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[UPDATED DB v422] How to kill an Alfa
Posted: Sat Feb 06, 2016 9:36 pm
by trebor6669
Playing Keflavick Capers
How do you kill an Alfa
Seems he is too deep for any torpedo
He's at -1600ft
All Mk50 only goes down to -1500
Thanks
RE: How to kill an Alfa
Posted: Sat Feb 06, 2016 11:13 pm
by Gunner98
Very carefully [:D]
I think that the Mk50 on the P-3 can go to -1900ft, while the Mk-46 on most ships and Helo's will only go down to -1500. On the sea floor the Alpha can go to 700M or ~2100ft, so nothing can get him if it is deep enough.
Your other problem is that the bugger is fast - 42 knts, so even if you drop right over him and he is a great depth he might outrun the torp.
His problem is that he is loud and cannot launch his torps at max depth either, they are limited to 1500ft.
So, once you find him, its a waiting game and if he comes up to shoot you need to have at least 2 if not 3 shooters surrounding him and probably want to do some BOL launches to get in front of him.
Its a bit tricky. [8D]
B
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 11:21 am
by cf_dallas
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 2:36 pm
by trebor6669
All
Thank you
My P3 launched MK46 onlt goes to -1500 as well
Hmmmm
Latest DB as well
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 3:39 pm
by FlyingBear
According to later sources (such as Polmar & Moore, "Cold War Submarines") the Alfa's legendary deep diving capability was a misinterpretation by Western intelligence services. The purpose of the titanium hull was to decrease weight and increase speed, not to reach extreme depths. Even the Wikipedia article on the subject now states similar information, citing 21st century Russian references.
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 4:03 pm
by mikmykWS
If you think it's wrong guys lets get some data points up and do the things we need to do the make the change happen.
Thanks!
Mike
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 5:59 pm
by FlyingBear
The reference I mention above (published in 2004) states as the reason for the titanium hull (page 141):
Compared to steel, titanium provided a number of advantages in Project 705:
- 30 percent lower mass
- 25 percent lower displacement
- 10 percent increase in speed
- reduction of magnetic field
- significantly lower operating costs as a result of the corrosive resistance of titanium alloy
The titanium hull, advanced fittings and ballast system, and other features would give the submarine a test depth of 1,300 feet (400 m), comparable to U.S. second-generation SSNs of the Thresher and later classes.
On page 144:
(The submarine could not operate at depths of 2,100 feet [640 m] or more, as estimated by the principal Western intelligence agencies.)
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 10:20 pm
by trebor6669
HERE is the SCEN
RE: How to kill an Alfa
Posted: Sun Feb 07, 2016 10:24 pm
by mikmykWS
Thanks. Added issue to our list.
Mike
RE: How to kill an Alfa
Posted: Mon Feb 08, 2016 5:18 am
by Zaslon
And what sources used Polmar & Moore?
RE: How to kill an Alfa
Posted: Sat Feb 13, 2016 7:50 am
by ComDev
Have updated the database, thanks [8D]
RE: How to kill an Alfa
Posted: Wed Feb 24, 2016 4:54 pm
by magi
ORIGINAL: emsoy
Have updated the database, thanks [8D]
This is cool… Because I could never get the Alpha when I played Keflavick Capers months ago......
RE: How to kill an Alfa
Posted: Tue Mar 01, 2016 12:12 pm
by Beckles
ORIGINAL: FlyingBear
The reference I mention above (published in 2004) states as the reason for the titanium hull (page 141):
Compared to steel, titanium provided a number of advantages in Project 705:
- 30 percent lower mass
- 25 percent lower displacement
- 10 percent increase in speed
- reduction of magnetic field
- significantly lower operating costs as a result of the corrosive resistance of titanium alloy
The titanium hull, advanced fittings and ballast system, and other features would give the submarine a test depth of 1,300 feet (400 m), comparable to U.S. second-generation SSNs of the Thresher and later classes.
Interesting, but at least one of those numbers is wrong. For a surface ship mass and displacement are directly proportional, so a 25 reduction in mass would result in a 25% reduction in displacement. For a submarine mass does not dictate displacement, displacement is dictated by the volume of the airtight hull (and to submerge the mass needs to exceed displacement, so the submarine needs to add enough weight, i.e. ballast, to make its mass exceed its displacement.) Ultimately the material a hull is made of does not impact the displacement of a submarine, a submarine of the exact same dimensions as the Alfa would displace the same whether made of Titanium alloy, steel, aluminum, plastic, concrete, etc. Of course the strengths of each of those would differ.
RE: How to kill an Alfa
Posted: Tue Mar 01, 2016 12:51 pm
by FlyingBear
Sure, but the mass and the displacement are still coupled by, e.g., the targeted reserve buoyancy. If the mass is lower the volume can be made smaller and the displacement is thereby reduced.