Airlander
Author
Discussion

RizzoTheRat

Original Poster:

28,794 posts

221 months

Friday 28th February 2014
quotequote all
An interesting concept but is there really a market for something carrying a payload of a bit over a tonne for 21 days? Persistent surveillance is useful to the military, but low speed means it's potentially less useful for watching stuff a long way away than fixed wing aircraft, and aerostat systems are far simpler for watching the local area.
The video mentions mining, is the idea that this would be cheaper to operate than fixed wing for doing geological surveys?

http://www.bbc.co.uk/news/magazine-26372277

The best airship uses I've seen in recent years have been about moving slowly or holding position, eg mine hunting, rather than mmore efficient flight.

I'd love to see these in the sky but I'd be interested to know the market.

anonymous-user

83 months

Friday 28th February 2014
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Maybe they'll find a home away from industrial or military applications and end up in the luxury market?
I can see the larger versions mentioned in the report (50 tonnes payload?) carving a niche as a flying alternative to a Sunseeker as the ultimate getaway vehicle. Where big boats have speed and the ocean for seclusion, this would have the sky......If nothing else the views would take some beating, and there is a certain appeal in not having to be anywhere in a hurry.

Simpo Two

92,670 posts

294 months

Friday 28th February 2014
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If a Hercules is a Fat Albert then that's a Fat bd.

kiethton

14,635 posts

209 months

Friday 28th February 2014
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After just seeing this on the Mail i think the major use for this would be air freight.

Wait until Fed-ex/UPS etc. start using high payload versions of these things as opposed to their current freight aircraft:

Higher payload (eventually)
Admitedly slower moving (not so much of a problem for freight)
Less fuel used so lower costs of transport etc.

But the big one:

Vertical landing/takeoff

How long until they attach a landing area to their distribution warehouses? - the airships will then integrate into these directly getting rid of the need for a degree of road transport and associated cost as well as saving time/money. They won't need to have multiple sites, expensive landing slots etc.

London to China is around 6k miles (worst case) - so 60 hours flight time (2.5 days) which is acceptable for freight, whilst traditional air freight can still be offered at additional cost?

Simpo Two

92,670 posts

294 months

Friday 28th February 2014
quotequote all
But only a ton of freight - what's that against the cost of the airship? I think to pay it would have to cost a lot, and that won't fit with the slow times.

RizzoTheRat

Original Poster:

28,794 posts

221 months

Friday 28th February 2014
quotequote all
To be fair the tonne of freight is the current prototype, they're claiming they could build a 50 tonne one, so similar payload to a 747.

Good point about being able to use smaller fields rather than airports, but I wonder how much that 2 day trip to china in one of these would cost compared to a 747? Plus you'd have to reduce the payload a bit for crew accommodation if they're going to be flying the thing for several days.

kiethton

14,635 posts

209 months

Friday 28th February 2014
quotequote all
Simpo Two said:
But only a ton of freight - what's that against the cost of the airship? I think to pay it would have to cost a lot, and that won't fit with the slow times.
Initially yes, but they are developing ones with a 50tn payload....

But even at 10 tonnes it gets more viable, especially on shorter routes

kiethton

14,635 posts

209 months

Friday 28th February 2014
quotequote all
RizzoTheRat said:
crew accommodation if they're going to be flying the thing for several days.
Pretty sure within 10 years we'll go the way of the super container prototypes in the press yesterday - complete camera control and flown from a virtual flightdeck - for freight anyway

Simpo Two

92,670 posts

294 months

Friday 28th February 2014
quotequote all
RizzoTheRat said:
I wonder how much that 2 day trip to china in one of these would cost compared to a 747? Plus you'd have to reduce the payload a bit for crew accommodation if they're going to be flying the thing for several days.
I don't see it getting to China in two days with all the various winds it's going to encounter. But it's an interesting halfay house between an airliner's 'Get there fast but in a small chair' and an ocean liner's 'Get there slowly in space and luxury'. Weight is an issue but space isn't so critical.

DoubleSix

12,535 posts

205 months

Friday 28th February 2014
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I heard one of the backers (chap from Iron Maiden) talking about it on R4 this morning.

He was placing a lot of emphasis on it's ability to travel large distances and deliver aid to remote areas. Dunno how that compares to a Chinook but sounded compelling...

