Airbus, Safran and Tikehau Capital finalise acquisition of Aubert & Duval

https://www.airbus.com/en/newsroom/press-releases/2023-04-airbus-safran-and-tikehau-capital-finalise-acquisition-of-aubert?utm_source=feedly&utm_medium=rss 

Transport, treat, save lives: Airbus delivers first protected-wounded transport container to German Armed Forces

https://www.airbus.com/en/newsroom/press-releases/2023-05-transport-treat-save-lives-airbus-delivers-first-protected-wounded?utm_source=feedly&utm_medium=rss 

Skyportz to offer air taxi charging stations for private buildings

https://australianaviation.com.au/2023/04/skyportz-to-offer-air-taxi-charging-stations-for-private-buildings/ 

RAAF refuels with Japanese F-15J Eagles

https://australianaviation.com.au/2023/05/raaf-refuels-with-japanese-f-15j-eagles/ 

Helo Market Forecasted To Grow 30 Percent

https://www.ainonline.com/aviation-news/business-aviation/2023-04-25/helo-market-forecasted-grow-30-percent 

NASA, Reliable Robotics Partner on UAS Safety

https://www.ainonline.com/aviation-news/aerospace/2023-04-27/nasa-reliable-robotics-partner-uas-safety 

Safran To Lead Open Fan Studies for EU’s OFELIA Project

https://www.ainonline.com/aviation-news/air-transport/2023-04-28/safran-lead-open-fan-studies-eus-ofelia-project 

NASA's X-59 Supersonic Aircraft Set To Fly This Year

https://www.ainonline.com/aviation-news/business-aviation/2023-04-28/nasas-x-59-supersonic-aircraft-set-fly-year 

Most advanced AMRAAM variant, AIM-120D-3, completes critical milestone for operational use

https://www.aerotechnews.com/blog/2023/04/29/most-advanced-amraam-variant-aim-120d-3-completes-critical-milestone-for-operational-use/ 

NASA's Quesst to end 50-year-old commercial supersonic flight ban over US

NASA this week marked the 50th anniversary of the total ban of civilian supersonic flights over the United States. The milestone comes as the agency continues with the development of the X-59 experimental supersonic aircraft intended to reintroduce civilian Mach+ service.

Continue Reading

https://newatlas.com/aircraft/nasa-50th-anniversary-us-commercial-supersonic-flight-ban/ 

Lunatic does BMX stunts in airborne skate bowl at 2,000 feet

Red Bull had to call on the engineering capabilities of its Formula One team to pull this insane gag off; the wooden skate bowl originally built for the shot was too heavy to lift into the air, at around six tons.

Continue Reading

https://newatlas.com/bicycles/airborne-skate-bowl-bmx/ 

US Army says open system requirements clear for next-gen helicopter

https://www.defensenews.com/digital-show-dailies/aaaa/2023/05/02/us-army-says-open-system-requirements-clear-for-next-gen-helicopter/ 

Lilium announces capital raise for up to $250M, with $100M funded at close - Vertical Mag

https://verticalmag.com/press-releases/lilium-announces-capital-raise-for-up-to-250m-with-100m-funded-at-close/ 

Turkish attack helicopter has flown for first time

Aceu™ (@AceJaceu) twitteó a las 5:39 p. m. on vie., abr. 28, 2023:
#Turkiye:

And another milestone for the Turkish Aerospace Industry!

The Heavy Class Attack Helicopter T-929 (ATAK-2), developed by TAI, made its first flight today. This helicopter will be similar to the US´s Apache Helicopter. https://t.co/bYUDwsLKoe
(https://twitter.com/AceJaceu/status/1651974508130062336?t=MXY-S61u8lysTkEIxHbt4Q&s=03) 

Turkish heavy attack helo breaks cover

https://www.janes.com/defence-news/news-detail/turkish-heavy-attack-helo-breaks-cover 

https://twitter.com/JoseM_SGP/status/1551877987594805249?t=_YizSTNe2H0Jwqm7t39RBQ&s=19

Three soldiers killed after US Apache helicopters collide - AeroTime

https://www.aerotime.aero/articles/two-boeing-apache-helicopters-collide-in-alaska-three-dead 

