The sad part of the story is that, according to published costs (well, I would like to know what is or is not included in the contracts...) nine new Virginia class SSNs are expected to cost 22.2 bn USD (approx. 3.3 bn CAD each). Ready for operations under ice, proven, risk-free design. 12...
https://www.australiandefence.com.au/defence/sea/attack-class-plan-of-action
https://www.theaustralian.com.au/nation/defence/submarines-project-a-220bn-disaster/news-story/ed563e92a735dfea84f8ed1adede153b
(if it does not work, try the next one)...
Thank you Uzlu for the inputs.
Here it is a brief update on the state-of-art of LIB (lithium batteries) for SSKs.
https://www.aspistrategist.org.au/wp-content/uploads/2019/11/Woolner-Jones-media-background-lithium-battery-adoption-for-submarines-20Oct19-FINAL.pdf
Regarding future USN Navajo, two more oceanic tugs are in the pipeline.
https://mobile.navaltoday.com/2019/11/01/us-navy-lays-keel-for-first-navajo-class-salvage-and-rescue-ship/
EDITED:
More on tugboats: this russian vessel seems quite similar to the AOPV on functionality and capabilities...
Right , but var. pitch may be interesting while operating the gas turbine for the same reason as DGs. Some other CODLAG vessels use it: german F125, FREMM or F-110. Probably brings in higher efficiency.
I understand then that one reason to install fix pitch propellers is noise.
Surprisingly it is not stated anywhere the power (MW) of the electric motors.
This is a key parameter for the cruising speed. In a drawing we can see all 4 diesel generators with EM "running" and claiming 20 knots, but the speed will depend on the power of the EMs. Moreover, all 4 DGs running...
Naval group has developed a diesel reforming system to feed a fuel cell. They call it Fuel cell 2nd generation. Reforming may well be the right path for an AIP- Arctic submarine, and in this field there are three systems under development:
- diesel reformation (french Naval group)
- methanol...
While I personally like Soryu the most, please note that delays and cost increases are not unusual in these type of projects. And those problems are solved now (by lengthening the hull). Finally the four S80 plus are to be delivered within next decade 2022-2026) at a cost of about 1.4-1.5...
Those are in fact a sub-class of the german type 212.
At the end of the day there are 3 possible suppliers ... for each coast:
Pacific: Japan (Soryu or SS29) South Korea and Oz (Attack- variant of french barracuda).
Atlantic: Norwegian-German type 212 CD, Sweed A26, (again a conventional...
https://www.thedrive.com/the-war-zone/28611/congresss-meddling-could-begin-to-sink-the-navys-frigate-program
I recommend reading the attached paper from DoD.
Interesting statement regarding increased costs and delivery time if some components are to be sourced in US.
Actually, both the Fremm and the F-100 offered for the FFG(x) are reduced versions. On the other hand, another bidder as the Independence class is about 3.100 tons. A weighted average, gross-made in my mind (without calculator) drops some 5.000 tons. Being accurate was not my point.
Hunter...
From the rcinet.ca link above ...
"The new estimate released Friday pegs the total cost of the CSC program at $69.8 billion over 26 years, including $5.3 billion in pre-production costs; $53.2 billion in production costs; and $11.4 billion in project-wide costs, said the PBO report."
That...
Just compare with the USN FFG(X) programme in terms of costs and schedule by using actually existing platforms (let's admit that the type 26 has enhanced capabilities, but ...so much?) :
"We started closer to the $950 (million); we are trending to very close to the $800 now."...
Would it mean that a third package should be in place for Davie to enter the NSS? Then the package might be or seems to be the "ice-breakers" pack.
In such a case ... who would be in charge of the MCDVs replacement? If considered as combatants, then Irving would be the one, but they won't have...
Excuse me to post this link. Will not be nice to anybody, and I particularly believe it's clearly biased against CSC offseting some aspects as job creation, technology transfers and the effort to level the shipbuilding cycles. Yet the article has some reason...
From my point of view the best part of PM's statement yesterday is the open door for Davie to come into the NSS. With both Seaspan and Irving busy on their allocated vessels for two or three decades, I dare to foresee the replacement for MCDVs would come from Davie. That might be done within the...
https://www.tpsgc-pwgsc.gc.ca/app-acq/amd-dp/mer-sea/sncn-nss/projets-projects-eng.html#s18
Official NSS web already updated. ☺
Seems to have moved from
5 future Offshore Patrol Vessels (for the CCG), and
5 future Medium-Endurance Multi-Tasked Vessels (for the CCG).
to...
2 AOPs (built at...
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