Where did you get this quite from? (Refr. pls.)
Appeared to be mixing apples and oranges.
Kongsberg has never been a “shipbuilder”. It was originally a weapons producer (still is) that got into marine electronics and into Marine equipment when it acquired Rolls-Royce Commercial Marine later (2019)
Altor is a Nordic Investment Group with Hq in Sweden and offices in Copenhagen, Oslo, Helsinki, on Jersey and in Zurich:
https://altor.com/about/
They bought up part of Simrad from Kongsberg and called it Simrad Yachting.
Lowrance and Simrad Yachting are competitors on the small boat market, but use same technology and parts. None of them has anything to do with propellers.
Kongsberg Group is supplying sophisticated weapon systems and marine equipment to the US Defence Dept. and USCG to this day.
That incl. M-72 Anti-tank weapons that are being supplied to Ukraine as we speak: