Question about the deck Gun

[Schütze]

Guten tag, fellow Kaleuns!

My compliments to everyone involved in making Silent Hunter III closer and closer to a true Das Boot experience.

I have rather two questions but the deck gun is my most vital question for know. It seems like a lifetime since i (and we) could perhaps sank the whole Royal Navy with the deck gun alone. Remember in stock Silent Hunter III prepared with 200 plus shell shot plus the extra 200 panzer breaking plus the light shot with the ship sinking just after a 10 shot or so, dependless of were the shot hit.

Enjoying my time as a commander know (U-48, Wegener flottile) equipped with GWX 3.0 gold and SH3 Commander it seems like a whole new game and with the possibility of having NONE benefits with the deck gun, which is more closer to the historical accuracy. As i have understand it, the deck gun was mostly used during the early period in the war when the Sub commanders were bound to the prise regulation. And you have guessed it correct, i want to be as much close to the history as possible.

My question then: How were the deck gun used and how long were the reloading? I have read every book of Clay Blair and his "Hitlers Uboat-war" and despite some few comments in the first book there isn´t much infomation about the Deckgun. It is said that the deck gun is a "fastshooting-fastreloading 8.8 cm" and that could motivate the four second reloading time but somehow i can´t belive it. I have also read that the ammunition was stored under deck and this is what you have to take into account when guessing the actual reloading-time, unless the crew weren´t prepared with all of the ammunition and had removed it from under deck before the shooting. Via SH3 Commander i have set the reloading time to 20 sec taking into account the time of removing the ammunition under deck and the reloading-time but i don´t know if im historical correct with it, but sure wan´t to be close to it.

Using the deck gun seemed like a process not in a hurry. It took f.ex Kapitänleutnant Bleichrodt a whole lot of hours and the whole ammunition store to sank a ship (can´t remember which one) close to the American east-coast.

[Jimbuna]

The debate on reloading times for deck guns is a popular one.

The link below suggests an experienced crew could fire 15-19 rounds per minute.

I should imagine that is in perfect conditions....without taking into account weather conditions, boat stability etc:

http://www.uboataces.com/tactics-deckgun.shtml

[Schütze]

Thanks Jimbuna! I guess i am to lazy to find this out myself

[Laufen zum Ziel]

Good question.

[Jimbuna]

Originally Posted by Schütze

Thanks Jimbuna! I guess i am to lazy to find this out myself

If you look around the forum you'll come across many excellent links to naval warfare topics, not just U-boats.

[Sailor Steve]

The 8.8cm gun could indeed be loaded in 4-5 seconds. The problem is that any small vessel is subject to variations in the waves, and a submarine more than some others. The guns are hand-cranked, and once the proper elevation is set for the range required, the gun captain has to wait until the boat is perfectly flat, what they called "firing on the roll". This can be several more seconds even in a supposedly 'calm' sea, and as the wind picks up the problem only worsens.

I keep my 8.8cm set to 10 seconds and the 10.5cm set for 12. This has always felt about right to me for a calm sea. As the weather worsens I order 'Hold Fire' until I feel the proper time has passed, then I let them shoot one.

But that's just me.

[UnderseaLcpl]

As usual, Steve has the best answer.

I prefer to fire the deck gun myself in GWX 3.0. The crew gets too proficient at it, especially if the watch officer has a gunnery qualification.
I figure the gun crew would only be as good as I could train them to be, so with the increased reload times and compensating for rough seas, using myself as the yardstick for deck gun performance is the most realistic. Plus I like shooting it.

The stock 4-second reload time is a bit short, imo, but don't underestimate how quickly a well-trained gun crew can work. I've seen 155mm M198 howitzers reload and adjust fire in about ten seconds, and they have to swab the breech first and use bigger shells, and put powder bags in the breech, and place the primer. Admittedly, though, that is on land.
20 seconds seems too long to me, because there was a relay system for passing shells up, and even 120mm shells can be manhandled more quickly than that using a human chain.