projected decline in global air travel demand growth, with passenger volume growth expectations lowered from 4.7% to 4.2% [20]. - The company is exploring options to re-enter the Russian market and is investing in new technologies, including electric and smart aviation solutions [21].