Skookum SK360 User Manual

Skookum SK360 User Manual

Digital flybar

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SK360
User Manual and Setup Guide
Throw out your 1940's-technology mechanical
flybar, and replace it with a Digital Flybar.
Lightening-quick 3D and solid hovering in wind, with
a less complex, lighter rotorhead that gives you
more power or longer flight times!
Digital
Flybar
Rev 1.10
SK360 User Manual & Setup Guide

Table of Contents

1
Intro ...............................................................................3
2
Package Contents ........................................................3
3
Safety.............................................................................4
4
Mounting the Gyro........................................................4
5
Helicopter Airframe Setup ...........................................5
6
How to Check Cyclic Pitch & Phasing ........................7
7
Connections..................................................................9
8
Modes, Indicators, and Power-Up .............................10
9
Gyro Setup Using the USB Interface ........................11
10
After Setup: Final Check!...........................................13
11
Flight with the SK360 Gyro ........................................13
12
Basic Tuning ...............................................................14
13
14
USB Interface Software Reference............................16
15
Advanced Tuning Options .........................................19
16
Tuning Troubleshooting Guide .................................21
Appendix A: Specifications..................................................23
Appendix B: Firmware Upgrades.........................................23
©2008 Skookum Robotics, Ltd
2

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Summary of Contents for Skookum SK360

  • Page 1: Table Of Contents

    Rev 1.10 SK360 User Manual & Setup Guide Digital SK360 Flybar Table of Contents User Manual and Setup Guide Intro ................3 Package Contents ............3 Safety................4 Mounting the Gyro............4 Helicopter Airframe Setup ...........5 How to Check Cyclic Pitch & Phasing ......7 Connections..............9...
  • Page 2: Intro

    Intro Safety The SK360 Digital Flybar is a high performance, compact, and lightweight pitch An R/C Helicopter is not a toy, and can cause serious injury to people or damage to and roll stabilizer for model helicopters. Its function is to replace the traditional property.
  • Page 3: Helicopter Airframe Setup

    This will allow higher gains, and better performance. Some kind of anti-rotation or “follower” mechanism will be needed, to keep the top of the swashplate from rotating relative to the blade grips. ©2008 Skookum Robotics, Ltd ©2008 Skookum Robotics, Ltd...
  • Page 4: How To Check Cyclic Pitch & Phasing

    USB interface. If the pitch becomes negative adjust the phasing clockwise (+), if positive then adjust it anti-clockwise (-). Note: this will give ©2008 Skookum Robotics, Ltd ©2008 Skookum Robotics, Ltd...
  • Page 5: Connections

    Setup mode lets you use the USB connection, and also used for mechanical setup - connect this port to your radio until the SK360 unit is told to use it as an input with control motions pass straight through, with no stabilizing action. While in this mode, its setup software, or your radio receiver could be damaged (see Section 13).
  • Page 6: Gyro Setup Using The Usb Interface

    WARNING: All the control input and sense directions in steps 2 and 3 must be First install the USB Interface software for your SK360 gyro. Unplug the correct, otherwise your heli will instantly crash if you try to fly it.
  • Page 7: After Setup: Final Check

    3) If the helicopter doesn’t hold well in pitch or roll, or “slides” to the side, turn the Hiller gain up a small amount. If the helicopter oscillates while 11 Flight with the SK360 Gyro hovering, turn the Hiller gain dial down slightly. Repeat until you get the best gain.
  • Page 8: Remote Bank Switching And Hiller Gain

    If you have a seven-channel radio receiver and your swashplate only uses three To use the SK360 interface software, first install the software on your PC, and plug servos, you can set the fourth servo output to act as a gain input.
  • Page 9 This is the same idea as sub-trim on your transmitter. Be careful that the servo doesn’t bind. Mixing: The SK360 takes over swashplate mixing, so the inputs to the gyro are separate channels for elevator, aileron, and pitch (collective) control. This...
  • Page 10: Advanced Tuning Options

    The Hiller gain dial is used to set the elevator and aileron hiller gains in the Show Actual Gains: Brings up a table of the actual gains the SK360 will use in same manner as described above for the Bell gain dial.
  • Page 11: Tuning Troubleshooting Guide

    Aileron, and Yaw axes. Check that slows down). Gets worse with the SK360 gyro and the yaw gyro are During yaw piros with collective Damping gains are too low, servos are higher Hiller gains.
  • Page 12: Appendix A: Specifications

    90 days from the purchase date. This warranty is Operating Voltage 3.6 to 8.5 VDC limited to the original purchaser. In the event of a malfunction, Skookum Robotics Power Consumption 28 mA will repair or replace the product to meet its standard operating condition. This...

Table of Contents