As far as I can see all the points have been answered, I would only add:
- I am not talking about an exact copy of a Wasp, even the JC1 at 27,000t the dock is a large proportion of the ship.
- You have no real evidence 2 decks & 4 lifts could out perform 3 decks & 6 lifts
- The point you miss, mine suggestion is more flexible and much more affordable, even if the CVFs are better (lets disagree on this one) the cost was clearly unaffordable, particularly when you look at the massive increase in the assault capability.
- The Roundtables were actually cold war warriers designed to support armoured movements between Marchwood and the BOAR
I see you are still building lego ships,
From your earlier post, "- Again excluding LPH replacement, I can't see that 2 separate designs, 4 hulls, c167,000t c 1 design, 3 hulls, 135,000t can be cheaper.
- The USMC ships are designed with much bigger docks (they can hold 12 LCMs!!) and far greater numbers of marines than the UK is ever likely to deploy, so the dock/size and accommodation would have to be far less, and the aviation facilities better than an Invincible (3 would be in the region of what is claimed for 2 CVF).
There would be scope to have 50,000t ships and still cheaper. Merging the LPH, LPD & CV roles, would have made a clean far more flexible fleet. Better than the NM, 1 (maybe 2) CV & 3 LHD. "
In summary your hindsight version of history replaces any attempt to replace the 3 Invincibles with 2 QE's but we would get 3 45,000 tonne ships that do all the sea control and amphibious work?
When are they ordered? the decision to replace Fearless and Intrepid was made in 1991 with tenders around 1994 for the 2 Albions, the invitation to tender for Ocean was made in 1992. The Invincibles were commissioned in 1980,1982 and 1985.
Was it likely that the UK would ditch perfectly good carriers not much more than a decade old, to build a new class of 3 ships of complexity (CVS plus dock, vehicle deck and accommodation for troops) of a type that only the USN could at the time afford, at a time when the UK Govt was still searching for savings in budgets? I don't think it is, nor do I think that UK industry at that time could have given a very precise cost estimate, particularly as no ship of that type had ever been built in the UK. As Swerve pointed out my wiki research for costings was inaccurate by some degree.
Onto your lego ship, so now it could have less amphibious capability than the US ships? how much less?10%, 25%, 50%. would it be an Invincible with a bolt on Albion? 350 marines? 4 LCU. What engines would you chose? diesel for 18 knots, or in the time period, do you go with Olympus? Invincible had 4 GT's, how many in your 50,000 tonne ship? 6? 8? they are thirsty beasts.
The question I would ask is why not propose a traditional carrier, maybe of conventional propulsion , the size of CdG, which would be a relatively sound point to argue? although the RN did the study, 45,000 lost to 65,000 tonne on efficiency and future growth margins at least you would be in some sound company. Instead you are arguing for about the third time for a complex ship, with unproven advantages , ordered in a time period that doesn't seem to fit.
The replacement for Ocean and the Albions if there ever is the budget, should be along the lines if the Mistral, or at least the nice design on the BAe website, 20,000 ish tonnes, built cheaply. But Carrier strike, or carrier enabled power projection whatever its now called requires a proper carrier, a dock would be a very expensive addition that would make it more costly and less effective for the primary role.
What do you mean by lifts? ships as in "lifting equipment" or lifts as in lifting aircraft from hanger to deck?
in my view the more hulls the better, as pointed out numerous times,they can only be in one place at one time, so I would keep the roles separate.