The Naked Scientists

The Naked Scientists Forum

Author Topic: Is this the world's biggest helicopter?  (Read 7356 times)

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« on: 29/03/2009 19:07:31 »


It's the Hotelicopter - a 5-star flying hotel.

http://hotelicopter.com/


 

Offline DrN

  • Hero Member
  • *****
  • Posts: 815
    • View Profile
Is this the world's biggest helicopter?
« Reply #1 on: 29/03/2009 19:14:15 »
I can't see the picture. is it just me?

I mean just me who can't see it that is!  :D
 

Offline DrN

  • Hero Member
  • *****
  • Posts: 815
    • View Profile
Is this the world's biggest helicopter?
« Reply #2 on: 29/03/2009 19:15:27 »
Oh, it just appeared!!! Sorry!

Good grief, the person who designed this wasn't listening when it was said that size doesn't matter!
 

blakestyger

  • Guest
Is this the world's biggest helicopter?
« Reply #3 on: 29/03/2009 19:25:52 »
How on Earth does a thing like that get supported by those tilly little engine pylons? You'd never get me in that. :o
 

Offline latebind

  • Sr. Member
  • ****
  • Posts: 248
  • Hello World
    • View Profile
Is this the world's biggest helicopter?
« Reply #4 on: 29/03/2009 20:28:27 »
It looks like a Hybrid, a Heli-Plane if thats the right name :) or maybe an Aero-Copter :)

See the jet engines and wings on the pic...
 

Offline LeeE

  • Neilep Level Member
  • ******
  • Posts: 3382
    • View Profile
    • Spatial
Is this the world's biggest helicopter?
« Reply #5 on: 29/03/2009 20:54:36 »


It's the Hotelicopter - a 5-star flying hotel.

http://hotelicopter.com/
No, it's not, because it doesn't exist, but it does have a distinct resemblance to what is actually largest helicopter in the world and upon which it is surely based:

 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
Is this the world's biggest helicopter?
« Reply #6 on: 29/03/2009 21:32:12 »
That is amazing!! Very interesting idea in traveling and accommodations rolled into one!
 

Offline LeeE

  • Neilep Level Member
  • ******
  • Posts: 3382
    • View Profile
    • Spatial
Is this the world's biggest helicopter?
« Reply #7 on: 29/03/2009 21:47:14 »
That is amazing!! Very interesting idea in traveling and accommodations rolled into one!

It'll never fly.
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #8 on: 29/03/2009 22:46:32 »
LeeE - it's real & it has flown. Didn't you look at the website?

It's based on a Russian prototype; the Mil V-12. Is that what your pic is of?

EDIT: Just looked & yes it is.
« Last Edit: 29/03/2009 22:50:35 by DoctorBeaver »
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #9 on: 29/03/2009 22:54:19 »
I just looked at the spec for the Mil & it says it was capable of 260 km/h (140 kt). What does the 140 kt in brackets mean?
 

Offline JimBob

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 6564
  • Thanked: 7 times
  • Moderator
    • View Profile
Is this the world's biggest helicopter?
« Reply #10 on: 29/03/2009 23:17:12 »
Is that the torque the engines produce?
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #11 on: 29/03/2009 23:18:42 »
Power output of the engines was also specified..
 

Offline JimBob

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 6564
  • Thanked: 7 times
  • Moderator
    • View Profile
Is this the world's biggest helicopter?
« Reply #12 on: 29/03/2009 23:59:39 »
D'oh - it is probably the lifting capacity - that is rather straight forward as torque is measured in foot-pounds or kilogram-meters, isn't it?
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #13 on: 30/03/2009 00:02:05 »
But why would it be put in brackets after the top speed? Normally you'd get something like 56mph (80kph)
 

Offline JimBob

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 6564
  • Thanked: 7 times
  • Moderator
    • View Profile
Is this the world's biggest helicopter?
« Reply #14 on: 30/03/2009 00:19:00 »
It seems to mean kilotons to me.
 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
Is this the world's biggest helicopter?
« Reply #15 on: 30/03/2009 00:59:46 »
I don't know about that stuff but they already are taking reservations etc if you register and sign up they have three tours already arranged with take off dates and where they will be stopping The European tour  California, and I can"t remember the other.. one leaves like July 17th through the twenty-ninth or something like that with all the stops in between one stop is a three day stay can't remember where though... European tour will start at Heath row go to France and several other stops returning to the Heath row airport in London. ( Sorry bout the spelling!)
 

Offline justaskin

  • Sr. Member
  • ****
  • Posts: 123
    • View Profile
Is this the world's biggest helicopter?
« Reply #16 on: 30/03/2009 03:04:19 »
Knots(kt).Airspeed is measured in knots.Now if you multiply 140 by 8 and divide the result by 5 it should come out somewhere near 260 km/h.

Cheers
justaskin
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #17 on: 30/03/2009 09:43:30 »
Knots(kt).Airspeed is measured in knots.Now if you multiply 140 by 8 and divide the result by 5 it should come out somewhere near 260 km/h.

Cheers
justaskin

Oh ffs! I should have known that. D'OH at me!!

