- A cutaway drawing of a auxillary gas turbine power unit for a aircraft jet engine.
- Small gas turbine history.
- Small gas turbine history.
- Closeup of the governor.
- Small gas turbine history showing the governor.
- Small gas turbine history.
- Lucas Aerospace CR201 APU
- Nimrod APU
- Rover AAPP MK10401 twin shaft engine (HS748 APU).
- Small gas turbine history.
- Small gas turbine history.
- Small gas turbine history.
- Small gas turbine history.
- Small gas turbine history.
- Small gas turbine history.