If this simple and straightforward number is unable to let you have an intuitive sense of the complexity of Aeroplane Chess, let us compare it to some other board games that people might be more familiar with. After all, there is no damage when there is no comparison.
For example, let's talk about Go which is considered an extremely complicated board game.
Go's board is formed out of 19 by 19 squares, with a total of 361 intersections. That means that each round, a player is facing a 361 variables. But most people know that the intersections can be occupied by pieces, so when the pieces are placed, the number of available moves depend on the number of remaining pieces and the number of intersection points.