Articles by Harry Watson

Electromagnetic waves perform an increasingly important function in our everyday lives. We have always relied upon the visible light part of the electromagnetic spectrum to look at what is in [...]

The expansion of cities worldwide has meant that many of these settlements are encroaching on the land around their respective airports. This urban sprawl must be carefully considered by those [...]

What is an Instrument Flight Procedure? An Instrument Flight Procedure (IFP) is a set of instructions regarding navigation around aerodromes. There are two basic types, one using precision instruments and [...]

The European Guidance Material on Managing Building Restricted Areas [1], referred to in short as ICAO Eur Doc 015, provides a methodology for determining whether proposed development is likely to [...]

Interference to Communications, Navigation, and Surveillance (CNS) equipment is a consideration when planning new developments near airports. It is of great importance to ensure that ground based equipment – which [...]

A new edition of the International Civil Aviation Organisation (ICAO) state letter [1] was released earlier this year, with some changes made to the new obstacle limitation surfaces, expected in [...]

Development in the vicinity of an airport is restricted in part using invisible surfaces called Obstacle Limitation Surfaces (OLS) which slope upwards and outwards from it. The surfaces were first [...]

The International Civil Aviation Organization (ICAO) has proposed new obstacle limitation surfaces (OLS), with compliance required from November 21st 2030 [2]. In this instalment of Pager Power’s article series about [...]

The International Civil Aviation Organization (ICAO) has proposed new Obstacle Limitation Surfaces (OLS) which are expected to be brought into force from November 2028. In this edition we will explore [...]

The International Civil Aviation Organization (ICAO) has proposed new Obstacle Limitation Surfaces (OLS) which are expected to be brought into force from November 2028. In this edition we will explore [...]





