Before I give the answer let me just say:
Both have advantages and disadvantages. The A-10 is more armored and more likely to survive a hit, an SU-25 is faster and more maneuverable and it's less likely to get hit in the first place and still has some good armor so can survive some amount of small fire which...
Best answer: Before I give the answer let me just say:
Both have advantages and disadvantages. The A-10 is more armored and more likely to survive a hit, an SU-25 is faster and more maneuverable and it's less likely to get hit in the first place and still has some good armor so can survive some amount of small fire which is unlikely to hit anyway. The modern SU-25 have systems which will jam most missile seeking equipment.
As for armament, this is where it gets interesting, the A-10 has better gun and more bombs, the SU-25 carries more rockets and more sophisticated one, this basically effectively means the planes have different styles of completing same task
As for defense from the air, the SU-25 has better ability to escape air to air threats, and is more likely to survive attacking a technologically advanced opponent because A-10's armor is not going to protect it from several MANPADS or 1 vehicle's missile, considering it's slow speed it's an easy target for missiles and even heavier guns.
And now to destroy some myths.
"SU-25 gets shot down more so it's worse, just look at recent news", yeah SU-25 gets shot down more because it's actually doing combat at this time, the A-10 is not fighting anyone, let alone well supplied army. The SU-25 is currently up against rebels in Ukraine who have access to fairly new AA equipment and is also up against terrorists in Syria who lunatics like John McCain have explicitly said they want to supply with modern AA systems. A-10 it's fair share of casualties in middle East during Iraq wars.
"SU-25 is outdated and is old Russian garbage", Russia has upgraded it's SU-25 fleet to include more advanced tech, some avionics are more advanced than what A-10 has. It has better tech when it comes to guided missiles and defense from guided missiles.
"One clearly outclasses the other", not really they both fly majority of their sorties successfully by a large number. The SU-25 however is used by several nations and is doing far more combat these days so obviously there will be more losses now. Both Russia and US have professional pilots, A-10 has been exclusively used by US, SU-25 on the other hand has been sold or given to many less capable and poor nations including Ukraine who don't properly maintain aircraft and often fly outdated, rusting and decaying planes with no upgrades.
I would really have to say it depends on what you're attacking, A-10 is slow, well armored and carries a lot of firepower but against a modern military this Armor is not enough to do much. SU-25 has guided equipment, can go faster and can strike at high speeds but against infantry or insurgents you're striking at small vehicles and people on foot and it's harder to get a shot with cannon or bombs and slowing down is slightly bigger threat because of slightly less armor.
ANSWER: A-10 performs some tasks better against some opponents but the SU-25 can be used in greater variety of ways and against more technologically advanced opponents. A-10s armor does help in ground attack against insurgents and outdated vehicles but anything more advanced would easily shoot it down if it were to try something like that at low speeds. SU-25 is designed to attack ground at higher speeds and has far more anti-missile and air defense systems in place, it actually stands a chance if enemy planes come, not saying it will shoot them down but it has systems in place to evade Air to Air and ground to air missiles
1 day ago