background image

                  Construction Manual 

www.oldschoolmodels.com 

Page 3

•  Engine/Motor mount and mounting hardware

•  Receiver - (4 channel minimum)

•  5 standard sized servos (4 if electric)

•  “Y” servo harness and aileron servo wire extensions.

•  Pushrods (two 5” for ailerons, two 30” for elevator & rudder, 

one 12” for throttle if glow/gas powered) 

•  Clevises for the pushrods (8 if electric, 10 if glow). Heavy duty 

4-40 hardware is recommended.

•  2 - 5” diameter wheels

•  1 - tailwheel assembly

• Covering

Additional Required Building Tools and Adhesives

•  Drill & assorted drill bits

•   Hobby knife and new, sharp blades

•   Sandpaper: coarse (80 or 100 grit) & medium (150-200 grit)

•  Pencil or pen

•   Ruler

•   String (18” length)

•   T-Pins

•  Waxed paper

•  Building board

•   6 and 30 minute epoxy

•   Adhesives of your choice. We recommend thin and medium 

CA (cyanoacrylate) viscosities

•   Epoxy brushes and mixing sticks

•   Threadlocking compound

•  Torch or soldering iron, solder and flux

•   Canopy glue

Before Starting Assembly

Closely inspect the supplied laser cut parts for damage. If you find 

any damaged or missing parts, contact us immediately. 

When removing the laser cut parts from their sheets, you’ll notice 

the parts are held in place by several small “tabs”. These tabs 

are uncut pieces of wood and can sometimes make it difficult to 

remove a part. Rather than breaking and/or splintering the wood 

by forcing out the part, we recommend removing any laser cut 

parts from their sheets by using a hobby knife with a new, sharp 

blade. A quick cut of the tab will allow the piece to be removed 

with no damage. Sand any tab remainders flush with the part so 

there will be no problem aligning them later.

It’s best to not remove parts from their sheets until they are needed. 

Refer to Appendix A of this manual as a reference to what all the 

laser cut parts look like and are called.

For each step, we highly recommend that you dry fit the parts in 

each step first. Lightly sand as needed to ensure a good fit. Once 

you’re satisfied with the fit, then and only then, glue the parts in 

position.

IT IS VERY IMPORTANT THAT YOU ASSEMBLE THIS 

ROBINHOOD 80 KIT IN THE ORDER DESCRIBED. SKIPPING 

FORWARD IN THE STEPS COULD LEAVE YOU WITHOUT THE 

PROPER LENGTHS OF WOOD TO FINISH THE KIT.

WE’VE INCLUDED ENOUGH WOOD TO EASILY COMPLETE 

THIS KIT, BUT YOU MUST TAKE CARE TO PROPERLY 

MEASURE AND NOT WASTE WOOD WHEN CUTTING.

Let’s begin construction by working on the right (starboard) 

wing of your Robinhood 80.

Prepare your work area

You’ll need a flat building surface that is a minimum of 40” long. 

Position the starboard wing plan over the surface and tape into 

position. Tear off a length of waxed paper long enough to cover 

the left wing plan and tape that into position, over the plan. 

Step 1 - Struts

This might seem like a strange 

first step in this build, but we ask 

you to do this for a reason. It’s 

to guarantee that you’ll have the 

proper lengths of 3/16 x 3/8” 

basswood.

So, gather four pieces of 3/16” 

x 3/8” and eight 3/16” square 

balsa sticks. Cut a 25-1/4” length 

from each piece and set the short 

pieces aside to use in other steps.

Take one 3/16” x 3/8” basswood piece and lay it on your board. 

Glue one of the 3/16” balsa sticks to each side of the basswood as 

shown here to make one strut assembly.

To aid in keeping these pieces straight, hold the pieces against a 

long straight-edge, such as a metal yard stick, while the glue cures.

Make 4 struts, then set them aside for much later on in the build.

Step 2 - Alignment triangles

Pre-cut into LP7 are two 

triangles, one inside the 

other. These can be used 

to vertically align any of the 

parts in the construction of 

your Robinhood 80. LP7 also 

includes two foot pieces that 

can be used with the triangles 

to hold both triangles vertical 

hands-free.

We recommend using the smaller triangle in the wing construction 

as it’s small enough to fit between the ribs.

Closely inspect the supplied laser cut parts for damage. If you find 

any damaged or missing parts, contact us immediately. 

