Environmental Systems

1. Environmental Systems

2. Oxygen Systems • What are three basic configurations of oxygen systems?

3. Oxygen Systems • What are three basic configurations of oxygen systems? • Continuous-flow • Diluter-demand • Pressure-demand

4. Continuous-flow • Name three types of Continuous-flow oxygen systems?

5. Continuous-flow • Constant flow • Adjustable-flow • Altitude-compensated

6. Oxygen Systems • What is the most popular system in modern aircraft? • Altitude-compensated

7. Oxygen Masks • Name three types of oxygen masks?

8. Oxygen Masks • Name three types of oxygen masks? • Oronasal rebreather • Cannula oxygen breathing device • Quick-donning

9. Oxygen Systems • With an altitude-compensated regulator and an oronasal rebreather, when will the bag fully inflate? • Why?

10. Oxygen Systems • High Altitudes • Decreased atmospheric pressure and increased oxygen flow rate

11. Oxygen Systems • In a continuous-flow system when the mask connector contains a flow restrictor, what color is the pilots mask?

12. Oxygen Systems • In a continuous-flow system when the mask connector contains a flow restrictor, what color is the pilots mask? • Red

13. Oxygen Systems • To what altitudes are the following oxygen systems usable • Continuous-flow

14. Oxygen Systems • Continuous-flow 25,000 • Diluter-demand

15. Oxygen Systems • Continuous-flow 25,000 • Diluter-demand 40,000 • Pressure-demand

16. Oxygen Systems • Continuous-flow 25,000 • Diluter-demand 40,000 • Pressure-demand above 40,000

17. Oxygen Systems • What kind do we have in the King Air? • Pilots have Diluter demand • Passengers have Constant flow.

18. Oxygen Systems • How can oxygen be stored?

19. Oxygen Systems • Cylinders or Chemical Oxygen Generators

20. Oxygen Systems • Where do we get oxygen to refill cylinders? • Look in the Airport Facility Directory. Ensure you use aviation oxygen.

21. Oxygen Systems • What color are most high pressure oxygen cylinders painted? • Green

22. Oxygen Systems • What is the lowest pressure to which an oxygen bottle should be depleted? • Why?

23. Oxygen Systems • What is the lowest pressure to which an oxygen bottle should be depleted? 50 psi • Why? • To prevent moisture from entering the cylinder

24. Oxygen Systems • How long will an 66 cu ft cylinder of oxygen last?

25. Oxygen Systems • How long will an 66 cu ft cylinder of oxygen last? • Depends on the temperature, pressure in the bottle and the number of people using the bottle.

26. Oxygen Systems • What are the pilot oxygen requirement for Part 91 flying

27. Oxygen Systems • FAR 91.211 From 12,500 to 14,000 feet flight crew up to 30 minutes without. • Over 14,000 minimum flight crew must be provided and use supplemental oxygen

28. Oxygen Systems • Over 15,000 each occupant must be provided supplemental oxygen.

29. Oxygen Systems • What are the pilot supplemental oxygen requirement for Part 135 flying?

30. Oxygen Systems • FAR 135.89 From 10,000 to 12,000 any part of the flight over 30 minutes in duration. • Over 12,000 continuously

31. Cabin Pressurization • What training must you receive to act as PIC of an pressurized aircraft certified for operations above 25,000 feet.

32. Cabin Pressurization • FAR 61.31(g) (1) logged ground training and obtained an endorsement in the person’s logbook or training record. • FAR 61.31(g) (2) endorsement for flight, simulator or FTD.

33. Cabin Pressurization • Ground training • High altitude aerodynamics and meteorology • Respiration • Effects, symptoms and causes of hypoxia

34. Cabin Pressurization • Duration of consciousness w/o suppl oxygen • Effects of long usage of suppl oxygen

35. Cabin Pressurization • Causes and effects of gas expansion • Preventive measures for eliminating gas expansion and high altitude sickness

36. Cabin Pressurization • Physical phenomena and incidents of decompression • Any other physiological aspects of high-altitude flight

37. Cabin Pressurization • Flight, Simulator or FTD Training • Normal operations above 25,000 feet • Proper emergency procedures for simulated rapid decompression without actually depressurizing the aircraft • Emergency descent procedures

38. Pressurization Components • What component modulates between open and closed to allow the pressurization air to vent out of the cabin at a controlled rate.

39. Pressurization Components • What component modulates between open and closed to allow the pressurization air to vent out of the cabin at a controlled rate. • Outflow Valve

40. Pressurization Components • If the outflow valve fails, will the pressure continue to rise until we have a rapid decompression?

41. Pressurization Components • If the outflow valve fails, will the pressure continue to rise until we have a rapid decompression? • No, you can activate the safety/dump valve

42. Pressurization Control • What is meant by differential range?

43. Pressurization Control • What is meant by differential range? • When the pressurization system is working to prevent the cabin differential pressure from exceeding maximum limits.

44. Cabin Differential Pressure • What is the typical cabin differential pressure for general aviation aircraft? • 3.35 to 4.5 P.S.I.D • For large transport category aircraft • 9.0 P.S.I.D

45. Pressurization Control • What is meant by isobaric range?

46. Pressurization Control • What is meant by isobaric range? • When the system is working to maintain the cabin pressure altitude at the preset level.

47. Cabin Pressure Controller • What three items do you normally set in the cabin pressure control system?

48. Cabin Pressure Controller • What three items do you normally set in the cabin pressure control system? • Cruise Altitude • Cabin Altitude Selected • Rate control knob

49. Instrumentation • Name three instruments used in conjunction with the pressure controller.

50. Instrumentation • Name three instruments used in conjunction with the pressure controller. • Cabin Differential Pressure Gage • Cabin Altimeter • Cabin rate-of-climb instrument