Trident TR-1 Trigull
| TR-1 Trigull | |
|---|---|
 |
|
| The first prototype Trigull, C-FTRI | |
| Role | Amphibious aircraft |
| National origin | Canada |
| Manufacturer | Trident Aircraft |
| First flight | 5 August 1973 |
| Status | Prototypes only flown |
| Number built | 3 |
| Developed from | Republic RC-3 Seabee |
The Trident TR-1 Trigull is a Canadian amphibious flying boat that was developed by Trident Aircraft of Burnaby, British Columbia and later Sidney, British Columbia. The aircraft was intended to be supplied as a complete ready-to-fly certified aircraft. The company encountered financial difficulties and only three prototypes were ever built.
The Trigull was designed as an improved and updated Republic RC-3 Seabee. It features a cantilever high-wing, a four to six seat enclosed cabin, retractable tricycle landing gear and a single engine in pusher configuration.
The aircraft is made from aluminum sheet with the forward cabin made from fibreglass. Its 41.8 ft (12.7 m) span wing employs a NACA 23015 R-4 airfoil, has an area of 245.2 sq ft (22.78 m2) and flaps. Standard engines available were initially intended to be the Continental Tiara 6-285 285 hp (213 kW) and Tiara 6-320 320 hp (239 kW) four-stroke powerplants. Later the 300 hp (224 kW) Lycoming IO-540-M1A5D and turbocharged 340 hp (254 kW) Lycoming TIO-540-J2BD were used.
The design incorporates some innovative features, including wing tip floats that retract into the wing tips and provide additional wing area and lift, a nose wheel that retracts into the nose to act as a bumper for mooring on water and drooping ailerons.
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