Well, in the game at the moment, it is not only that the controller of Gibraltar doesn´t close the strait, it gets even worse, the enemy can use your Gibraltar port! I just reported it in the bugs forum, you can have a look at the savegame.
The range finding could be done before hand I'm sure. A simple buoy line would tell them where to aim, or else simply by sight.
Also I'm sure bigger guns could be installed at Gibraltar than there were on Guadalcanal which have the feel of having to be carried across the jungle.
I actually agree on torpedo boats but can't for the life of me figure out why they just weren't used more in all warfare. I hear they were used to sink the entire blue fleet in the american fleet excersizes a few years back but still.
Bouys, yes, although the water was quite deep and flows quite fast. Just knowing the rough size of the ship coming towards you, figuring out the angles, using instruments etc, would work well.
The Guadalcanal battle I was referring to was Navy only, no shore batteries - although the range was very close (one of the US destroyers machine gunned the bridge of a Japanese BB, killing many officers incl the captain I think).
I think torpedo boats would have been more effective if the UK/US torpedos were more reliable. Although hard to hit PT boats with the big guns, they would be quite vulnerable to a ships AA guns if they could aim that low. I guess also at short range the flight time of a DD shell, for example, would be quite short so you may get some proximity damage.
DD shells are tiny compared to shells fired from land. I can easily imagine it taking 30 shots. Land based has better aim too.
And I'm now doing some research on torpedoes but can't for the life of me figure out why they aren't more effective.
You actually believe that had the Royal Navy lost Gibraltar to the Germans or Italians, it couldn't have forced a passage through the straight?
I think you're delusional.
Are you aware of the actual armaments at Gibraltar?
1939-1940 you are looking at 8x 9.2 inch guns, 2x 9.2 inch howitzers and 8x 6 inch guns.
I believe by the end of the war the number of 9.2 inch guns increased to 12 or 14.
Now, I don't know, but I imagine if the British had lost Gibraltar, first they would have DESTROYED ALL OF THESE gun emplacements. So what you are left with is an airfield (late war).
Even if these gun batteries remained, they would have been easily destroyed by a serious action from the Royal Navy. They would have had to contend with air attack, but depending on what the British brought they could have neutralized nearby air fields before even commencing the attack.
So yes. To actually hold the straight from a major naval power you needed ships present.
I know those DD shells are small, but if you look back at my post, I said a handful were BB. There were also some cruisers there as well
I think that the allies just didn't have a design as good as the Germans and Jap's for quite a few years! Ship-launched Jap ones had great success at ripping holes in the side of USN cruisers. And well we know how many Torps the German's fired from u-boats... 1 or 2 I think! ;-)
Is the strait easier controlled with a task force present? Yes.
No, I mean actualy land based torpedo frigate or corvette fleets. One would imagine they'd be terribly destructive against a fleet of say normany invasion sizes.
looks like it's bugged again then.
however a blocker is a flawed concept anyway for gibraltar. you can't really seal that strait off, except by patrolling with ships because it's a strait without a lock.
Actually I am having a hard time seeing the Italians or Spanish or Germans stopping the RN if it really wanted to sail through the straits. Yes you can put coastal artillery there, but the ships shoot back, don't they? And when the battleships show up they would bring a lot more guns to the fight than any fortress could.
None tried. There is a current into the Mediterranean. To a surface ship, it isn't much. To a sub running silent at 3 knots, it's a lot, and extends the time underwater past the sub's endurance.
Mines would have worked to seal the straight against passage. Sure, the Brits can force it, at a cost of ships, but then what? Go take over Italy with your (unsupplied) navy? Mine fields are easy to lay, and hell to sweep, plus a competent navy can have a path through charted out to use the straight themselves. If the British wanted to operate beyond an Axis Gibraltar effectively, they would have to seize the fort back, clear the strait and set up shop there.
Land batteries, air power > naval power;
cost_land/air units << cost_navies;
=> no reason to risk the losses.
The Brits would have jumped at the opportunity to engage the Germans OR the Italians in a decisive fleet action at Gibraltar had they lost it.
So I am not particularly worried if there is a bug that allows one or two warships to pass through Gibraltar. I am worried about a bug that allows convoy passing, because that alone defies the strategic value of taking Gibraltar.