I've just noticed - the conversion factor from kph to kt is the same as kph to mph? That can't be right.
« Last Edit: 30/03/2009 09:45:58 by DoctorBeaver »
 

Offline Madidus_Scientia

  • Neilep Level Member
  • ******
  • Posts: 1451
    • View Profile
Is this the world's biggest helicopter?
« Reply #18 on: 30/03/2009 12:42:00 »
Yeah was gonna say knots, duh
 

Offline LeeE

  • Neilep Level Member
  • ******
  • Posts: 3382
    • View Profile
    • Spatial
Is this the world's biggest helicopter?
« Reply #19 on: 30/03/2009 17:04:53 »
I didn't actually realise that someone was really claiming to be making it - lol - I thought it was just someone's 3D art.

Yes, the pic I posted was of the Mil V-12, and yes, the blurb on the Hotelicopter website (which is a bit flakey in terms of performance - I needed several attempts to open some pages) says that it is indeed based on the V-12.  The V-12 has undoubtedly flown, and I think it may have set a couple of records, but all the pics of the hotelicopter I saw on the site appear to be 3D renderings, even the 'photos' in the gallery section, which is a bit dodgy as it's not made clear that the pics aren't real.

As evidence for them being 3D renders and not real photographs, have a look at these two pics (which may or may not load due to the hotelicopter web-site fragility)




in both of them, the blurred rotor tips describe a flat edge, whereas they should be slightly arced - odd really, because it would be easy enough to fix.  There are other aspects of the pics too, that make them stand out as 3D renders and not real photographs to me, but they're harder to define; things like the cleanliness of the image, the smoothness of the hull, with no little irregularities or lumps and bumps, and some slightly odd lighting effects.

In practical terms, I also have to wonder about the need to add 4 x 75000lb thrust engines just for forward propulsion when it's going to be slower than the V-12, which needed no additional forward propulsion engines.  In any case, 300000lbs of forward thrust seem well over the top; the Boeing 747-100, with a MTOW of 735000 lb has only 4 x 46500-50100lb thrust engines, for a max of 204000lbs total thrust.  Then there's the issue of where all the fuel is going to be carried.  The only part of the fuselage that doesn't have windows in it, and which isn't therefore occupied by people, is the area around the rear engines.  If all the fuel is stored here though, it'll throw out the CoG as it's used up because it's some way aft of the rotors.  Twin rotor helicopters like the Chinook, having rotors fore and aft, can compensate for a degree of change in the CoG but where the rotors are side-by-side, like the hotelicopter, you can't and it's the same as having a single rotor from the point of view of fore and aft CoG changes.

I'm afraid that I don't believe the hotelicopter is real.  Nice attempt though.
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #20 on: 30/03/2009 17:22:09 »
LeeE:

In the original pic that I posted there are "lumps and bumps" on the fuselage & the rotors are not straight.

You said "Look at these 2 pics" but there's only 1.

I assume having the rotors on spars to the sides allows for longer rotors than having them fore & aft. But you are certainly correct about the stability issues you raised. It seems to me that the vehicle would need to be perfectly balanced at all times and, as you rightly stated, the only apparent area for fuel is at the rear.

My first thought also was that it isn't real. There's no entry about it in Wiki either. I would also have thought that any company with the sort on finances they would need for a project such a this would be able to afford a more robust website. Although it looks good, it is decidedly shaky.
 

Offline LeeE

  • Neilep Level Member
  • ******
  • Posts: 3382
    • View Profile
    • Spatial
Is this the world's biggest helicopter?
« Reply #21 on: 30/03/2009 17:49:08 »
Hi Doc.  When I referred to lumps and bumps, I didn't mean 'detail' but assembly irregularities.  Unless the entire fuselage came out of a mold, the outer surface you see is made up from lots of individual panels and in practice it's impossible to fit them together as smoothly as it appears in the pictures.

The reason there was only one pic is due the the flakey web-site - when you next try looking at this page both, neither, or one of the other might load.  This is why some people couldn't see the first image.

When I referred to the rotors being straight-edged, I didn't mean that they didn't droop when stationary but that the arc that they sweep while spinning has a straight-edged 'base' when it should be curved.
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Is this the world's biggest helicopter?
« Reply #22 on: 30/03/2009 17:56:37 »
Quote
When I referred to the rotors being straight-edged, I didn't mean that they didn't droop when stationary but that the arc that they sweep while spinning has a straight-edged 'base' when it should be curved.

Ah, right.

I've just had a thought. Look at the colour scheme. Easyjet?

Speaking of colours - look at the difference between the pic I posted & those you did. In yours it's a definite orange whereas in mine the colour is more yellowy.
« Last Edit: 30/03/2009 17:58:53 by DoctorBeaver »
 

Offline Don_1

  • Neilep Level Member
  • ******
  • Posts: 6890
  • Thanked: 7 times
  • A stupid comment for every occasion.
    • View Profile
    • Knight Light Haulage
Is this the world's biggest helicopter?
« Reply #23 on: 30/03/2009 18:42:55 »
What point would there be in a bedroom in a helicopter? It would be far too noisy to get any sleep.

With the rotor blades on either side, I think stability would be a hell of an issue.

Also folks, it is fast approaching April 1st.
 

Offline Don_1

  • Neilep Level Member
  • ******
  • Posts: 6890
  • Thanked: 7 times
  • A stupid comment for every occasion.
    • View Profile
    • Knight Light Haulage
 

The Naked Scientists Forum

Is this the world's biggest helicopter?
« Reply #24 on: 01/04/2009 13:41:49 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums
 
Login
Login with username, password and session length