Patmos

Need help with avionics certification or electronics development? You've come to the right place!

DER Certification

Patmos specializes in DO-178C and DO-254 compliance, offering DER and consulting services along with training and templates. Continue Reading →

HARDWARE DESIGN

Patmos has in-house design expertise to help with your avionics development or digital design for any industry. Continue Reading →

TRAINING

Patmos provides industry leading training on DO-178C and DO-254, in a variety of convenient formats. Continue Reading →

ABOUT PATMOS

Patmos is an independent consulting company founded and incorporated by Jeff Reeve and Tammy Reeve in January 2000. Continue Reading →

DO-254 USER GROUP

The DO-254 is a group of industry players in the field of Airborne electronics. Continue Reading →

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If you are seeking assistance in understanding and implementing processes for DO-254, DO-178C and/or ARP 4754A compliance, fast track your success with Patmos. Our highly qualified staff takes pride in helping our clients achieve first pass and ongoing success in their compliance programs, always with honesty and integrity. Learn More

Hardware Development

If you need assistance developing electronics for any industry, partner with Patmos. Patmos has developed a diversity of designs for fields including medical, commercial, consumer products, and of course, aerospace. From FPGA verification to turnkey FPGA/ASIC/Board designs, Patmos has the skillset and design experience that can help. Learn More

DO-254/178C Training

Whether you are seeking training right now for yourself, or training for your entire team as your project is ramping up, Patmos has the high-quality, cost-effective training you are seeking. From online, on-demand training, to live onsite, to fully customized, Patmos can provide the materials and learning environment most suitable for your needs. Learn More

Patmos

Download Patmos Corporate Overview brochure.

Patmos provides consulting services for FAA/EASA certification and digital design for commercial and aviation related digital systems. The staff at Patmos have more than a combined 50+ yearsô experience in digital hardware/software design and avionics certification as well as design and verification experience in the medical IEC standards and automotive standards ISO26262. Patmos was founded in 2000, with the mission to provide integrity and honesty in consulting practices and activities. Learn More

A key specialty of Patmos is avionics development compliance, specifically developing electronics, software and systems to comply with medical IEC, automotive ISO26262, RTCA DO-254, DO-178C and SAE ARP 4754A. Patmos can guide you through the maze of regulatory guidance (FAA, EASA, etc.) to obtain a product or process that is compliant with these certifying bodiesô requirements. Patmos Level A authorized hardware and software FAA DER Tammy Reeve will work as a consultant to your company to determine how to optimize your approach for meeting the appropriate industry standards. Learn More

Training

Training is the first step in coming up to speed on DO-254, DO-178C, and ARP 4754A. Patmos is one of the pre-eminent training companies in the world, offering high quality materials in a variety of convenient formats. Learn More

Design

If you need assistance with your actual design work ì in aerospace or any other industry ì Patmos can help you with this as well. From the simplest PLDs, to complex boards, and everything in between, Jeff Reeve has the vast experience you seek in a knowledgeable hardware designer. Learn More

Patmos is located in the greater Seattle/Tacoma area. Contact Patmos.

DO-178C & DO-254 Advice Blogs

The Top 3 Types of Information Typically Missing from DO-178C Plans
What are the most common things missing from DO-178C plans? A template can help. Continue Reading →
Live Chat Mar 30 & 31: Women in Aerospace Engineering
Tammy Reeve, President – Patmo and Airworthiness Certification Services, LLC will be joining the two day live chat on Women in Aerospace Engginering and will be addressing questions such as: Do you consider the need for safety in small 0-1 person flying cars or unmanned Continue Reading →
Is it OK to Provide or Use Hardware COTS IP in Avionics Designs?
The use of commercial off-the-shelf intellectual property (COTS IP, also known as IP cores or simply IP) has been exploding in every sector of the electronics industry for decades. Silicon area is readily available and using these pre-designed blocks has been a huge boon to Continue Reading →
How AMC/AC 20-189 Stops úUn-Accomplishment Summariesù in DO-178C or DO-254 programs
How Can the New AMC/AC 20-189 Help Manage Problem Reports in DO-178C and DO-254 Projects? Your DO-178C or DO-254 Accomplishment Summary becomes a úunù accomplishment summary when too many open Problem Reports (PRs) remain unresolved at the end of a certification or TSO project. Both Continue Reading →
Overarching Properties
The Overarching Properties initiative seeks to provide flexibility and efficiency in the certification process. “Overarching Properties,” previously known as úMeta Objectives working group,ù was first publicly discussed at the 2016 FAA úStreamlining Assurance Processes Workshop.” What is the úOverarching Propertiesù initiative? The Overarching Properties initiative Continue Reading →