SpaceX Starship Grounded Indefinitely By FAA - FLYING Magazine

https://www.flyingmag.com/spacex-starship-grounded-indefinitely-by-faa/ 

¿Volaremos en motoveleros remolcados por aviones eléctricos para ahorrar combustible? - Sandglass Patrol

https://blog.sandglasspatrol.com/volaremos-en-motoveleros-remolcados-por-aviones-electricos-para-ahorrar-combustible/ 

"Turkish made JACKAL combat drone fires Thales missile | InShort" @ YouTube

https://youtu.be/LKg4MhnWaJk 

FAA unveils high-profile aerospace line-up to carry out independent safety review

https://www.flightglobal.com/safety/faa-unveils-high-profile-aerospace-line-up-to-carry-out-independent-safety-review/153017.article 

KLM starts collaboration with AeroDelft student team to build a hydrogen plane

https://www.aviation24.be/airlines/air-france-klm-group/klm-royal-dutch-airlines/klm-starts-collaboration-with-aerodelft-student-team-to-build-a-hydrogen-plane/ 

EU Countries Agree on ReFuelEU Decarbonization Plan

https://www.ainonline.com/aviation-news/air-transport/2023-04-26/eu-countries-agree-refueleu-decarbonization-plan 

SENASA pone en venta el aeródromo de Ocaña (otra vez)

https://www.senasa.es/index.php?lang=es-ES&idPag=657 

Embraer presents Defense & Security portfolio at FAMEX 2023, in Mexico

https://embraer.com/global/en/news?slug=1207187-embraer-presents-defense-security-portfolio-at-famex-2023-in-mexico

Embraer signs Memorandum of Understanding with Portuguese Defense Industry

https://embraer.com/global/en/news?slug=1207185-embraer-signs-memorandum-of-understanding-with-portuguese-defense-industry

Boeing to Advance Aerospace Innovation through Korean Industry Partnerships

https://boeing.mediaroom.com/news-releases-statements?item=131247 

Harbour Air delays electric DHC-2 effort amid ‘ever-changing’ certification standards

https://www.flightglobal.com/engines/harbour-air-delays-electric-dhc-2-effort-amid-ever-changing-certification-standards/152975.article 

GKN builds additive manufacturing capability as business reaches ‘tipping point’

https://www.flightglobal.com/aerospace/gkn-builds-additive-manufacturing-capability-as-business-reaches-tipping-point/152995.article 

GKN Aerospace will later this year produce what it describes as the first load-bearing component to be made through additive manufacturing, as the UK-headquartered company eyes a rapid expansion of its capabilities in the space

Night vision goggle error likely behind NZ BK117 crash in 2018

https://www.flightglobal.com/helicopters/night-vision-goggle-error-likely-behind-nz-bk117-crash-in-2018/153001.article 

Airbus Helicopters introduces first American-made military versions of the H125

Airbus Helicopters is introducing the first U.S.-built H125 military configurations, known as AH-125 and MH-125 Ares, to the Airbus range of military helicopters.

https://www.airbus.com/en/newsroom/press-releases/2023-04-airbus-helicopters-introduces-first-american-made-military-versions?utm_source=feedly&utm_medium=rss 

Lockheed Awarded $2.45 B For Patriot PAC-3 Missile Production | Iran Army Gets 200 New Drones | India Flight Tested BMD

https://www.defenseindustrydaily.com/lockheed-awarded-2-45-b-for-patriot-pac-3-missile-production-iran-army-gets-200-new-drones-india-flight-tested-bmd-047956/ 

Raytheon Unveiled Next Gen Electro Optical Intelligent Sensing | Israel Deploys New Missile Early Warning System In Kyiv | Vietnam Ordered L-39NG

https://www.defenseindustrydaily.com/raytheon-unveiled-next-gen-electro-optical-intelligent-sensing-israel-deploys-new-missile-early-warning-system-in-kyiv-vietnam-ordered-l-39ng-047960/ 

United Airlines faces substantial aircraft delivery delays

In an April 20 filing, United Airlines says 18 aircraft due from Airbus are delayed and over 100 aircraft due from Boeing will be late.

https://www.ch-aviation.com/portal/news/126924-united-airlines-faces-substantial-aircraft-delivery-delays 

Air New Zealand grounds A321neo over engine supply issues

https://www.ch-aviation.com/portal/news/126920-air-new-zealand-grounds-a321neo-over-engine-supply-issues 

Turkish Aerospace Industries (TUSAŞ) Hürjet made its first flight.

