Naval Gun Specifications??

[meeshu]

Currently researching specifications for various naval guns.

I've been unable to locate via the internet (detailed) specifications for several guns.

1) The Millenium Gun. Haven't found published/official specifications indicating guns' accuracy.

2) Oto Melara range of naval guns. The "Technical Specifications" pdf downloads at Oto Melara website are nothing more than glossy brochures which do not provide actual gun specifications such as rate of fire, traverse range, elevation range, maximum effective range, accuracy etc.

Can anyone please provide link(s) to documentation which supplies information on 1), Millenium Gun accuracy, and 2), full specifications of Oto Melara naval guns.

Thank you very much!!

 

[Todjaeger]

Currently researching specifications for various naval guns.

I've been unable to locate via the internet (detailed) specifications for several guns.

1) The Millenium Gun. Haven't found published/official specifications indicating guns' accuracy.

2) Oto Melara range of naval guns. The "Technical Specifications" pdf downloads at Oto Melara website are nothing more than glossy brochures which do not provide actual gun specifications such as rate of fire, traverse range, elevation range, maximum effective range, accuracy etc.

Can anyone please provide link(s) to documentation which supplies information on 1), Millenium Gun accuracy, and 2), full specifications of Oto Melara naval guns.

Thank you very much!!

If you are looking for that level of detail regarding the naval guns, likely the best bet would be the manufacturer. Some of the information might also just not be publically available either.

Incidentally, which OTO Melara guns are you interested in, as there are several different models.

-Cheers

 

[meeshu]

Thanks for the prompt reply!

I thought of contacting the manufacturers. However, as this research is being done out of personal interest rather than an official/professional enquiry, I thought it unlikely the manufacturers would respond, let alone supply the required specifications.

I'm interested in the entire range of Oto Melara naval guns.

This research is being done as an aid to selecting appropriate guns for different hypothetical scenarios involving naval vessels.

 

[My2Cents]

Try NavWeaps - Naval Weapons, Naval Technology and Naval Reunions - Navy Weapons for information on rates of fire, slew rates, etc.

Accuracy information is much harder to come by, or define. The problem is that the accuracy of the gun itself is an ultimate limit, but the operational accuracy is effected more by the fire control system directing the gun. This can vary greatly from country-to-country, class-to-class, and even ship-to-ship.

 

[meeshu]

Thanks for the link. Although specifications on accuracy seem to be lacking, that website still contains a fair amount of specifications on naval weapons.

Yes. You are correct in that (overall) accuracy is dependent on the inherent accuracy of guns, plus accuracy of corresponding fire control.

The small amount of accuracy information I have at present relates to gun accuracy only.

 

[CICOMoreno]

Wooden grating for Navy guns

hello people! Does anybody know of ANY kind of regulation, norm or something like that regarding the use of wooden grating around gun mountings? its the ones some navies use so the expended casing of the fired round doesnt dent the metal decks (you all know how much we take care of our foc'sle). I need it urgently. And now, my contractor doesnt seem to know what "common sense" is, at all. Thanks again!

 

[CICOMoreno]

just so you know, usually a 76mm/62 cal gun has a maximum range of 15,000 yards, and an effective range of 10,000 yards (firing against surface targets). I served as a Gunno on A.R.C. Independiente, so its info I know firsthand.
On the oher hand, most accurate data regarding this kind of info is deemed classified by the companies and therefore only submit them to buyers of their product during trials and training sessions.

 

[My2Cents]

You are correct in that (overall) accuracy is dependent on the inherent accuracy of guns, plus accuracy of corresponding fire control.

It would be more correct to state that accuracy is dependent on the product of the accuracies of the fire control system, the ammunition, and the gun. In other words:

Hit probability = (the likelihood that the fire control system will point the gun correctly) x (the likelihood that the ammunition propellant will perform as specified) x (the likelihood that the gun will be layed correctly).

There are a large number of variables that can go wrong here. Some examples:
Fire control
- - Accuracy of measurements
- - Compensation for parallax between sensors and weapon
- - Entry of correction factors (meteorology, temperatures of gun barrel and ammunition, number of rounds fired, etc.)

Ammunition
- - Manufacturing quality control
- - Age and storage conditions (cumulative)

Gun
- - When and how well the gun was aligned.
- - Condition of mount in general.
- - Wear on the training gears (backlash)
- - Local or remote control
- - Condition of the barrel interior (wear, corrosion, etc.)
- - Accuracy of on mount sensors for correction factors

The accuracy of the basic gun as delivered from the manufacturer is a minor item.

 

[Systems Adict]

hello people! Does anybody know of ANY kind of regulation, norm or something like that regarding the use of wooden grating around gun mountings? its the ones some navies use so the expended casing of the fired round doesnt dent the metal decks (you all know how much we take care of our foc'sle). I need it urgently. And now, my contractor doesnt seem to know what "common sense" is, at all. Thanks again!

