Combined, they carry 1,590 kg (3,500 lb) of extra fuel, while adding extra lift and expanding combat radius by 130 nmi (240 km) with a small transonic acceleration penalty. Chengdu J-10 Wind Tunnel tested by Chengdu. BAC Strikemaster Conformal fuel tanks were installed on the wingtips. WWII: Supermarine Spitfire in the belly. Messerschmitt Bf 109 in the belly. Messerschmitt Bf 110D-1 in the belly – nicknamed Dackelbauch (dachshund's belly). Distended internal tanks Distended internal tanks are fuel tanks that either create a bulge in the fuselage, or are mounted flush with the fuselage. English Electric Lightning Conformal ventral store was used for a small or large belly fuel tank which bulges out from the underbody. Gloster Javelin fitted with dual flush-mounted belly tanks with a capacity of 1,137 liters (300 US gallons). They were known as "bosom tanks" or "Sabrinas". Gloster Meteor. Shenyang J-6. Nanchang Q-5 "Fantan" weapons bay fuel tank extends below the fuselage profile. References Notes Green, William and Gordon Swanborough. The Complete Book of Fighters. New York: Barnes & Noble Inc., 1988. . Lambert, Mark, ed. Jane's All the World's Aircraft 1993–94. Alexandria, Virginia: Jane's Information Group Inc., 1993. . Aircraft fuel system components Fuel containers