Aircraft Service Manual
Jabiru Aircraft
Pty Ltd
JTM001-1
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
REVISION
1
Dated: Nov 2011
Issued By: SW
Page: 70 of 233
7
Wings & Empennage
7.1
GENERAL
Jabiru Aircraft have a design philosophy and so many parts are interchangeable. For example, a
J170 wing could be fitted to a J120 airframe without modification while the same wing has virtually all
its component parts in common with the J230 wing.
Accordingly, in this section there is a degree of cross referencing
– i.e. the J120 section refers to the
J160 wing for details of the control system.
However, as there are subtle differences between models care must be taken when ordering parts to
ensure the correct part is specified. Ensure that all orders to Jabiru Aircraft clearly state for which
aircraft model and serial number the part will be used.
Note: wings have a tag located inside the wing root which details the wing serial number and part
number. Jabiru Aircraft may request this information to ensure the correct parts are supplied.
In addition, in some cases parts which look identical are actually designed for different models and
so have significantly different strength. For example the Series 7 wing is outwardly similar to the
Series 13 but while the Series 13 wing is designed for 700kg and a maximum speed in excess of 150
knots, the Series 7 is designed for 450kg and 120 knots.
CAUTION
Always ensure that the correct part is specified when ordering parts. Provide Jabiru with as
much information about the aircraft (model, S/No. etc) as possible.
7.2
J120 WINGS
7.2.1 DESCRIPTION
The J120-C wing is a semi-cantilever, stressed-skin type with a single main spar. The wing is a
moulded structure with solid foam core that is bonded to the fibreglass skin and spar.
The forward wing attachment is an extension of the forward sub-spar. The rear attachment is an
extension of the rear sub-spar (also known as the wing attachment lug or fork). Both wing
attachments are contained in a reinforced Wing End Plug and bond to the wing skins. The Wing End
Plug distributes load from the attachments to the main spar. Both attachments are through stainless
steel threaded bushes bonded into the attachment blocks.
The wing internal structure is sealed and only needs to be accessed for repairs.
The installation of the control surfaces, control cables etc for the J120 wing uses the same parts,
materials and methods as the other models detailed herein. Therefore, for details of these aspects
of the wing assemblies, Refer to Figure 38 & Figure 39 for earlier aircraft and Figure 40, Figure 41 &
Figure 42 for later variants.
7.2.2 REMOVAL
Wing removal is most easily achieved if two persons are available to handle the wing.
1.
Remove wing root fairings.
2.
Remove wing strut fairings
– top and bottom.
3.
Disconnect Pitot tube
– RH wing only.
4.
Unbolt flap control rods
– 1 each wing.
5.
Remove flap from wing so it does not crush the fuselage when lowering down.
6.
Unbolt aileron control cables (2) from rear of control stick horn inside cabin.
7.
Remove pin and clamp block from aileron control cable clamps at rear of seat
– 1 each seat.
8.
With one person supporting wing tip, unbolt top wing strut bolt and lower wing strut to the ground.
9.
Lower wing tip to towards the ground making sure you do not crush the underside of the wing on
the fuselage wing root. Rest the wing tip on a saw-horse or other suitable stand.
10.
Unbolt and remove front wing attachment bolt.
11.
Unbolt and remove rear wing attachment bolt.
