Install Radio Gear
There are many workable ways to install radio gear in the Terminator - what follows is one way that we have found to be easy to install, adjust and balance the ship with.
Here's the trick: Make sure that the longest unsupported run of cable is about 1/2" with the servos in their neutral position. This should leave just enough travel to handle full surface deflection, and with only 1/2" or so unsupported, the cables will not flex in compression.
Solder a threaded coupler on the servo end of each cable. The V-Tail end gets a z-bend. Some builders prefer to solder the coupler end first, and then do the z-bend at the tail, while others prefer to do this in the reverse order. Either approach will work fine.
Mounting the servos stacked parallel to the bulkhead will allow you more adjustment range of the CG, and will make it easier to reach up front for moving things around, but it's a little trickier to reach in for adjustments. Check the length of your servo arms, and trim the excess arm length so that you attach the pushrods to the hole 9mm from the servo arm pivot point. You will not need more throw, so you can discard any length over this length - it will just make it harder to fit things in if you leave the arms longer!
V-Tails must have more down travel than up to work correctly. We've found that with CS-20/21 servos, moving the servo arm one 'click' ahead gives the right throw offset. To do this, center the servos with your radio on, and attach the servo arms so that they are at 90 degrees to the fuselage centerline. Then take each servo arm and re-attach it one "click" ahead - so that the arm is one notch closer to the front of the plane - than the normal 90 degree position.
If you use a servo arm of the length described above and V-Tail control horns of the length shown on the plans, we've found that setting your transmitter throws to around 100% gives a decent control feel.
The Terminator has a wide balance range. If you are a beginner, try balancing the Terminator about 2.5" - 2.75" from the leading edge of the wing. If you have flown HLG's before, or are used to a more sensitive ship, start with 2.75" - 3" from the leading edge. We use 3" from the leading edge as the "right" balance point for a performance-trimmed ship.
If your Terminator is balanced at 3" from the leading edge, and the nose seems to "ride high", then you may need to reduce the wing incidence (add a 1/16" shim under the rear of the wing trailing edge and try again).
If the Terminator tends to "tuck" on a very hard launch, try adding a small shim under the leading edge of the wing, or reducing the amount of shim under the trailing edge of the wing. Another possible reason for this behavior is a tail boom that is not rigid enough.
Another way to tell if you need to change the incidence is to look at your elevators at the end of a flight. If the neutral position of the tails is slightly down, then you need to shim up the wing trailing edge a bit, and vice-versa if the neutral position is slightly up.