1805, you cant but have noticed that the UK is positioned in the North Atlantic , if we are engaged in any operation it is likely to be at huge distances from the UK, that is why the RN has significant differences in doctrine to some other navies, we have significant amphibious capabilities, RFA numbers and have demonstrated an ability to sustain high intensity operations a long way from home.
Also battlegroups, or task forces, would in the face of a serious threat zig zag about at a high speed, 15 knots or so , would they not? Could an SSK keep up with the carriers and amphibs, 1000's of miles from home, could an SSK actually protect your major units, can you refuel a sub at sea in heavy seas or do they need a sheltered area? I dont know?
I don't know but would zig zaging work against homing torpedos and sub launched sea skimming missiles do navies still do this? If we acting with USN they would have SSNs if we need them.
As to a force deploying 10-12 SSK against us,Im not sure many nations could afford that at £300-350m a go, India is managing 6 Scorpenes, Spain 4 or maybe 6 S80. Our SSN force stacks up very well IMO., could do with more but its good, and will be similr sized than France who also have gone the SSN route.
India operates 16 SSKs, France operates SSN & SSKs
Our SSN force at 6-8 boats, maybe 3-4 Trident replacement is just about sustainable. When the RN faced the choice of keeping 4 Upholders or lose SSN they chose the latter. 4 Upholders was a small but expensive luxury in a climate of cuts. Im not against SSK's but in the current climate, would you cut the SSN force further to pay for them? 4 Upholders cost £900 back in the 1980's, Add anoher level of fleet support, propulsion, engineering support, training and refit costs then you lumber the RN further. We cant afford them , what would you cut.?
The current U212a which is probably the best in class is c280 Euros. The RN was lukewarm about SSKs and offered them up as soon as it faced a challenge. I look at the exports of Oberons and compare with the 70 boats German has exported over the last 35 years.
I would also suggest selling a cutting edge reactor plant to India, that uses technology far in excess of their own could potentially unlock another level in their nuclear programme. Also add that you are allowing another nation to know exactly what your noise signature and performance is of both your SSN fleet and future SSBN fleet is, and will be, because Asute will likely form the basis of Vanguard replacement, if that leaked, wouldnt that make our deterrent more vulnerable, if you dont think Russian or Chinese experts wouldnt get a chance to nose, I think you are very niaive.
We are never going to war with Russia, China or India
BAe supply pressure domes to navantia and other components, by all means sell sonar and other products to sustain an industry but not the crown jewell.
I would think sonar technology was more sensitive, than nuclear reactors. With no serious export orders I see a very dark time for the RN. We are building very small production runs the most expensive way to procure. Where will we be in 20 years, 6 SSN, 3 SSBN, 6 T45, 8-12 C1/2, something has to give, I would rather forgo SSN for SSK?