KV-1 one of the USSR's heavy tanks of WWll this being followed by the KV-2 with its 15.2cm(152mm) gun but the kv-1 armed with a 76.2 mm gun made it a very good gun at the time of it being built.In the early stages of the invasion of russia germany feared the KV and T-34 although soon lost this fear do too the kv not geting many modifacation in the early stages of the russia invasion but the KV was soon replaced by the IS/JS series of tanks.This restored KV has a wotking main gun and horizontal drive along.Controls-Trim/Vtol up/down=forwards and reverse-Roll-turret.From:R422 P.S To turn have trim down to go right and vtol down to go left while the other slider is up.