Radio Equipment	Updated: Sep 7th, 2007 - 12:28:45

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JR 8103 Radio Control for Aircraft, Helicopters and Sailplanes. By Greg Smith - slopeflyer.com Apr 25, 2006

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The 8103 is JR's successor to the 388. It offers several new features - most importantly a new large size screen for easier programming. A graphical interface makes it quicker to program than its predecessors. The 8103 maintains all of the features you would like to see in a full-house computer radio. It has eight channels, 10 model memory, PCM and FM, and all of the traditional features including airplane, helicopter and sailplane programming as well as six types of programmable mixing.

There are 2 models of the JR 8103. The main difference is that newer versions have digital trim.

Airplane Programming Features

• Wing Type - Normal, Flaperon, Delta
• Elevator to flap mixing Aileron to rudder mixing
• Landing mode with preset elevator compensation and flap position that can be set to automatically actuate at a given throttle position
• Snap roll in four directions - right up, left up, right down, left down
• Flap pot authority adjustment
• Spoiler channel switch/pot selection
• 6 free programmable mixes
• Aileron differential

Helicopter Programming Features

• In-flight trim adjustment for each flight mode
• Four pre-programmed CCPM mixes
• Invert and pitch curve offset
• Acceleration mix tail rotor compensation
• Rudder offset position in hold
• Remote gyro gain adjustment capability
• Gyro rates can be altered for each flight mode (Normal, Stunt, Hold)
• Three free programmable mixes
• External pitch and hovering trim knobs Selectable gyro gain switch positions

Sailplane Programming Features

• V-tail mixing
• Dual or single servo flap modes
• Flap channel switch or pot selection
• Elevator to flap mix with independent up and down values
• Aileron to flap mix
• Aileron differential
• Flap to elevator mix with independent up and down values with selectable switch positions and adjustable offset
• Flap to aileron mix with selectable switch positions and adjustable offset
• Aileron to rudder mixing with selectable switch position
• Butterfly/crow mode with two independently selectable settings and adjustable
• 6 free programmable mixes
• Count up and countdown timer
• Full-wing trailing edge options including the proportional operation of camber, reflex, crow, launch preset, normal and virtually any desired trailing edge option imaginable

Related Links

JR 8103 resources

If you have an 8103 you should check out Sherman Knight’s programming articles.

Find his articles at:
http://www.reddata.com/sass/soaring_info/tech.htm

Good articles on setting flaps on a JR radio can be found at:
http://www.orlandobuzzards.org/Flaps.htm
or
http://www.benodee.com/rc/jr8103_flap_program.htm

For Escape owners or others with 6-servo wings check out:
http://www.benodee.com/rc/jr8103_jm_escape.htm

And the elusive reverse differential when using Crow can be found at:
http://www.charlesriverrc.org/articles/radio/tomhoopes_8103_reverse_differential.htm

JR Radios - http://www.jrradios.com/

Horizon Hobby - http://www.horizonhobby.com/

© Copyright 2007 by rchobbyresource.com

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