Nope, not if they had used her life jacket to help support they weight. They did an entire episode, trust me, they worked out the details. Much to Cameron's annoyance (he was on the episode insisting it wouldn't work)
Tbh tho, who here, amidst a ship sinking in freezing water, wouldve thought
"hey, we can both fit on that door."
"damnit, the door is sinking."
"Wait, let me take of my life jacket, wrap it around the door to increase its buoyancy ?"
"hey, we can both fit on that door."
"damnit, the door is sinking."
"Wait, let me take of my life jacket, wrap it around the door to increase its buoyancy ?"