Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

Future Carrier (Including Costs)

Wikiposts
Search
Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

Future Carrier (Including Costs)

Thread Tools
 
Search this Thread
 
Old 19th Dec 2017, 08:43
  #4701 (permalink)  
 
Join Date: Apr 2010
Location: London
Posts: 7,072
Likes: 0
Received 0 Likes on 0 Posts
Prop shaft seals are notoriously hard to get right. Until you test hard at sea in actual loadings its hard to predict degree and mode of flexing
Heathrow Harry is offline  
Old 19th Dec 2017, 08:59
  #4702 (permalink)  
 
Join Date: Sep 2009
Location: over the rainbow
Age: 75
Posts: 562
Likes: 0
Received 0 Likes on 0 Posts
It was enamel paint accidentally spilled during painting, which blocked the test cock on one of the inner tube doors which sank the submarine HMS Thetis in 1939 whilst undergoing sea trials off the North West coast.
roving is offline  
Old 19th Dec 2017, 09:15
  #4703 (permalink)  
 
Join Date: Jul 2003
Location: Brum
Posts: 852
Likes: 0
Received 1 Like on 1 Post
Originally Posted by roving
It was enamel paint accidentally spilled during painting, which blocked the test cock on one of the inner tube doors which sank the submarine HMS Thetis in 1939 whilst undergoing sea trials off the North West coast.
What on earth does that have to do with the QE...??
Nige321 is offline  
Old 19th Dec 2017, 09:50
  #4704 (permalink)  
 
Join Date: May 2006
Location: Dublin
Posts: 841
Likes: 0
Received 3 Likes on 2 Posts
Will the repair require some special force and a Navy Seal?

No, don't get up ... I'll let myself out.



JAS
Just a spotter is offline  
Old 19th Dec 2017, 10:04
  #4705 (permalink)  
ImageGear
Guest
 
Posts: n/a
"Just enough water to keep her sweet" as the Salesman said but 200 litres an hour? Presumably it's being pumped over the side with a little bit of bunker oil to "sweeten" it.!!!

Imagegear
 
Old 19th Dec 2017, 12:26
  #4706 (permalink)  
 
Join Date: May 2002
Location: Downeast
Age: 75
Posts: 18,290
Received 518 Likes on 216 Posts
What kind of Warranty was provided.....is it watertight!
SASless is offline  
Old 19th Dec 2017, 12:39
  #4707 (permalink)  
 
Join Date: Jul 2006
Location: London
Age: 44
Posts: 752
Likes: 0
Received 8 Likes on 3 Posts
Shock news that ship takes in small amount of water, as does every other ship built in entirety of human existence...
Jimlad1 is offline  
Old 19th Dec 2017, 12:43
  #4708 (permalink)  
 
Join Date: Sep 2009
Location: over the rainbow
Age: 75
Posts: 562
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Nige321
What on earth does that have to do with the QE...??
The point may be too subtle. The example I gave demonstrates that no matter how much care is taken when building these sea going vessels, they may require repairs/modifications during or following sea trials to make them water tight. The submarine was raised, renamed and was used during the War.
roving is offline  
Old 19th Dec 2017, 18:07
  #4709 (permalink)  
 
Join Date: Apr 2010
Location: London
Posts: 7,072
Likes: 0
Received 0 Likes on 0 Posts
Roving is right... up to a point

Sea trials are to test things you cant test in the dockyard.

IIRC the "Dreadnaught" almost finished up doing ever decreasing circles in mi Atlantic on her trials in ?1906
Heathrow Harry is offline  
Old 19th Dec 2017, 20:39
  #4710 (permalink)  
 
Join Date: Nov 2007
Location: UK
Posts: 327
Received 4 Likes on 4 Posts
Great news. We build a huge complex prototype to a completely untried design and the most serious problem to emerge in trials appears to be a dodgy propshaft seal. BZ to all concerned.
Frostchamber is offline  
Old 19th Dec 2017, 22:50
  #4711 (permalink)  
 
Join Date: Mar 2009
Location: SW England
Age: 77
Posts: 3,896
Received 16 Likes on 4 Posts
Leaking at 200 litres an hour - sounds a lot

Converts to 6 pints a minute. An AB with a jug could deal with that!
Tankertrashnav is offline  
Old 20th Dec 2017, 11:24
  #4712 (permalink)  
 
Join Date: Apr 2010
Location: London
Posts: 7,072
Likes: 0
Received 0 Likes on 0 Posts
This mornings Times says every british destroyer, frigate & Cv is in port right now in the UK.......
Heathrow Harry is offline  
Old 20th Dec 2017, 12:05
  #4713 (permalink)  
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 530
Received 174 Likes on 93 Posts
Perhaps the Times has neglected to consider the time of year.


As it has also neglected to consider that with the exceptions below, pretty much all UK forces are currently at their "home" locations.


