When on a RNP 1 route is indicated B235 Y, means that all turns shall be made within the allowable RNP tolerance of a tangential arc between the straight leg segments defined with a radius of:
Domanda 243, Air Law - ATPL - Airline Transport Pilot license
| 22.5 NM between 30° and 90° at and above FL260 |
| 25.0 NM on the route between 30° and 90° at and above FL 250 |
| 20 NM on the route between 30° and 90° at and above FL200 |
| 22.5 NM between 30° and 90° at and above FL200 |
