TBM DV8R, Manual

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All control horns should be at about 1” as shown with about ½” servo arms. We recommend 1” servo
arms, yet use the inner hole. The throw required is minimal, yet we want full servo travel to maximize
the mechanical advantage of the linkage.
TURBINE INSTALLATION
Installation of the turbine is simple. Just 4 small screws. However, it is critical to have the thrust angle
of the turbine correct. Each turbine requires a slightly different thrust angle. The angle is critical for
the jet to fly straight, without any trim changes, at any throttle setting. You may need to trim the thrust
line of the turbine to suit your particular turbine. Trimming the thrust angle will be done through flying
the model, then making adjustments on the ground after landing through the use of washers to raise
the front or rear of the turbine slightly. You should fly at half to three quarters throttle depending on
turbine size for general flying. When you go to full throttle there should be no change in attitude.
There are wooden mounts installed into the plane. These mounts are at the correct angle for smaller
thrust turbines of 18 lbs. For larger turbines, at full throttle, the plane may descend slightly. If this
occurs, raise the back of the turbine using washers under the mounting lugs. This will push the back
of the plane down, pushing the front of the plane up, and correcting the issue. We found that with a
25 lb turbine or greater, that 1/8” washers under the back lugs of the turbine mounts make the
necessary change to the thrust angle.
The rails are very wide so that very small diameter turbines fit between the rails. If necessary remove
material so that the turbine fits between the rails. It is best to install the turbine after all other