slipping a M3 lock washer and then, an M3 washer onto the M3
bolts. Hold the strut in place against the fuselage side and bottom
of the wing panel and install the bolts, starting the threads with
your fingers. Tighten the bolts in place firmly with a hex driver.
An easy way to store and transport your wing struts is to use thin
foam to wrap each end of both struts. This separates them and
protects the end fittings from damage. Between flying sessions,
leave the strut bolts installed in the wing panels and fuselage sides
to keep them from becoming lost.
CENTER OF GRAVITY:
Establishing the correct Center of Gravity on this or any R/C model
airplane is critical to its ultimate success in the air.
The
recommended starting balance point for the Rascal 110 ARF, is
located 4-1/2" behind the leading edge of the wing, immediately
next to the fuselage side. This is the location of the main wing
spars. We've flown this airplane with the C.G. location as far back
as 5" without any trouble. However, moving the C.G. further back
tends to make the elevators more sensitive and will also accelerate
the stall. Remember that the C.G. location is always determined
with the airplane fully assembled (including the wing struts) and
the fuel tank empty.
For reference, our finished Saito 1.50 powered Rascal 110 shown
in this manual, weighs exactly 12 pounds, 2 ounces and required
no lead to balance. The 4-cell, 1400mAh battery pack was placed
beneath the fuel tank, wrapped securely in foam.
Because of its large size, balancing the Rascal 110 using a typical
balancing fixture may not be practical.
However, you can get
acceptably accurate results by first placing a piece of tape,
temporarily, on each side of the fuselage, just beneath the wing, at
the 4-1/2" location. Then, simply use your fingers beneath each
wing panel to pick the model up at the C.G. location. Another
method is for you and a friend to pick the model up at the wingtips,
at the main spar location.
The goal is to get the airplane to balance perfectly level at the
desired C.G. point. Level means level - not nose down or tail down
- level! If the nose hangs down, the model is nose heavy.
Likewise, if the airplane hangs tail down, it is tail heavy. If either of
these conditions exist with your model, they must be corrected.
If the model is just a "little" nose heavy - nose down a few degrees
- it can be safely flown without problem. If the model is very nose
heavy, then, it should be corrected. This condition is most easily
corrected by shifting the battery pack further back in the radio
compartment. If the model is still too nose heavy, then, small
stick-on lead weights - available from your hobby shop - can be
used to temporarily correct the problem. Later, after flight trimming
the airplane, these weights can be placed inside the very rear of
the fuselage, through the elevator servo mount hole.
If the model is tail heavy, move the battery pack as far forward as
possible to correct the problem. If the airplane still needs more
weight to balance, several things can be done:
• Heavier, after-market wheels
• Heavier, after-market spinner
• A larger, thus heavier, battery pack
• A brass Heavy Hub propeller nut - available from
Harry Higley Products
In the unlikely event that you cannot achieve the correct Center of
Gravity using the above methods, then, stick-on lead weights
should be used.
When the correct C.G. location has been
established, locate the battery pack in the correct location. Wrap
the pack in foam rubber and place it securely in the fuselage.
CONTROL SURFACE TRAVEL:
The following Low Rate control surface movements will provide
your RASCAL 110 ARF with smooth, predictable flight
characteristics. We suggest that you start with these Low Rate
movements and adjust them later to suit your style of flying. Note
that the rudder and elevator measurements are taken from the
widest part of the surface at the trailing edge.
The aileron
measurements are taken at the inboard trailing edge. We have
also provided the High Rate settings that we use with our Rascal
110 models. Again, these can be adjusted to suit your style of
flying.
LOW RATE TRAVEL
HIGH RATE TRAVEL
AILERONS:
1-1/16” UP - 1-1/16” DOWN
1-3/8" UP - 1-3/8" DOWN
ELEVATORS: 1-3/16” UP - 1-3/16” DOWN
1-5/8" UP - 1-5/8" DOWN
RUDDER:
1-3/4” LEFT - 1-3/4” RIGHT
SAME
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