Manzano Laser Works deHavilland DHC-1 Chipmunk Скачать руководство пользователя страница 21

10.

Assembly of the rear fuselage begins by gluing the 1/8" balsa 

vertical keel parts together.

The horizontal 1/8" balsa keel pieces are glued in place after the 

vertical pieces are glued together. The tabs fit in the vertical keel 

slots. 

Glue the rear fuselage formers to the keel parts. Use the slots in 

the keel parts to locate each former segment. The rear former 13 

is not installed at this time. 

11.

12.

13.

14.

15.

16.

17.

18.

Bend the tail wheel leg using 3/32" piano wire. Be sure to place 

the length of 1/8" brass tubing on the leg above the 90 degree 

bend before bending the pushrod tiller arm. Make up the 

pushrod link end from 1/8" brass tubing and solder it to the tiller 

arm. Bind the brass tubing on the leg to the 1/8" plywood center 

tail wheel support piece. Glue the 1/32" plywood face support 

face pieces to the center support piece. Be careful not to get any 

glue in the pivot tube.

Glue part KE to the bottom of the horizontal keel pieces at the rear. 

Use the slot formed by the horizontal keel pieces to locate KE. 

Glue the tail wheel assembly to the lower vertical keel. The brass 

tube fits in the slot formed by the rear of the vertical keel and part 

KE. The tail wheel leg should rotate freely without any interference 

from the structure.

Bend the rudder control horn using 3/32" piano wire. Slide a 1 1/8" 

length of 1/8" brass tubing on the wire after bending the push rod 

link end and before bending the rudder tiller arm. Slide the 1/8" 

plywood rudder horn support pieces on to the assembly as shown. 

DO NOT APPLY ANY GLUE. These parts can slide freely for now.

Dry fit the rudder horn assembly and stab saddles to the rear 

fuselage keel assembly. Also dry fit former 13 to help place the 

stab saddles. DO NOT GLUE former 13. Adjust the vertical 

position of the rudder horn brass tubing so the pushrod attachment 

end is far enough below the horizontal keel pieces to clear a 

clevis. When the stab saddles and rudder horn assembly are in 

place glue those parts being careful not to glue former 13. Remove 

former 13. Glue strips of 1/8" square balsa to the sides of the tail 

wheel support assembly with the edge lined up with the bottom of 

the vertical keel.

Make up and install the link between the rudder horn and tail 

wheel. It is suggested that one threaded and one solder celvis be 

used for the link ends.  

Glue the rear fuselage structure to the forward section. The slots in 

rear section former 8B fit over the tabs extending from forward 

section former 8A.

8B

9

10

11

12

1/8" Brass tubing

KE

8A

8B

Содержание deHavilland DHC-1 Chipmunk

Страница 1: ...deHavilland DHC 1 Chipmunk Assembly Guide Manzano Laser Works ...

Страница 2: ...s follows Sheet 1 Fuselage Sheet 2 Wing Stab Fin Rudder Sheet 3 Sheeting and part layouts not included on the other plan sheets Materials used in this model include balsa liteply plywood brass tubing and piano wire A formed plastic canopy is also used Most of the wood and the formed canopy is supplied with the kit The builder supplies 3 16 and 1 8 square balsa strip stock piano wire brass tubing a...

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Страница 11: ...TAIL SURFACES ASSEMBLY ...

Страница 12: ...de of the spar can now be sanded to shape Refer to the plan cross section drawings for the shape of the spar back face The elevators are assembled using the same procedure as the stab Dry fit the r bs to the spars and then place on the plan The plywood side of the spars face the ribs Add the trailing edge pieces so the rear of each rib engages the notches When everything is lined up glue all of th...

Страница 13: ... the two halves and the key Sand a bevel on the forward face of the rear half of R7 to match the plan profile Glue the halves together using the balsa key to align and strengthen the joint Sand the forward half of R7 to match the joint angle Install R7 Dry fit the rudder tip parts R1 and R2 When satisfied with the fit glue the joint Place the rudder tip on the assembly R2 should be centered on R3 ...

