Families of figures
Aerobatic figures were initially divided into nine families, the first eight of which provided the 'base' figures onto which the aileron rolls of family-9 could be superimposed to create composite figures. Family-4 originally provided all of the possible variations of spins, but the later adoption of a wider range of base figures that could all have spins added to them led to this family becoming unused and the spin elements are now included in roll family-9. A logical approach to determining the difficulty coefficient of the whole figure was also introduced.
The Aresti Catalogue (Condensed)
The catalogue of figures that we use today is developed in response to updates and additions approved each year by the CIVA plenary, and now the Aresti Catalogue (Condensed) is produced and distributed solely by Aresti System S.L. in Spain.
CIVA also runs an Aresti Committee in conjunction with representatives of the Aresti family, to ensure the smooth adoption of new ideas and figure elements that underpin the increasing range of international championship categories that CIVA supports.
The Aresti Catalogue (Condensed) is available from Aresti System S.L. in both Power and Glider versions, along with alternatives that are used by the aerobatic modelling community and others.