N-Performance FAQ's

Error Adding Airport or Runway
1 Introduction Occasionally, users may encounter a problem when adding airports to their obstacle database. This error is due to the presence of runways th...
Fri, 25 Jan, 2019 at 1:14 PM
Declared Distances Different From Published Values
There are several cases where declared distances supplied by authoritative data differs from published values in AODB: Obstacle(s) may be present within o...
Fri, 25 Jan, 2019 at 1:28 PM
How Frequently is the Airport Obstacle Data Updated?
The airport obstacle database is updated regularly following the AIRAC cycle, every 28 days. In addition to the AIRAC cycle, data is released on a daily ba...
Thu, 18 Jul, 2019 at 5:26 PM