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Page 14 

www.oldschoolmodels.com 

Construction Manual

German 

Sunday Fighter

Heinschmitt

run between the H1 pieces. 

Glue the top three in 

position, then after the glue 

has cured, remove the hatch 

and glue in the bottom two 

to complete the framing.

Step 101 - Fuselage Assembly (fuse hatch sheeting)

Now use some 1/16th 

sheeting to sheet the 

hatch, using the same 

techniques as you did 

when sheeting the top of 

the fuselage a few steps 

back.

When sheeted, sand the 

front and rear edges and 

test-fit into the fuselage 

to guarantee a good fit.

Step 102 - Fuselage Assembly (magnets)

Locate the eight magnets from 

the hardware bag. These are now 

installed into the pre-cut circles on 

both sides of the hatch, and into 

the pre-cut circles into the formers 

in the hatch area.

Make sure they are pushed in so 

they are flush with the surfaces. 

A touch of thin CA will help hold 

them in place.

And pay attention to their polarity so they attract, not repel.

Step 103 - Fuselage Assembly (bottom sheeting)

Using pieces of 1/16” sheeting, 

it’s now time to sheet the bottom 

of the fuselage. It will take 

several pieces to do this.

Use the same edge-joining 

technique that use used when 

forming the sheeting for the 

center of the wings.

The sheeting should run from the 

front of TW1/TW2 assembly to the rear edge of the wing saddle.

When finished, trim and sand the edges to they flow smoothly into 

the fuselage sides.

Step 104 - Fuselage Assembly (LG2 & LG4)

Locate LG2 and LG4 from LP2.

These are glued to LG1 and 

LG3 on the underside of the 

fuselage (installed earlier). 

They will be flush with the 

fuselage sides and shown here.

Step 105 - Fuselage Assembly (LG5)

Locate LG5 from LP3.

This forms the floor, 

underneath the fuselage 

tray. Note the engraved 

circle designating the front, 

starboard corner.

Now you have an option 

here. You can either glue 

this in place now, or do what 

we’ve done and rely on the 

landing gear screws to hold 

it in position which gives you access to this area later on down the 

road. (We used this option to allow us to install and have access to 

the receiver battery in this area when using glow power. But with 

electric power, you’ll likely not use this area at all, so gluing LP5 in 

place is fine. Again, your choice.

Step 106 - Fuselage Assembly (TD2 & TD3)

Locate TD2 and TD3 from 

BP8.

These are both glued into 

the cockpit area. TD2 is 

the “instrument panel” and 

glued to the face of TD1.

TD3 is glued to the face of 

TD4 (shown here) forming 

the “headrest”).

When properly positioned, 

both of these pieces will rest 

on the 1/8” strip on the cockpit sides, leaving a 1/16” gap around 

the outside edge - refer to the photo.

Step 107 - Fuselage Assembly (cockpit sheeting)

Using 1/16” balsa sheet, 

you’ll now cut and form 

the pieces to dress-up the 

cockpit area.

You can choose to 

completely cover the 

cockpit, then cutout the 

opening, or make the 

opening cuts first, then 

install the pieces, as we’ve 

done here.

This is done in a similar 

manner to how you sheeted 

the top surfaces in previous 

steps - one half at a time, 

using Windex® to help 

bend the balsa as needed.

The sheets will rest on the 

TD two pieces installed in 

the previous step to form a smooth surface with the other sheeting.

Step 108 - Fuselage Assembly (F1)

Locate F1 from LP3. Note It has an etched guide to help in the next 

steps. This surface should face forward when installing.

Mix up a bit of epoxy and glue F1 to the face of F2, making sure it 

is properly aligned. Clamp this in place to until the glue has cured.

Summary of Contents for Heinschmitt German Sunday Fighter

Page 1: ...ghout the building process You must correctly install all R C and other components so that the model operates correctly on the ground and in the air Installation shown in the manual is a suggestion Yo...