Страница 14: ...WING ASSEMBLY ...

Страница 15: ...e sure all of the ribs are touching the building surface and the 1 8 square strip A few straight pins can help make sure everything stays in the proper place Apply thin CA to all of the joints Make up four paper tubes that are 1 2 in diameter Allow for a bit of overlap when rolling the tubes Two of the tubes need to be 20 long and the other two 7 long Slide one of the long tubes into the forward s...

Страница 16: ...nd for this step Place the wing panel on the building board over the plan when gluing the top leading edge sheeting in place This will help lock in the tip washout Remove the wing panel from the building surface Cut and fit the bottom leading edge sheeting Glue it in place Check to be sure the tip washout has not been altered before the glue dries Glue the wing bolt reinforcement 1 4 balsa laminat...

Страница 17: ...ofile shown by the plan wing cross sections Build the second wing panel following steps 1 through 18 of this assembly guide section The two wing panels are joined using two 1 8 plywood doublers Use epoxy to join the wing panels Glue the center wing dowel to one wing panel before joining both panels With one wing panel laying flat on the building surface the opposite tip should be 6 above the surfa...

Страница 18: ... trays using four wood screws in the corners of the trays 28 29 Bend the landing gear legs using 1 8 diamater piano wire Place the landing gear legs into the slots of the landing gear mounting blocks Place a plywood retaining lug in the pockets of the mount block Mark the location of the retaining screws After all of the screw locations have been marked dirll pilot holes for the screws Run screws ...

Страница 19: ...FUSELAGE ASSEMBLY ...

Страница 20: ...t is flush with the top of the notches in the wing saddle area next to side formers 4 and 7 The parts should be on the wing saddle side of each side former 4S 7S Assemble the two sets of wing saddle parts WS1 through WS3 The wing saddles are then glued to the fuselage internal box and the bottom of the side formers The tabs on the wing saddles fit in the notches of the liteply box sides The bottom...

Страница 21: ...nd part KE The tail wheel leg should rotate freely without any interference from the structure Bend the rudder control horn using 3 32 piano wire Slide a 1 1 8 length of 1 8 brass tubing on the wire after bending the push rod link end and before bending the rudder tiller arm Slide the 1 8 plywood rudder horn support pieces on to the assembly as shown DO NOT APPLY ANY GLUE These parts can slide fre...

Страница 22: ... will be made later Install 3 16 square balsa stringers on the rear fuselage section using the notches in the formers The top stringer will need to be tapered at the rear The taper should start from about 5 1 2 from the rear end of the top stringers The push rod supports are made from two pieces of 1 8 balsa To accommodate the variations in individual builds the supports are trimmed to fit each lo...

Страница 23: ... are four pairs of 1 4 x 1 8 magnets that are used to retain the cowl Install the magnets at this time Glue a magnet in each of the holes in the lower cowl half keel parts Place a magnet on the installed units Mark the outer face of the second set of magnets One at a time remove the second magnet and glue it in the corresponding hole of the upper cowl half The marked face will go toward the inside...

Страница 24: ...FINAL STRUCTURAL ASSEMBLY ...

Страница 25: ...ool used in the previous step Next the stab is installed Before performing that operation connect the elevator control horn to the elevator pushrod clevis Slip one of the balsa stab center section sheeting pieces over the rudder horn Place the stab over the rudder horn on top of the center section sheet Glue the bottom center section sheeting to the stab The tabs on stab ribs S1 align the sheeting...

Страница 26: ...ller laminations together Sand the assembly to match the elevator root rib profile Temporarily fit the elevators to the elevator horn They can be retained with masking tape Glue the elevator filler piece to the fuselage with it centered between the elevators Remove the elevator halves 10 The landing gear leg covers are made from three laminations of 1 8 balsa Glue the center pieces to one side of ...

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