| Most rockets have very few external parts, though | | | | planes,while others look like enormous bullets. |
| internally some of them areextremely complicated. | | | | The Titan is a United States Air Force |
| The body which encases the inner parts of a rocket | | | | surface-to-surface intercontinentalballistic missile. This |
| isknown as the air frame. This houses the | | | | two-stage rocket is launched by a |
| combustion chamber, the fuel tanks, thedevices by | | | | 300,000-pound-thrustengine which separates and falls |
| which the rocket is guided, and the nose cone. | | | | away when burned out. A second engine, with |
| The nose cone, which is located at the upper tip of | | | | athrust of 80,000 pounds, then drives the rocket into |
| the rocket, is where the warheador payload is | | | | space at a speed of 17,000miles per hour. Both |
| carried. At the lower end of the rocket are the | | | | engines are liquid-fueled. |
| exhaust nozÂzlesthrough which the propelling | | | | The Titan, which is made of aluminum, is larger than |
| jets of gases escape. | | | | the Atlas, but is lighter,weighing 220,000 pounds. Its |
| Rockets vary in shape and size, no two being alike. | | | | length is 98 feet and it has a diameter of 10 feet. |
| Some are tall and slim; othersare short and stubby. | | | | The first flight of the Titan was made on February 6, |
| Some have wings and fins and resemble jet fighter | | | | 1959. |