dank69
Lifer
I've seen this (video) countless times...
I've experienced weather conditions like this before and (fortunately) it's quite rare.
You can have dangerous seas in sunny skies! A BIG storm can generate swells that can travel 1000 nm. These can interact with currents (like the Gulf Stream) and produce confused seas and even rogue waves. The helicopter was there due to a distress call ordered by the vessel's master when the bow took heavy seas and the bridge windows got knocked out. Partial loss of power/propulsion results in a nearly stopped condition. This renders the stabilizer system useless so the ship bobs like a cork. It does not matter how big the ship is - the size of the wave is what matters. Always!
It's very unfortunate for those people that got caught up in this. It's quite frightening for both experienced/trained crewmembers and pax alike to endure this. This can go on for many hours in the worst case scenario! It's impossible to get sleep as you're hurled from one side of your quarters to the other. EVERYTHING winds up on the floor whether you like it or not. 😱
So what you're really saying is 'it's not the size of the ship, it's the motion of the ocean'?