"It is chivalry that has no equal in the world;
without seeing it with your own eyes,
its vigor and splendor is impossible to imagine." (Cosimo Brunetti, 1676)
The answer is both "yes", as it's completely different kind of hussars that the one mentioned in the question about effectiveness of Cossack cavalry, and "no", as there were around 20000 horses in the charge, not 3000.
Polish winged hussars
Original hussars were light cavalry. But when prince of Transilvania, Stephen Bathory, became king of Poland in 1576, he completely reorganized these forces into elite, heavy units, that were much well trained and equipped, with unique tactic. They became famous as so called "winged cavalry". It will be easier to understand why, when you look at the picture below:
Hetman's guard, painting by Wacław Pawliszak
There was a strong belief that these wings caused psychological effect on the enemy, as horses and riders were afraid of it. Surprisingly it's mentioned mainly by foreign, not Polish sources, what now leads historians to think that it was just a rumour.
What made husaria of Jan III Sobieski different than other heavy cavalry units of 17th century? Few main facts are worth to point out:
Husaria used horses that were breed and trained specially to this aim. It was a mixture of Polish and Tatar blood horses, that were able to run very fast even with very heavy load. They were also recovering very fast. Thanks to that and to special kind of saddle, hussars and the horse could wear much heavier armor, while they could still repeat the charge several times during the battle.
The tactic of husaria included special kind of charge, which proved to be decisive in many battles won by Polish-Lithuanian Commonwealth. By strengthening the formation at the last, crucial moment before crushing the enemy, it was able to completely break the enemy lines, while still being able to change formation or direction even a short time before crushing the opponent. By combining speed and mobility with advantages of strong formations, it was effective against both Eastern and Western army forces. Apart from Vienna, check also Battles of Kircholm (1605 against Sweden) and Klushino (1610 against Russia) for more informations.
As I've written, it could be repeated during the battle, going on and through the enemy line, until the enemy forces were finally broken. The main weapon was a lance, which varied in length depending on the enemy. Hussars also had a stabbing sword (koncerz), a sabre (szabla), pistol (or two), and often a carbine or arquebus (bandolet), and even a bow.
Winged hussars in Battle of Vienna
I've got a tendency of depicting this battle with colorful details, legends and anecdotes which are sometimes more or less fake (as it's typical to tourist guides), but I'll try to stick to the facts.
The charge of winged hussars started at 6 pm, while the battle started in the morning. Different historians counts the overall number of cavalry that took part in it as more or less 20000 of horses, what makes the charge of John III Sobieski the biggest cavalry charge in history. This way the mentioned 3000 were only the heaviest, frontal part of the charge, which was supported by other Polish, Austrian and Bavarian cavalry forces under the command of Polish king.
As for Polish cavalry that was stopped in difficult terrain, mentioned by Drux, it's surely connected with the charge of Zwierzchowski and his 200 hussars, that were sent by Sobieski to check enemy lines and possible traps. During the charge it was stopped by the ditch or tremp, before it could continue and return to the king with heavy losses. Thanks to that, the main forces were able to avoid it.
The attack lasted for half an hour, after which Ottoman army went into panic and run away from the battlefield.
Turkish point of view
But let's look how Turkish chroniclers were describing this event in 17th century. For them it was a holy war and there was a belief that no "European unfaithful dogs" could beat warriors of Allah on the field. This way they focused on searching for the reasons of lose among themselves.
In his works, Silahdar Findiklili Mehmed Aga, counts few such reasons:
- hordes of civilians (merchants and others) going all the way from Ottoman Empire to Vienna because of the possible income (e.g. slaves), who started the panic
- tiredness after few weeks of battles in Austria and all day of fights at the fields of Vienna
- exhausted horses which according to the chronicler didn't eat anything valuable for two months before the battle, while the best Ottoman forces were cavalry
- indiscipline and too big belief that the victory will come without any problems, based on previous battles against Austrians during the campaign