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Professur | 03-25-2009 03:41 PM
Another reason not to buy an AK-47 They know where you are Quote:
Profs design AK47-locating 'smart dust' helmets Satnav network node-lids backtrack bullets, ID weapons By Lewis Page � Get more from this author Posted in Security, 25th March 2009 16:38 GMT Free whitepaper � Calculating total power requirements for data centers Acoustic gunshot detectors have become common in the past few years, and some have been reduced in size to where a single soldier can wear one on his uniform and be cued-in to an enemy's location as soon as he fires. Engineers in Tennessee, however, are touting the idea of tieing a unit of footsoldiers' acoustic shot-spot sensors together in a wireless net. They think this would offer several benefits: the system wouldn't be confused by echoes or multiple enemies firing at once, and it would be able to locate gunmen who weren't in line-of-sight from an individual soldier. Perhaps even more impressively, the networked sonic system is able to distinguish the calibre of weapons fired, and even in some cases identify different weapons firing the same kind of ammunition. Vanderbilt University's inhouse Exploration mag reported last week on the gunshot-locator net developed by the uni's Institute for Software Integrated Systems (ISIS). It involves mounting a small electronics package on each soldier's helmet, running on four AA batteries. In each package is a wireless network node, of a type dubbed a "smart-dust mote" for its small size and cheapness. There are also four separated microphones, for picking up the acoustic signatures of flying bullets, and a GPS satnav location system. The GPS isn't accurate enough to act as a basis for properly pinning down opposing gunmen, so the Vanderbilt boffins added a crafty radio interferometry enhancement system of their own - apparently of such cunning that it has attracted as much interest as the rest of the system on its own. The system works by picking up the distinctive conical shockwave trailing behind a passing supersonic bullet - the same phenomenon which produces a sonic boom behind a plane at Mach 1+. This is then related to the muzzle blast from the weapon which fired it, trailing slightly behind (the two noises are heard by people under fire as "crack-thud", or "crack-bang"). A software algorithm in the unit can work out a range and bearing to the enemy weapon's muzzle. So far, so ordinary: a system much like the Qinetiq-America "Ears" or others already under trial with US forces. But then various special sauces developed by ISIS prof Akos Ledeczi and his team kick in. All the smart-dust node hats in the squad or platoon net pass their information back and forth, and a special patented filter strips out false muzzle-blast reports - the great bugbear of such technology. The supersonic bullet-booms are very distinctive, it seems, but the muzzle blasts are much harder to distinguish from random banging sounds or echoes - especially with lots of guns firing at once in a built-up area. As every node has a good idea exactly where it is, owing to its embedded radio-interferometry-enhanced GPS, the combined reports can thus be boiled down to locate all the guns firing nearby within a metre or two - enough to pinpoint which window, corner or whatever each enemy is shooting from. Apparently it still works even in the case of crafty snipers lurking well back from windows - the usual method favoured by the pros. Nor is the system bothered by guns firing out of line of sight - hidden behind walls or buildings or whatever. Next page: "This is the AK-47 assault rifle, the preferred weapon of your enemy. It makes a very distinctive sound" Page: * 1 * 2 * Next → .... more

AOW | 03-25-2009 03:54 PM
Re: Another reason not to buy an AK-47 AK is for pray and spray - they'll already know where I am if I'm using it.:getdown:

Usury | 03-25-2009 04:05 PM
Re: Another reason not to buy an AK-47 Whatever.... Any idiot with functioning hearing can distinguish rapid (or even single) fire as being M-16 or Ak-47. You don't need a machine to tell you what it is. For that matter, does it even matter which one is being shot at you?

smullen | 03-25-2009 05:10 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by AOW (Post 1645537) AK is for pray and spray -
Not to start a pissing match, but I always hear people say that... I own and shoot both ARs and AKs.. I do think the AR is a better, tighter, futher shooting rifle, but I'm pretty accurate with mine out to 300 Yards... I never get to shoot further...

