IPS FUEL SUPPLY

	The fuel supplies for the IPS are contained within the primary 
deuterium tank (PDT) in the Battle Section and a set of thirty-two auxiliary 
cryo tanks in the Saucer Module. Redundant cross-feeds within both 
spacecraft and fuel management routines in the main computers perform all 
fuel handling operations during flight and starbase resupply stopovers. While 
the PDT, which also feeds the WPS, is normally loaded with slush deuterium 
at a temperature of 13.8K, the cryo reactants stored within the Saucer 
Module tanks are in liquid form. In the event that slush deuterium must be 
transferred from the main tank, it is passed through a set of heaters to raise 
the temperature sufficiently to allow proper fuel flow with minimal 
turbulence and vibration.
	As with the PDT, the auxiliary tanks are constructed of forced-matrix 
cortanium 2378 and stainless steel, laid down in alternating parallel/biased 
layers and gamma-welded. Penetrations for supply vessels, vent lines, and 
sensors are made by standard precision phaser cutters. They are installed 
by Fleet Yard transporters and may be transporter-removed for servicing at 
Starfleet maintenance docks. The internal volume of each auxiliary tank is 
113 cubic meters and each is capable of storing a total of 9.3 metric tonnes 
of liquid deuterium.
	Emergency flight rules allow for the injection of minute amounts of 
antimatter into the impulse reaction chamber in the event that short periods 
of overthrust or increased power generation are required. The main impulse 
engine is supplied by the Battle SectionÕs antimatter storage facility on 
Decks 41 and 42. The Saucer Module impulse engines are supplied by two 
dedicated antimatter storage pods on Deck 10. There is no transfer capability 
of antimatter between the two vehicles.  Æ