Turkish Aerospace Industries (TUSAŞ) Hürjet made its first flight at Mürted Airfield Command, an air base of the Turkish Air Force in the capital Ankara's...

https://aviationnews.eu/news/2023/04/turkish-aerospace-industries-tusas-hurjet-made-its-first-flight/ 

Additional delay in the partial takeover of ITA Airways by Lufthansa

The negotiations regarding the privatisation of ITA Airways have been extended until May 12 after several phone calls between the Italian Treasury and Lufthansa. The two-month exclusivity period set by the memorandum of understanding signed by the Ministry of Economy and Finance on January 27 expired on April 24, and the parties are finalising some […]

https://www.aviation24.be/airlines/lufthansa-group/additional-delay-in-the-partial-takeover-of-ita-airways-by-lufthansa/ 

Air Horizont Boeing 737 rejects take-off at Braunschweig after flames on engine, grounding Arsenal’s women team

https://www.aviation24.be/airlines/air-horizont/air-horizont-boeing-737-rejects-take-off-at-brauschweig-after-flames-on-engine-grounding-arsenals-women-team/ 

Australia rules out B-21 Raider in favour of F-35 missiles

The surprising decision comes despite Defence Minister Richard Marles previously saying that purchasing the B-21 was "being examined" and US Air Force Secretary Frank Kendall suggesting his country would be "willing to talk" about a deal.

https://australianaviation.com.au/2023/04/australia-rules-out-b-21-raider-in-favour-of-f-35-missiles/ 

Garmin Unveils PlaneSync Datalink for Managing Data

Capturing flight data and updating avionics databases will be much simpler with installation of Garmin's PlaneSync connected aircraft management system.

https://www.ainonline.com/aviation-news/business-aviation/2023-04-24/garmin-unveils-planesync-datalink-managing-data 

ERAU Students Test Reliable Robotics’ Remote-pilot Tech

Researchers with Reliable Robotics visited ERAU's Air Traffic Control (ATC) laboratory earlier this month to demonstrate the company's autonomous flight and remote piloting capabilities using the university's virtual simulators. During the demonstration, students took on roles of remote pilots and air traffic controllers to simulate communications in busy airspace.

https://www.ainonline.com/aviation-news/business-aviation/2023-04-24/erau-students-test-reliable-robotics-remote-pilot-tech 

U.S. Marine Corps activates second F-35C squadron

https://www.aerotechnews.com/blog/2023/04/25/u-s-marine-corps-activates-second-f-35c-squadron/ 

Japan's Hakuto-R Moon landing ends in silence

Japan's attempt to put a privately-owned spacecraft on the Moon appears to have ended in failure. Scheduled to land in the Mare Frigoris region at 16:40 GMT, the Hakuto-R Mission 1 lander lost contact with Mission Control in Nihonbashi, Tokyo shortly before the planned touchdown.

Continue Reading

https://newatlas.com/space/japans-hakuto-r-moon-landing-end/ 

Rheinmetall presenta un UAV porta drones (Portaaviones aéreos 19) - Sandglass Patrol

https://blog.sandglasspatrol.com/rheinmetall-presenta-un-uav-porta-drones-portaaviones-aereos-19/ 

Rheinmetall ha presentado recientemente un avión nodriza que porta en su interior otros pequeños drones kamikaze o munición merodeadora.

The Defence Strategic Review has triggered one of the greatest shifts in Australia's military since WWII. Here's what will change - ABC News

https://www.abc.net.au/news/2023-04-24/defence-strategic-review-key-takeaways/102260364 

Russian aircraft lands in Berlin despite EU wide airspace ban

https://www.aerotime.aero/articles/russian-il-96-300-jet-lands-in-berlin-despite-eu-wide-airspace-ban?utm_source=linkedin.com&utm_medium=social&utm_campaign=organic 

China's space missions break new ground

 https://www.spacedaily.com/reports/Chinas_space_missions_break_new_ground_999.html 

Helicopter flight paths to reduced emissions

 https://www.airbus.com/en/newsroom/stories/2023-04-helicopter-flight-paths-to-reduced-emissions?utm_source=rss&utm_medium=rss 

Raytheon Technologies awarded $237 million counter-UAS contract

 https://uasmagazine.com/articles/2807/raytheon-technologies-awarded-237-million-counter-uas-contract 