Early Cuyler | 03-25-2009 05:21 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by smullen (Post 1645677) Not to start a pissing match, but I always hear people say that... I own and shoot both ARs and AKs.. I do think the AR is a better, tighter, futher shooting rifle, but I'm pretty accurate with mine out to 300 Yards... I never get to shoot further...
I agree. My AK is very accurate. That system is only effective against snipers or small groups. When shots are coming from lots of directions it kinda loses its teeth. Moral of the story...bring friends...lots of friends. :coolbeer: Quote:
Hudson: 12 meters. 11, 10... Vasquez: They're right on top of us! Hudson: 9 meters. Hicks: Remember: short, controlled bursts. Hudson: 8 meters... 7... 6... Ripley: They can't be, that's inside the room. Hudson: It's reading right, man! Look! Hicks: Well then you're not reading it right! Hudson: 5 meters, man! What the hell?! [Looks up along with the rest as they realize they're in the ceiling] ... Oh shit... oh ****...

maximumrebel1 | 03-25-2009 05:45 PM
Re: Another reason not to buy an AK-47 I don't own an AK but I'm not impressed with the AR's I have seen. I'll take an AK anyday AR's are not double the gun to warrant double the price.

CQC McDuck | 03-25-2009 07:07 PM
Re: Another reason not to buy an AK-47 I love my AK. It's simple and gets the job done.

voodoo1951 | 03-25-2009 08:08 PM
Re: Another reason not to buy an AK-47 Here is one of my favorite range guns...Great shooter for under $400 (well, not any more)...:signs14::4_1_72::cry1::cry1: More like $6-700:4_1_72::4_1_72::4_1_72: http://i104.photobucket.com/albums/m...51/ak006-1.jpg

elroy | 03-25-2009 08:10 PM
Re: Another reason not to buy an AK-47 You can see where this technology is going. Pinpint the shooter by getting readings from 3 or 4 different sensors on different soldiers helmets. Relay the data to an overhead chopper or a computer controlled weapon on a tank or other armored vehicle. The computer pinpoints the shooter via triangulation, the computer controlled weapon fires on the coordinates and obliterates the shooter within 3 seconds. Soon the soldier won't even need a gun and the armored vehicle will be remotely controlled too.

honu5050 | 03-25-2009 08:32 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by elroy (Post 1645961) You can see where this technology is going. Pinpint the shooter by getting readings from 3 or 4 different sensors on different soldiers helmets. Relay the data to an overhead chopper or a computer controlled weapon on a tank or other armored vehicle. The computer pinpoints the shooter via triangulation, the computer controlled weapon fires on the coordinates and obliterates the shooter within 3 seconds. Soon the soldier won't even need a gun and the armored vehicle will be remotely controlled too.
providing the communications electronics havent failed. were are them road signs ? hello hello........... static. :cheers:

SLV>GLD | 03-25-2009 08:49 PM
Re: Another reason not to buy an AK-47 I'm sorry, I must've missed the first reasons to not buy an AK?

Irons | 03-25-2009 09:03 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by maximumrebel1 (Post 1645728) I don't own an AK but I'm not impressed with the AR's I have seen. I'll take an AK anyday AR's are not double the gun to warrant double the price.
I shoot prarie dogs at 380+ yards with my Colt HB carbine and a good scope. They look like matchsticks in a long range varmint scope and we hit them, AK's are fun and deadly but no AK will do that.:9536: At long range a good AR is easily twice the gun.

EireGoBragh | 03-25-2009 09:13 PM
Re: Another reason not to buy an AK-47 I guess they both have advantages, depending on the application, overall I think I'd go for the AR, just because of the long-range ability You Tube
You Tube

maximumrebel1 | 03-25-2009 09:30 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by Irons (Post 1646030) I shoot prarie dogs at 380+ yards with my Colt HB carbine and a good scope. They look like matchsticks in a long range varmint scope and we hit them, AK's are fun and deadly but no AK will do that.:9536: At long range a good AR is easily twice the gun.
Those are impressive numbers for sure, however in a war scenario I don't see people needing to take 200+ yard shot with a battle rifle. In combat scenarios such as Somalia in Black Hawk down the majority of the soldiers talked about trading in there under powered M16 for the M14 a true battle round. To each his own but as for me I would bet my life on the power and reliability of the AK not the long range ability of the AR.

