Some good information here: https://www.navalassoc.ca/wp-content/uploads/2020/06/BN26-JSS.pdfsuffolkowner said:What arnaments are planned? Wikipedia says the Berlin class has 4 x 27mm. I believe you mentioned before that the ships will be based on the Bonn and not the Berlin and Frankfurt. The Bonn was the last made so that makes sense but what are the significant differences between the 3 subtypes? As far as Arctic operations go, I imagine just being double hulled will be a huge step forward.
And here: https://navy-marine.forces.gc.ca/assets/NAVY_Internet/docs/en/jss_factsheet_8x11_eng.pdf
And here: https://nss.seaspan.com/project/joint-support-ship/
I don't remember where I saw it, but I believe the hull will be built to PC6 standard as well.