Top Flite Elder 40 User Manual

Page 6

1/4" SQ. SPRUCE LONGERONS

CLEAR PLASTIC

SHEET

ALL UPRIGHTS 1/4" SQ. SPRUCE

AFT OF THIS LINE

IN THE FIRST STEP, THE FUSELAGE SIDES ARE ASSEMBLED DIRECTLY ON

FUSELAGE PLAN TO KEEP F R A M E FROM BEING GLUED TO PLAN, USE
MONOKOTE BACKING OR CLEAR P L A S T I C FOOD W R A P W H E N FIRST SIDE
HAS BEEN A S S E M B L E D , A G A I N USE CLEAR P L A S T I C SHEET TO KEEP
S E C O N D SIDE FROM A D H E R I N G TO THE FIRST SIDE FRAME

ALL UPRIGHTS 1/4" X 1/2" BALSA

F O R W A R D OF THIS LINE

THE FIRST PHASE OF SHEETING IS

SHOWN IN STEP 3--(1/8" SHEET, APPLIED

WITH G R A I N A C R O S S THE FUSELAGE)

STEP 2 - JOIN BOTH SIDES WITH 1/4"X 1/2" BALSA
C R O S S PIECES AS S H O W N A L S O GLUE FIREWALL

(1/4" PLY-3-3/8" X 3 - 5 / 8 " ) IN P L A C E

STEP 3 - A D D THREE 1/4" PLY (1" X 3 - 5 / 8 " ) CROSS PIECES AS
SHOWN ( T W O A R E L G M O U N T S , ONE AT F U S E L A G E T O P ) THEN
BEVEL I N N E R R E A R ENDS OF F R A M E S A N D GLUE TOGETHER.
CUT R E M A I N I N G C R O S S PIECES TO SIZE (BEVEL ENDS FOR AN

EXACT FIT) AND GLUE IN PLACE.

1/4" PLY, 1" X 3-5/8"

IN THIS " F I R S T STEP" SKETCH,
SECOND SIDE HAS BEEN MADE
AND IS SEPARATED FROM
FIRST SIDE BY PLASTIC

SHEET.

FIREWALL

9. Locate the 1/4" ply firewall. You must now use the

plans to locate the position of your motor mount on

the firewall. This mount is installed inverted. Mark
the location of the four mounting holes onto the
firewall. Use a drill to drill the holes through the

firewall with a 1/8" dia. bit. Epoxy the four 4-40 blind

mounting nuts in place to the back of the firewall in-

to the holes just drilled—keeping adhesive out of
the threads. Test mount the motor mount with the
4-40 x 7/8" bolts provided. Remove the mount and
epoxy the firewall to the front of the fuselage frame.
Align it carefully and allow to cure.