Blowback Operated Minigun

[Braith-Wafer]

Came across this, Looks interesting.
http://img427.imageshack.us/img427/7673/bomsequence8wi.jpg

http://img111.imageshack.us/img111/728/bomjm2.jpg

http://img287.imageshack.us/img287/9843/bomqz9.jpg

http://img106.imageshack.us/img106/791/bom3uk6.jpg

http://img122.imageshack.us/img122/2005/bomud3.jpg

[Braith-Wafer]

Please Delete Thread

[Cutaway]

Hold on, you've been floating this idea for a few years now and I for one would like to like to see some more complete drawings or better yet a working model.

What do your force and stress calculations looks like ?

[Stoats]

On another forum, you wrote this:


Out of self loading weapons Blowback or Recoil are the best becouse the firepower has two functions: Half of the power is used to shove the bullet out the barrel and the other half is used for reloading but Blowbacks have a slightly slower rate of fire like the Browning M1919A4 machine gun. In a way slower rate of fire is good becouse you actually make the ammo last longer! especially to those on long operations. The bullet also is more hard hitting then if it came out of a Gas operated weapon.

The rate of fire also depends on the lengh of the cartridge too, thats why SMGs seem to be 'Rapid Fire'. With Gas Operated Weapons, The power is used for three functions: To shove the bullet out, the gas port and to blow the bolt back to reload for the new round. Just think of all this power wasted in a gas operated weapon.

With bolt action rifles/revolvers , the power is used for one point-To shove the bullet out. Thats why bolt action rifles/Revolvers happen to be more powerful and hard hitting then self loading weapons. The less points the firepower has the more harder hitting the bullet will be!



Just for your information, this is about as wrong as you can possibly be.


Gas operation reduces muzzle velocity by between 0-0.5% (try measuring that, given that it is within the normal shot to shot variation), and recoil operation reduces the muzzle velocity by the velocity of the barrel to the rear as the bullet leaves the muzzle.

the Browning M1919A4 is recoil operated

Blow backs do not necessarily have a slower rate of fire than recoil operated, it depends on various design considerations.

Now please, stop posting crap all over the Internet!

[Braith-Wafer]

Stoatman, i didnt understand much about blowbacks/recoils/gas operations at the time i posted that, Let me off with that one.

I always thought that miniguns used this type of operation until i found out how the gatling system works, but i still found my original thought of it interesting. I know the Russian made Shipunov GShG-7.62 minigun is a self powered weapon using the gas system but still not sure how the damn thing operates. Not sure if this is true but someone mentioned about the US government testing self poweed GECAL miniguns but the ROF's turned out sh1t, Suppose they could have been existing M134's etc but with the bolt guide rails adjusted for blowback operation?, Thats all i can think but still not sure.

I thought this design would have been useful for AAC doorgunners/Armoured Landrovers etc and a British/European rival of the American M134/XM214 miniguns.

As other forum users said 20 billion times, Handheld miniguns are useless due to recoil force, weight, obstructing rotating barrels etc and the fact the SALVO project revealed that multibarrel weapons with a calibre larger than 5.56mm are unsuitable for hand held use. Thats why i came up with the idea of this 'handheld nordenfelt gun' better known as the Pribor-3B, but improving it by using the PDW rounds used in either the FN P90, MP7 etc, We could discuss about that on the Pribor-3B thread.

Cutaway, Stoatman, You win. Ill drop it.

Nuff said.