Helicopter Technical, Certification & Airworthiness Consultancy
Helicopter Certification & Airworthiness
M Prior Consulting provides independent helicopter technical consultancy to operators, manufacturers, design organisations, regulators, infrastructure owners and project teams.
With more than 40 years of experience spanning military and civil aviation, helicopter operations, experimental flight test, aircraft certification, airworthiness and aviation safety, we provide technically rigorous advice grounded in practical operational experience.
Our work includes aircraft certification and compliance, helicopter performance, handling qualities, safety systems, Operational Suitability Data (OSD), technical assurance and regulatory requirements.
We help clients understand complex technical issues, assess risk, challenge assumptions and make defensible decisions.
With more than 40 years of experience spanning military and civil aviation, helicopter operations, experimental flight test, aircraft certification, airworthiness and aviation safety, we provide technically rigorous advice grounded in practical operational experience.
Our work includes aircraft certification and compliance, helicopter performance, handling qualities, safety systems, Operational Suitability Data (OSD), technical assurance and regulatory requirements.
We help clients understand complex technical issues, assess risk, challenge assumptions and make defensible decisions.
Services include:
- Certification and compliance support
- Part 21 design and certification activities
- Compliance Verification Engineering
- Certification basis and means-of-compliance review
- Aircraft performance assessment
- Handling qualities
- Safety systems
- Operational Suitability Data (OSD)
- Technical review of modifications and design changes
- Independent technical review and assurance
Regulatory & Certification Expertise
Technical expertise informed by direct involvement in aviation regulation and industry standards development.
Mark Prior has contributed directly to the development of aviation standards and regulatory guidance through work with organisations including the UK CAA, EASA, JAA, ICAO, RTCA and EUROCAE.
His experience includes serving as Secretary to EUROCAE Working Group 110 / RTCA Special Committee 237, contributing to the development of Helicopter Terrain Awareness and Warning System (HTAWS) Minimum Operational Performance Standards, under contract to the UK CAA.
He contributed to the revision of Defence Standard 00-970, acting as Topic Area Lead for handling qualities and performance and aligning requirements with EASA certification standards including CS-25 and CS-29.
He held an EASA Class 1 Flight Test Rating and was a Compliance Verification Engineer (CVE) in a Part 21J Design Office.
He was also a member of the EASA Ops 001 Group that transposed JAA Operational Regulations into EU Aviation Law.
Who We Support
Aircraft manufacturers and design organisations
Independent technical and compliance support for certification and design activities.
Helicopter operators
Technical advice relating to performance, safety, operational limitations and regulatory compliance.
Regulators and government organisations
Independent technical expertise, research, standards development and specialist aviation studies.
Offshore energy and renewable developers
Technical assurance relating to helicopter operations, aircraft performance, helidecks and aviation risk.
Legal and professional advisers
Independent technical analysis and expert opinion where aviation engineering or operational issues require specialist interpretation.
Mark Prior has contributed directly to the development of aviation standards and regulatory guidance through work with organisations including the UK CAA, EASA, JAA, ICAO, RTCA and EUROCAE.
His experience includes serving as Secretary to EUROCAE Working Group 110 / RTCA Special Committee 237, contributing to the development of Helicopter Terrain Awareness and Warning System (HTAWS) Minimum Operational Performance Standards, under contract to the UK CAA.
He contributed to the revision of Defence Standard 00-970, acting as Topic Area Lead for handling qualities and performance and aligning requirements with EASA certification standards including CS-25 and CS-29.
He held an EASA Class 1 Flight Test Rating and was a Compliance Verification Engineer (CVE) in a Part 21J Design Office.
He was also a member of the EASA Ops 001 Group that transposed JAA Operational Regulations into EU Aviation Law.
Who We Support
Aircraft manufacturers and design organisations
Independent technical and compliance support for certification and design activities.
Helicopter operators
Technical advice relating to performance, safety, operational limitations and regulatory compliance.
Regulators and government organisations
Independent technical expertise, research, standards development and specialist aviation studies.
Offshore energy and renewable developers
Technical assurance relating to helicopter operations, aircraft performance, helidecks and aviation risk.
Legal and professional advisers
Independent technical analysis and expert opinion where aviation engineering or operational issues require specialist interpretation.
Why M Prior Consulting?
40+ years of aviation experience
Military and civil aviation, helicopter operations and experimental flight test.
Certification expertise
Direct experience of aircraft certification, compliance and design organisation activities.
Regulatory insight
Experience contributing to aviation standards and regulatory working groups.
Operational understanding
Technical advice informed by actual helicopter operations rather than purely theoretical analysis.
Independent judgement
No commercial interest in aircraft, equipment or technology solutions.
Senior-level expertise
Direct access to experienced technical leadership rather than a junior consultancy team.
Military and civil aviation, helicopter operations and experimental flight test.
Certification expertise
Direct experience of aircraft certification, compliance and design organisation activities.
Regulatory insight
Experience contributing to aviation standards and regulatory working groups.
Operational understanding
Technical advice informed by actual helicopter operations rather than purely theoretical analysis.
Independent judgement
No commercial interest in aircraft, equipment or technology solutions.
Senior-level expertise
Direct access to experienced technical leadership rather than a junior consultancy team.