17.7 Propeller Storage And Preservation

Question 1

What are the 4 time periods propellers are stored for

Answer 1

Short term 3 months
Long term 6months 12 months & 3 years

Question 2

How should wooden propellers be stored

Answer 2

Placed horizontally for moisture distribution

Question 3

What should be done if a propeller is to be stored on the wing for over 3 months

Answer 3

Pitch change mechanism must be flushed using an inhibiting oil then covered with wax paper

Question 4

What should be used on all external parts to protect against corrosion

Answer 4

Lanolin

Question 5

How must metal propellers be stored

Answer 5

Upright

Question 6

What should be done for 12+month storage

Answer 6

bearing needs inspection for brinelling and propeller should be re inhibited and re protected

Question 7

What should be done every 3 years

Answer 7

Propeller should be sent for an overhaul

Question 8

What should be done for 6month storage if the bearings are pre loaded

Answer 8

Blades should be rotated to prevent bearings from brinelling

Question 9

What should be done for 6month storage if the bearings are pre loaded

Answer 9

Blades should be rotated to prevent bearings from brinelling