Originally posted by gary1910:
Most countries in the world are still using so called "old tank", for example IDF just recently retired their own Centurion and still have many M60( upgraded of course) in svc.
(First of all, you are the acknowledged tank expert here, so I am just offering some unsubstantiated opinions

)
The IDF had retired their Centurions from the MBT role, not just recently - but for nearly three decades. During the war in Lebanon in
1982, IDF converted their already
obsolescent Centurion MBTs to specialised roles and a heavily-armoured APC version called Nagmashot.

The IDF AMX-13 was made obsolete even earlier - despite being upgraded to 90mm gun. (With a 105mm upgrade also available.) Why? because they were unreliable, had thin armour that even a .5 HMG could penetrate. And as a result suffered very heavy casualties and did not fit with IDF's emphasis on crew survivability - which is the prime objective of all Merkava designs.
The most modern tanks in SEA other than what SAF have is the PT-91 which is a actually an upgraded T-72M1( 30 y.o. tanks), so any old tank with proper upgraded FCS, armour, powerpack etc , a old hull could still performed, that is why there are still so many "old tank"around in most armies.
First of all, not all the PT-91 Twardy are old tanks that has gone through factory rebuilding. Some are brand new tanks. I don't know if Malaysia got the rebuilds or brand new tanks, though. And apparently, on the new tanks, the armour protection is very impressive.
The T-72 was an impressive success to begin with. So you can still upgrade it and it'll function for a couple more decades. But the AMX-13 was a disastrous failure right from the start. Nearly every country that operated it quickly phased it out like Israel and India.
The AMX-13 is not a platform worth any further refurbishment or modernisation. How much further can you go with such a unconventional and strange design? You can't even fit a gun stabilisation thing to the strange turret design which means you have to stop, take aim, and then shoot. It'll be like WW2 all over again.
Having a new tank in any armed forces is no easy task especially a large qty, let's say qty of 300 tanks, the army will need to train at least 300 set of crews, large group of maintenance specialists, instructors, logistics etc.
Then there is cost incurred above plus the actual cost of modern tank, a light tank today could easily cost at least USD2mil, if it's include modern FCS with TI, BMS , composite armour, APS etc, it could be as high as USD3~5mils!!!!
Therefore it is very large investment and it is not simple decision to make especially when it will be used for at least 2~3 decades.
But isn't that true of any weapons procurement? But that hasn't stopped SAF (or anybody) from buying new equipment. These include submarines, stealth frigates, LSV, UAV, Primus, SAR-21... etc.
Don't talk of money cos if you look at SAF procurement - it appears we have very deep pockets.
Why go out and buy F-16, F-15 and phase out A-4 and F-5? Are the A-4 and F-5 not able to fly? Anyone got problem with M-16? No, but still we now got a schmancy new SAR-21.
For some reason, SAF feels constant progress is necessary in all arms - except MBT. The buck stopped there. And we operate museum pieces that are as old as their crew's grandparents.
We are supposed to be operating well over 300 tanks if you count both the AMX-13 and Tempest published figures. So we must have at least 300 sets of well-trained crews at any one time. So getting them trained on another vehicle is a matter of time.
Lastly, there is this notion that some believe that tanks are obsolete becos of modern land based ATGM, precision ATGM from attack helos and fighters etc, some army are actually moving away from having any tanks and instead using low cost wheeled fire support AFV etc.
That is becos it was well demontrated in GW1, where most of the Iraqi armour were actually decimated by fighters and attack helo, way b4 the actual ground war started.
For example the Apaches itself destroyed 800 vehicles including 500 AFVs!!!
One thing tank for fire support role, tank is still needed, but for tank vs tank senario, is it still neccessary????
Turn on the TV and you see news footage of Iraq. In the background there is usually a big M1 MBT parked somewhere. Someone forgot to tell the Americans and the Iraqis that heavily-armoured MBTs are obsolete. Light wheeled vehicles like Stryker and Hummer are being massacred by RPGs and homemade bombs.
(Israel, with all her tank experience in urban and non-urban situations, is still going for tracks, heavy armour and tank cannons.)
Iraqi convoys got massacred cos they had no air cover.
Why is it that because an MBT can be destroyed by aircraft, it means an MBT is obsolete?
Nearly everything can be destroyed by enemy aircraft without air cover, including jeeps, trucks, radar, ships, helos, soldiers. Does that make all those things obsolete?
I dunno, becos with longer range ATGM as compare with tanks, attack helo etc, it could still decimated a large armoured force, that is why the SAF Gen was saying last year that SAF might be looking having a light tank replacement using missile only, instead of a tank gun!!![/b]
Well, look at the undisputed leader of armour - Israel. I don't see them replacing their 120mm guns with missiles.
The US had a tank in the 70's called the M551 Sheridan. It had a 152mm little tube that fires missiles and conventional rounds. The missile tank concept never quite took off and today, the US continues to use cannons.
The argument was that a tank cannon is still faster, cheaper and more versatile than a missile.
I don't know in detail what the SAF general said. But vehicles - not necessarily a tank - mounted with ATGWs already exist in the SAF inventory including LSV. If you can mount a TOW missile on a bicycle, it'll also be able to kill a tank. So you don't need to waste a tank by arming it with only missiles.
The tank, with its armour protection, is to provide a
punch (SAF Mailed Fist emblem) for ground troops and also to destroy enemy tanks when encountered. But if your tank is armed only with missiles, what does it do when it encounters a fortified objective? Fire an ATGM?
And in the process, it must also lend itself to be invulnerable to enemy fire as much as possible. So it needs heavy armour. Just because ATGM can destroy a modern tank doesn't make the tank obsolete. Cos enemy troops aren't always armed with ATGMs as if these things are common currency. What's common however, are infantry rocket-launchers like RPGs or RR like our 84mm. Any tank we get must be able to withstand attacks from these weapons. Otherwise it is about as useful as a pickup truck.
And if enemy aircraft shows up the right thing to do is to make sure of our own air cover. And all armour must righlfully have its own air defence elements like V-200 with RBS-70 etc.
Just because aircrafts can destroy tanks doesn't mean we don't need tanks anymore. One system doesn't make another system obsolete - it just compliments each other.