When a route between London and Australia was set up in 1947, the journey required seven stops and lasted a total of four days – nicknamed the ‘Kangaroo Route’ due [...]

Have you ever been on a flight and looked around at the empty seats, and thought what the carbon cost per person might be? Figure 1: Passenger on an empty [...]

The International Civil Aviation Organisation (ICAO) hosted a symposium on December 8-10, 2021, as a consultation with regard to their proposed new Obstacle Limitation Surfaces (OLS), which can be found [...]

Mobile phone signals can interfere with aircraft navigational and landing guidance systems. In 2012, flight attendants asked passenger to completely switch off phones before departure; however, in 2013, the Federal [...]

The UK Department for Transport (DfT) has released an update to the 2010 Public Safety Zone (PSZ) circular [1] (now referred to as a ‘policy’). The update [2] has simplified [...]

Background Declared distances are specific lengths of runway that are published for aircraft operations, specifically when taking off or landing, and are defined for pilots to understand their allowable take-off [...]

Background Buildings and structures can present a collision risk to aircraft using particular airports. Airports and airfields are often consulted regarding developments in their vicinity. Aerodrome Safeguarding Assessments can be [...]

When using digital elevation models data we often come up against terms like DEM, DTM, and DSM. Often they can be confusing and also misinterpreted to mean the same thing. [...]

Developments worldwide can receive objections from numerous sources, including Air Navigation Service Providers (ANSPs). Often such objections are related to radar interference, however issues can also be raised due to [...]

By S.C.Watson (Mike’s brother) Ever since mankind dragged their collective backsides out of the primordial soup and gazed up at the sky, the dream of someday flying through the air [...]