Aggradation is the term used in geology for the increase in land elevation due to the deposition of sediment. Aggradation occurs in areas in which the supply of sediment is greater than the amount of material that the system is able to transport. The mass balance between sediment being transported and sediment in the bed is described by the Exner equation. Typical aggradational environments include lowland alluvial rivers, river deltas, and alluvial fans.
The CAMS 30E was a two-seat flying boat trainer built in France in the early 1920s. It was the first aircraft designed for CAMS by Raffaele Conflenti after he had been recruited by the company from his previous job at Società Idrovolanti Alta Italia (SIAI). It was a conventional design for the era featuring a two-bay equal-span unstaggered biplane wing cellule. The prototype was exhibited at the 1922 Salon de l'Aéronautique and evaluated the following year by the Aéronautique Maritime.