The Polish Cavalry of the 16th to 18th centuary were know as Husaria (Hussar) but were considered by Western standards as Medium (because the Horses didn't have armour). However, the Polish Husaria were actually Heavy cavalry with 6 metre lances (Kopia) and aslo armed with a szabla (sabre), a koncerz (long sword), a czekan (warhammer with a black spike) and two pistols (or the bow and arrow for Lithuanians).
Unlike their lighter counterparts, the Polish hussars were used as a heavy cavalry for line-breaking charges against enemy infantry or cavalry. Their usual form of attack was to make a rapid charge in compact formation. If the first attack failed, they would retire to their supporting troops who re-equipped them with fresh lances, and then would charge again. The concentration of lances would eventually break the enemy line, creating gaps that follow-on units could exploit. As panic spread and the enemy fled, they could be cut down with sabres.
The Standard Western and Eastern European pike was 4 metres long and dug into the ground behind the pikemen, which would mean 3 metres of the pike in front. The Lance when locked into the hussars arm was 5 metres long... you do the maths.
The reason for the wings was for the psychological effect for the enemy and the moral bonus for the Polish troops. It also stoped Tatar lassos and sabre attacks from the side and back.
Famous victories include the Battle of Vienna (1683) Byczyna (1588), Kircholm (1605), Kłuszyn (1610), Gniew (1626), Chocim (1673), Lwów (1675).
When fire arms in general improved, with greater accuracy, the husaria slowly disbanded but soon formed in to the Uhlan (Polish Lancers).
I'll post about the Uhlans when I get home...
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