Falcon Invoice Discounting: Unlock Your Business Potential
Trent
1. The Rolls-Royce Trent Engine 5 October 2000 Michael Cervenka Technical Assistant to Director - Engineering & Technology
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3. Newton’s 3rd Law Thrust = Mass x Velocity (MV) MV Equilibrium Reaction Action
4. Propeller versus Jet Propulsion Propeller - moves LARGE MASS of air at low velocity Jet - moves small mass of gas at HIGH VELOCITY Mv aircraft mV jet Thrust = M(v aircraft - v jet ) mV aircraft Thrust = m(V aircraft - V jet ) Mv jet
16. New Product Introduction Process Stage 1: Preliminary Concept Definition Stage 2: Full Concept Definition Stage 3: Product Realisation Stage 4: Production Stage 5: Customer Support Capability Acquisition Product definition stages Preliminary concept defined for planning purposes Full concept defined, product launched Product developed, verified and approved Product produced and delivered to customer Product used by customer
17. New Project Planning Process BUSINESS MODEL Units sold Unit Cost Selling Price Concessions Sales Costs Development Costs Guarantee Payments Spares Turn Spares Price ENGINEERING MODEL Safety Unit Cost Weight Noise Emissions Geometry Reliability Operability Performance MARKETING MODEL Market Size Selling Price Concessions Operating Costs Payload Range Maintenance Costs Fuel Burn Commonality
18. 102 Million Hours of Service RB211 & Trent operating hours August 2000 -22B 26.7 million hours -524 48.5 million hours -535 25.4 million hours Trent 2.2 million hours 4260 engines ordered 3592 engines delivered 103 customers currently flying with RB211 or Trent engines Million hours 10 20 30 40 50 60 70 80 90 100 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 Entry into service -22 0 -524 -524D -535C -535E4 -524G -524H Trent 700 Trent 800 2000
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20. Evolution of Trent Family Fan diameter - in. 110 97.5 86.3 Trent 800 Trent 8104 Trent 900 Trent 700 Trent 500 Trent 600 RB211-524G/H-T 60,000lb 72,000lb 95,000lb 104,000lb 56,000lb 65,000lb 80,000lb Scaled core Scaled core Boeing 777 Airbus A3XX Airbus A330 Airbus A340 Boeing 767 Boeing 747
21. Trent 700 & 800 Trent 700 Trent 800 Area of significant commonality Area of main geometric change Fan diameter increased to 2.8m (110.3in.) Five-stage LP turbine Single crystal HPT Single Crystal Uncooled IP turbine blade Fan diameter 2.47m (97.4in.) Four-stage LP turbine Phase 5 low emissions combustor 8 Stage IPC 3 Variables
22. Trent 500 Trent 500 Trent 700 Scaled IP & HP compressor 3D Aerodynamics Scaled combustor with tiled cooling HP & IP turbines have increased blade speeds High lift LP turbine blading
34. Electric Engine Concepts Air for pressurisation/cabin conditioning supplied by dedicated system All engine accessories electrically driven Generator on fan shaft provides power to airframe under both normal and emergency conditions Internal active magnetic bearings and motor/generators replace conventional bearings, oil system and gearboxes (typical all shafts) Pylon/aircraft mounted engine systems controller connected to engine via digital highway New Engine Architecture with reduced parts count, weight, advanced cooling, aerodynamics and lifing
35. Compressor Weight Reduction Conventional disk & blades Blisk - up to 30% weight saving Bling - Ti MMC - up to 70% weight saving
36. Metal Matrix Composites Titanium Metal Matrix Composite Titanium Alloy Nickel Superalloy Specific Strength Temperature (degrees C)
38. Future Aircraft Configurations Blended wing aircraft may offer up to 30% reduction in fuel consumption - 40% if combined with electric engine concepts Flying wing Large diameter duct Gas generator Contra-rotating turbine Contra-rotating fan