Assembly Manual for Junkers Ju 88
Copyright 2007 Thomas A. Jacoby and WarbirdKits.com
10
Parts Layout
1/16” Balsa
Page 1: ...oby and WarbirdKits com Junkers Ju 88 Junkers Ju 88 Junkers Ju 88 Junkers Ju 88 Manual Version 1 2 13 March 2008 Specifications Wingspan 49 75 inches Area 339 square inches Length 36 12 inches Power 2x BP21 Brushless 2x Speed 400 ...
Page 2: ... is tape them together on the good side Use low tack painter s tape so that it releases easily later on Then bend the joints open apply a thread of aliphatic resin in the groove then close the joints Lay a sheet of wax paper on a flat surface lay the glued skin on it cover with another sheet of wax paper and weight with heavy books As you glue each skin add it to the stack making sure you put a sh...
Page 3: ...ing to the aileron spar Fit and glue leading edge brace W17 in place Glue the 1 16 plywood aileron hatch base in place Sand a taper into the trailing edge of the wing skin so that the skin is 1 32 thick at the trailing edge Repeat steps 3 thru 13 for the right wing NOTE You may wish to apply the top skins to the wing before joining the panels If you do remember to pull the motor and servo wiring t...
Page 4: ...heir use on either the right or left nacelle Decide now whether you will use a Speed 400 motor or an outrunner motor to power your Ju 88 model If you decide to use a Speed 400 or brushless inrunner motor you will use the 1 16 balsa firewalls N1 and two 1 4 square hardwood motor mounts If using an outrunner brushless motor laminate the 1 16 ply firewalls N1 to the front of the balsa firewalls using...
Page 5: ...N1 If using Speed 400 motors glue the two 1 4 square hardwood motor mounts in place Note you can also use these motor mounts to strengthen the firewalls for brushless motors Glue the upper portions of N1 N2 and N3 to the nacelle bottom Add a 1 8 square balsa stringer between N1 and N3 Sheet the upper portion of the nacelle from N1 to N3 with 1 16 balsa Cover the nacelle as desired We suggest using...
Page 6: ...s f Pin tape or weight the cowl mount in place until the epoxy sets g Remove the cowl mount from the firewall Glue the rear 1 16 ply mount C3 the five 1 4 balsa rings C2 and the 1 8 balsa ring C1 together in the order shown above Use 1 16 wood dowels cocktail skewer or toothpick to hold parts in alignment The dowels should not extend through the 1 8 balsa ring Sand the assembled cowl to shape You ...
Page 7: ...gle stock to the lower edge of the fuselage In order to bend the triangle stock to match the fuselage outline make shallow razor saw kerfs in the stock between F2 and F3 and between F7 and F9 The kerfs should be spaced about 1 2 apart and about half the depth of the triangle stock NOTE Formers F3 F3A F4 F5 F5A F6 and F6a must be perpendicular to the fuselage Trial fit former F3 Bevel the upper edg...
Page 8: ...A You can use dowels and magnets to hold the nose window assembly in place Cut out the lower fuselage at wing saddle Cut between F3 and F3A and between F6 and F6A 20 Fit the wing in place and drill for the mounting bolt Glue the lower fuselage cutout to the wing Cut out a hole for access to the mounting bolt Install the wing mounting bolt Assemble the battery tray Glue a wide strip of 1 16 balsa t...
Page 9: ... of markings on your model Seal the decals with several thin coats of Krylon Crystal Clear spray varnish Make sure you thoroughly cover the ink this will prevent smears and stains during everyday handling Make sure the surface where the decal is to be applied is smooth and glossy Matte surfaces will permit tiny air bubbles to be trapped between the surface and the decal thus spoiling the decal Cut...
Page 10: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 10 Parts Layout 1 16 Balsa ...
Page 11: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 11 ...
Page 12: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 12 3 32 Balsa ...
Page 13: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 13 ...
Page 14: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 14 1 8 Balsa ...
Page 15: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 15 3 16 Balsa Battery Tray ...
Page 16: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 16 1 4 Balsa Gondola Parts ...
Page 17: ...Assembly Manual for Junkers Ju 88 Copyright 2007 Thomas A Jacoby and WarbirdKits com 17 1 16 Plywood Servo Hatches Optional Firewalls Spinner Backplates ...