New aircraft technologies. Part 8. Propulsion advances

Bjorn's Corner: New aircraft technologies. Part 8. Propulsion advances https://leehamnews.com/2023/04/14/bjorns-corner-new-aircraft-technologies-part-8-propulsion-advances/ 

Bjorn’s Corner: New aircraft technologies. Part 9. Engine core advances

Bjorn's Corner: New aircraft technologies. Part 9. Engine core advances https://leehamnews.com/2023/04/21/bjorns-corner-new-aircraft-technologies-part-9-engine-core-advances/ 

Electric aircraft could make Yakima an expansion option, airport official says

https://www.seattletimes.com/business/boeing-aerospace/electric-aircraft-could-make-yakima-an-expansion-option-airport-official-says/?utm_source=RSS&utm_medium=Referral&utm_campaign=RSS_boeing-aerospace 

Australia rules out B-21, but calls for further MQ-28 work with USA

https://www.flightglobal.com/defence/australia-rules-out-b-21-but-calls-for-further-mq-28-work-with-usa/152969.article 

Rheinmetall unveils Combat Drone unmanned aerial system to launch kamikaze drones Hero R | gagadget.com

https://gagadget.com/en/uav/237031-rheinmetall-unveils-combat-drone-unmanned-aerial-system-to-launch-kamikaze-drones-hero-r/ 

Qatar Airways Airbus A350-900 suffers tail strike during landing at Islamabad Airport, Pakistan

https://www.aviation24.be/airlines/qatar-airways/airbus-a350-900-suffers-tail-strike-during-landing-at-islamabad-airport-pakistan/ 

Plane of Thrones is on as Qantas interviews for Joyce successor

https://australianaviation.com.au/2023/04/plane-of-thrones-is-on-as-qantas-interviews-for-joyce-successor/ 

Qantas has begun interviewing executives to replace long-standing CEO Alan Joyce, with a decision expected as early as the end of next month.

EASA Updates Third Country Operator Rules

https://www.ainonline.com/aviation-news/business-aviation/2023-04-21/easa-updates-third-country-operator-rules 

EASA has updated its Third Country Operator (TCO) requirements, which apply to non-European-registered aircraft operators conducting commercial flights into, within, and out of any European Union nation. Such flights include unscheduled business aircraft charters. Private flights remain exempt and TCO authorization is not required for operators overflying EU nations without intending to land.

GA Leaders See Opportunity in 'Existential Threat' to Industry

https://www.ainonline.com/aviation-news/business-aviation/2023-04-21/ga-leaders-see-opportunity-existential-threat-industry 

The industry faces an "existential threat" with European leaders pushing for curbs on business and general aviation, industry leaders said this week during Aero Friedrichshafen. But those leaders agreed that this provides an opportunity to present a positive story and a mandate to push forward with new technologies

La universidad de Arizona recupera las aeronaves inflables en forma de drone

https://blog.sandglasspatrol.com/la-universidad-de-arizona-recupera-las-aeronaves-inflables-en-forma-de-drone/ 

SpaceX's Texas Rocket is Going To Cause A Lot More Damage Than Anyone Thinks

https://blog.esghound.com/p/spacexs-texas-rocket-is-going-to 

La Base Aérea de Cuatro Vientos acoge la conmemoración del centenario de la primera aeroevacuación sanitaria en España

https://www.defensa.gob.es/gabinete/notasPrensa/2023/04/DGC-230420-centenario-aeroevacuacion.html

España logra evacuar a 104 personas de Sudán, entre ellos 30 españoles, en A400M del Ejército del Aire

https://www.exteriores.gob.es/es/Comunicacion/NotasPrensa/Paginas/2023_NOTAS_P/20230423_NOTA024.aspx

Escape system problem causes T-7 deliveries to slip to end of 2025

https://www.defensenews.com/air/2023/04/20/escape-system-problem-causes-t-7-deliveries-to-slip-to-end-of-2025/?utm_source=twitter&utm_medium=social&utm_campaign=tw_dfn 

El único Fokker D.XXI que quedaba en vuelo completa los ensayos en vuelo de certificación - Sandglass Patrol

https://blog.sandglasspatrol.com/el-unico-fokker-d-xxi-que-quedaba-en-vuelo-completa-los-ensayos-en-vuelo/ 

