Servo Application Guide

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DRAFT

This configuration guide is intended to assist customers in choosing the right Dynon Avionics Autopilot servos for their aircraft.


Before purchasing hardware, please read our latest autopilot news update (LINKIFY).

To order autopilot hardware, download our complete price list / order form. Fax your order to Dynon Avionics, or use it to organize before calling us at 425-402-0433.


Except where a configuration has been specifically noted to be known to work, servo suggestions are generally Dynon's best estimates based on all obtainable data at the time. As such, the servos indicated may or may not actually be the most suitable for each aircraft type. Dynon will swap out servos for alternate models should a customer find that a particular servo is sub-optimal in some way.

Currently, the following servos are available for purchase:

SV32S

SV32L

SV42S

SV42L


The SV32 and SV32L are the smallest servos that Dynon Avionics will offer and produce up to 36 in-lb of torque. They have conventional output arms for use in push-pull control systems.

The SV42 and SV42L produce up to 55 in-lb of torque, utilizing a lightly larger servo motor than the SV32. They also have conventional output arms.

“L” (long arm) and "S" (short arm) models only differ in the length of their output arms. "L" servos allow for slightly more travel in aircraft that require it, at the expense of a small amount of available force at the arm attach points.

Capstan Servos: Servos that are equipped with a capstan for use in cable control systems will not be initially available. These are denoted by the "C" suffix. Popular aircraft that use these types of servos include the Zenith 601 (on the pitch axis), the Glasair Glastar series, and Murphy Moose.


Full servo specifications are available at www.dynonavionics.com/docs.


RV-6

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll Yes SV32L P? Yes
Pitch Yes SV32S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


RV-7

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll Yes SV32S P? Yes
Pitch Yes SV32S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


RV-8

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll Yes SV32S P? Yes
Pitch Yes SV32S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


RV-9

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll Yes SV32S P? Yes
Pitch Yes SV32S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


RV-10

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll Yes SV42S P? No
Pitch Coming Soon SV42S P? No

A mounting kit is currently available for RV-10 roll axis only, as it shares this mounting kit with the RV-7/8. A mounting kit for the pitch axis is under development and coming soon.

However, neither the servo configuration or roll mounting kit has yet been tested in an aircraft.


RV-4

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S P? Yes
Pitch Yes SV32S P? Yes

A mounting kit is available for RV-4 pitch axis only. Dynon does not currently have plans to produce a roll mounting kit. However, when installed, the SV32S is known to produce good results.

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


RV-3

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S No
Pitch No SV32S No

Though the RV-3 has not been tested, Dynon expects good performance - similar to the rest of the tested RV line - from a pair of SV32S servos.


Sonex

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S P? Yes
Pitch No SV32S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results.


SeaRey

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42S P? Yes
Pitch No SV42S P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results. Aircraft has significant adverse yaw that is apparent but controllable by the autopilot.


BD-4

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42C P? P? Yes
Pitch No SV42S P? P? Yes

Customer aircraft of this type flew the autopilot in the Dynon test/development program with good results. Aircraft has significant adverse yaw that is apparent but controllable by the autopilot.


Cozy

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.


Europa

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.


Express

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42S Unknown No
Pitch No SV42S Unknown No

No known installations. Servo suggestions based on available data.


F-1/Harmon Rocket

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.


Falco

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.


Glasair II/III

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.


Glasair Glastar and Sportsman

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42C P? Yes
Pitch No SV42C P? Yes

Customer Glastar Sportsman 2+2 flew the autopilot in the Dynon test/development program with good results.


Lancair 235/260/320/Legacy

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S P? Yes
Pitch No SV32S P? Yes

Customer Lancair 320 flew the autopilot in the Dynon test/development program with good results.


Lancair ES

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42S Unknown No
Pitch No SV42S Unknown No

No known installations. Servo suggestions based on available data.


Lancair IV-P

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42S Unknown No
Pitch No SV42S Unknown No

No known installations. Servo suggestions based on available data.

Murphy Moose

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV42S Unknown No
Pitch No SV42C Unknown No

No known installations. Servo suggestions based on available data.


Thorp T-18

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32S Unknown No

No known installations. Servo suggestions based on available data.

Velocity

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV42S Unknown No

No known installations. Servo suggestions based on available data.


Zenith 601

Axis Dynon Mounting Kit Available Suggested Servo Type Arm Attach Point Known to work?
Roll No SV32S Unknown No
Pitch No SV32C Unknown No

No known installations. Servo suggestions based on available data.