An Engine Out Procedure (EOP) is a custom-designed lateral flight path (escape route) used when an engine fails during takeoff. Unlike a Standard Instrument Departure (SID), which is for normal operations, an EOP focuses on minimizing terrain and obstacle constraints.
Most runways offer a default straight-out option, which typically results in the lowest maximum takeoff weight (MTOW). However, many runways also have custom-designed EOPs to maximize takeoff weight and optimize the one-engine-inoperative (OEI) climb. There are two main types of EOPs:
- Jeppesen EOPs: Designed for airline operations and relies heavily on VOR and DME.
- RNAV EOPs: Designed by ForeFlight, using GPS waypoints and other navigation aids for improved performance. The RNAV EOPs will typically provide the highest MTOW by minimizing climb constraints. They will follow initial SID procedures to simplify a pilot’s workload when possible.
When viewing the list of available straight-out and EOPs, MTOW is calculated for each EOP, allowing for easy comparison of performance.
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