Supplemental Type Certificates

Supplemental Type Certificates, STCs are an approved change to an aeronautical appliance, an aircraft, engine, radio, etc., which in turn were issued a (type-)certificate as an aeronautical appliance. 

In the case of engines, STCs are required to meet the requirements of FAR/CS 33 as well as FAR/CS 36, and as they are attached to an aircraft, they also must meet the requirements of the certification of the aircraft that they are installed on, following:

Part 25 for Transport Category aircraft

Part 23 for Light Fixed-Wing aircraft

Part 27 for Light Helicopters, or

Part 29 for Large helicopters. 

Approval for design changes is undertaken under FAR/CS 21: 

• Subpart J relating to the design organisation, 
• Subpart E for STCs, 
• Subpart K for production approval, and 
• Subpart Q for matters relating to marking of components. 
• Subpart H pertains to the airworthiness certificate status, which changes throughout R&D and certification processing. 

A Regulator (FAA, EASA, UK-CAA, etc.) enters into a process agreement at the commencement of a design change, confirms the specific set of regulations that must be complied with, including the amendment status that applies. It is a very well-defined process, and can be daunting on first efforts as the evaluation is... rigorous. 

Here shortly you will find a list of the STCs and associated details that are available for installation or that we are working on. deltaBurn, in conjunction with its JV partners, will update the development status of the STCs as they commence processing, and as they become available.

deltaBurn has commenced preliminary discussions and briefings with a major National Airworthiness Authority, NAA, that happens to have a long history of supporting innovation and technological advances. We are evaluating the most effective manner to get the keystone STC out of the door and to extend to a globally effective change to the use of jet fuel, and CO2, NOx emissions.