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Old School Model Works Heinschmitt German Sunday Fighter Construction Manual

Old School Model Works Heinschmitt German Sunday Fighter Construction Manual

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Specifications: Wingspan: 46.5 in. • Wing Area: 725 sq in.
Airframe Length: 34 in. • Weight: 3.5 - 4 lbs. (ready to fly)
Using the Manual
Be sure to read each step thoroughly before you start
the step. Test-fit the parts together to make sure they
fit properly. If necessary trim to fit.
Beside each step you will notice a check box (or two).
These are so you can keep track of your progress
while building your kit. For steps that have two boxes,
as in the construction of the left and right wing halves,
these steps must be performed two times.
• Your Old School Model Works aircraft should not be
considered a toy, but rather a sophisticated, working
model that functions very much like a full-size airplane.
Because of its performance capabilities, this model, if not
assembled and operated correctly, could possibly cause
injury to yourself or spectators, and damage to property.
• You must assemble this model according to the
instructions. Do not alter or modify this model, as doing
so may result in an unsafe or un-flyable model. In a few
cases the instructions may differ slightly from the photos.
In those instances the written instructions should be
considered as correct.
• You must take time to build straight, true and strong.
• You must use a R/C radio system that is in first-
class condition, a correctly sized power system and
components
(electronics,
throughout 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. You may have to adjust the mounting steps
to accommodate the size of your radio equipment.)
• You must check the operation of the model before every
flight to insure that all equipment is operating and that
the model has remained structurally sound. Be sure to
check clevises or other connectors often and replace
them if they show any signs of wear or fatigue.
• If you are not an experienced pilot or have not flown this
type of model before, we recommend that you get the
batteries,
wheels,
etc.)
assistance of an experienced pilot in your R/C club for
your first flights. If you're not a member of a club, your
local hobby shop has information about clubs in your
area whose membership includes experienced pilots.
• While this kit has been flight tested to exceed normal
use, if this model will be used for extremely high stress
flying, such as racing, or if a power system larger than
one in the recommended range is used, the modeler is
responsible for taking steps to reinforce the high stress
points and/or substituting hardware more suitable for the
increased stress.
Remember: Take your time and follow
the instructions to end up with a well-
built model that is straight and true.
www.oldschoolmodels.com

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Summary of Contents for Old School Model Works Heinschmitt German Sunday Fighter

  • Page 1 • Your Old School Model Works aircraft should not be considered a toy, but rather a sophisticated, working model that functions very much like a full-size airplane.
  • Page 2: Included Items

