Description
The Waltzer is a Pie-Dish manoeuvre that should perform at least 2 complete revolutions whilst continuously aileron rolling. The basic Pie-Dish is a remote circuit flown with the tail boom of the model near vertical with the skids in or out.

Preparation
For those of you who have not yet mastered the Pie-Dish manoeuvre I would suggest beginning by flying some gentle tail in circles in front of yourself. It is quite possible to fly Pie-Dishes in the nose-down attitude but usually the tail-down manoeuvre is the natural choice, as the model will settle into a balanced circle with less difficulty. To enter a Pie-Dish, begin with the model in a stable hover before using a small aileron input to create the desired sideways motion. This is followed with some back cyclic (elevator) to establish the model in the remote circle. As the model begins to move, tail rotor is then used to keep the tail pointing towards the centre of the circle, whilst height is controlled with collective pitch. Following practice of these gentle tail-down ‘skids-out’ circles, turn your attention to developing the inverted or ‘skids-in’ manoeuvre. For your first attempts at these, entry from an inverted hover or a slow moving inverted circuit is to be recommended. I would suggest practice of the ‘skids-in’/ skids-out’ Pie-Dishes so you become especially comfortable with them. The next step is to introduce some half rolls during the manoeuvre to switch between the 2 modes you have learnt, followed by some ‘bursts’ of continuous rolling, before attempting the full rolling manoeuvre.

Possible Problems:
Maintaining consistent height and positions are the most common problems, especially when rolls are introduced. If serious difficulty is experienced, I would suggest introducing only 1 or 2 rolls during each full circle and keeping the roll rate quite slow. In this way you should be able to maintain the model in the Pie-Dish and increase the number of rolls only when you have full control of overall shape, height and position. If a wind is blowing, there is a requirement to add additional cyclic and pitch when moving into wind and reduce these control inputs when downwind. Choosing the optimum roll rate is difficult, but if it is too fast, the manoeuvre will be impossible to fly. If too slow, pronounced pitch inputs will be needed to keep the model moving when the rotor disc is at right angles to the path of motion, possibly resulting in an erratic overall manoeuvre.