Great Planes Reactor 1.60 ARF - GPMA1580 - Manual (Page 18)

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8. Adjust the tail gear’s position in the main bushing so
that the tail gear wire is 1/2" [13mm] from the bottom of the
fuselage. Use threadlocking compound on the set screw and
tighten the collar.
ENGINE/MOTOR INSTALLATION
In this section we cover the installation of the Desert Aircraft
DA-50 gasoline engine, the O.S. 1.60 FX two-stroke glow
engine, and the Great Planes ElectriFly 80mm brushless
out-runner motor. Please jump to the section that applies to
your engine/motor installation.
Gas Engine Installation
This section will cover the installation of the Desert
Aircraft DA-50 engine. When you order your engine from
Desert Aircraft, make sure that you specify that you need
the 3” [76mm] standoff mounts and standard muffl er.
A template is provided for the DA-50 gas engine as well as for
the Fuji-Imvac
™ BT-43 EI-2 engine. We recommend the DA-50
for the best 3D performance. The Fuji-Imvac BT-43 EI-2 is a
suitable sport fl ying alternative and installs in a relatively similar
manner. Note: Please use the included 12 x 20mm aluminum
spacers if you are installing the Fuji-Imvac BT-43 EI-2.
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1. Install the 3" [76mm] aluminum standoffs using the
hardware supplied by the engine manufacturer.
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2. Locate two 2-56 threaded ball links and two 2-56 hex
nuts. Install one on the throttle arm and one on the choke
arm using threadlocking compound. Secure the ball links
using the 2-56 hex nuts.
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3. Turn to the back of this manual and cut out the drilling
template for the engine you’re using. Center the template by
matching the template crosshairs with the fi rewall crosshairs.
Tape it in place and use a 1/8" [3.2mm] drill bit to drill four
engine mount pilot holes in the fi rewall. A center punch or
scratch awl can be used to make a centering mark before
you drill. Follow up with a 1/4" [6.4mm] drill bit and enlarge
the holes.
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4. Drill out the throttle and choke pushrod holes using
a 3/16" [4.8mm] drill bit. Note: Some variants of the DA-50
have the throttle and choke arms located on the other side,
so please check your engine before you drill the holes.