HMS Queen Elizabeth

[MartG]

mikal83 said:

Seight_Returns said:

mikal83 said:

Anyone else have a laugh at the above!

Or we could just answer what appeared to be well meant question.

Gas Turbines are used in a wide variety of aviation, power generation, industrial and marine applications. One of their advantages is their flexibility with regard to their sources of fuel - they can be adapted to run on almost any flammable gas or light distillate petroleum products - or even heavy oils with appropriate pre heating.

I believe that in a the case of QNLZ and most (all?) RN ships they use MGO (essentially diesel) which is compatible with the gas turbine and diesel propulsion and power generation requirements across the rest of the Fleet. MGO is freely commercially available anywhere QNLZ is likely to come alongside and she can be refueled at sea by RFAs.

One of the reasons nuclear power was not considered (apart from cost) is that many foreign ports will not allow a nuclear powered ship.

They top up a jet aircraft with calor gas nowadays? News to me, I've certainly never done that. Must new tech!

If you really havent a clue WTF your on about, might be best to not type.

You are obviously unaware that emergency backup gas turbines installed at several nuclear power stations run on gas

[98elise]

wrencho said:

Just caught up on the documentary. Very interesting!

Probably a stupid question but if she is powered by gas turbines how much gas storage would be required? Wouldn't that limit the scope of her operations because not all ports can readily refuel her?

Layman answer, Gas turbines = jet engines. They can run on just about anyrhing that will burn. On ships it's fuel oil.

On Ark Royal we had 4 Olympus gas turbines, similar to Concorde engines. They produced 100,000 hp

[Europa1]

98elise said:

Layman answer, Gas turbines = jet engines. They can run on just about anyrhing that will burn. On ships it's fuel oil.

On Ark Royal we had 4 Olympus gas turbines, similar to Concorde engines. They produced 100,000 hp

Why couldn't Mikal83 have put that, instead of being condescending?

[CrutyRammers]

Someone get out the wrong side of bed this morning?

[junglie]

We try not to use MGO as it is less refined than we would like.

We can use it but not preferred.

[mattyn1]

That escalated quite quickly!

[Europa1]

Phud said:

Different cummerbunds relate to different roles, ship, squadron, so engineers might have a spanner, each squadron has a different one, 814 was tiger stripes, 820 a dolphin 849 a lighting flash.

Thanks. My question was more around why they are sometimes worn on duty, as opposed to the different types - eg on the bridge on one occasion the captain was wearing one, another time another officer was walking below decks wearing one.

[ecsrobin]

Europa1 said:

Thanks. My question was more around why they are sometimes worn on duty, as opposed to the different types - eg on the bridge on one occasion the captain was wearing one, another time another officer was walking below decks wearing one.

I assumed they had a formal function to attend but still had some duties to carry out?

[Europa1]

ecsrobin said:

Europa1 said:

Thanks. My question was more around why they are sometimes worn on duty, as opposed to the different types - eg on the bridge on one occasion the captain was wearing one, another time another officer was walking below decks wearing one.

I assumed they had a formal function to attend but still had some duties to carry out?

I'm not sure - see from about 21 minutes 30 seconds in https://www.bbc.co.uk/iplayer/episode/m0009v3f/bri... for an example of what I'm on about.

[ecsrobin]

Europa1 said:

I'm not sure - see from about 21 minutes 30 seconds in https://www.bbc.co.uk/iplayer/episode/m0009v3f/bri... for an example of what I'm on about.

I saw the programme. I’m saying I assumed it was due to a formal event following their duties, I’m with some RN later will ask.

[hidetheelephants]

mikal83 said:

If you just write ste, as you have, be expected to have the piss taken. So as you have written, dont be a dick.

Everything written by Seight_Returns is correct. Perhaps take that advice rather than dish it out?

[Speculatore]

ecsrobin said:

I saw the programme. I’m saying I assumed it was due to a formal event following their duties, I’m with some RN later will ask.

You are referring to 'Cummerbunds'. Tradtionally all black they are worn with dinner suits or formal evening wear. In the RN the all black ones are worn by the 'Executive' department with other departments using their own colour, for example the engineers would wear green ones.
Many decide to have their own ships crest on the front on in the Fleet Air Arm the squadron crest or emblem as previously mentioned.

When onboard they are worn as part of night clothing specifically when carrying out a formal function like 'evening messdeck rounds.

The wardroom will wear them for dinner as part of night clothing normally with a short sleeved open neck shirt (Tropical Shirt).

A selection of mine below;




Trivia - Some Cummerbunds come with pleats. These are to be worn with the open part of the pleat pointing upwards as traditionally it is where gentlemen used to place their opera tickets.

