franchise-star-trek-tng-technical-manual1

2.0 SPACECRAFT STRUCTURE2.0 SPACECRAFT STRUCTURE2.1 MAIN SKELETAL STRUCTUREThe primary spaceframe of the Galaxy class starship isfabricated from an interlocking series of tritanium/duraniummacrofilament truss frames. These members average 1.27m 2 in cross section, and are located an average of every 25meters across the ship's exterior.Larger numbers of these trusses are located integral tothe main and saucer impulse engine sections, the warpnacelle pylons, both saucer and battle sides of the dockinglatch interfaces, and along the centerlines of both hull structures.Smaller trusses, averaging 0.53 m 2 in cross section, arelocated every five meters on average, and also provideinternal supports within the deck and core structure of thespacecraft interior.This basic mechanical framework provides physical integrityto the vehicle while at rest. A parallel series ofaluminum crystalfoam stringers are phase-transition bondedto the primary trusses, providing low-frequency vibration attenuationacross the main truss structure, as well as supportfor certain utility conduits.Also attached to these stringers are various conformal2.1.1 USS Enterprise main skeletal structure