Aircraft Modification

A complete design and analysis service from concept to certification

The process of modifying an aircraft can range from the replacement or addition of components or flight bag contents to complex physical changes to the airframe structure. Most changes require detailed analysis of the proposed modifications and the presentation of design evidence to the certification authorities for airworthiness clearance.

We have significant experience in delivering aircraft modification programmes to our clients. In partnership with organisations that perform the physical modifications, Stirling will plan, execute and deliver the programme from the concept stage to equipment/systems qualification tests through to flight test, all in accordance with the certification authorities’ regulations.

Some complex programmes require a wide range of these skills to ‘reverse-engineer’ an aircraft model from sparse data sets. We specialise in reverse engineering and are often approached to support aircraft design and modification programmes where original OEM data is unavailable or prohibitively expensive. Our niche capabilities and experience enable us to recreate accurate data for a fraction of the cost of purchasing from the original OEM.

Typical modification programmes that we get involved in include: passenger-to-freighter conversions; integration of new stores; new landing gear; increased gross weight; added equipment (internal and external); aerodynamic shape changes; engine modifications; hush-kits; structural and equipment modifications; and aerial fire-fighting conversions.

Stirling Dynamics is currently in the process of adopting EASA Part 21J Design Organisation Approval EASA.21J.657 from our parent company, the Expleo Group.

Case Studies