How many aircraft does the kc-135 refuel?

The Boeing KC-135 Stratotanker is a military aerial refueling aircraft that can refuel multiple aircraft at once. One KC-135 has the capability to simultaneously refuel up to three or four receiver aircraft, typically using the hose and drogue method of refueling for fixed-wing receiver aircraft and boom system aerial refueling for receiver aircraft equipped with the appropriate receptacle such as another KC-135 Stratotanker, an F/A-18 Super Hornet fighter, an AH-64 Apache AH-64 Apache attack helicopter, a B-52 Stratofortress, U-2, C-17 Globemaster or MV-22 Osprey . During a single 10 hour sortie , KC-135 can pass more than 300,000 pounds (140,000 kg) of fuel.