Sergey Brin's Zeppelin Pathfinder 1

Sergey Brin's Zeppelin Pathfinder 1

Author
Discussion

Scotty2

Original Poster:

1,375 posts

281 months

Sunday 16th February
quotequote all
How did I not know of this? I must be slipping.
Google Billionaire building a modern Zeppelin.

BBC article (written by someone describing Helium as "less flammable than Hydrogen"...) has some detail and a Youtube video of it outside being tested.

Being a Zeppelin and Airship fan, it's good to see someone with the funds to finance a project like this. Up Ship!

https://www.bbc.co.uk/future/article/20250214-path...


https://www.youtube.com/watch?v=A0qk8uxZYjo


Simpo Two

88,936 posts

280 months

Sunday 16th February
quotequote all
Whilst looking for buoyancy of helium vs hydrogen I found this: https://www.thecgo.org/benchmark/bring-back-hydrog...

Scotty2

Original Poster:

1,375 posts

281 months

Sunday 16th February
quotequote all
Interesting.
One of the mistakes people make when calculating usable lift between H2 and He is that you need to compare displaced air by H2 or He, not the difference between the density of the two gasses, which means that He gives about 92% of the lift compared to H2.


Edited by Scotty2 on Sunday 16th February 14:23

outnumbered

4,593 posts

249 months

Sunday 16th February
quotequote all
I used to drive past the airship hangars at Moffett field quite often when in the Bay area for work. Interesting to know that they're actually being used again for their original purpose. They are impressively big buildings.

dukeboy749r

2,989 posts

225 months

Monday 17th February
quotequote all
Having not followed/seen any updates for a while, I am presuming that Airlander is finally dead in the water, so to speak?

Mr Pointy

12,521 posts

174 months

Monday 17th February
quotequote all
What a waste of such a precious resouce; we can't make Helium & any that is released is lost forever.

Typical billionaire behaviour though - cf Starlink ruining the night sky for astromomers.

Nico Adie

654 posts

58 months

Monday 17th February
quotequote all
Mr Pointy said:
What a waste of such a precious resouce; we can't make Helium & any that is released is lost forever.

Typical billionaire behaviour though - cf Starlink ruining the night sky for astromomers.
Agreed!

Boatbuoy

1,962 posts

177 months

Monday 17th February
quotequote all
dukeboy749r said:
Having not followed/seen any updates for a while, I am presuming that Airlander is finally dead in the water, so to speak?
You'd think so, but no!

https://www.hybridairvehicles.com/the-times-aerial...

Krikkit

27,404 posts

196 months

Monday 17th February
quotequote all
Nico Adie said:
Mr Pointy said:
What a waste of such a precious resouce; we can't make Helium & any that is released is lost forever.

Typical billionaire behaviour though - cf Starlink ruining the night sky for astromomers.
Agreed!
Also agreed.

The interesting innovation potential for airships will be if someone can make carbon wrapped vessels strong enough to form an evacuated sphere - no gasses required. A few of those together and cover the thing in solar panels and you have a very economical way of moving about.

hidetheelephants

30,126 posts

208 months

Monday 17th February
quotequote all
Mr Pointy said:
What a waste of such a precious resouce; we can't make Helium & any that is released is lost forever.
We can make it, it's just really expensive.

Zaichik

362 posts

51 months

Monday 17th February
quotequote all
I always thought that most helium came from extracting it from natural gas? if it isn't extracted then it would be lost anyway.

Helium is also found in underground deposits due to radioactive decay of uranium, but this isn't used for practical purposes afaik.

Although it is the second most abundant element in the universe it is really rare on earth because it floats away into space.

hidetheelephants

30,126 posts

208 months

Monday 17th February
quotequote all
That's it, it's a decay product of tritium which is produced by fission reactors, either deliberately through the use of targets or incidentally through the use of water cooling.

MarkwG

5,528 posts

204 months

Monday 17th February
quotequote all
We were in Florida last week, & saw Wingfoot 1, one of three that Goodyear operate, built by Zeppelin in 2013/14. Airships never went away, they just reached their market limit, as far as I can see: I'm not sure what ploughing more cash in to prove what we already know really achieves...

dukeboy749r

2,989 posts

225 months

Monday 17th February
quotequote all
Willy waving?

MarkwG

5,528 posts

204 months

Monday 17th February
quotequote all
dukeboy749r said:
Willy waving?
I think so, seems to be a billionaire thing these days, Andrew Carnegie must be spinning in his grave.

Ledaig

1,783 posts

277 months

Monday 17th February
quotequote all
Boatbuoy said:
Very sceptical about Airlander. Breaks free from its mooring and is destroyed in November 2017, seven months later they leave Cardington and move to an office block (not too much hanger space there).
What on earth have they been doing in the intervening six years to still be a viable company?