A new chapter 14 has been added to report KD 437. The title of this chapter is: “Adding of a centrifugal weight to a blade”. As the aerodynamic moment is rather small, a larger pitch moment can be obtained by adding a centrifugal weight. This chapter describes the influence of the weight on the pitch moment depending on the position of the weight.
Report KD 723 is added to the menu KD-reports. The title of this report is: “Ideas about an 18-pole, 2-phase permanent magnet generator using the housing of a 6-pole asynchronous motor frame size 100 for driving a 0.55 kW motor of a centrifugal pump”. Chapter 6 describes an alternative 6-pole armature for which the standard 6-pole winding can be used.