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Construction Manual
Step 123 - Attach wheels.
Use the included 1/8” i.d. wheel
collars to hold each wheel (not included) on the axles (one on each
side of the wheel). For a maintenance free installation, file a small
flat on the axle where the set screw of the wheel collar touches.
Also use a touch of thread-locking compound to keep the screw
from loosening over time.
Step 124 - Windows.
Finishing the assembly of the RH25 are
the windows. On the fuselage plans we have included a template for
the side windows and the front windscreen. Cut the windows from
the included plastic sheet, making sure to cut it slightly oversize
then trim as necessary. Attach each window to the fuselage with
canopy glue.
This completes the assembly of the Robinhood 25 fuselage.
Now you’ll need to adjust the control throws and check for
balance.
Step 125 Recommended C.G. setting:
An important part of preparing the aircraft for flight is properly
balancing the model. This is especially important because of the
various motor/battery combinations that can be used.
CAUTION! DO NOT SKIP THIS STEP!
The recommended Center of Gravity (CG) location for the RH25 is
measured back 2.7” from the leading edge of the wing, and you’ll
see this marked on the fuselage plan with this symbol.
If necessary, move the battery, receiver,
and/or add weight to either the nose
or the tail until the correct balance is
achieved. Stick-on weights are available at
your local hobby store and work well for
this purpose.
Recommended Control Throws:
The amount of control throw should be adjusted as closely as
possible using mechanical means, rather than making large
changes electronically at the radio.
By moving the position of the clevis at the control horn toward
the outermost hole, you will decrease the amount of control throw
of the control surface. Moving it toward the control surface will
increase the amount of throw. Moving the pushrod wire at the
servo arm will have the opposite effect: Moving it closer to center
will decrease throw, and away from center will increase throw.
Work with a combination of the two to achieve the closest or exact
control throws listed.
Aileron 1/2” up/down
Elevator 1/2” up/down
Rudder 3/4” left/right
(
Expert tip:
Once the control throws have been set, cut a few pieces of
medium silicone fuel tubing (or heat shrink tubing) to go around each
of the clevises. This will keep them from opening during flight.)
Preflight:
Charge both the transmitter and receiver pack for your airplane.
Use the recommended charger supplied with your particular radio
system, following the instructions provided with the radio. In most
cases, the radio should be charged the night before going out
flying.
Check the radio installation and make sure all the control
surfaces are moving correctly (i.e. the correct direction and with
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 it will run consistently and constantly at full throttle when
adjusted.
Check all the control horns, servo horns and clevises to make
sure they are secure and in good condition. Replace any items
that would be considered questionable. Failure of any of these
components in flight would mean the loss of your aircraft.
Range check your radio before flying
Before each flying session, range check your radio. This is
accomplished by turning on your transmitter with the antenna
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 complete control of
all functions.
If not, don’t attempt to fly! Have your radio equipment checked
out by the manufacturer.
Warranty Information
Old School Model Works
guarantees this kit to be free from
defects in both material and workmanship at the date of purchase.
This warranty does not cover any parts damage by use or
modification. In no case shall
Old School Model Works’
liability
exceed the original cost of the purchased kit. Further,
Old School
Model Works
reserves the right to change or modify this warranty
without notice.
In that
Old School Model Works
has no control over the final
assembly or material used for the final assembly, no liability shall be
assumed nor accepted for any damage of the final user-assembled
product. By the act of using the product, the user accepts all
resulting liability.
Limit of Liability
In the use of this product, our only obligation shall be to replace
such quantity of the product proven to be defective. The user shall
determine the suitability of the product for his or her intended use
and shall assume all risk and liability in connection therewith.
If the buyer is not prepared to accept the liability associated with
the use of this product, the buyer is advised to return this kit
immediately in new and un-opened condition.
For more information on all of our other products, as well as the
latest news from Old School Model Works:
Please check out out website: www.oldschoolmodels.com
