The calculations of this investigation showed that critical flutter speed goes down as altitude
increases. In case of control surface flutter the decrease may exceed Skm/h for each …

Sailplane Stiffness Measurements Page 1 Sailplane Stiffness Measurements By R.
ALEKsANDRowicz and W. LUCANEK Department of Flight Mechanics, Faculty of Aviation …

The practical application of the flutter analysis during the design of the sailplane is
presented. Preliminary calculations are done in parallel with technical documentation …

Part I. Possio's Derivative Theory for an Infinite Aerofoil Moving at Subsonic Speeds. The
derivative theory due to C. Possio for an infinite aerofoil moving at subsonic speeds is …

Since the time when soaring in thermals was dis covered, circling flight has been one of the
main attitudes in soaring. Even in the long distance flight, fifty per cent of the time is spent in …

The gust load determination in Certification Specifications for Sailplanes and Powered
Sailplanes CS-22 and OSTIV Airworthiness Standards for Sailplanes and Powered …

Modem sailplanes have very high glide ratios, and due to that they are able to tly very long
distances without a power plant, loosing proportionally small height at the same time. This …

The first documented flutter investigation took place about 1915, but it was not until 1935 that
the theory of aeroplane flutter was properly understood. By 1950, routine flutter calculations …

This book is concerned with the sport of soaring, mainly with the mathematical basis of
sailplane design and operation. It does not tell the beginner how to fly, but it will give an …

In this report an analysis is made of the gust alleviation factors given in existing
airworthiness requirements for sailplanes. It is concluded that the alleviation factor formula …