Construction Manual
www.oldschoolmodels.com
Page 15
Glow power
The engine mounts so the crankshaft is
positioned at the center of the firewall.
Holes will need be drilled for the throttle
pushrod and fuel lines to pass through
into the fuselage.
Step 121 - Covering
Now it is time to cover the Robinhood 25. Remove the powerplant,
main gear, the tailwheel, pushrods, and any other components that
would get in the way of applying the covering.
Double check that all surfaces are smooth and ready to cover. Sand
as necessary, then cover the entire airframe with the covering/finish
of your choice.
Note that if you’re powering with an electric motor, you’ll need to
make an hole for the cooling air to escape the rear of the fuselage.
We choose to cut the covering away in this area, on the underside
of the fuselage.
When the covering is complete, re-attach all the components 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 vinyl. They are a very
well known provider of custom graphics
for R/C models.
We have supplied them with the artwork
needed to cut the correct size logos. You can order straight from
them, choosing the colors that work for you.
Contact Callie Graphics at this link: https://callie-graphics.com or scan
the QR code on the previous page.
Note that Callie Graphics is not affiliated with Old School Model
Works, nor does Old School Model Works generate any income
from this partnership.
Step 122 - Attach the Control Surfaces
Now is the time to attach all the control surfaces to the airframe, by
gluing the hinges in position.
attached to the outermost hole
on each control horn.
Finish the installation of your
radio gear by adding the receiver,
flight pack battery and the switch.
We mounted the receiver to the
fuselage side using a bit of self-
adhesive hook-and-loop (not
included).
The flight pack battery is installed under the TF and the switch can
be installed on the side of the fuselage where desired.
Step 120 - Power system
Installing your power system of choice is up next. We’ll show photos
for electric and glow installations. Note that these are suggestions
only as your power system might vary from what’s shown here.
We mentioned this earlier, but it bears repeating. Our engine
size recommendation range is a .25 two -stroke or an electric
motor with similar power output ( paired with a 60amp ESC and
3s LiPo). Remember that the Robinhood 25 is a fun-scale model
that is intended to fly at scale-like speeds, so prudent throttle
management should be practiced. 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.
Electric power
The motor mounts to the
center of the firewall and
a hole will need be drilled
to allow the wires to pass
through into the fuselage.
Also a few cooling holes
are needed for internal
battery cooling.
The ESC mounts
underneath the TF battery
tray and the motor’s power battery mounts to the tray. Both the
ESC and battery are held in place with more self-adhesive hook-
and-loop.
