Process for preventing undesired contact with land or water by low-flying aircraft

US4058710A · kind A · utility

Assignee

• Dornier GmbH · DE

Inventor

• Helmut Altmann · Germering, DE

Key dates

• Filing date: Mar 1, 1976
• Grant date: Nov 15, 1977
• Expiry date: Mar 1, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0646
• WIPO field: Control
• WIPO sector: Instruments

Abstract

This invention relates to a process for preventing undesired contact with land or water by low-flying aircraft which are assigned a minimum altitude and which are provided with instruments for measuring altitude, airspeed, angle of path, and transverse acceleration, PA1 Comprising measuring the rate of descent (H), PA1 transverse acceleration (b.sub.Q), when gravitational acceleration is eliminated, PA1 And altitude (H) to thereby ascertain whether the aircraft is above a given limiting altitude (H.sub.limit) determined from its ability for transverse acceleration and its flight data, PA1 And correcting the aircraft by the maximum feasible transverse acceleration (b.sub.Q max) when for a given measured value of altitude (H), the altitude is below the limiting altitude (H.sub.limit).