Planning for Take-Off - Obstacle Clearance

May 19, 2025

Tags: AviationFAA

Planning for Take-Off: Obstacle Clearance

Understanding obstacle clearance is critical for safe and efficient flight operations, especially during takeoff. This article explores the key FAA regulations and procedures related to obstacle clearance, focusing on one-engine-inoperative (OEI) takeoff climb performance and the requirements for part 121 and part 135 operators of turbine-powered airplanes.

Introduction

Takeoff is one of the most demanding phases of flight, requiring careful planning to ensure that the aircraft can safely clear any obstacles in its path, even in the event of an engine failure. The FAA has established specific certification rules and operational requirements to address these scenarios.

OEI Takeoff Performance and Obstacle Clearance

This video reviews the part 25 takeoff performance certification rules applicable to one-engine-inoperative (OEI) takeoff climb performance and obstacle clearance. The video addresses the OEI takeoff obstacle clearance rules applicable to part 121 and part 135 operators of turbine-powered airplanes and the FAA-approved means by which an operator ensures compliance with these rules.

It also compares these rules to the all-engines-operating IFR takeoff requirements applied to Standard Instrument Departures (SIDs) and Obstacle Departure Procedures (ODPs).

Watch the Video


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Written by Olivier Bonnet who lives and works in Montreal writing a blog that nobody reads 🤪