12
Remove the 4/40 bolts from the cowl mounting locations and position the
cowl with the card stock paper overlapping the cowl.
Make a 3-½ inch circle on some scrap1/8
th
inch balsa using your spinners
back plate as a template. Drill a hole on the center for your propeller shaft.
Tack CA the balsa circle to your spinners back
plate and mount it to your engine and tighten it
down. You may need to mount your propeller
to accomplish this.
Position the front of cowling against the back of
the spinner ensuring proper alignment. Once
satisfied with the fit and its lined up, mark the
cowl mount locations and drill out the holes for
your 4/40 bolts.
Remove the card stock strips from the fuselage
and bolt the cowl in place.
Now we are ready to do some fine trimming. We will want to cut at least an extra ½ inch cut around any of the
engine components that protrude. Mark any additional areas that may require trimming to include if necessary,
the spark plug. We also want to make sure we have at least twice the area of the cowl opening open on the
bottom to allow for proper engine cooling as well.
Remove the cowling and cut out the remaining areas to be trimmed.
Chapter 7
Control Surface Installation
Place an “
×
” to ensure task completion:
What you will need in this chapter:
One pair of wing panels with ailerons
One pair of horizontal stabs with elevators
All of the hinge point hinges provided
Not Provided:
30 to 45 minute epoxy
A drill
Center punch
Two cycle oil
½ inch low tack masking tape
