Heli() :
    _x(0),
    _y(0),
    _z(0),
    max_height(0),
    min_height(0),
    max_load(0),
    _load(0)
{
}

void Add_Load(int last);

void Remove_Load(int last);

void Heli::Add_Load(int load) {
    _load += load;

    if(_load != 0)
    {
        max_height = Heli.max_height / (_load*10);
    }
 }

int main()
{

    Heli a(100,-10,0,6000,0,300,0);  // x,y,z-Position, max./min. Flightheight; max. Load, load

    cout << "helicopter: " << a << endl << endl;

    a.Add_Load(100);
    cout << a << endl;