Pilot Institute

JUNE 19, 2025

On runways used by international commercial flights, a threshold must be present (we’ll look into that later in this article). Visual runways feature aiming point markings (described later on in this article) if the runway is 4,000ft or longer or used by jet aircraft. A runway threshold identifies the beginning of a runway.

Runway

Pilot Institute

OCTOBER 17, 2024

Using the VASI is crucial as it gives you safe obstruction clearance within 10 degrees of either side of the runway centerline and around four nautical miles from the runway threshold. nautical miles from the runway threshold. VASI systems also are typically cheaper to install and maintain than more advanced systems like PAPI.

Runway

Pilot Institute

SEPTEMBER 24, 2024

You might have heard pilots talking about the Instrument Landing Systems (ILS). The ILS is a type of approach pilots use to land. The aerials are in a position that provides a threshold crossing height of 50ft. It consists of lights that start at the landing threshold and extend into the approach area.

Knot