Simpo Two

92,670 posts

294 months

Friday 28th February 2014
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DoubleSix said:
and deliver aid to remote areas.
= 'not commercially viable' smile

Boatbuoy

1,975 posts

191 months

Friday 28th February 2014
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If you go to Hybrid Air Vehicle's website you can enter a competition to win a trip on the inaugural passenger flight.

CrutyRammers

13,735 posts

227 months

Friday 28th February 2014
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I'd love to see airships make a comeback but outside of luxury cruising I just can't see it.

DoubleSix

12,535 posts

205 months

Friday 28th February 2014
quotequote all
Simpo Two said:
DoubleSix said:
and deliver aid to remote areas.
= 'not commercially viable' smile
A good point, well made.

What about key workers to remote mining destinations or telecoms base stations... Im think Australia et al

Simpo Two

92,670 posts

294 months

Friday 28th February 2014
quotequote all
DoubleSix said:
What about key workers to remote mining destinations or telecoms base stations... Im think Australia et al
The hotter the climate the smaller the payload. It can certainly do stuff but I just can't see the numbers adding up. And where do you keep it safely when a tornado comes in? Helium has solved the flammability issue but I think the overall business model for airships still doesn't work. But am happy to be proved wrong.

RizzoTheRat

Original Poster:

28,794 posts

221 months

Friday 28th February 2014
quotequote all
Simpo Two said:
Helium has solved the flammability issue
But at the expense of lifting capacity, helium is about double the density. Presumably modern construction techniques offset that a lot but I wonder how big the envelope on a modern airship needs to be for a given payload compared to R101/Zeppelin era ones.

tvrolet

4,745 posts

311 months

Friday 28th February 2014
quotequote all
RizzoTheRat said:
helium is about double the density.
RizzoTheRat said:
..but I wonder how big the envelope on a modern airship needs to be for a given payload compared to R101/Zeppelin era ones.
scratchchin twice the volume?

RizzoTheRat

Original Poster:

28,794 posts

221 months

Friday 28th February 2014
quotequote all
tvrolet said:
scratchchin twice the volume?
You think they could make an stainless steel frame, cover it in doped fabric and fill it with gas bags lighter than we could do these days with Mylar and fancy plastics? biggrin

richebets

268 posts

227 months

Saturday 1st March 2014
quotequote all
i guess this airship is from the canned Usa " Walrus HULA" (Hybrid Ultra Large Aircraft) project

same type of airship was also tried in germany the "cargolift ag"

http://en.wikipedia.org/wiki/Cargolifter_AG

As i understood one of the reasons the german (and i guess usa) project failed was due to the fact they could not get the airship to hold in a stable safe landed state from a fully loaded to unloaded .

maffski

1,905 posts

188 months

Saturday 1st March 2014
quotequote all
richebets said:
i guess this airship is from the canned Usa " Walrus HULA" (Hybrid Ultra Large Aircraft) project
Not quite, it was built for the LEMV project, which in some respects seems to have been a Walrus lite (and in a change the US spent $300m building it and we've bought it for $300k).

richebets said:
same type of airship was also tried in germany the "cargolift ag"

http://en.wikipedia.org/wiki/Cargolifter_AG

As i understood one of the reasons the german (and i guess usa) project failed was due to the fact they could not get the airship to hold in a stable safe landed state from a fully loaded to unloaded .
There is one fundamental difference, and it's intended to deal with exactly that issue. Airlander isn't really an airship - it uses helium to offset most of it's own weight, but not the weight of the cargo so they never have to worry about controlling the buoyancy. It uses a lifting body, or vectored thrust to generate the remainder of the lift it needs.

ETA - the problem is it just doesn't seem to work very well, make it small enough to be practical (and not be blown around by the wind) and you don't get enough lift to be worth the bother, make it large enough to give you the lift and it's just too cumbersome - which is why the US dropped it. The LEMV was supposed to hover over an area for 20 days or so to provide surveillance, but it seems it was so overweight it could only hold itself up for 5 days. http://www.flightglobal.com/news/articles/us-army-...

Edited by maffski on Saturday 1st March 16:16


Edited by maffski on Saturday 1st March 16:21