The P-1 Tomcat is the first fighter plane made by Canadian Federation that can achieve air supremacy while its 2x 2500 lbs bomb dropped to the enemy. This plane also was the first plane that able to aerial refueling thanks to the two tank system. The two tank system is basically two tank with valve in the middle. When refueling the valve closed and began receiving fuels. After the tank filled up with fuels, the valve opens so the fuels got transferred to the other tank. If neccecary, after the refuel completed the valve will closed and will receive more fuels to the tank allowing if the first tank almost empty the other tank would serve as auxillary tank.