Schpam wrote:First, Oliver, I had trouble following your last post.
What does, "You just missed what is arbitrary fixed." mean?
Second I think you both are in agreement but maybe stuck on terminology.
Ok. first, English being not my mother tongue, I may accidentally add some unecessary confusion trying to explain the system which is nonetheless basically very simple. Moreover, you should keep in mind that the "Unit of Fire" concept is not specifically U.S. and that it is used by almost every Army in the world from the begining of the last century. So I'm just trying to use a general explanation of what is the purpose of using "Units of Fire" instead of addressing only the U.S. case, even if my examples are taken out of U.S. charts.
Second, I still believe that Jeff and me are basically in disagreement about, not only the terminology, but the whole system definition which, I'm saying, is not related to any specific number of rounds
OR any specific amount of time
BUT is related to the relationship
derived from staff studies taking into account a specific combat organisation and its tactical employment: "the proportional expenditures of different calibers considering a given combat organization during a certain amount of time" would fit my generic definition of the system.
I'll answer your question about "arbitrarily fixed" below as you provided me with a very good example of why you may minsunderstand it.
Schpam wrote:I think it would be helpful to see the defintiions of some terms used. I downloaded a copy of FM 9-6 dated 15 June 1944 andd FM 101-10 dated 15 June 1941. I wish they were of the closer in time but I think we'll just have to suffer through.
We already posted several times those definitions without agreeing on the basis which are not explained in details either in the FM 9-6 or FM 101-10.
Schpam wrote:I think it is important to note what it says for Unit of Fire (UoF). It is a unit of measure for ammunition supply. So it is akin to an inch or a centimeter. It is not arbitrary just as an inch isn't arbitrary. At some point in the history of an inch it meant something physical, but now it is just a unit of measure.
If I'm telling you that both "inch" and "meter" are arbitrary physical units, would you believe me?
You may still believe that an "inch" is something "real", but at one point, someone decided that an "inch" would be that long... and no more discussion about it. For the meter, there is an "étalon-mètre", which is made of platinium or gold and conserved somewhere in Paris, in case someone would argue about its physical measure.
But both systems of measure, be it imperial or metric, is independent of the physical measure of 1 inch or 1 meter. Those system are describing the relationship
between fractions or multiples of this arbitrary picked reference called "unit". This is exactly the same for "Unit of Fire".
Schpam wrote:Also note what is say about expenditure. For small arms as soon as the ammo is issued to the user it is considered expended, fired out of the small arm or not, while for large weapons like a 75mm howitzer expended means actually fired.
This is unrelated to UFs, its is for administrative simplification, sparing the riflemen to report each round fired, like the artillerymen would do.
Schpam wrote:I do think type of weapon and even rate of fire come into play. Here is what Para 87 starts off with:
I wonder if I'm always clear about what I'm talking about:
- if the Rifle is a M 1903 or a M1 issued to any IR rifle platoons, its UF won't change because being in one case bolt action or semi-auto in the second case. The same "post" will be allocated the same UF.
- if the same Rifle is issued to some rear construction unit (as they got some), its UF will be different because of its tactical employment.
Consequently, UF is not related to the Rate of Fire nor the type of Rifle, but to the spot occupied by the weapon on the organization tables.
Usually, UFs are compiled per unit (divisions, regiments, battalions) for detailed planning, rather than just "per gun". Or, they are very generic UFs for high level planning and estimates. May be you should get first the general principle before going into the details of ammo supply. Just remember that UFs are used mostly for staff planning where orders placed are by dozen of tons rather than boxes.