Navaid Devices AP-1, Руководство пользователя

Страница: 7 / 32

- 5 -
SERVO MOUNTING HARDWARE
The installation kit that Navaid offers for the Varieze, LongEZ. and Cozy is shown in
Fig. 2.
INSTALLATION KIT FOR RUTAN EZs
Fig. 2
Kits for other aircraft at least consist of a pushrod (cut to proper length by the user) and a
suitably sized rod end bearing for connecting to the airplane. When we are familiar with
the customer's aircraft type and know of a special requirement, we try to provide any
necessary special part that might be difficult for him to make.
SELECTING A SITE FOR THE SERVO
For most aircraft, it's relatively easy to find a suitable site for locating an S-2 crank arm
servo. The length of the pushrod, and to some extent the angle it makes with the driven
element, are user selectable.
The rod end bearing allows some misalignment, usually about 8 degrees, between the
servo pushrod and the plane of rotation of the crank arm. This limitation on angular
displacement often determines the minimum pushrod length. Any side-to-side movement,
such as may be caused by elevator action being mixed with the aileron movement at the
stick, must not jam the rod end bearing.
A suitable hard point must be found, or built, for mounting the servo. Of course, the
mounting place needs to be as accessible as possible, and there must be a means of
linking to the aileron control system.