[98elise]

Europa1 said:

Phud said:

Different cummerbunds relate to different roles, ship, squadron, so engineers might have a spanner, each squadron has a different one, 814 was tiger stripes, 820 a dolphin 849 a lighting flash.

Thanks. My question was more around why they are sometimes worn on duty, as opposed to the different types - eg on the bridge on one occasion the captain was wearing one, another time another officer was walking below decks wearing one.

Cummerbunds are worn in the mess (wardroom) for evening/formal dress.

On duty they would wear their normal working uniform.

If the captain got called to the bridge (or even just dropped by) he wouldn't change onto his working uniform.

Edited by 98elise on Monday 2nd December 17:43

[Europa1]

Speculatore said:

You are referring to 'Cummerbunds'. Tradtionally all black they are worn with dinner suits or formal evening wear. In the RN the all black ones are worn by the 'Executive' department with other departments using their own colour, for example the engineers would wear green ones.
Many decide to have their own ships crest on the front on in the Fleet Air Arm the squadron crest or emblem as previously mentioned.

When onboard they are worn as part of night clothing specifically when carrying out a formal function like 'evening messdeck rounds.

The wardroom will wear them for dinner as part of night clothing normally with a short sleeved open neck shirt (Tropical Shirt).

A selection of mine below;




Trivia - Some Cummerbunds come with pleats. These are to be worn with the open part of the pleat pointing upwards as traditionally it is where gentlemen used to place their opera tickets.

Thanks! - I think "night clothing" must be the answer to my question. See here just after 40 minutes https://www.bbc.co.uk/iplayer/episode/m000b1jy/bri... - it's not a formal occasion, the shirts are open necked, but the cummerbunds are out in force.

[Phud]

Europa1 said:

Thanks! - I think "night clothing" must be the answer to my question. See here just after 40 minutes https://www.bbc.co.uk/iplayer/episode/m000b1jy/bri... - it's not a formal occasion, the shirts are open necked, but the cummerbunds are out in force.

Was also known as red sea rig, two ways the buggers would fine you, going astern or cummerbund upside down..

[Mave]

mikal83 said:

They top up a jet aircraft with calor gas nowadays? News to me, I've certainly never done that. Must new tech!

If you really havent a clue WTF your on about, might be best to not type.

The design lineage of the gas turbines fitted to QE goes via the Industrial Trent which was designed to run on gas or liquid fuels...

[Seight_Returns]

And 30% of the UK's electricity generating capacity comes from gas turbines run on natural gas. Not much of it from Calor Gas though, they save that to top up the F35s ...

[98elise]

Europa1 said:

98elise said:

Layman answer, Gas turbines = jet engines. They can run on just about anyrhing that will burn. On ships it's fuel oil.

On Ark Royal we had 4 Olympus gas turbines, similar to Concorde engines. They produced 100,000 hp

Why couldn't Mikal83 have put that, instead of being condescending?

A lot of people act like they were born with knowledge and never had to learn anything. It's not like gas turbine theory is taught at school.

[Seight_Returns]

I'd like to think that Mikal83's comments were directed towards the poster who asked the question - not my reply - but whatever.

Just to be pedantic, as Junglie rightly points out from first hand knowledge, the diesels and gas turbines onboard RN warships use a military grade of diesel designated F-76, which has tighter tolerances than MGO - although as per Junglie's post they will use MGO if they have to. The QE carrier's are no more constrained by fuel availability than other British or NATO warships.

I wrote the bunker fuel purchasing strategy for a large commercial organisation that operates 700+ bulk carriers, so I'd like to think that I have at least "a clue" about what I'm talking about - but I've learnt something I didn't know from a fellow poster, which I'd like to think is why most of us come here.

Edited by Seight_Returns on Tuesday 3rd December 11:50

[98elise]

Seight_Returns said:

I'd like to think that Mikal83's comments were directed towards the poster who asked the question - not my reply - but whatever.

Just to be pedantic, as Junglie rightly points out from first hand knowledge, the diesels and gas turbines onboard RN warships use a military grade of diesel designated F-76, which has tighter tolerances than MGO - although as per Junglie's post they will use MGO if they have to.

I wrote the bunker fuel purchasing strategy for a large commercial organisation that operates 700+ bulk carriers, so I'd like to think that I have at least "a clue" about what I'm talking about - but I've learnt something I didn't know from a fellow poster, which I'd like to think is why most of us come here.

The poster asked a question, Mikal83 took the piss. You gave a reasonable (and in depth) reply.

My comments were based on Mikal83's response, rather than yours.