[Vídeo] A400M lanza 94 paracaidistas en apertura automática - Sandglass Patrol

https://blog.sandglasspatrol.com/video-a400m-lanza-94-paracaidistas-en-apertura-automatica/ 

Sole airworthy Fokker D.XXI completes test flights!

https://www.key.aero/article/sole-airworthy-fokker-dxxi-completes-test-flights?utm_campaign=KA%20Social%202023&utm_content=246112078&utm_medium=social&utm_source=facebook&hss_channel=fbp-190205017710994 

BAE Systems And Leonardo Join Forces For New Self-Protection System

The new defensive system will combine BAE Systems' Common Missile Warning System and Leonardo's Miysis DIRCM in a readily exportable package. BAE Systems and Leonardo received the approval from the United States government to proceed [...]

https://theaviationist.com/2023/04/21/bae-systems-and-leonardo-join-forces-for-new-self-protection-system/ 

Aeroflot Is Removing Aircraft From Storage Amid Continued International Sanctions

https://simpleflying.com/aeroflot-removing-aircraft-storage-international-sanctions/ 

The Controversy Behind One Of The Best Ever Airline Safety Videos

https://simpleflying.com/virgin-america-safety-video-controversy/ 

Fight involving fifteen passengers on board a Norwegian Boeing 737 from Oslo to Alicante

Norwegian flight DY1792 this evening didn't go as planned as, according to Spanish air traffic control, a fight occurred on board involving about fifteen passengers. Originating from Oslo, Norway, the aircraft was awaited by emergency services and police officers, upon request by the captain. The crew reported that some passengers received injuries. According to information […]

https://www.aviation24.be/airlines/norwegian-air-shuttle/fight-involving-fifteen-passengers-on-board-a-norwegian-boeing-737-from-oslo-to-alicante/ 

Austrian Partners Start Work on Hydrogen Piston Engine

A partnership between Diamond Aircraft and the Austrian government is developing options to power general aviation aircraft with liquid hydrogen

https://www.ainonline.com/aviation-news/business-aviation/2023-04-19/austrian-partners-start-work-hydrogen-piston-engine 

Inflatable drone bounces and perches instead of crashing and hovering

If you've ever tried piloting a quadcopter drone, you'll know that they invariably end up running into walls, trees or whatnot … often getting damaged in the process. An experimental new inflatable-body drone, however, just bounces off obstacles – plus it can grasp onto them.

Continue Reading

https://newatlas.com/drones/sobar-inflatable-drone/ 

Juice liftoff - YouTube

https://m.youtube.com/watch?v=ZBgcAUUStho&feature=youtu.be 

Scientists hail new battery with 4 times energy density of lithium-ion

https://thedriven.io/2023/04/03/scientists-hail-new-battery-with-4-times-energy-density-of-lithium-ion/?_gl=1*1ugtvmn*_ga*dzh4T3B1cHRvV1NxYUVqVDZRQWlUTWxJX0hpWEdMM2luN2FGbjUyczI1RGFva1AwN1pyZzFvVkhNc0FnMHA3Vw.. 

World's largest battery maker announces major breakthrough in energy density

https://thedriven-io.cdn.ampproject.org/c/s/thedriven.io/2023/04/21/worlds-largest-battery-maker-announces-major-breakthrough-in-battery-density/amp/ 

In one of the most significant battery breakthroughs in recent years, the world's largest battery manufacturer CATL has announced a new "condensed" battery with 500 Wh/kg which it says will go into mass production this year.

Ver "AERO 2023 Friedrichshafen Part 2" en YouTube

https://youtu.be/S-J4IqpMHqI 

Ver "AERO 2023 Friedrichshafen Germany. Part 1" en YouTube

https://youtu.be/9beNu7TyX3k 

"Robin's DR401 Turbine" @ YouTube

https://youtu.be/dMw2Ql2DENc 

"AERO 2023 Day 2" @ YouTube

https://youtu.be/k6lgRYvZKEo 

"AERO 2023 - Day 1" @ YouTube

https://youtu.be/bJW7hEnSir0 

Ver "Certificado la capacidad máxima del T-23 A400M @airbus en la modalidad de apertura automática" en YouTube

https://youtu.be/NvDlEdfe-nI 

Airline blunder sells $10,000 Asia-U.S. business class tickets for $300

https://www.seattletimes.com/business/airline-blunder-sells-10000-asia-u-s-business-class-tickets-for-300/

 

Eagle-eyed travelers snapped up heavily discounted tickets in the fanciest cabins on All Nippon Airways after a currency conversion blunder.