    WARNING • Inspect your model before every flight to ensure it is airworthy. • Be aware of any other radio frequency user who may present an interference problem. READ THROUGH THIS MANUAL • Always be courteous and respectful of other users in your selected flight area.
  • Page 3 • Pushrods (two 5” for ailerons, two 20” for elevator & rudder, one 10” for throttle if glow/gas powered) A FEW THOUGHTS • Clevises for the pushrods (8 if electric, 10 if glow). BEFORE YOU START. • 2 - 3.5” diameter wheels. We suggest Du-Bro’s # 350V vintage style wheels.
  • Page 4 Online Supplementary Photos Top Step 4 - Wing Assembly (R9 & SW4) We realize that the smaller black-and- Locate one R9 from BP3 and white photos in this manual might not one SW4 from BP9. show some of the steps as clearly as you might want.
  • Page 5 each rib, and that each rib is properly aligned. Step 9 - Top Wing Assembly (R5 & SW2) Using a long straight-edge can help holding Locate one R5 from BP3 and everything in place, firmly against the two SW2’s from BP9. building surface.
  • Page 6 Step 18 - Top Wing Assembly (top, center sheeting) Step 20 - Top Wing Assembly (1/8” dowel pins) Included in your kit are uncut 1/16” balsa sheets and extra sheeting Locate the length of 1/8” dowel. Measure and cut this into on the BP9 sheets.
  • Page 7 Push the two dowels halfway into the holes in CM2. Step 26 - Top Wing Assembly (tab removal) Now note the curvature of CM2 as the more “curved” Now it’s time to remove the tabs from the bottom of the trailing surface will be oriented downward.
  • Page 8 Finish up by cutting the ribs for the dihedral box and adding the One of these strips is glued along the rear of the ribs and butting upper spar. up against the trailing edge strip. Before you glue it in place, you’ll need to cut a notch to fit around Step 35 - Bottom Wing Assembly (WH1) WH2 you just installed.
  • Page 9 Set the top wing aside and then do the same to assemble the Step 45 - Bottom Wing Assembly (R2 cutout) lower wing. Just as you did for the top wing halves, it’s time to mark and cutout the slots in R2 to accept the dihedral braces. These are be This completes assembly of the Sunday Fighter wings.
  • Page 10 Step 58 - Elevator Assembly (E1) Step 66 - Rudder Assembly (bracing) Locate four E1’s from BP1. Two are Using 1/4” square balsa, measure, used to create the outer edge of each cut and glue in center bracing of the elevator half.
  • Page 11 Step 72 - Fuselage Assembly (F5 & TR2) Step 77 - Fuselage Assembly (WH4) Locate F5 from LP3 and TR2 from Locate WH4 from LP2. WH4’s notches fit LP1. into the two pre-cut slots in FS2, just above Carefully slide F5 into the slots the wing saddle cutout.
  • Page 12 Step 82 - Fuselage Assembly (fuse sides) Locate both balsa fuselage sides from back in step 73. These are now glued to the fuselage box as shown here. The former’s extended tabs will help you align these pieces. Make sure they are firmly and completely pushed up against the plywood box sides while the glue cures - no gaps.
  • Page 13 It’ll take a bit of time to cut, trim and sand these so they continue Step 91 - Fuselage Assembly (fin/stab) the turtledeck’s vertical and horizontal tapers into a point. Now locate the vertical fin British version When you’ve made matching left and right fillets, glue them in and stab you constructed shown.
  • Page 14 run between the H1 pieces. Step 105 - Fuselage Assembly (LG5) Glue the top three in Locate LG5 from LP3. position, then after the glue This forms floor, has cured, remove the hatch underneath the fuselage and glue in the bottom two tray.
  • Page 15 These next steps are optional. If you prefer not to form the top Step 114 - Fuselage Assembly (top nose sheeting) of cowl area, it’s up to you. If you’re mounting a glow engine, Using 1/16” sheeting, now sheet depending on it’s orientation it could be to your advantage to the top of the cowl area as shown leave this area more open than usual.
  • Page 16 on the wing surface. Step 118 - Fuselage Assembly (center cabanes) Remove the drill, remove the wing and clean up around the new Lastly, each cabane will need a small holes you drilled. Then run a 1/4x20 tap through the WH4/WH5 taper filed/sanded in the outer surface.
  • Page 17 to the trailing edge of the top wing as shown, on each side. The Step 126 - Top wing test fit (center cabanes) flat edge should rest against the wing tip. With the main gear attached, re-attach the bottom wing. Now it’s Make sure these are securely glued and properly aligned along time to test fit the top wing.
  • Page 18 holes where you can snake the outside of the flexible tubing system Glow power of your choice, then continue out through the exit holes pre-cut in Your engine mounts the sides of the fuselage. so the crankshaft is If you choose to use this type of pushrod, make sure you glue positioned over the this outer sleeve to each of these center supports.
  • Page 19 Note that Callie Graphics is not affiliated with Old School Model balance is achieved. Stick-on weights are available at your local Works, nor does Old School Model Works generate any income hobby store and work well for this purpose. from this partnership.
  • Page 20 Rudder 1” left/right (15% expo) In that Old School Model Works has no control over the final (Expert tip: Once the control throws have been set, cut a few pieces of assembly or material used for the final assembly, no liability shall be...
  • Page 21 Heinschmitt Appendix A Construction Manual www.oldschoolmodels.com Page 21 Ger man Sunday Fighter...
  • Page 22 Heinschmitt Page 22 www.oldschoolmodels.com Construction Manual Appendix A Ger man Sunday Fighter...