The Nardi FN.333 Riviera, later the SIAI-Marchetti FN.333 Riviera, is an Italian luxury touring amphibian flying boat designed and developed by Fratelli Nardi in the 1950s and produced in small numbers. Lacking resources, Nardi sold the manufacturing rights for the Riviera to the much larger SIAI-Marchetti in March 1959.
This deal resulted in the first series of 10 production Rivieras being manufactured at the SIAI-Marchetti factory in Sesto Calende, Varese near Milano, Italy. The first S.I.A.I.-Marchetti manufactured Riviera was completed in February 1962, and by January 1963 the company had delivered four of the aircraft to customers in the USA. The SIAI-Marchetti version had improved power provided by a 250 hp Continental IO-470-P engine, equipped with fuel injection, and manufactured for a pusher-style aircraft. In 1961 the Riviera became available in the United States, the second Riviera in the US was N627 and is now operated by the Golden Age Flight Museum. This aircraft, already complete and ready to fly, was placed in the cargo hold of a ship and transported directly from Italy, arriving in Newark, New Jersey. Excluding this example, most Rivieras were shipped partially assembled, and were then completed at Southwest Airmotive before delivery to their owners.
Most of the 26 built by SIAI-Marchetti were sold to customers in the United States, but examples were also sold to Australia, Norway and Sweden.
There are currently four aircraft on the FAA registration in the US and ours is the only airworthy example believed to be flying.