swampyankee
Chief Master Sergeant
- 4,004
- Jun 25, 2013
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For comparison, the MTBO of the AVDS-1790 variant offered for the M1 was, iirc, under 100 hours. There was quite a lot of trouble getting the AGT-1500 as installed in the M1 to become fully serviceable, mostly as Chrysler (which was the original manufacturer and designer of the M1 tank) couldn't design a decent air cleaner.The M1's AGT1500 (1500 HP) multi-fuel turbine accounts for about 40% of the platform's current operational maintenance. Although the original intent was to have a 2000 hr MTBO (the requirement was 2000 hr MTBO) the goal was never met (I think). Currently the MTBO is ~700 hrs. This is partly because of aging engines and associated systems, and partly because the M1 has been so heavily used - much more so than envisioned in the original requirements.
The Leopard II's MT883 (1500 HP) multi-fuel diesel met the originally requirement for 2000 hr MTBO, and has maintained that requirement in operations.
There is however, more routine maintenance required on the MT883. I have not been able to find out the difference in times required by levels of maintenance for the 2 engines, but it is probably more for the diesel.
Incidentally, the 'EuroPowerPack' (a variant of the MT883 diesel and Renk transmission) was fitted to a M1A2 in the late-1990s and completed trials satisfactorily. Fuel usage during the trials was ~50% compared to the turbine powered control model.
I can only guess, but due to Ukraine's armed forces conducting urban warfare - I wouldn't be surprised if the Russians already lost a 1000 T- members.
Ukrainians claim the Russians have lost 969 tanks as of 27 April.
Open source verified Russian MBT losses are 564 (per Oryx blog). That includes 300 destroyed, 215 captured and a further 49 abandoned. Predominant losses are T-72Bs.
UK MoD statement from 25 April was that Russia has lost "at least" 530 MBTs and 1600 other armoured vehicles.
The truth is probably somewhere between the Ukranian and the open source verifications - call it 750 MBTs.
EDIT: The Oryx figures reportedly don't include Russian tanks damaged and then recovered. There are at least 80 parked at a couple of sites in Russia. I suspect that while some of these will be returned to combat, quite a few will never leave these sites.
I hope your right, but I don't know. The EU has probably purchased close to 40 billion Euros worth of gas and oil from Russia since the invasion began. And, if they continue the contracts to the end of the year, which as far as I know is still the plan, that's seven more months of purchases at tens of billions of Euros a month. I'm not sure how much this bolsters Putin's war machine, but I think about a trillion Euros is a lot of money.I bet the money to repair them is pretty scarce, unless the Chinese do some Lend-Lease of their own.
Also, I am generally skeptical of sanctions. Countries always seem to find work arounds and in Russia's case there are many countries that would help just to thumb their noses at the West.
They require different maintenance. IIIRC, from when I worked at AVCO-Stratford, the MTOH for the AGT-1500 was about twenty times that of the diesel alternative
My experience with turbines (mostly RR Darts and PWC PT6s) is that they have impressive TBOs, but if they're in daily use they're constantly in the shop for (minor) jobs such as Hot Section Inspections, turbine wheel changes, fuel nozzle flow checks, bleed valve changes, accessory timeout replacements, etc. Our PT6s started with 5300 hour TBOs with extensions based on a condition monitoring system, some reaching 10-12K hours of hard usage with very few of the original parts remaining when we traded them in for remans.The M1's AGT1500 (1500 HP) multi-fuel turbine accounts for about 40% of the platform's current operational maintenance. Although the original intent was to have a 2000 hr MTBO (the requirement was 2000 hr MTBO) the goal was never met (I think). Currently the MTBO is ~700 hrs.
couple months ago one of the polish defence specialists published good assasement of the VKS condition. Just to bring only summary of this, by his opinion, condition of the military aviation of russia is close to catastrophical (publication has been made could be two months before war). He pointed to the situation that majority of russian air force equipment already reached or will reach soon limits of equipment life. Observing news stories everything seems to confirm his opinions - for me significant indication is lack of reports of Su-24 actions (officially its number should be bigger than Su-34), no reports about significant activity of MIG29 from russian side and so on...Another significant item is close to none usage of the guided air to ground ammunition by russians - probably stockpiled quantities were enough just for presentation during MAKS airshow.If the Russians are actually paranoid about NATO attacking them when their attention is on the Ukraine, then there is no way that they will deploy more than a limited amount of their air power into the Ukraine. It is just too much of their defensive/offensive ability to risk not having it available and deployable where needed in case of a major NATO attack.
As I mentioned up-thread, in a head-to-head air war, NATO and the US would shred the Russian air forces. The Russian higher-ups should know this. Pretty much every nation that uses the current Western air platforms and/or uses the current Russian platforms knows this, and are often quite open about it on their website discussions. I am not saying that the US and NATO would not take serious losses, but there really is no question as to the general outcome.
What? Your family is like mine was?Harvey Wallbanger's more my style: sweet tasting and lethal, with a hangover to reinforce your guilt complex.
You sure as hell aren't me!!!!!!!!!!!!!!!!!!!!! Strike me and die !!!!!!!!!"Hell no! You're the guy that offended him! Take your punishment and turn the other cheek!"
We both don't have a problem to discuss different point of views - but we need to be careful that our (partially opposing) arguments do not end up with us placing wrongI'm sorry if I gave the impression I was disagreeing with you; I wasn't. I don't see us disagreeing as much as (it seems to me) we each have our own particular concerns and perspectives.
I believe this to be a rather serious issue. Since Russia has been trying (actually did) to justify juridically their political and military actions towards the Ukraine, they are just a interestedBlowing up stuff in other countries is an "illegal action?"
I don't agree with that assumption, because that is exactly as for what the Gepard was build for - to accompany infantry and armored vehicles into battle (not 20 miles behind).If you're operating your mobile air defence guns within sight of the enemy's MBTs you're doing it wrong. I believe the Gepard will be used close behind the front lines in concealed positions to destroy Russian helicopters and strike aircraft. Any MBT close enough to see the Gepard had better already be dead or fighting for its life against NLAW/Javelin equipped Ukrainian infantry. On the Gepard, can it reliably down cruise missiles and land attack missiles?
Sticking to a law isn't good by itself if the law isn't good.True, but on the other hand I kind of admire them for being able to stick towards their laws - unlike presently Germany.
Not disagreeing with maybe non-suitable laws, but the Swiss laws (contrary to almost any other democratic country) are IIRC solely based on the populations decisions.Sticking to a law isn't good by itself if the law isn't good.
Regarding the swiss themselves, sticking to banking secret and giving closed eyes to all the money coming from all kind of despots, satraps and money launderers in a gay people in the military 1990s bill (don't ask, don't tell) maybe be lawful but certainly is not right.