Propeller track, Other Engineering

PROPELLER TRACK

An out of track propeller will suffer an imbalance caused by the Dynamic and Aerodynamic being out of balance.

Propeller track is the path followed by a blade segment in one rotation. If one blade does not follow in the same track as the others, its angle of attack and thus the thrust it produces, is different to the remaining blades, and vibration will result.

A simple blade tracking check would entail, chocking the wheels to prevent the aircraft from moving. Place a board under the propeller so the blade tip ‘nearly' touches it. Mark the board at the tip of the propeller, and then rotate the propeller until the next blade approaches the board...mark the second blade position. Repeat for all blades. It can be observed from the marks generated, the extent of tracking deviation between blades. The amount that blades can be out of track is specified in the relevant Aircraft Maintenance Manual (AMM).

1759_propeller trak.png

For information only, an average ‘maximum' permitted deviation in track is 0.25 inches. Wherever possible the pointer should be attached to the aircraft structure to avoid the possibility of aircraft movement during the check.
Small propellers may be checked using a special mandrel, a surface table and a height gauge.

 

 

 

950_propeller trak1.png

Posted Date: 9/14/2012 4:47:33 AM | Location : United States







Related Discussions:- Propeller track, Assignment Help, Ask Question on Propeller track, Get Answer, Expert's Help, Propeller track Discussions

Write discussion on Propeller track
Your posts are moderated
Related Questions
At a machine tool plant, five jobs must be completed each day. The time it takes to do each job depends on the machine used to do the job. If a machine is used at all, there is a s

Air Operator's Certificate (AOC) A Company operating an aircraft for the purpose of Public Transportation, within the UK, must have an AOC granted to the company, in accordance

Answer the following questions: What are the three forms of a business organization? What are the advantages and disadvantages of each form? For a corporation, what is the overall

FIELD EFFECT TRANSISTORS (FET) A field-effect transistor (FET) is a semiconductor device in which the current flowing through a conduction channel i.e. between two terminals ca

how to generate random numbers in rectangular region?

is there any open innovation engineering web portal in india


Means of escape: The means of escape can start at any point inside a building where there may be people.      The means of escape end when 'ultimate safety' is attained out

Installing FLUENT on a MWS machine Fluent was originally developed on unix and graphical output was provided by calls to the X Windows graphics system For this reason provided by c

what is electrical transmission and electromagnetic radiation in the form of energy transfer?