energy from the hot gases and deliver mechanical power to the output shaft. The GP and PT systems
are mechanically independent of each other; however, their speeds are controlled by the fuel control
Figure 5.10. Gas Producer Assembly.
DESCRIPTION OF FUEL SYSTEM
The fuel system of the T55- L-11 engine consists of the components illustrated in figure 5.
12. The T55-L-7 engine uses 14 vaporizing tubes in place of the 28 dual atomizing nozzles on the L-7C
and L-11 engine. A cross-section view of the flow divider and atomizing nozzles may be seen by
referring to figure 4.21 and 4.23 in chapter 4. The following subparagraphs discuss the components in
the fuel system.