beautypg.com

Engine installation – Great Planes Fokker Dr-1 60 ARF - GPMA1380 User Manual

Page 17

background image

7. Fold a piece of masking tape over the end of the string

and draw an arrow onto it. Slide the tape along the string
and align the arrow with one end of the stab. Swing the
string over to the same position on the other end of the stab.
While keeping the stab centered from side to side, adjust the
stab and slide the tape along the string until the arrow aligns
with both sides. Be certain the stab remains centered from
side to side during this process. You may have to trim the
recessed cut out at the bottom of the stab to make it fit.

8. Once the stab fits well, mix some 30 minute epoxy and

glue the stab in place. Make sure to check its alignment
again before the epoxy cures. Wipe off the excess epoxy.

9. Install the CA hinges again on the elevators and stab

and glue them in place with six drops of thin CA on each side.

10. Install two CA hinges into the rudder and aft fuse and

glue them in place with six drops of thin CA on each side.
Make sure the bottom of the rudder is aligned with the

bottom of the fuse. Also, there should be a 1/8" [3mm] gap
between the top of the stab and the bottom of the counter-
balanced section of the rudder. The rudder needs to be
glued in vertically. Use a builder's square to make sure it is.
Modify the fuselage's hinge slots as necessary.

1. Remove the wings from the airplane. Cut the engine

mount template from page 35. Use spray adhesive or tape
to temporarily attach the template to the firewall. Align the
template using the vertical and horizontal lines of the
firewall. Note that the engine mount should be positioned at
different angles depending on the engine type and muffler
combination being used. The installation shown in the
manual is for a 4-stroke engine.

2. Use a small punch or a wire sharpened on one end to

transfer the engine bolt holes to the firewall by making
dimples in the wood. Remove the template.

3. Drill 7/32" [5.5mm] holes through the firewall at the marks.

Mount the engine mount to the firewall with four 8-32 x 1"
[25mm] socket head cap screws, four #8 flat washers, four #8
lock washers and four 8-32 blind nuts, but do not fully tighten
the bolts. Place the engine on the mount and adjust the width
of the mount to fit the engine. Center the molded-in “tick” marks
on the engine mount and tighten the mounting bolts. It would be
a good idea to use some Great Planes Pro Thread Locking
Compound on the engine mount bolts.

ENGINE INSTALLATION

17