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Optional, Finish off the wing by filling any imperfections or gaps with balsa wood filler or a lightweight spackling
compound then loading a fine grit (400) sand paper on your sanding block and lightly sand smooth the entire
wing. Fill the small seam between the leading edge dowel and wing and the seam at the wing tips, allow to dry,
sand wing to remove excess filler. Remember, your covering job is only as good as your surface preparation!
Covering the model
A complete guide to covering using AeroFILM and AeroFILM Lite is available for download from
www.stevensaero.com Download this document and use it as a guide for covering the SQuiRT. No surprises
here just follow the directions and work slowly remember any imperfections will need to be sanded smooth as
the covering will expose every bump or drip of CA glue.
A template has been provided on the plan sheet for cutting out a wind screen decal. We typically cut this from
black adhesive backed AeroTRIM or AeroFILM.
Final Assembly
For a detailed final assembly guide for the SQuiRT please visit www.stevensaero.com. Remove a small piece
of covering from the center section of the wing assembly to allow access for the servo wires to pass through the
wing.
Temporarily mask the ailerons from the underside of the wing leaving a 1/32” gap between the leading edge of
the aileron and the trailing edge of the wing. Hinge the top side of the ailerons to the wing assembly using clear
scotch tape. Remove the masking tape, flex the aileron up and double with another length of tape along the
underside of the aileron/wing hinge point.
Slot the covering in the ailerons over the laser cut control horn pocket. Install the fiberglass control horns to the
aileron and secure with a few well placed drops of Thin CA glue.
Refer to the plan sheet for the servo horn positioning. Remove the servo horn from the servo; connect to your
radio with the trim tab centered to re-center the servo. Next, re-install your servo horns rotated away from the
aileron hinge point at a 45 degree angle (as detailed on the plan sheet). The angle of the servo horn relative to
the hinge point of the aileron and position of the aileron control horn introduces differential aileron travel. In
other words with the suggested linkage setup you will notice that your ailerons travel further upward then down.
This works to counter adverse yaw due to the extra drag created from the downward traveling aileron. This
differential aileron travel will allow you to make reasonably clean turns without necessitating coordinated rudder
inputs. We suggest you read “The Pilots Guide To Mastering Radio Control Flight” by Scott Stoops (available
from www.stevensaero.com) for a more detailed discussion of adverse yaw. Install your servos (HS-55’s) and
connect the aileron linkage to the servos using the supplied Du-Bro 121 EZ-Links. Refer to the plan sheet as a
guide.
Attach the wing to the fuselage using no more then four #16 rubber bands. For the best crash resistance, do
not cross your rubber bands. Also remember more rubber bands increases the tension on the wing and will
make it more likely to break in a crash. Use fresh rubber bands after a week’s flying.
Test your radio setup for function and proceed on to first flight.