void addFuselage(float* front, float* back, float width,
float taper=1, float mid=0.5);
int addTank(float* pos, float cap, float fuelDensity);
void addFuselage(float* front, float* back, float width,
float taper=1, float mid=0.5);
int addTank(float* pos, float cap, float fuelDensity);