WAoG | 03-25-2009 09:36 PM
Re: Another reason not to buy an AK-47 For long range I would perfer a 308 type round. Im not found of the 223 round.

Irons | 03-25-2009 09:39 PM
Re: Another reason not to buy an AK-47 1 Attachment(s) Quote:
Originally Posted by maximumrebel1 (Post 1646082) Those are impressive numbers for sure, however in a war scenario I don't see people needing to take 200+ yard shot with a battle rifle. In combat scenarios such as Somalia in Black Hawk down the majority of the soldiers talked about trading in there under powered M16 for the M14 a true battle round. To each his own but as for me I would bet my life on the power and reliability of the AK not the long range ability of the AR.
That is precicely why everybody should have one of each, along with .308's. Here is my AK, I diden't realize I was getting such a rare dog when I bought it back in 1986. I just figured it was way nicer than the chinee type 56 that was everywhere at that time.:RockOn: Attachment 66630

platinumdude | 03-25-2009 09:49 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by Irons (Post 1646030) I shoot prarie dogs at 380+ yards with my Colt HB carbine and a good scope. They look like matchsticks in a long range varmint scope and we hit them, AK's are fun and deadly but no AK will do that.:9536: At long range a good AR is easily twice the gun.
Some people like prairie dogs.

WAoG | 03-25-2009 09:49 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by maximumrebel1 (Post 1646082) Those are impressive numbers for sure, however in a war scenario I don't see people needing to take 200+ yard shot with a battle rifle. In combat scenarios such as Somalia in Black Hawk down the majority of the soldiers talked about trading in there under powered M16 for the M14 a true battle round. To each his own but as for me I would bet my life on the power and reliability of the AK not the long range ability of the AR.
I have to agree with you. With my life on the line I'm not grabing the ak if leaving the house but I sleep next to the ak and have for many years. I think its (ak)a great close quarters rifle. In a city I might leave my battle rifle behind and take the ak?

Irons | 03-25-2009 10:12 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by platinumdude (Post 1646127) Some people like prairie dogs.
Yep, Easterners.

reformed wastrel | 03-25-2009 10:44 PM
Re: Another reason not to buy an AK-47 Quote:
The system works by picking up the distinctive conical shockwave trailing behind a passing supersonic bullet
Use subsonic ammo. System defeated.

Merlin | 03-25-2009 10:58 PM
Re: Another reason not to buy an AK-47 OK, I'll reveal my ignorance here. What ammo is subsonic? How do I find the answer to the question myself? How about my 45 LC?

SLV>GLD | 03-25-2009 11:00 PM
Re: Another reason not to buy an AK-47 The only subsonic ammo I have seen or fired is 22lr. Primarily useful in a bolt action as it generally will not cycle the action on a semi-auto. Also, accuracy is a bit iffy as you can usually follow the round with your eyes and see it wobble in the air. Upside: Very quiet. the firing pin snap and the thud of the round on target is louder than the pfft of the report.

Dave Thomas | 03-25-2009 11:16 PM
Re: Another reason not to buy an AK-47 I remember reading something about acoustic gunshot pinpointing platforms years ago. They were going to deploy microphones all over high crime areas. These microphones are all linked together real time. So when a report is detected, the difference in arrival time at each microphone can be used to triangulate the report with frightening accuracy. I wouldn't be surprised if this stuff isn't already in use in some place already.

mtnman | 03-25-2009 11:43 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by Merlin (Post 1646230) OK, I'll reveal my ignorance here. What ammo is subsonic? How do I find the answer to the question myself? How about my 45 LC?
.45 auto is sub sonic and can be made very quiet.

mtnman | 03-25-2009 11:46 PM
Re: Another reason not to buy an AK-47 Quote:
Originally Posted by platinumdude (Post 1646127) Some people like prairie dogs.
They don't own cattle.

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