What the hell is a centrifugal machine gun? In the plainest of terms, it’s a gun that requires no propellant powder and a system which has sparked the imaginations of inventors and gun designers for over 200 years. A couple of months ago I was browsing through the [Read More…]
If we can make a round that is significantly better than the existing 5.56mm or 7.62mm ammunition, shouldn’t the military just bite the bullet and switch, to the benefit of the servicemen and women in harm’s way? What’s stopping the powers that be from [Read More…]
The following is an article that was originally written in Russian by TFB contributor Maxim Popenker, and Andrey Ulanov, and translated to English by Peter Samsonov. With their permission, I have replicated the text here, and edited it, for the enrichment of you, our [Read More…]
In yesterday’s article, we took a look at examples of two different methods of design, which I called “preference-driven” and “process-driven”. For these examples, I supposed two engineers from two different cultures – called [Read More…]
If you were designing the next small arms round, how would you do it? What methods would you use to determine its physical characteristics and performance attributes? How would you know what was too large or too small, too powerful or too weak? Perhaps more critically, [Read More…]
Today I stumbled across a handful of the most underrated videos on YouTube. Published in 2013, the video below (and five others like it) showcase a CAD simulation of the volume of escaping gasses, and the amount of force enacted on the individual baffles, on a muzzle [Read More…]
Yesterday, we took a close look at the AK’s operating group, to enumerate the details that make this pattern such a dependable design. Today, we’re going to be looking at some of the other elements of the AK that make it so reliable, but first I want to [Read More…]
Today we know the Kalashnikov family of rifles as one of the most successful and reliable weapon families ever designed. Even as the rifle’s legend has begun to be peeled back, the weapon’s reputation for reliability is still largely unquestioned, and many [Read More…]
In a previous post about the sometimes ambiguous meaning of the word “caliber”, we discussed how the word had mutated through the centuries, picking up different definitions and connotations along the way. In that article, I wrote: So “caliber” has gone [Read More…]
Note: In this article, I call this mechanical feature “underlug”. However, this is an error. Several friends of mine and I have been discussing the mechanics of firearms operation for close to a decade now, and we misremembered the term [Read More…]
In the first post of the 101 level series on firearms operating systems, we briefly described what the word cycle means in terms of the operation of automatic firearms. However, there’s a lot more to the cycle of an automatic firearm than just the completion of [Read More…]
So far we’ve looked at the most basic concepts in firearms operating mechanisms as part of the 101 series of posts, and some more advanced concepts like locking and bolt configuration in the 201 level entries. However, there is a whole lot more depth to the [Read More…]
Previously in our introductory series on ballistics, we’ve discussed the concept of caliber, as well as ballistic coefficient and its close relative form factor. Today, we’re going to look at the concept of rifling, and how it relates to bullet stability. [Read More…]
In this 201-level post on the devices and mechanisms that automatic firearms use to do their work, we’ll be discussing a distinction between two very similar types of gas systems. These are what’s commonly known as the “Ljungmann-type” gas system [Read More…]
Two basic mechanisms dominate the field of handguns today: The aforementioned straight blowback system, and short-recoil operation. The latter of two is a mechanism as clever as it is old; the first short-recoil weapons date back to the latter half of the 19th Century! [Read More…]
The first entry in our coverage of automatic weapon operating mechanisms will be the humble straight blowback method. Conceptually simple, it is one of the most common systems, being applied almost universally to .22 caliber rimfire autoloaders the world over, as well [Read More…]
In the second installment of Ballistics 101, we took a look at the concept of a “ballistic coefficient”, or a drag model based on an empirically tested projectile, against which other projectiles can be measured and compared. Mentioned in that post – [Read More…]
How many people really are “average”? Is it possible to design a system to fit the average person, and if not, what’s the alternative? A recent article published on thestar.com examines this question, excerpting the work of L. Todd Rose from his recent [Read More…]
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