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: 61 of 298
Figure 20
– Test Load Application (all J-Series)
Figure 21
– Elevator Gap Cross Section (all J-Series)
5.18.3 Inspection C:

This inspection is to see if there is any travel restriction of a control at deflections other than at the
control’s point of overlap.

For the purposes of this inspection a travel restriction is defined as a one-way jam
– i.e. the control
cannot reach full deflection but is able to move freely in the other direction.

While a control is very unlikely to completely jam due to a travel restriction the fact that the control is
not achieving its full travel must be addressed.

Travel restriction normally pre
sents at the opposite control travel extreme to the control’s point of
overlap
– i.e. for the elevator shown above (Figure 21) full stick-forward deflection is the point most
likely to exhibit a travel restriction as the lower surface of the elevator hits the aircraft.

Inspect each control as detailed below:
- Inspect the control for scratches and marks (as shown in Figure 22) in the overlap area where the
control runs inside the aircraft. If no marks are found further inspection and/or rectification is
unnecessary. However, if such marks are found compete the following steps:
- Mark the extents of the control surface travel when driven by the controls.
- Disconnect the control from the control cable, allowing it to swing freely.
- Take care not to deflect the control beyond the point where it can normally be driven by the flight
controls as this will result in a “false positive” - controls are able to move slightly beyond the
normal travel limits but rubbing at these extreme deflections is not dangerous provided there is
no chance of mechanical jamming. Note that for the rudder and elevator the fixed stops fitted at
the rear of the aircraft are located approx 2mm beyond the normal travel limit.
Control at the point of overlap. Measure the
control clearance in this position while pressing
on the control in the middle of the hinge. Repeat
the measurement when unloaded.
Interference here at full forward stick deflection
can cause control travel restriction.
Control at the point of overlap. Measure
the control clearance in this position
while pressing on the control in the
middle of the hinge. Repeat the
measurement when unloaded.
Press against hinge in this
location (within 25mm of
hinge line) & direction