Aircraft General Knowledge 3

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Across
  1. 2. Gyro precession occurs at ___ degrees to applied force
  2. 6. Increases surface area for heat transfer on cylinders
  3. 7. System with oil in separate tank and scavenger pumps
  4. 9. Oil grade with viscosity improvers for wider temperature range
  5. 10. Blocked static vent during climb: ASI reads ___
  6. 11. Additive type in AD oils; non-metallic
  7. 12. Compass error: acceleration on east/west heading in NH causes apparent turn to ___
  8. 13. Wet-sump disadvantage: not adaptable to this type of flight
  9. 15. Magnetic compass fluid damps this
  10. 17. Oil type recommended for first 50-hour break-in
  11. 18. Lowest temperature oil vapor ignites but doesn't continue burning
  12. 19. Instrument affected only by blocked pitot tube
  13. 20. Oil analysis used as this type of maintenance tool
Down
  1. 1. Darkening of AD oil is a sign it is suspending these
  2. 3. Lubrication method using pressure pump plus splash
  3. 4. Force air over cylinder fins to prevent hot pools
  4. 5. Oil provides up to 40% of cooling in this type of engine
  5. 8. Lowest temperature at which oil will flow
  6. 14. Gyro property: maintains direction in space
  7. 16. Viscosity decreases with increasing this