First (And Only) Ukrainian Black Hawk Seen In Action

https://theaviationist.com/2023/04/19/ukrainian-black-hawk-seen-in-action/ 

The Last MC-130H Combat Talon II Special Operations Aircraft Has Been Retired

https://theaviationist.com/2023/04/20/last-mc-130h-combat-talon-ii-retired/ 

Mirus Aircraft Seating Opens The UK's Largest Crash Test Facility

https://simpleflying.com/mirus-aircraft-seating-opens-crash-test-facility/ 

Britten-Norman & Cranfield Merge To Bring Zero Emissions Airplane To Service By 2026

https://simpleflying.com/britten-norman-cranfield-merger/ 

FAA Selects Sustainable Design for New Control Towers at Municipal, Smaller Airports

https://www.faa.gov/newsroom/faa-selects-sustainable-design-new-control-towers-municipal-smaller-airports 

Pentagon to fund expansion of rocket motor production at Aerojet Rocketdyne

https://www.flightglobal.com/fixed-wing/pentagon-to-fund-expansion-of-rocket-motor-production-at-aerojet-rocketdyne/152904.article 

Momentum grows in Washington for changes to 1,500h pilot-experience rule

https://www.flightglobal.com/safety/momentum-grows-in-washington-for-changes-to-1500h-pilot-experience-rule/152919.article 

Leaked Pentagon document suggests China’s WZ-8 supersonic UAV in service

https://www.flightglobal.com/military-uavs/leaked-pentagon-document-suggests-chinas-wz-8-supersonic-uav-in-service/152927.article 

Russian prime minister foresees strong demand for TVRS-44 Ladoga turboprop

https://www.flightglobal.com/air-transport/russian-prime-minister-foresees-strong-demand-for-tvrs-44-ladoga-turboprop/152942.article 

Russian prime minister Mikhail Mishustin claims demand for the new UZGA TVRS-44 Ladoga regional turboprop stands at some 550 aircraft.

Airbus Atlantic showcases two demonstrators for the aircraft of the future at JEC World 2023 - JEC

https://www.jeccomposites.com/news/airbus-atlantic-showcases-two-demonstrators-for-the-aircraft-of-the-future-at-jec-world-2023/ 

Most advanced AMRAAM variant, AIM-120D-3, completes critical milestone for operational use

https://aviationnews.eu/news/2023/04/most-advanced-amraam-variant-aim-120d-3-completes-critical-milestone-for-operational-use/ 

Malmö (Sweden) and Copenhagen (Denmark) are working on a plan to connect their metro systems

https://www.aviation24.be/railways/malmo-sweden-and-copenhagen-denmark-are-working-on-a-plan-to-connect-their-metro-systems/ 

Swedish and Danish air forces in joint action after Russian reconnaissance aircraft over the Baltic Sea

https://www.aviation24.be/military-aircraft/swedish-armed-forces/swedish-and-danish-air-forces-in-joint-action-over-the-baltic-sea/ 

Major SAF Plant on Tap for Spain

https://www.ainonline.com/aviation-news/aerospace/2023-04-19/major-saf-plant-tap-spain 

Diamond Aircraft To Begin SAF Testing in Diesel Engines

https://www.ainonline.com/aviation-news/general-aviation/2023-04-19/diamond-aircraft-begin-saf-testing-diesel-engines 

Raytheon Technologies awarded $237 million counter-UAS contract

https://www.aerotechnews.com/blog/2023/04/21/raytheon-technologies-awarded-237-million-counter-uas-contract/ 

Air Guard units practice aerial wildland firefighting

https://www.aerotechnews.com/blog/2023/04/20/air-guard-units-practice-aerial-wildland-firefighting/ 

'Chemtrails' debunked

https://www.aerosociety.com/news/chemtrails-debunked/ 

[España] Nace la Alianza para la Sostenibilidad del Transporte Aéreo - Alaspain

Nota de prensa

https://www.alaspain.com/nace-la-alianza-para-la-sostenibilidad-del-transporte-aereo/