GREAT PLANES Ultra Sport 40 Plus, Instruction Manual, Page: 34 / 62

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50. Glue two pieces of 1/8" x 1/4" [3.2mm x 6.4mm] balsa
stick on top of each other at the center of the top fuselage
as shown.
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51. Cut the 1/2" x 1-3/4" x 11" [13mm x 44mm x 280mm]
balsa fin block into two 5-1/2" [140mm] long pieces. Glue
one block on each side of the balsa stick you glued in the
previous step and to former F6-A. Use epoxy for this step.
Once the glue has cured, sand the blocks to shape as
shown above.
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52. Insert the fin (but do not glue) between the blocks.
Sand where necessary to make the fin fit properly.
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53. Fixed Mains and Tailwheel and Retractable
Mains/Fixed Tailwheel. Temporarily install the tail wheel
assembly into the rudder and fit the rudder to the fin and
fuse. Mark where the slot for the tail wheel assembly nylon
bushing needs to be cut out in the aft fuselage. Cut the
needed slot in the fuselage.
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54. If you decided to not take the fuel tank out in step 42,
you will now need to insert some 1/4" [6.4mm] latex foam
rubber (HCAQ1000) through the hole in former F3-A to hold
the fuel tank in place. If you took the fuel tank out, you will
need to do this when you reinstall it.
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1. Locate the 1/4" x 1/2" x 30" [6.4mm x 13mm x 760mm]
balsa stick that was used to make the fuel tank support. Cut
two pieces the length of the fuselage servo rails and glue
them in place as shown on the plans with epoxy.
Radio Installation
RADIO & ENGINE INSTALLATION
34