Bailey Moyes 912 Dragonfly Maintenance Manual Download

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Section 17

Maintenance & Inspection

Dragonfly 582/912

WING BATTENS AND SAILS

STEP

INSTRUCTIONS

for Assembly, for Disassembly reverse the order!

PART NO.

STAGE CERT.

Remove tape holding trailing edge in place. Unfold sail

wing port

and sail

wing starboard

and lay leading edge mylar flat on ground.  Using scissors inside of sail cut the upper portion of
the batten pockets 5 1/4” fwd of the mylar edge.  This is the side away from the zippers.  Slide
wing frame carefully into sail.  Proceed slowly. If fabric snags, do not attempt to force it.  Find
what fabric is caught on and free it before continuing. Rotate sail to bottom side to turn inside
seam to bottom.  Return outside seam to centre of aft trailing edge.  Turn inside seam of wingtip
to bottom side before pulling sail tight.   Put a pencil mark on wing spar leading edge 4” from
inboard end.  Put a pencil mark on top and bottom of wing spar trailing edge 4” from inboard
end.  Put 1/4” rod or screwdriver through inboard hole of wing spar leading edge.  Put used rivet
shank through end of pull loop, not through grommet (if loop is sewn all the way to the end, cut
threads).  Make a loop of cord.  Place around rivet shank, over top of 1/4” rod; insert another
1/4” rod through loop and crank to pull sail to inboard. Crank until inboard edge of sail touches
pencil marks (make sure wingtip inside seam is still turned to bottom side).  Centre grommet on
leading edge.  Drill 5/32” hole in wing spar leading edge through grommet.

DFR 001
DFR 002

Screw cs

10 x 3/4”,

grommet (pull loop), wing spar leading edge.

Tight.

Remove cord and rivet shank. Place 1/4”

rod or screwdriver diagonally into wing spar trailing edge so it catches against interior bushing.
Put used rivet shank through pull loop as in previous step.  Wrap cord around rod and tighten
until fabric reaches pencil mark. Centre grommet on top of wing spar trailing edge.  Drill 5/32”
hole in wing spar trailing edge through grommet.

DFT 506

Screw cs

10 x 3/4”, grommet (pull loop), wing spar trailing edge.

Tight.

Repeat

cranking process for

Screw cs

10 x 3/4”, grommet (pull loop), wing spar trailing edge.

Tight.

< Probe

< Claw

100 hr

Insert

batten end upper fwd

into fwd end of

batten upper.

Stand wing on leading edge and secure. Starting at wingtip, insert batten through slot on
bottom side of wing and into pocket on top side interior (slots may need to be cut or enlarged to
get battens in. Most pockets may be reached through the zippers so you may use free hand to
help insert batten). Push batten approx 3/4 of way in. Insert

batten end aft

in aft end of batten. Continue pushing until batten just exits fwd end of pocket. Remove

batten

end upper fwd

and replace with

batten end fwd.

Push aluminium piece over leading edge spar.  Push batten down until it stops.  Do not pop into
place yet.  Repeat process, moving inboard (third batten from tip is the most difficult to access.
Use needle-nosed pliers to remove tip and insert batten end fwd, a length of wood or tubing
may be used to push aluminium piece over spar). Return to wingtip.  Pop batten into place (it
takes a bit of force to pop batten.  Place end of screwdriver (batten tool) in middle of batten end
aft.  Press down and in, being very careful not to let screwdriver slip off or sail damage may
occur).  Continue process, working inboard.  Starting at wingtip, insert

batten lower

through slot on bottom side of wing and into pocket on bottom sail interior.  Push batten in 3/4 of
the way.  Insert batten end aft in aft batten end.  Push in until batten stops.   Do not pop into
place yet.  Continue working inboard.  Return to wingtip.  Push batten down into slot.  Reach in
through zipper or slot and rotate batten end aft 180°.  Insert screwdriver into slot and push
batten end fwd to one side.  Pop lower batten into place.  Continue working inboard. Insert
batten end aft into

( Can come loose or fall out ) wing tip supp.

Insert wing tip supp through outboard zipper. Put end of wing tip supp against high point of
outboard batten and batten end aft against outboard comp strut (wing tip supp can be
repositioned until most wrinkles disappear from wingtip fabric).

DFP 023>
DFF 003

DFP 046

DFP 045>

DFF 004

DFF 012

(1)

Recommended Special Tools:

Batten Tool see 1.1.12 Special Tools.

(2)

The parts needed to perform the task:

Replace worn/damaged parts as needed, listed above. Max. Wear (defined 1.1.8.1)

(3)

Type of maintenance:

Inspection=Line & Replacement=Heavy

(when it involves replacement of structural components.)

(4)

Certification needed to accomplish the task:

Line=LSRI Inspection or above, Heavy=LSRM Maintenance or above.

see:

3 Level of Certification in this manual

(5)

Detailed instructions and diagrams as needed to perform the task, listed above and adjacent page.

Every Annual or 100 Hrs., Inspect for Cracks, Corrosion, Elongation of holes & Fasteners for Wear & Security.

See: 1.3.5 Fabric Coverings: For more inspection and testing information on fabric coverings.

(6)

Method to test/inspect to verify the task was accomplished properly.

Insure that all procedures were followed correctly

and there is proper non-binding movement to moving parts and that fasteners were tightened as instructed. When flight
controls are involved, assure that they are operating properly.

Section 17 Wing Battens & Sails

Section 17