Jep, I tell you that.
It is one major factor. For sure you do not drive around at full speed but there are situations were you need the speed and it is not fun to have IFVs with you which slow you down for example during retreat under fire. I often enough saw this during maneuvers when working together with our Marders.
Reaching the same cross country performance like MBTs is important. And you cannot tell me that this is not important for Australian forces.
And it just puts back your ability to perform a combined arms battle if one of the participants is not able to go the speed of the others..
Ok, you are talking tactical application, but tactical manoeuvre is generally the least of mech unit's actual employment. Sure this is where all the 'excitement' is, but most of the time is spent moving from engagement to engagement.
There is no way an IFV can maintain tank's manoeuvrability, if only because of tank's ability to negotiate obstacles thank's to it's weight. On the other hand in some terrains an tank won't go where an IFV can. This comes doen to commander's judgement and goals, not speed.
What I'm saying is that to perform together with tanks, IFVs and tanks need to share tactical performance in far wider way, and for a tank, the defining tactical characteristics are armour and long range gunnery, not speed. Acquiring targets at long range and defeating them with first round, and preventing being penetrated by enemy weapons are what define tanks
With low tech or light weapons I mean rounds up to 14,5mm and basic RPGs as well as artillery spalls and bomblets..
Yes, this is the basic desing needs for IFV anyway, low or high tech.
And what is the logic behind "We are not able to withstand ATGMs and tank guns so why should we bother about frontal armor?"?
Why should you than even armor an IFV?
.
Yes, why have armour on IFV?
All you need is to remain invisible to the enemy. Remember, if you can't see 'em, you can't shoot 'em
However, of course some armour is required, if only to protect passengers from the light weapon fire, and artillery fire in particular which is often indiscrimitary.
What I'm saying is that the amount of frontal armour on an IFV required to defeat a tank gun would make the IFV unbalanced, requiring adding of more armour elsewhere. This leads to designs that are more 'light tanks' then IFVs. Bradley is a case in point, being only about 7 ton lighter then the T-55.
A good frontal armor gives you a much better chance to be the winner of a direct duel against enemy IFVs. And frontal hits remain the highest possibility when fighting enemy forces.
It is right that shooting and hitting first is the best protection you can have but there are enough occasions where you come under fire without seeing the enemy first even with the best optics and equipment..
But why do you think the enemy will not come without his tanks in the very same way you suggest tanks and infantry shoudl operate?
And why do you suppose the enemy will only target your IFV's frontal armour?
And I know that mine/IED protection is a combination of construction procedures but of which adding armor is part of. Uncoupled running gears, V shaped bottoms, special uncoupled seats, etc are the other ones.
And against big IEDs and AT-mines mobility kills are not your only problem. The main task of mine/IED protection is to protect the crew. Remaining mobile is important but comes second to this..
Yes, I struggled with this for a long time, considering which is more important, the initial crew survival, or their ability to continue movement.
Essentially one needs to look at IED/mine attack from the enemy point of view. There are two types of such attacks: a) to deny route movement, b) do destroy route users.
In the first case the minitions are passive, and there is no enemy followup activity, so the damaged vehicle is left to deal with the effects of the attack and casualties if any.
In the second case the area of attack is actively targeted, and the attacked vehicle occupants, injured or not, will come under further attack on detonation. It is therefore imperative for the damaged vehicle to be able to retain ability to manoeuvre out of the enemy field of fire, even if at a crawl.
I meant the countries which are included in NATO.
And all of them which operate tanks accompany them with IFVs and vice versa.
And now you may tell me what makes Australian doctrine so special?
You cannot say that it is different and use it as an argument against my arguments for cross-country performance and protection without defining these special differences in doctrine.
Because I really doubt that the Australian approach to combined arms battles is that different that you think an IFV needs no good protection and all participants do not need the same speed for achieving optimal results.
Australian tactics are not that different. What is different is the operational employment. Australians primarily operate as infantry with very few tanks in support. Nor is there the development that took place in Europe as a result of WW2 and Cold War developments. Sometimes I think the Leopards were only bought because an Army is supposed to have tanks, because for infnatry support a different platform is required, but I can't think of one example in existance that would serve as a model. Maybe a tank with an LP 155mm weapon?