Trent 900
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Technical Specifications
- Thrust
- 356,0 kN (80 000 lbf)
- Bypass Ratio
- 8,5:1
- Fan Diameter
- 2,947 m
- Pressure Ratio
- 39,0:1
- SFC
- 0,2850 lb/lbf·h
- Dry Weight
- 6 246 kg
- Length
- 4,953 m
- First Run
- 2004
- In Service
- 2007
Descripción general
The Rolls-Royce Trent 900 es el miembro más grande de la familia de motores Trent y uno de solo dos plantas motrices certificadas para volar en el Airbus A380. With a fan diameter of nearly three metres, está entre los motores turbofán comerciales físicamente más grandes jamás construidos. Its three-spool architecture es un sello distintivo de todos los motores Trent, permitiendo la optimización independiente del fan, el compresor intermedio y el núcleo de alta presión.
The Trent 900 competes exclusively with the Engine Alliance GP7200 on the A380 platform. Airlines including Emirates, Lufthansa, and Singapore Airlines have selected the Trent 900, while others such as Air France chose the GP7200. El motor entró en servicio con Singapore Airlines in October 2007 en el primer vuelo A380 comercial del mundo.
Especificaciones técnicas
| Especificación | Valor |
|---|---|
| Empuje (máx.) | 356 kN / 80,000 lbf |
| Relación de derivación | 8.5:1 |
| Diámetro del fan | 2.947 m (116.0 in) |
| Relación de presión total | 39:1 |
| Peso en seco | 6,246 kg |
| Longitud | 4.953 m |
| SFC (crucero) | 0.2850 lb/(lbf·h) |
| Primera prueba | 2004 |
| En servicio | 2007 |
Variantes
- Trent 970/972: Standard production variants for the A380-800, rated at 70,000–80,000 lbf.
- Trent 970B/972B: Enhanced variants with improved fuel consumption and revised nacelle integration.
- Trent 977: Higher-thrust variant for the A380 freighter, which was cancelled before production.
Aplicaciones en aeronaves
- Airbus A380-800 — única aplicación
Historia del desarrollo
Rolls-Royce launched the Trent 900 programme in 2000 to compete for the A3XX (later A380) contract. The engine first ran in March 2004, and EASA certification was achieved in 2006. The defining safety event in the Trent 900's history was Qantas Flight 32 on 4 November 2010, when a Trent 972B suffered an uncontained intermediate-pressure turbine disc failure shortly after departure from Singapore. Shrapnel penetrated the wing and disabled multiple aircraft systems. All 469 people on board survived. The investigation by the Australian Transport Safety Bureau identified a fatigue crack caused by a manufacturing defect in an oil feed stub pipe. Rolls-Royce issued a series of airworthiness directives, modified the oil system design, and instituted enhanced inspection regimes. The Trent 900 fleet returned to full service and has accumulated a strong safety record since.