Online Supplementary Photos

We realize that the smaller black-and-

white photos in this manual might not 

show some of the steps as clearly as 

you might want. So we’ve anticipated 

this and made these photos available 

on our website. You can either scan the 

QR code or type this address into your 

browser:

www.oldschoolmodels.com/mpics/rh80/

Summary of Contents for Robin Hood 80

Page 1: ...wheels etc 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...

Page 2: ...Cut 1 8 x 6 x 24 sheet 1 LP7 Laser Cut 1 8 x 6 x 24 sheet 1 LP8 Laser Cut 1 8 x 6 x 24 sheet 1 LP9 Laser Cut 1 8 x 6 x 24 sheet 1 LP10 Laser Cut 1 8 x 6 x 24 sheet 2 BP1 Laser Cut 1 8 x 4 x 24 sheet...

Page 3: ...THIS ROBINHOOD 80 KIT IN THE ORDER DESCRIBED SKIPPING FORWARD IN THE STEPS COULD LEAVE YOU WITHOUT THE PROPER LENGTHS OF WOOD TO FINISH THE KIT WE VE INCLUDED ENOUGH WOOD TO EASILY COMPLETE THIS KIT...

Page 4: ...pletely slide into the slots in R8 as this will guarantee that R8 is held in vertically When satisfied with the fit glue R8 and WF4 to the bottom spar Step 7 Wing Assembly attach R6 Locate one R6 rib...

Page 5: ...end against using an instant setting glue If you are using CA use a thicker formulation that gives you a bit of working time Measure and cut one of the 3 8 square basswood strips to use as the upper s...

Page 6: ...ailing edge It should be cut so it perfectly fits between the two R5B pieces you installed in the last step It should not be a forced fit that would push the R5B s out of alignment Once cut and positi...

Page 7: ...LP10 R1 is laminated to R2 and the surrounding sheeting which is now hopefully sanded smooth and flat Although C A glue can be used we recommend epoxy for this step You should also have a couple of s...

Page 8: ...ps These will form the upper and lower longerons Measure cut pin and glue into position Note that the top longeron does not completely seat into the gap on top of the fuselage side There needs to be a...

Page 9: ...It could be a good idea to use a few weights to hold the port side securely and firmly in place why the glue cures Step 52 Fuselage Assembly top cross brace Cut the top cross brace from some of the le...

Page 10: ...in position as shown Step 63 Fuselage Assembly F7 cross brace Using 3 16 x 3 8 basswood measure and cut the cross brace to strengthen the top of F7 Glue in position as shown Step 64 creating rear tape...

Page 11: ...brace is exactly centered on the fuselage and completely seated in the slot when gluing in place Use epoxy for this Now measure and cut the cross bracing that goes across the center section There are...

Page 12: ...d properly cut through this thickness so this piece is hand cut and more often than not it will fit as designed However there are times where it might require a little sanding to fit properly After sa...

Page 13: ...ame with the remaining S4 pieces Step 94 Elevator leading edge The two S3 and two S4 assemblies should be pinned in place Measure two lengths of 1 4 x 1 2 balsa to make the leading edges of the stab G...

Page 14: ...n is properly seated measure the angle between the fin and stab If at 90 then it s correct If not reposition as needed Draw a line on the stab where it meets the fuselage then remove the stab fin and...

Page 15: ...use epoxy to secure it in place This fiberglass cloth is not included but should be readily available at your local hobby store Step 118 Aileron servo hatches From leftover 3 16 x 3 8 x 36 basswood st...

Page 16: ...leading edge of the ailerons Do this for both wing halves Step 122 Airframe Assembly sanding Now take the time to go over the entire airframe and give it a good final sanding Make sure everything is...

Page 17: ...ents you removed earlier in this step Logos numbers etc If you want to use graphics similar to the ones we used Old School Model Works has teamed up with Callie Graphics as a supplier for pre cut viny...

Page 18: ...h the recommended throws Test run the engine and make sure it transitions smoothly from idle to full throttle and back Also ensure the engine is tuned according to the manufacturer s instructions and...

Page 19: ...Construction Manual www oldschoolmodels com Page 19 APPENDIX A...

Page 20: ...Page 20 www oldschoolmodels com Construction Manual APPENDIX A...

Page 21: ...Construction Manual www oldschoolmodels com Page 21 APPENDIX A...

Page 22: ...Page 22 www oldschoolmodels com Construction Manual...

Reviews: