dark light

StevoJH

Forum Replies Created

Viewing 15 posts - 211 through 225 (of 987 total)
  • Author
    Posts
  • in reply to: CVA01 and CVV compared #2000712
    StevoJH
    Participant

    Current total budget for two CVFs is £5 billion, i.e. $7.5 billion, including design, infrastructure (modifications to building dock, etc.), & increased costs due to the politically mandated stretching out of building. That’s $3.75 billion each, but a third might be buildable for $3 billion or so.

    Gerald R Ford is currently budgeted at $8.3 billion, I think, not including EMALS development, but it might include ship design.

    Maybe the number i’m thinking of includes EMAL’s then. For some reason 12 or 16 Billion keeps springing to mind…..

    in reply to: CVA01 and CVV compared #2000751
    StevoJH
    Participant

    Any idea how in y2010 dollars/pounds the flattops compare to buy, then to operate?

    Fairly sure a QE is ~$4 Billion, Nimitz is $8+ billion. Ford is even more expensive.

    Due to additional aircraft and much higher crewing requirements Nimitz would likely cost much more to operate per year then QE. I’d wouldn’t be surprised if it cost 3 or 4 times as much per year.

    in reply to: Beauty Contest: Tejas vs Gripen #2418263
    StevoJH
    Participant

    LCA looks dated. Like it belongs in the 1960’s and 70’s with the Mirage III.

    in reply to: CVA01 and CVV compared #2000762
    StevoJH
    Participant

    Maybe the larger crew is beacuse the US carriers normally deploy for longer, with a much bigger airwing(than any other navy in the world) and most importantly have to keep that airwing combat ready 24/7 as they are almost always in operational theatres carrying out combat missions or could be deployed if needed.Im not saying that other nations carriers are not in operational theatres also but it would obviously take a much bigger crew to keep 60-70 military aircraft on an US carrier operational than say 20-25 onboard the CdG and when you think about it the crew size doesnt seem to be too unproportional.CdG=1950 crew to keep 25aircraft flying compared to 5000 crew to keep 70 aircraft flying.

    Doesnt work like that.

    De Gaule
    Complement:
    Ship’s company: 1,350
    Air wing: 600
    Aircraft: ~30

    600/30=20 Aircrew/Aircraft

    QE Class
    Complement: 600
    Aircrew: Up to 900
    Aircraft: 40

    900/40=22.5 Aircrew/Aircraft

    Nimitz
    Ship’s company: 3,200
    Air wing: 2,480
    Aircraft: Wiki give 85-90, Its Currently ~70 though….

    2480/90=27.5 Aircrew/Aicraft
    2480/70=35.42 Aircrew/Aircraft

    So aircrew is *fairly* similar. However compare the Size of the ships complement though, while remembering that QE is >2/3 the size of Nimitz.

    in reply to: CVA01 and CVV compared #2000871
    StevoJH
    Participant

    http://www.mod.uk/NR/rdonlyres/584CAAE8-8B39-4271-86E8-86320C7804B7/0/Carrier3_761x437.jpg

    How is this for starters?

    in reply to: CVA01 and CVV compared #2000878
    StevoJH
    Participant

    Whats wrong with 2 islands. Their properly placed for their respective jobs and are perfect for the gas turbine placement. How would you have placed them and routed the exhausts and air intakes and mounted the radars ect so they don’t interfer with each other. Look at how much deck space is taken up on the invincibles doing the same job.

    Yup, I think its quite elegent. Keeps the GT’s high up in the hull to minimise the amount of space taken up by piping, plus probably makes them easier to remover and replace.

    The two islands allows them to follow the “unit” arrangment with propulsion with the GT’s far enough apart that a single hit cannot take out both engine rooms.

    Whoever thought that up deserves a drink or two.

    in reply to: RAN Sub force- to nuke or not to nuke #2000889
    StevoJH
    Participant

    Right…..

    Current Euro conventional Boats are out, they are all too small. And many of the problems with collins stem from trying to Scale up smaller swedish designs. This includes both S-80 and Scorpene. Oh, and Scorpene was/is a joint Navienta/DCNS design, except the Spanish changed their minds on ordering it and purchased S-80 instead.

    Current AIP tech is out, it was trialed on Collins and canned, with the space assigned to it on the boats given off for other equipment (see posts by gf0012-aust on various boards).

    I like Super capacitors replacing current batteries, but they still don’t have high enough energy density to do the job. Though that could potentially change in the next 10-15 years.

    I like the tea kettle type reactors, as the numbers being advertised for some of them suggest that 1-2 could replace the entire diesel-electric system of the collins class from memory (there was one particular article on the Australian section of Strategy Page one of the posters found somewhere).

    However if you are going to install tea kettle type reactors, in my opinion you might as well just go all the way and build proper SSN’s, preferrably either Astute or Virginia class. Oh, and fairly sure the Labor Party is massively anti-nuclear, Liberals are/were a bit more sensible on the idea.

    in reply to: Aircraft falling off ships flight decks #2001913
    StevoJH
    Participant

    Didn’t Illustrious or Ocean lose a towing vehicle off the side of the carrier and have a merlin pretty much hanging over the water on the edge of the flight deck? Last year or the year before, in the vicinity of Suez from memory?

    in reply to: Oman in talks to buy Eurofighter Typhoons #2390181
    StevoJH
    Participant

    4 Hawks. Assuming training/maintenence and the fact some training has to be done with formation lfying, this is hardley enough for their present fleet.

    If we go with the most recent aviation report on RAFO in AFM, Oman is very happy with its F-16s.

    Thats not hersay, that is qouting Omani officers.On the record.

    They can also put pilots through other nations training programs such as the UK, US, Saudi or Australian programs.

    They could also possibly benefit from situations such as those that the RAF and RAAF have benefited from, for example, with acquiring pilots previously serving with airforces such as the Rhodesian Air Force and RNZAF.

    Edit: Oh, and 24 airframes is enough for a single operational squadron plus a small OCU with a few left over airframes in maintenance. An example of this would be the Australian F-111 fleet and now F-18F fleet.

    in reply to: 4.99 generation fighter #2400098
    StevoJH
    Participant

    There is the use of radar blockers in the nozzle for one, and secondly exactly how many angles would a radar be able to view directly inside that nozzle? At most, there’s a limited cone that would be vulnerable.

    Whats a radar blocker? You mean an S-bend?

    Wouldn’t that be best described as a radar redirector?

    in reply to: BAE wins £127m contract to design Navy warship #2003826
    StevoJH
    Participant

    Interesting to read that a Chinook-capable flightdeck is still considered. The consequences of that are bigger than most realize.

    When the Dutch decided that the JSS had to be able to facilitate 2 chinook heli-spots on its deck they found it to be very difficult. This requirement determined the size (length) of the beast.

    The SHOL’s of a Chinook are very very restrictive. The only data that is available about heli-spot size and wind-limits are for landbased operations as Boeing never conducted flight tests and made regulations for maritime use.

    My guess is that a Chinook-capable flight deck has to be at least 45m in length, of which at least 10 meters is clearance of the superstructure as there are no SHOL regulations concerning turbulence caused by this superstructure.

    It simply means that the flight deck will be the same size as the one that the T45’s have, which makes perfect sense to me. All ships having an identical flight deck layout would make training easier.

    in reply to: BAE wins £127m contract to design Navy warship #2003836
    StevoJH
    Participant

    Reliance on US probably false

    Provisional Data for frigate type 26:
    – 141m long

    – Displacement: 6850 tons

    – It is also anticipated that the Type 26 will have an ether all electric or hybrid electric propulsion system providing a range of 7000nm at 18 knots. The ships compliment is expected to be in the range of 150 plus an embarked force of over 30.

    – Main gun option: refurbished 114mm weapon (in case of heavy budgets cuts/limits :D;)) or 127mm (US or more likely the new italian 5″ mount) or 155mm (BAE systems mount)

    – Equipped with a towed low frequency sonar array and two launchers (2×16 ?) for the Future Local Area Air Defence (Maritime) system firing the Common Anti Air Modular Missile (PAAMS ?, aster 15 ?), maybe 32 VLS ?

    – Other options include a vertical launch system for Tomahawk, SCALP or a modified GMLRS

    – CIWS: Use of Phalanx by 2020 is not a great option….maybe the RAM ?

    – Aviation facilities include a “Chinook” flight deck and hangar for a Merlin and UAV, the UAV possibly housed in a supplementary ‘dog kennel’ hangar.

    – Beneath the flight deck will be a large mission bay and stern dock to hold 4 9m RHIB’s, a torpedo system and a wide variety of mission modules.

    – It is being termed the ‘Combat Ship’ and likely to be the larger of the Future Surface Combatant, so the C1/C2 concept seems to be still alive.

    – Unit cost: Unknow, demand to martian 😀 but probably around the cost of 4-5 F-35B :D:rolleyes::dev2:

    – Quantity 😀 between 2 and 12 😀

    Err, I was talking about problems with the RAN buying it, not the RN. And it sounds like 16 VLS cells with 64 CAMM, Aster wont be fitted.

    in reply to: BAE wins £127m contract to design Navy warship #2003861
    StevoJH
    Participant

    ill concede that anything is possible but it just doesnt seem that anything to date suggest they want a long range area air defense ship more then the Hobart.

    BMD was listed in the white paper as a role for the ANZAC class replacement…..

    in reply to: 4.99 generation fighter #2400564
    StevoJH
    Participant

    Lots of planes can run down an F-111 when it’s low level. They overtake it at altutide and shoot the fish in the barrel. An F-111 at altitude is another matter. An F-111F can reach Mach 2.5 but even at Mach 2 it’s going to take a Typhoon a LONG time (if ever) to reel that sucker in in a tail chase and an F-111 has a lot of fuel.

    And again, if you are in a tail chase with an F-111 you have already lost since its likely that its already dropped its ordinance.

    in reply to: BAE wins £127m contract to design Navy warship #2003907
    StevoJH
    Participant

    the F100 will be equipped with SM2/6 the new frigates wont be, and after all the money the Australians have dumped into their own indigenous electronics they will be using that which have been made specifically for ESSM and other jointly developed USN-RAN systems.

    I wouldn’t be so sure, about them not having SM2/6. CEA Technologies is devoping a scaled up more powerful version of CEAFAR that they are calling AUSPAR, I havent seen many details around, but wouldn’t be surprised if it had the range to use SM-6.

    The RAN bought Aegis for the CEC capability, not neccessarily the combat system itself.

Viewing 15 posts - 211 through 225 (of 987 total)