Short answer: A conventional-to-PBN feasibility study checks whether replacing or complementing ILS, VOR, NDB or other conventional procedures with PBN, RNP APCH, RNP AR or SBAS/LPV procedures is technically feasible and operationally worth the cost.
What the study compares
- Current conventional procedure minima and accessibility.
- Potential PBN track geometry and obstacle constraints.
- Terrain, airspace, fleet and avionics compatibility.
- ATC workload, route structure and traffic flow impact.
- Expected reduction in track miles, delay or fuel burn.
- Potential minima improvements and weather accessibility.
- Safety case and implementation complexity.
- Publication, validation, training and stakeholder effort.
Useful decision result
The output should not be a generic recommendation to adopt PBN. It should state which runway, procedure or airspace concept has a measurable benefit, which one does not, and what data supports the decision.
Frequently asked questions
What is a conventional-to-PBN feasibility study?
It is a technical and economic study that compares current conventional navigation procedures with possible PBN procedures and quantifies whether the operational benefits justify implementation.
What benefits can be measured?
Benefits can include lower minima, improved accessibility, shorter track miles, reduced fuel burn, better terrain avoidance, increased capacity, CCO/CDO opportunities and better resilience when conventional navaids are unavailable.
What are the benefits of a Conventional-to-PBN transition study?
The study quantifies the technical and economic value of transitioning from ground-based navaids to satellite-based PBN. It identifies potential improvements in safety, lower approach minima, and fuel savings.
Is PBN transition worth it for small airports?
For many airports, PBN reduces reliance on expensive ground infrastructure. Our feasibility studies help smaller runways decide if the investment will result in higher operational reliability and lower maintenance costs.
Assess PBN value
Compare technical feasibility and operational benefits before implementation.