Experience of UK RN ships is that they use 'woven coconut mats' that come from India or China, that are about 6 feet square & have a 'woven handle' on each corner, so they can be lashed down.

However, you sound as though your talking about 'duck boards' (6 to12 off, 2 inch wide, by 1 inch deep, wooden slats, about 6 feet long, with a space of about 1 inch between each slat, secured together with a spar that goes across the back of them, to join them together, one at each end & 3 inbetween, about 1 foot apart).

You could always cheat & use commercial transport pallets, but WRT regulations, you're probably looking at untreated / uncoated hardwood as your base material (due to the fire resistance), something like Rotico.

The other issue is how do you lash them down to the deck, without causing to damage the Camrex / rough grip surface ??

SA

 

[AegisFC]

hello people! Does anybody know of ANY kind of regulation, norm or something like that regarding the use of wooden grating around gun mountings? its the ones some navies use so the expended casing of the fired round doesnt dent the metal decks (you all know how much we take care of our foc'sle). I need it urgently. And now, my contractor doesnt seem to know what "common sense" is, at all. Thanks again!

While it isn't a regulation both destroyers I was on used to lay out the mooring lines for the casings to land on and it worked pretty well.

 

[CICOMoreno]

thank you both AegisFC and Systems addict. The thing is that in colombian ships we use the wood grating (duck boards) as a custom. As we are building a new ship in COTECMAR shipyard in Cartagena, I need to convince the shipyard execs that the ship DOES need the wood grating. If I cant come up with a regulation from somewhere so my CO can fight for it, the ship is gonna have to provide it for itself. The idea is that the shipyard must give it to us. In case of an emergency the mooring lines used as a mat are a real good idea, but orders are to build the permanent thing. heres an example of the thing i need, but its onboard an Almirante Padilla Class FFG, of the Colombian navy. once the picture is approved i will post the link so you can all see what im talking about.

 

[meeshu]

It would be more correct to state that accuracy is dependent on the product of the accuracies of the fire control system, the ammunition, and the gun. In other words:

Hit probability = (the likelihood that the fire control system will point the gun correctly) x (the likelihood that the ammunition propellant will perform as specified) x (the likelihood that the gun will be layed correctly).

There are a large number of variables that can go wrong here. Some examples:
Fire control
- - Accuracy of measurements
- - Compensation for parallax between sensors and weapon
- - Entry of correction factors (meteorology, temperatures of gun barrel and ammunition, number of rounds fired, etc.)

Ammunition
- - Manufacturing quality control
- - Age and storage conditions (cumulative)

Gun
- - When and how well the gun was aligned.
- - Condition of mount in general.
- - Wear on the training gears (backlash)
- - Local or remote control
- - Condition of the barrel interior (wear, corrosion, etc.)
- - Accuracy of on mount sensors for correction factors

The accuracy of the basic gun as delivered from the manufacturer is a minor item.

Yes. There are a lot of variables involved!

Another consideration is barrel vibration upon firing, and also recoil control.

 

[ThePuss]

Experience of UK RN ships is that they use 'woven coconut mats' that come from India or China, that are about 6 feet square & have a 'woven handle' on each corner, so they can be lashed down.

Sounds like in the RAN we use the same thing except we call them "Shock Mats". We use them to protect the deck around the Gun during firings and a lot of other uses as well such as under Gangways and placed in the Dump for RAS-H and Light Jackstays, but always with the common use of protecting the deck.

In the bellow link you can see the Mats stacked behind the Mk 45.
File:HMAS Arunta 5inch.jpg - Wikipedia, the free encyclopedia

 

[Sandhi Yudha]

Does anyone know what type of (20mm?) this is? (First Picture)
Is it an Rheinmettal or a modified F2 (second picture)?

 

[SASWanabe]

it looks like a Denel Vektor G12 which is a modified F2 as used on Sigma class corvettes. i could be mistaken tho

 

[oldsailor58]

Currently researching specifications for various naval guns.

I've been unable to locate via the internet (detailed) specifications for several guns.

1) The Millenium Gun. Haven't found published/official specifications indicating guns' accuracy.

2) Oto Melara range of naval guns. The "Technical Specifications" pdf downloads at Oto Melara website are nothing more than glossy brochures which do not provide actual gun specifications such as rate of fire, traverse range, elevation range, maximum effective range, accuracy etc.

Can anyone please provide link(s) to documentation which supplies information on 1), Millenium Gun accuracy, and 2), full specifications of Oto Melara naval guns.

Thank you very much!!

have you tried any of the JANE'S series. JANE'S warships and JANE'S weapon systems used to be a good place to find this sort of information.

 

[STURM]

I served as a Gunno on A.R.C. Independiente, so its info I know firsthand.

Interesting, this an HDW FS1500 corvette. Malaysia operates a pair.