Science
Related: About this forumReinventing the airship for the 2020s
Airships could offer a much cleaner and quieter alternative for some aspects of the aviation market. In a former airship factory, a new generation are taking shape.
Sergey Brin turned internet search into one of the worlds most valuable businesses more than two decades ago. Now he intends to improve a technology which had its heyday long before he was born.
Brin and his team of engineers' plan is to do this by reinventing a much older, if improved technology. A new generation of airships the lighter-than-air craft that don't need conventional airports will be built in a corner of Ohio which played a unique part in the history of aviation. What's more, if built they will be housed in one of America's most iconic structures, the Goodyear Airdock in Akron.
Airships could help speed up the delivery of aid in disaster zones, carry air cargo much more cheaply than air freighters, and cut aviation emissions. However, similar projects in the past have struggled to overcome the complex engineering challenges involved, and have either run out of money, or left potential customers disillusioned.
"Flying an airship is unlike flying any other aircraft because its lighter than air and floats, instead of sinks, when you put the power at idle," says Andrea Deyling, a pilot and director of airship operations of Brins airship company, LTA Research. "Theres also a sense of wonder people have when they see a lighter-than-air vehicle flying overhead. LTA Research is building a unique airship and I can't wait to get into the actual aircraft and fly it."
In the first half of the 20th Century, Akron in Ohio, was known as the "rubber capital of the world" because it was home to great American tyre manufacturers such as one time arch-rivals Goodyear and Firestone, and it soon became a centre of airship development thanks to the connections between the two industries.
https://www.bbc.com/future/article/20220621-the-giant-hangar-poised-for-an-aviation-revolution
Wounded Bear
(60,665 posts)COL Mustard
(6,882 posts)They're so immense they supposedly have their own weather systems. Moisture can condense inside and form clouds that will rain.
lapfog_1
(30,138 posts)having walked around inside the original back when I worked there in the 1990s, I'm glad they decided to restore it. And yes, it was so large that condensation clouds would form at the top of the hanger.
lapfog_1
(30,138 posts)Hydrogen, cheap and plentiful, is very dangerous to handle.
Helium is very safe... and we are running out of it.
we can "liberate" hydrogen from water.
The major commercial source of helium is natural gas which contains an average of 0.4% helium. Not exactly where we want to continue getting Helium.
There are many other commercial uses for Helium as well, not just for those mylar party balloons that you get for graduations and birthdays.
krispos42
(49,445 posts)I understand that helium is a by-product of natural uranium fission... the slow kind from U-238, not the atomic-bomb U-235.
So we've been sucking up and using helium from reserves that took a couple of billion years to form and will take billions more to replenish.