Originally posted by Apers 
I've been asking about this ever sice I started playing, and I've never gotten a straight answer;
what the hell is it? 
 ENY was brought into the game to help with side balancing. when numbers are above 50 it takes it by players online. for example
Bishops=130            ENY 12.0
Knights= 110            ENY 0.0
Rooks= 125              ENY 8.2
when the player count is below 50 it takes it by % of players flying for exsample
Bishops 25     Player % in flight 10%     ENY= 0.0
Knights 20      Player % in flight 50%     ENY= 17.3
Rooks 17         Player % in flight 20%    ENY= 0.6
ENY limits the plane set for each country when one country has greater amount of players. so in the lower count Knights would not be able to up any planes with a 17 eny or less so this would mean you would not be able to fly LA7s Hurricanes so on so on. you have to fly a 18 ENY plane or higher, or you do what HTC is trying to do with this and switch sides and fly for a diffrent country.