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  • Showing only topics with the tag "aviation". Back to normal view
    1. Air travel is profoundly bad for the environment but one of the hardest industries to decarbonize. Can green technologies make a difference before it’s too late?

      https://www.noemamag.com/the-seductive-vision-of-green-aviation/ Picture yourself in an airship pushing into the northern latitudes. From the vantage of a barstool in the center of a luxurious...

      https://www.noemamag.com/the-seductive-vision-of-green-aviation/

      Picture yourself in an airship pushing into the northern latitudes. From the vantage of a barstool in the center of a luxurious lounge, you look through panoramic windows to see an Arctic vista scroll past. The ride is as smooth as a cruise liner cutting through a mirror sea. Above you is a white canopy, the base of the great bladder of gas keeping you airborne. Down below, a huge oval shadow glides across the pack ice.

      I disembarked from this flight of fancy and came back to reality in an industrial estate on the outskirts of the town of Bedford, a couple hours north of London. For now, the airship of my imagination sat disassembled in front of me — an engine, the top section of a tail fin, a salubrious sample cabin.

      Hybrid Air Vehicles calls it the Airlander: a colossal, state-of-the-art dirigible that was originally conceived as a military surveillance platform for the U.S. Air Force. That idea was scrapped as America de-escalated its operations in Afghanistan, but by then a new application for airships was emerging. Aviation is the most energy-intensive form of transport, and in recent years the industry has come under intense scrutiny for its environmental footprint. Unlike a passenger airplane, a passenger airship — buoyant and slow — doesn’t have to burn much fuel to stay in the air.

      “We’ve completely normalized flying in an aluminum tube at 500 miles an hour, but I think we’ve got some big changes coming,” said Tom Grundy, an aerospace engineer and HAV’s CEO, who was showing me around the research facility.

      Many of the scientific principles behind Grundy’s airship are a throwback to a bygone age, when Goodyears and Zeppelins carried affluent clientele around America and Europe and occasionally between the two. Other aspects are cutting-edge. The cambered twin hulls will be inflated with 1.2 million cubic feet of inert helium, not flammable hydrogen like most of the Airlander’s interwar forebears. The skin, a composite of tenacious, space-age materials, is barely a tenth of an inch thick but so strong that there is no need for any internal skeleton. Grundy handed me a handkerchief-sized off-cut. “You could probably hang an SUV off that,” he said. When it goes into production later this year, it will be the world’s largest commercial airliner: around 300 feet long, nearly the length of a soccer field.

      But arguably its key selling point — the reason HAV resuscitated a mode of aerial transport once thought to have gone down in flames with the Hindenburg — is that it’s green. Even powered by today’s kerosene-based jet fuel, the total emissions per kilometer from its four vectored engines will be 75% less than a conventional narrow-bodied jet covering the same distance. The Airlander of course is much slower. A maximum velocity of under 100mph means that it’s never going to compete directly with jet airliners. “We tend to think of it as sitting between the air and ground markets — a railway carriage for the skies,” Grundy told me.

      “When it enters service, perhaps as soon as 2026, the Airlander will offer premium, multi-day cruises to hard-to-reach places like the Arctic Circle.”

      A 100-seat cabin designed for regional travel has already attracted orders from carriers in Spain and Scotland. The prototype we were sitting in, with a futuristic carbon-fiber profile and wine glasses dangling above a wraparound bar, is the central section of another configuration called the “expedition payload module.” When it enters service, perhaps as soon as 2026, it will offer premium, multi-day cruises to hard-to-reach places like the Arctic Circle. Behind the communal lounge, a central corridor will lead to eight double ensuite bedrooms. “You’ll even be able to open the windows,” Grundy said.

      35 votes
    2. Recommendation request: A good price alert for flights

      The recession and inflation have hit my family quite hard and we are looking for ways to save money. One of the things I have become unfamiliar with due to travel restrictions during covid is...

      The recession and inflation have hit my family quite hard and we are looking for ways to save money. One of the things I have become unfamiliar with due to travel restrictions during covid is flight price tracking and/or seeking out special flight deals.

      Are there any price alerts you can recommend for flights?

      Any recommendations are welcome, but ideally it would be something where I could set a flight route (e.g., Berlin - Bangkok) and get recommendations if an airline is having a special deal or prices are unusually low.

      A bit of background, since I think it's nice to share why this request is so important to us: We are a multinational couple with our closest family (parents, siblings) split across two continents (Europe, Asia) and it is essential for our family to meet at least twice a year. During Covid times we had no opportunity to see each other for a period of almost four years, so the urge for future get-togethers is quite strong. More importantly, due to having children soon, we want the grandparents to see their grandchildren as much as possible. We are also in dire need of child support, which, unfortunately, is prohibitively expensive where we live. We won't be able to make enough money to make ends meet without both working, and we won't have enough time to take care of the children while working. The only solution we see is bringing over the grandparents. Due to legal reasons, they won't be able to stay more than 90 days at a time though.

      Any help is much appreciated, as every cent saved is a very valuable one we could need.

      16 votes
    3. Any pilots here?

      I've been following tildes the past couple of weeks, and am really enjoying the friendlier, more thought out discussion, when compared to reddit. The one thing I miss is r/flying, which was a...

      I've been following tildes the past couple of weeks, and am really enjoying the friendlier, more thought out discussion, when compared to reddit. The one thing I miss is r/flying, which was a pretty decent community of pilots without too much low-effort content.

      I'm curious if any other pilots have migrated here (hobby pilots, or professionals)? Are we anywhere near critical mass to support discussions around it?

      To keep this valuable to the community at large, just a bit about flying as a hobby. At-least in the US, we still have one of the most active General Aviation communities in the world. It's a lot more expensive than it used to be, but for around $10k you can earn your Private Pilot rating. With that you can fly to nearly any airport, over nearly any area, see beautiful views, experience all sorts of weather and locations. At that point you're looking at ~$100-200/hr depending where in the US you're located, and what sort of club or rental you use.

      It's expensive to be sure, but compared to what people manage to spend on boating, cars, even golfing, it can be fairly reasonable. And it's really a unique experience, if you love it there's nothing like it.

      22 votes
    4. I had the worst experience with Wizz Air

      My evening flight from Gatwick to Milan was delayed, resulting with my arrival at 2:45am when there was no public transportation available (apart from taxis). According to EU rules any delayed...

      My evening flight from Gatwick to Milan was delayed, resulting with my arrival at 2:45am when there was no public transportation available (apart from taxis).

      According to EU rules any delayed flights over 3 hours can be reimbursed (partially) as can any inconveniences.
      This is the email I received from Wizzair's claims Dept:

      Thank you for contacting Wizz Air Customer Service Department.

      We would like to extend our sincerest apologies regarding the inconvenience caused by the delay of your flight. After thoroughly investigating your case we can confirm that the delay of flight W4 5786 MXP-LGW on the 3d of July 2023 was 02:57 h, based on the arrival at your destination airport.

      Please be kindly informed that passengers are entitled to the compensation specified in Regulation (EC) No 261/2004 of the European Parliament and of the Council when there is an arrival delay of minimum 3 hours.

      Therefore, unfortunately we regret to inform you that no compensation is due in this specific situation.

      Should you have any questions or concerns, please do not hesitate to contact us by replying to this email.

      Have a pleasant day!

      Kind regards,

      I am at a loss for words (and taxi fare!)

      16 votes