Page 2: ...Cut 1 16 x 11 x 3 ply sheet 2 BP1 Laser Cut 1 8 x 4 x 24 balsa sheet 1 BP2 Laser Cut 1 8 x 4 x 24 balsa sheet 2 BP3 Laser Cut 3 32 x 4 x 24 balsa sheet 2 BP4 Laser Cut 3 32 x 4 x 24 balsa sheet 1 BP5...

Page 3: ...d with the fit then and only then glue the parts in position IT IS VERY IMPORTANT THAT YOU ASSEMBLE THIS KIT IN THE ORDER DESCRIBED SKIPPING FORWARD IN THE STEPS COULD LEAVE YOU WITHOUT THE PROPER LEN...

Page 4: ...n the Sunday Flyer s top port left wing Step 1 Alignment triangles Pre cut into LP3 is a triangle that can be used to vertically align any of the parts in the construction of your Sunday Fighter LP3 a...

Page 5: ...is in place making sure it is securely glued to the front of each rib and that each rib is properly aligned Using a long straight edge can help holding everything in place firmly against the building...

Page 6: ...uncut 1 16 balsa sheets and extra sheeting on the BP9 sheets These are used when sheeting the center section of the wings as well as a few points on the fuselage Carefully measure and cut a few piece...

Page 7: ...sh the two dowels halfway into the holes in CM2 Now note the curvature of CM2 as the more curved surface will be oriented downward Carefully push the two dowels in the CM2 assembly into the pre cut ho...

Page 8: ...ch but don t glue it to the hatch Set the bottom wing half aside and begin work the opposite half of the bottom wing Follow steps 34 through 44 to complete the other wing half Once finished then move...

Page 9: ...halves Test fit the wing halves together one last time and sand as necessary for a good fit After test fitting join the top wing halves permanently with a bit more 30 minute epoxy Remove the dihedral...

Page 10: ...ure cut and glue in center bracing of the rudder Check your scrap pile using any possible shorter lengths first before reverting to longer uncut lengths Remove the rudder from the board then make a no...

Page 11: ...s a small circle that designates the front starboard side Pay attention to the orientation and make sure all tabs are fully seated in their matching pre cut slots while gluing Step 77 Fuselage Assembl...

Page 12: ...deck They are fitted in place in numerical order Note to help in fitting them in place the side to side fit is intentionally large sloppy This allows you to fit in one side then gives you the clearanc...

Page 13: ...and horizontal tapers into a point When you ve made matching left and right fillets glue them in place Step 96 Fuselage Assembly elevator rudder pushrods Before the bottom of the fuselage is sheeted n...

Page 14: ...y LG5 Locate LG5 from LP3 This forms the floor underneath the fuselage tray Note the engraved circle designating the front starboard corner Now you have an option here You can either glue this in plac...

Page 15: ...top using a bit more epoxy again clamping weighing it down as the glue cures These next steps are optional If you prefer not to form the top of cowl area it s up to you If you re mounting a glow engi...

Page 16: ...h all of the WH4 WH5 s installed in the fuselage Use caution to make sure the wing does not move until both holes are drilled When drilling take your time and make sure the drill is held so the bit is...

Page 17: ...have the option to use ailerons on both upper and lower wings If you choose lower ailerons only you ll need to glue one AIL1 strip to the trailing edge of the top wing as shown on each side The flat...

Page 18: ...mounted in the tank battery compartment The magnetic hatch is quickly released to get to them Power system Installing your power system of choice is up next We ll show photos for regarding electric a...

Page 19: ...Use the included 1 8 i d wheel collars to hold each wheel not included on the axles For a maintenance free installation file a small flat on the axle where the set screw of the wheel collar touches Al...

Page 20: ...ntenna collapsed Turn on the radio in your airplane but do not attach the arming switch With your airplane on the ground you should be able to walk 30 paces away from your airplane and still have comp...

Page 21: ...Construction Manual www oldschoolmodels com Page 21 GermanSunday Fighter Heinschmitt Appendix A...

Page 22: ...Page 22 www oldschoolmodels com Construction Manual GermanSunday Fighter Heinschmitt Appendix A...

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