SIAI-MARCHETTI PN 333 “RIVIERA”€

1962’€“66

Gemini Sparkle

Key Takeaways:

  • The Riviera is a four-seater amphibious aircraft, initially developed by Nardi in 1952, with Siai-Marchetti producing 30 units between 1960 and 1966.
  • It is powered by a 250-hp Continental engine in a unique pusher-prop configuration, featuring retractable landing gear for water operations and excellent forward visibility.
  • Key performance indicators include a top speed of 177 mph, a cruise speed of 164 mph, and a range of 560 miles.
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STANDARD DATA: Seats 4. Gross wt. 3,270. Empty wt. 2,300. Fuel capacity 37-64. Engine 250-hp Continental.
PERFORMANCE: Top mph 177. Cruise mph 164. Stall mph 68. Initial climb rate 1,220. Range 560. Ceiling 18,500. Ground takeoff run (50′) 1,400. Water takeoff run 1,565. Ground landing distance (50′) 1,100. Water landing distance 625.

Originally developed by the Nardi Company, the Riviera amphibian first flew in December 1952. Siai-Marchetti purchased manufacturing rights from Nardi and placed the four-seater into production in 1960. A New Jersey firm handled all United States sales, and the Rivieras were assembled by Southwest Airmotive. The four-seater is powered by a 250-hp six-cylinder Continental engine mounted on top of the fuselage behind the cabin in a pusher-prop arrangement. For water use, the landing gear folds up into the fuselage behind the cabin, and the small nose gear is hidden behind nose gear doors. Forward visibility through a large bubblenose windshield is excellent. Production of the Riviera ended in early 1966 after 30 airplanes had been built.

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