Electrical Systems and Avionics

Signature Course

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Learn How to Build Your Airplane
From the Comfort of Your Home or Workshop

Join EAA® SportAir® Workshops online for a new way to learn how to build your aircraft.

  • Learn at your own pace
  • Unlimited Course Access.
  • Accessible on any device, including your smart phone, tablet, and computer.
  • Affordable! A typical in-person, two-day workshop would cost over $700 when you add up travel expenses, hotel, and course fees.
  • Hands-on materials available! While not included in the course fee, you can order a kit of hands-on project materials and follow the instructor step by step with the actual materials used in the course for a small additional fee.


Companion Electrical Projects Kit of Materials
($79 + shipping)
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EAA Member Price is: $149

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Course Description

The Electrical Systems and Avionics course is an 11-plus-hour, 17-section online course. Instructor Dick Koehler is an expert with considerable experience in aircraft electrical systems and avionics and, most importantly, a teacher who can communicate complex ideas.

The curriculum is centered on the installation process. The following subjects are presented: special tools needed, wire size and circuit breakers, antenna mounting, coax cable installation, wiring of radio systems, soldering and crimping components, alternator and electrical system requirements, installation of electrical systems, and communication and navigation antenna systems. You also will learn proper soldering techniques, connector installations, multi-pin connections, and more. In addition, you'll learn about potential problem areas encountered in aircraft electrical system installation and the solutions.

The course is designed to provide the opportunity to practice, and you will complete several hands-on projects designed to reinforce the items discussed in the classroom portion of the course.

A certificate is awarded upon completion.

Electrical systems have long been a problem area for the aircraft builder and restorer. Let EAA® SportAir take the mystery out of aircraft electrical systems.

Your Instructor


Dick Koehler
Dick Koehler

Dick Koehler has been an EAA member for more than 30 years and has helped more than 2,000 EAA members get started on installing their aircraft electrical systems. He’s an EAA Technical Counselor and Flight Advisor, and holds an FAA A&P with IA rating. Dick has written numerous articles for EAA Sport Aviation and has presented dozens of Hints for Homebuilders video segments. He previously instructed Avionics at a local Aviation Community college and is a distinguished retired Naval aviator. Dick helps builders develop skills and acquire the confidence to successfully wire their aircraft and install today’s complicated avionics.


Course Curriculum


  Section 04 Electrical Tools
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  Section 05 Crimping
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  Section 06 Crimping Projects - Terminals and Molex Connectors
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  Section 07 Circuit Breakers, Switches, Wire Routing and Ground Bonding
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  Section 08 Soldering and Shrink Tubing
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  Section 11 BNC Connector Project
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  Section 12 Monitoring and Mapping Your Electrical System
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  Section 14 Electrical Troubleshooting
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  Section 15 Review
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  Section 16 Electrical Panel Project
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  Section 17 Final Review and Additional Resources
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"Dick was exceptionally knowlegable and wonderful teacher. Most helpful in theory and hands on. Answered questions on automotive engines electronics – aviation applications with helpful examples and suggestions"
— Kurt S. | Dallas, TX

"This was a GREAT workshop! Dick Koehler is extremely knowledgeable and great in teaching the subject. I was uncertain about the contents of the course. Fortunately, I decided to attend and loved it. The projects are great!"
— James B. | Lakeland, FL

Amy Speaks About Her Experience taking the Electrical Course....

Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course. You decide when you start and when you finish.
How long do I have access to the course?
How does unlimited access sound? After enrolling, you have unlimited access to this course for as long as you like, across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy. If you are unsatisfied with your purchase, contact us in the first 30 days and we will issue a full refund.

Get started now!