Page 4 - January 2019

Short extensions were added to the outer upper
wing skins. They were also prepared for the
application of two layers of unidirectional fibreglass
(by removing the foam board where the skin would
be bonded to the ribs and spars) and then placed in
the prepared jig to assume the shape of the upper
wing profile. One outer wing panel was finished at
the end of the quarter. Once cured, the profiled
sections will be stored until they can be installed
after the aforementioned inspection. A single jig
The Arrow II Construction Project Update can be used for one side of the wing and then
dissembled and reassembled for the other side. A
The objective during this quarter was to complete a similar process will be used for the upper inner
series of tasks and prepare for the last quarter’s work wing sections – which are much larger and more
which should result in mounting the wing permanently on difficult to handle. During the coming quarter the
the fuselage - drain holes drilled in the wing structure and second outer wing panel and the two large inner
retest with water; finish the underside fuselage surface wing panels should be finished.
work; fit the fuel tanks and spars with support brackets
and test connect the fuel tanks into the wing structure;
complete the fabrication and installation of the fuselage
engine mounts; finish fitting the cockpit floor boards; fit
and attach the battery and equipment stowage hatch
cover; create the jig for preparing the outer upper wing
skins for eventual mounting
Wing Structure:
We are still on target for the wings to be completed to
inspection level and re-attached to the fuselage by the
end of 2018, early 2019. The next inspection will take
place at a much later time after all the wing’s internal
fittings are in place. Only then will the upper wing skins
be bonded in place. The outer wing skin extension being bonded
The trailing edge of the wings were marked and trimmed to the main part of the wing skin
to their final length in order to facilitate the upper wing
skin jig parts being test fitted against the ribs. Any high
points of the ribs were then to be machined down
providing an exact fit.

The upper outer wing skin with fibreglass layers
curing on the jig
The trailing edge of the wing trimmed to final length