GREAT PLANES Ultra Sport 40 Plus, Instruction Manual

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13. Locate one die-cut 1/8" [3.2mm] lite-ply aileron
servo tray (AST).The tray is not symmetrical because of
the sweep of the main wing spar. Place the aileron servo
tray against the wing main shear web (MSW) and the wing
rib W4. The servo tray will only fit one way, so flip it if you
need to. Once you are satisfied with the fit, mark the top side
of the tray as shown.
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14. Locate two die-cut 1/8" [3.2mm] servo tray supports
(STS). Glue them to ATS as shown in the above image.
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15. Fit the servo tray assembly to the main shear web
(MSW) and W4 as shown. You will need to slightly sand one
of the servo tray supports (STS) to make it fit as shown in
the above image. Once you are satisfied with the fit, glue the
assembly in place with medium CA.
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16. Fixed Tricycle. Locate the die-cut 1/8" [3.2mm]
lite-ply ribs W3-B and W4-B. Glue them to the inner side of
the 3rd bay with epoxy as shown in the plans. Use plenty of
epoxy on this and the following steps.
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17. Fixed Tricycle. Locate one of the 1/2" x 3/4" x
5-1/2" [13mm x 19mm x 140mm] hardwood landing gear
rails. Cut the rail into two pieces, one 4-1/4" [108mm] long
and another 7/8" [22mm] long. Glue them in place as shown
using epoxy.
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18. Fixed Tricycle. Drill a 5/32" [4mm] hole through
the slot on the vertical piece of the landing gear rail into the
horizontal portion of the rail. This is for the landing gear wire.
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