Aircraft Rigging Exam Questions and Answers Latest Update Graded A+
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Aircraft Rigging
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Aircraft Rigging
Aircraft Rigging Exam Questions and Answers Latest Update Graded A+
Know how to inspect a cable - Answers (AFT PG. 1-47) To inspect for cable breaks, hold a rag in your hand and wipe every portion of the cable within reach. The rags snags on any broken strands that stick out of the cable. Move the...
Aircraft Rigging Exam Questions and Answers Latest Update Graded A+
Know how to inspect a cable - Answers (AFT PG. 1-47) To inspect for cable breaks, hold a rag in your
hand and wipe every portion of the cable within reach. The rags snags on any broken strands that stick
out of the cable. Move the controls and check the cable as near the pulley as you can reach. If there is
any possibility of corrosion, disconnect the cable and bend it into a loop to to make any broken strands
pop out.
Know how aircraft are rigged - Answers Rigging of controls for any particular airplane should be
accomplished according to the instruction of the manufacturer and TCDS, there are certain operations
common to almost all systems and by which rigging of the the majority of small airplanes can be
accomplished.
(Aircraft maintenance pg. 325)
Know the rules used on a primary control surface - Answers The TCDS sheets specify the required
control surface deflection, while the aircraft maintenance manual describes the procedures to set this
required deflection. When rigging the controls, be sure to follow the manufacturer's instructions
explicitly. When cables are rigged excessively tight, it creates a great deal of strain on the system of
prematurely wearing pulleys and making it difficult to move the flight controls(AFT pg. 1-47). Most of
the primary control cables are at least ⅛-inch diameter and are safetied with either 0.040 brass wire,
double wrapped, in both the single- and double wrap method of safetying. (AFT pg.1-49)
Know what to do after the drag and anti-drag wires are all properly tension - Answers Check for
squareness with a trammel bar
-all safety in proper place
Know what might cause the elevators be hard to move - Answers (AFT pg. 1-48) When cables are rigged
excessively tight, it creates a great deal of strain on the system making it difficult to move the flight
controls.
Know what a cable tension chart is for - Answers Use to get tension reading from tensiometer. Convert
dial reading to pounds Cable tension charts are used to determine which cable is necessary for the
aircraft based on the required tension needed from the cable, The Chart lists the tensile strength of the
cable for various diameter and types of cable material and strands and wires. (AFT pg.1-45 )
-temperature
Know what is temperature changes do to tension - Answers The hotter the temperature, it expands
(Aircraft structure) making cables tighter.
The colder the temperature, it contracts (Aircraft structure) making cables looser.
(Notes)
, Know how ailerons move - Answers Rotation of the control wheel turns the drum to which the aileron
control cables are attached. If the wheel is rotated to the right, the right cable is pulled and the left one
is relaxed. The cable rotates the right aileron bellcranks, and the push-pull tube connected to it raises
the right aileron. A balance cable connects both aileron bellcranks, and as the right aileron is raised, the
balance cable pulls the left bellcrank and its push-pull tube lowers the left aileron.
Know how to balance a control surface - Answers (AFT pg. 1-52) The control surface is placed on
balancing mandrels within a draft-free room. The mandrel are positioned under the hinge points in a
way that allows the control surface to pivot freely without dragging or binding . A balance beam or jig is
then installed to determine the moment arm required to balance the control surface. The beam consists
of a graduated measuring scale in which a weight can be moved to bring the control surface to a
horizontally level position or other position specified by the manufacturer. Once in the proper position,
the distance that the weight is located ahead of or behind line is recorded and checked against the
manufacturer's specification. If the moment arm (weight x distance) exceeds the manufacturer's
specifications, weight is added or removed from the control surface so that the balance beam weight
falls within the manufacturer's specified range.
Know how to splice cable - Answers Running splices may be made to join 2 lengths of cable using 2
Nicopress sleeves. When 2 sleeves are used, the splice are approved as having the full cable strength
(AFTB pg. 1-45)
A woven splice cable is a wire cable that has 75% the strength of the cable by using the Army-Navy five
tuck splice or the Roebling roll. These two are time consuming and are out of favor and often replaced
with a nicopress. Using a hand-woven splice, either the Army-Navy five-tuck splice or the Roebling roll.
Or Nicopress. No portion of the splice comes closer than 2 inches to any fair-leads, use a go/no go
gauge, proof-loading to 60% of its rated breaking strength.
Know the final check before covering a wing with fabric
squareness and check if everything is secure. - Answers The final check in rigging the ailerons is to be
sure that all of the turnbuckles and any bolts or connector in the entire system are properly adjusted
and safetied.
-check spars.....
Know the general rules for safetying hardware - Answers As a general rule, all fasteners on an aircraft
are safetied in some manner. Safetying is defined as securing by various means any nut, bolt,
turnbuckle, etc., on the aircraft so that vibrations does not cause it to loosen during operation. (AFTB 2-
55) Do not re-use, double or single wrap method, wrap the wire at least 4 times around the shank
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