UFO Components
There are four primary UFO Components. You require varying amounts of these in order to research and build the Firestorm, the Lightning, and the Avenger. They can all be obtained during Alien Base Assault or UFO Ground Assault missions. --Bomb Bloke 17:07, 4 Mar 2005 (GMT)
UFO Construction
Alien craft consist of three main components - a power source, a navigation system and a hull built from alien alloys. The hull is specially designed to allow gravity waves to be directed and controlled. In addition a small quantity of Elerium is required to fuel the power source. Once the principles of construction are understood, and the functions of each component are known, then it is possible to build these types of craft.