There's something like 8 or 9 ships/subs deployed worldwide, the army presence in Iraq, Afghanistan and the Baltics and the Akrotiri-based contribution to Shader.
Not_a_boffin is offline  
Old 20th Dec 2017, 12:08
  #4714 (permalink)  
 
Join Date: May 2002
Location: Downeast
Age: 75
Posts: 18,290
Received 518 Likes on 216 Posts
Operational commitments end for a Fortnight at Christmas do they?
SASless is offline  
Old 20th Dec 2017, 12:17
  #4715 (permalink)  
 
Join Date: Apr 2010
Location: London
Posts: 7,072
Likes: 0
Received 0 Likes on 0 Posts
Many of them seem to be buggered TBH............
Heathrow Harry is offline  
Old 20th Dec 2017, 12:23
  #4716 (permalink)  
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 530
Received 174 Likes on 93 Posts
Originally Posted by SASless
Operational commitments end for a Fortnight at Christmas do they?

Go right ahead and identify those requiring a deployed DD/FF or major warship at this particular moment.....


The operational commitments that need to be filled at this precise moment are filled. I think they call it programming....
Not_a_boffin is offline  
Old 20th Dec 2017, 12:26
  #4717 (permalink)  
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 530
Received 174 Likes on 93 Posts
Originally Posted by Heathrow Harry
Many of them seem to be b8ggered TBH............


Have you been frequenting those establishments again?
Not_a_boffin is offline  
Old 20th Dec 2017, 12:34
  #4718 (permalink)  
Ecce Homo! Loquitur...
 
Join Date: Jul 2000
Location: Peripatetic
Posts: 17,448
Received 1,603 Likes on 735 Posts
Well there are the Antarctic patrol, Falklands patrol and Atlantic patrol; of which the Antarctic survey ship can fulfill one, but not all three. Plus there is the Gulf patrol. At home there is the FRE/TAPS, but it is difficult to assess if any of those in port are at a readiness to fulfill the role.

https://publications.parliament.uk/p.../221/22113.htm
ORAC is online now  
Old 20th Dec 2017, 12:59
  #4719 (permalink)  
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 530
Received 174 Likes on 93 Posts
Originally Posted by ORAC
Well there are the Antarctic patrol, Falklands patrol and Atlantic patrol; of which the Antarctic survey ship can fulfill one, but not all three. Plus there is the Gulf patrol. At home there is the FRE/TAPS, but it is difficult to assess if any of those in port are at a readiness to fulfill the role.

https://publications.parliament.uk/p.../221/22113.htm
Straight from your link -

Antarctic Patrol is undertaken by the Royal Navy’s Ice Patrol Ship, HMS PROTECTOR, in the South Atlantic Ocean.

The Falkland Islands Patrol Task consists of a single warship (an OPV) stationed around the Exclusive Economic Zone of the Falkland Islands. It forms part of British Forces South Atlantic Islands and aims to reassure the inhabitants of the region and maintain British sovereignty. HMS CLYDE is the current unit undertaking this task and uses the deep water naval base facilities of Mare Harbour, East Falkland.

APT(N) is the Royal Navy’s commitment to secure and protect the interests of Great Britain and her Overseas Territories in the regions of the North Atlantic and the Caribbean. The deployment also conducts counter narcotics missions and provides humanitarian assistance during the hurricane season. The task is typically carried out by either an Offshore Patrol Vessel (OPV) or Royal Fleet Auxiliary (RFA). That'll be RFA Mounts Bay at the minute.

The Royal Navy maintains a regular (not permanent) presence in the South Atlantic and West Africa to provide reassurance to British interests, such as the sovereignty of the Falkland Islands and South Georgia, while also supporting British Forces South Atlantic Islands. The commitment can be fulfilled by a frigate, destroyer or RFA vessel.

The Royal Navy maintains a continued maritime presence in the Gulf and Indian Ocean regions to protect and secure the nations many political and commercial interests. The enduring commitment usually consists of an escort (a guided-missile destroyer or frigate), four mine countermeasure vessels and a supporting RFA Bay Class. As of 2015, the UK has a permanent operating base in the region, HMS JUFAIR, located in Bahrain. - Which would have been fully met had Diamond not had her propulsion casualty. Choice between generating a ship at short notice for a nine-month deployment out East or gapping till a programme can be re-jigged. Undoubtedly not helped by the preps for T45 PIP, but not the end of the world either. The other element of KIPION (RFA plus 4 MCMV) on task.

The FRE/TAPS is a single frigate maintained at high-readiness in home waters, ready to react when required in support of homeland defence. Currently a T23 and ready.

Sending ships away for Xmas tends to have a somewhat adverse effect on retention if done without good reason. Looking after your people is a lesson the RN has learned the hard way in recent years.
Not_a_boffin is offline  
Old 21st Dec 2017, 08:45
  #4720 (permalink)  
 
Join Date: Feb 2001
Location: Under the clouds now
Age: 86
Posts: 2,503
Received 13 Likes on 10 Posts
I wonder if Cunard has the same problem with their Queen Lizzie?
brakedwell is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.