Estes 2188 – Canadian Arrow - Manual (Page 4)

5.
ATTACH LAUNCH LUG (CONT.)
D. Apply glue to Launch Lug, attach on “LL” line as shown.
Be sure to center Launch Lugs on “LL” line so that they
are in alignment with each other. Let dry completely.
6.
PREPARE FINS
A. Using fine sandpaper,
sand both sides of laser
cut Fin Sheet.
B. Using a modeling knife,
carefully remove Fins.
C. Stack Fins and sand
edges square. D. Sand leading edge of Fins to
a slightly round shape. Keep
other edges square.
LEADING EDGE
ROOT EDGES
TRAILING
EDGE
7.
INSTALL FINS
A. Test fit Fins in Slots. B. Sand Fins as needed for a good
fit. Do not sand too much off. Test
fit again. Repeat as needed.
ROOT EDGES TOUCH OUTSIDE
SURFACE OF TAIL CONE
CUT AWAY
VIEW
ROOT EDGE TABS TOUCH ENGINE TUBE
C. Apply glue to Fin tabs and push into slots
until Fin is seated flush to Tail Cone.
Repeat for remaining Fins. Let dry.
D. Stand rocket upright as shown, until
glue dries completely. E. Apply tube type plastic cement fillets to Fin/Tail Cone joints. Smooth out with finger.
Continue until all four Fins are complete. Let dry completely.
90
° 90
°
90
°
90
°
REAR VIEW
CHECK ALIGNMENT
OF FINS
NOTE: FINS MUST
BE ATTACHED
CORRECTLY FOR
STABLE FLIGHT
5
4.
INSTALL ENGINE MOUNT AND TAIL CONE
A. Apply glue inside Body Tube at
1 1/2” (3.8 cm). C. After Engine Mount assembly has
dried, apply a glue fillet around Ring
and Body Tube joint. Let dry.
E. Using a scrap piece of balsa, apply a fillet of tube type plastic
cement to the inside Ring/Tail Cone joint. Let dry completely.
5.
ATTACH LAUNCH LUG
A. Place a pencil mark on the body tube
in line with the Engine Hook. B. Using a door jamb, extend the mark
the entire length of Body Tube.
1”
(25 mm)
1”
(25 mm)
C. Cut Launch Lug into two equal parts.
DOOR
FRAME
TOP VIEW
DRAW LAUNCH LUG LINE “LL”
FULL LENGTH OF BODY TUBE.
LL
4
B. Use the Tail Cone to insert and position the
Engine Mount assembly to correct position.
Remove Tail Cone immediately. Let dry.
D. Apply tube type plastic cement to the inside edge of Body
Tube and around Centering Ring edge. Slide Tail Cone
into Body Tube. Turn Tail Cone to position Engine Hook
between Fin Slots.
ENGINE HOOK
FIN SLOT
SIGHT UP FROM
ENGINE HOOK - MARK
THE BODY TUBE.
DO NOT CEMENT
TAIL CONE YET!
PUSH TAIL CONE
ALL THE WAY IN
1 1/2”
(3.8 cm
)
1 1/2”
(3.8 cm
)
REAR VIEW
FIN SLOT
ENGINE HOOK
LL
E. Apply glue fillets to each side of Launch Lug, smooth out with
finger. Let dry completely.
ROUNDED