Jabiru j160, Техническое руководство

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Aircraft Technical Manual
Jabiru Aircraft
Pty Ltd
JTM001-5
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
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ISSUE 1 2 3 4 5 Dated: 29th October 2014 Issued By: AS Page: 59 of 298
Figure 17
– Normal and Jammed Control Illustration (all J-Series)
5.18.1 Inspection A:

This inspection is to check if the controls are configured in such a way that there is a point of
overlap as shown in Figure 17. At noted above the point of overlap is the critical point at
which severe control jamming becomes possible.
- Check each control by moving it to its maximum deflection and inspecting for a control gap
– as
shown in the example of Figure 19.
- Note the result of Inspection A and carry on to Inspection B in all cases.
5.18.2 Inspection B:

This inspection has two purposes: to check to see if jamming is likely due to insufficient clearance at
the control’s point of overlap and to check if the control hinges are sufficiently stiff. All controls must
be inspected in this way regardless of the results of Inspection A.

Check the clearance between the control surface and the aircraft at the point of overlap as detailed
below:
-
Set the controls so that the control being tested is at the point of overlap
– as shown in the right
picture in Figure 19. If the control being tested does not deflect to a point of overlap then place it
as close as possible to the overlap point.
- Press against the control using a thumb
– pushing the control in the direction that would close the
control clearance. Measure the control clearance while this load is applied.
- Remove the load from the control and re-measure the control clearance.
- Controls are to be tested this way at every hinge. The force to be applied in each direction is
approximately 5-7kg (11
– 15lb). Inspectors can “calibrate” their thumbs by pushing onto a set of
scales to indicate how hard they need to push. See Figure 20 for details of where to push on the
controls.

Rectification work is necessary whenever any of the following criteria are met:
“Control at the point of
overlap” – rear edge of
aircraft lines up with the
front of the non-hinged side
of the control.
“Control” – in this
case an aileron
“Aircraft” – in
this case the
wing.
Jammed control
–
excess hinge deflection
with the control at the
point of overlap results
in jamming.
“Control
clearance”