Can’t say how accurate the portrayal was, as I can’t remember that scene, but the blast from battleship guns certainly could injure crew on deck. On the Nelson class, there were problems with the bridge windows shattering when firing abaft of the beam. On the Yamato class, fitted with the largest guns ever (18"), I’ve heard that the crew needed to retire below decks before they could be fired, or suffer permanet hearing damage.
Just a guess, but I think if the shock wave/blast force is sufficient to toss you off your feet - which does seem realistic - it would likely kill you as well. The Mythbusters are always using those G-force measuring stickers to test this sort of thing these days, and it seems like much much smaller blasts are still deadly at close range.
Wiki says that a full charge shot for the 16inch/50 caliber mark 7 Naval Gun consists of six propellent bags, each weighing 110 pounds. This is a sufficient explosive force to send a 2,700 pound shell almost 40,000 yards.
I don’t have any hard numbers for you, but I don’t think I want to be near almost 700 pounds of explosive going off.
I recall reading about some British gun blast tests they did towards the end of the 19th century. Not surprisingly, most of the blast effects will be directed/felt in the direction the barrels are pointed. The blast zone was tear-drop shaped. Not a whole lot of blast was felt behind the muzzles. (The noise was something else, though. ) Some to the sides, but this dropped off with distance relatively quickly, compared to the blast effects going down range. Some battleships were known to have damaged the deck plating on the areas near & below the muzzles. Not done much in peacetime, hard on the budget.
Here is video footage of the USS Wisconsin firing her guns. See guns fire @ 3:12, then camera pans over at 3:25 to show film crew on deck, clearly not having been blown around the deck by the shock waves. Granted, they were some distance from the guns themselves; don’t know what happens if you’re berry close to the guns when they fire.
Note also @ 2:55 what appears to be someone on the bridge taking cover and covering their ears prior to firing. They are also probably behind a very thick lexan window. It appears that if you’re on the bridge behind lexan like that, covering your ears is adequate. Likewise with that film crew: apparently at their distance, standard hearing protection measures are adequate.
I don’t know where missle control was supposed to be. I realise that it was somewhere in the superstructure…
If Jones was outside, and the 16inch gun was firing at an angle where the blast was in a general angle towards the superstructure, then I can see Jones being knocked down by the blast.
However, if the gun was firing at an angle greater than 90 degrees away from Jones, I don’t think it would knock him down, (It would surprise the heck out of him, though.) but that is a wild assed guess on my part.
I was merely wondering if the film established the angles involved.
Still, being Hollywood and all, what’s more important is the entertainment value of seeing him get knocked over. As well as seeing Mrs. Eleniak.