AERO EXPO

AERO Conferences

Donnerstag, 28. April 2022

Taming the Graveyard Spiral Dr John F. Crawford

28. April 2022
Konferenz-Zentrum Ost, Raum Lissabon

Piloting an aircraft is not an exceedingly difficult skill, but it is very unforgiving of any carelessness or mistake. If control is lost, the result can be a High-Speed Spiral Dive, more ominously called a Graveyard Spiral. In bad visibility, a pilot with no gyroscopic instruments, or unskilled in their use, has little hope of recovering control of a spiralling aircraft.

Most training concentrates on avoiding the spiral in the first place, but I would like to argue here for a different approach: that aerodynamic drag can stabilise the aircraft. I would like to explain why this behaviour is to be expected on physical and aerodynamic grounds, and then present a series of smart-phone videos showing that it really works, in different categories & models.

I would also like to touch on what can be done to introduce the concept to the aviation world. 


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