To fit a new front cone to a prop shaft firstly
- etch the propeller serial number to the rear face.
- cut in half with a hacksaw and etch a unique serial number to both halves.
- coat in Engineers blue to ensure seating in the propeller front boss.
Explanation
A propeller-shaft front cone is a split cone used as a matched pair, so a new one-piece blank is first cut into two halves and both halves are marked with the same identifying number to keep them together. This ensures the matched pair stays as a set; checking seating with engineers blue is a later step, not the first action.
shivam_sharma00 asking:
this is wrong answer pls check CAIP for correct ans.
option 3 is correct which is coat in Engineers blue to ensure seating in the propeller front boss.
Community Comments (6)
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dimky Posts: 514 20.04.2012 / 21:14
Hello.
Can you tell please CAIP leaflet and chapter?
Can you tell please CAIP leaflet and chapter?
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obrien99 Posts: 17 21.04.2012 / 20:10
i have just studied props and i thought the same as you that this question was incorrect. but read the question asks about FRONT cones. the application of engineering blue is the correct fro rear cone seating. in the jepperson propeller book it does mention cutting the front cone in half.
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obrien99 Posts: 17 21.04.2012 / 20:11
if you are studying propellers i would highly recommend the jepperson propeller book
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dimky Posts: 514 21.04.2012 / 23:07
Jepperson Aircraft Propellers and Controls Page 30 refers, right, Obrien? :)
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obrien99 Posts: 17 24.04.2012 / 23:22
Correct !
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Jordi Posts: 198 18.06.2020 / 12:53
so is the B answer right?If i understood correctly,we use engineers blue on the rear and the method of splitting on the front?
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