Results of MLS procedural interception flight trials performed at Manchester Airport

In July, 1988, flight trials have been performed on the newly installed MLS equipment at Manchester Airport (UK), using one of the laboratory aircraft of NLR, a Fairchild Metro II with programmable avionics systems including a basic MLS receiver as an "Avionics Research Testbed". The aim of the tests was to prove that aircraft with basic IFR...

Flight simulator experiments concerning take-off visibility minima

The Working Group on All-Weather Operations of the European Civil Aviation Conference (ECAC) has initiated a study concerning the factors influencing the minium required visibility at take-off. In two special checkout sessions on the KLM Boeing 747 flight simulator, the experimental conditions have been defined for an investigation directed at...

Failures in advanced flight control systems of future transport aircraft

Future transport aircraft will be different from to-day's in that they will be designed to be statically neutrally stable or even unstable to improve economics, while the stability will be provided by means of a fly-by-wire flight control system. Since this system will be flight critical it is necessary to develop a philosophy on the treatment...

Low-speed handling qualities of advanced transport aircraft; A comparison of ground-based and in-flight simulator experiments

Determination of low-speed longitudinal manoeuvring criteria for transport aircraft with advanced flight control systems

The application of Active Control Technology concepts and in particular the Relaxed Static Stability principle in certain categories of future transport aircraft will lead to the introduction of primary flight control systems incorporating full-time stability augmentation. For this category of transport aircraft adequate handling quality...

The need of stick force stability for attitude-stabilized aircraft. Part II

A description is given of flight tests related to the effect of various levels of (artificial) positive stick force stability on the longitudinal controllability in the landing approach of an attitudestabilized aircraft. Approach performance and pilot commentary of 60 ILS/VASIS approaches flown with a twin-engined jet transport have been...

The need of stick force stability for attitude-stabilized aircraft. Part 1

After introductory background information on the landing approach piloting task and some arguments for expanding the knowledge on handling quality criteria for certain advanced transport designs, results are given of flight tests related to the effect of positive stick force stability on the longitudinal controllability in the landing approach...

Human pilot describing function, remnant and associated information for pitch attitude control: in flight and ground-based tracking experiments

Servo-analysis techniques, using mathematical models of human control behaviour, are effectively used in studies of the system formed by the human pilot and the flight control system/aircraft combination. Measurement and data analysis techniques for the determination of pilot describing function, remnant and associated information needed in...