First Limit Indicators (FLI) or Power Situation Indicators (PSI) are displays in glass-cockpit helicopters which bring together all the engine power parameters into one simple display. These displays can dramatically lower the workload of a pilot, giving a single visual indication of the power state of the aircraft relative to its limits. FLI and PSI…
The UK CAA have developed a lighting scheme for hospital helipads in CAP 1264 which is based on the standard for offshore helicopter landing site marking. This offshore scheme is published in CAP 437 and is based on hard won lessons in safely operating helicopters to offshore helidecks (see here) and the principles outlined in…
This is one for the helicopter pilots and engineers in my network. I thought I knew why the tail rotor blades pitched when they flapped and what delta 3 hinges were all about on helicopters. Right up to the point I stopped to look carefully at the tail rotor on the Bell 429 I currently…
For all of my flying career I have been given a standard explanation about how an ILS works. In the military it was described in accordance with RAF Publication AP3456 and in civilian life it was described in the ATPL exams and associated training material. With some minor differences, it is described as a pair…