new developments for military jet engines

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© 2007 Rolls-Royce plc The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc. This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls- Royce plc or any of its subsidiary or associated companies. "New Developments for Military Jet Engines" The 7th Israeli Symposium on Jet Engines Technion - Israel Institute of Technology, Haifa, Israel 6 th November 2008 Lars Seumenicht, Rolls-Royce Deutschland, Germany © 2008 Rolls-Royce Deutschland Ltd & Co KG The information in this document is the property of Rolls-Royce Deutschland and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce Deutschland. This information is given in good faith based upon the latest information available to Rolls-Royce Deutschland, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce Deutschland or any of its subsidiary or associated companies.

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Page 1: New Developments for Military Jet Engines

© 2007 Rolls-Royce plc

The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for

any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc.

This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is

given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-

Royce plc or any of its subsidiary or associated companies.

"New Developments for Military Jet Engines"

The 7th Israeli Symposium on Jet Engines

Technion - Israel Institute of Technology, Haifa, Israel

6th November 2008

Lars Seumenicht, Rolls-Royce Deutschland, Germany

© 2008 Rolls-Royce Deutschland Ltd & Co KG

The information in this document is the property of Rolls-Royce Deutschland and may not be copied or communicated to a third

party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce

Deutschland.

This information is given in good faith based upon the latest information available to Rolls-Royce Deutschland, no warranty or

representation is given concerning such information, which must not be taken as establishing any contractual or other

commitment binding upon Rolls-Royce Deutschland or any of its subsidiary or associated companies.

Page 2: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Future Market trends – Stealth

Page 3: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Our four markets

Defence AerospaceCivil Aerospace Marine Energy

Wide-bodied jets

Narrow-bodied jets

Corporate & Regional

Military aircraft

Helicopters

Commercial

Naval

Oil & Gas

Power generation

Power systems for:

Page 4: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

A strong position in all key defence market sectors

Combat, STOVL, light-attack, fast jet trainer, Transport, Helicopters, Maritime reconnaissance, Aerial surveillance

Page 5: New Developments for Military Jet Engines

A competitive portfolio

12

Bristol, UK

Indianapolis, USA

Dahlewitz,Germany

Page 6: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

World-leading state-o-the-art technology

Highest performance

Power for multi-role capability

Exceptional thrust-to-weight ratio

Highest operational availability

Excellent reliability levels

Low cost of ownership

Built in growth potential

Current Requirements

Page 7: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Today’s Leader: EJ200 and F136

Critical to fulfil Mission Requirements

Minimum Time Intercept

Long Loiter Air Superiority

Excellent Maneuverability

Excellent Performance

Supercruise Capability

Excellent Thrust:Weight Ratio

Growth Potential

Low Cost of Ownership

Improved SFC

High Component Life

Low Number of Parts

Excellent Reliability & Maintainability

Page 8: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Next Generation – What are the key drivers?

The nature of military conflict is changing

Longer lower intensity conflicts

Homeland security

Introduction of “un-manned platforms”

Information networking / surveillance / warfare

Standoff = High speed, precision strike

Changing product requirements

Higher electrical power off-take

Survivability / Stealth

Affordability - Unit cost and Through-life Cost

Persistence

Maintainability

Continuous emphasis upon reducing fuel consumption

Technology acquisition needs new approaches

Commercial-off-the-Shelve

Propulsion – a commodity?

Global Hawk

UCAV

JSF Typhoon

GlobalHawk

Page 9: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Typical UAV Power System requirement prioritiesMALE UCAV

(Low signature, subsonic)

HALE

Requirement Typical relative priority

High thrust/weight Medium Medium Low

Low fuel consumption Medium Medium High

Low signatures Low High Low

High power off-take Low High High

Low unit cost High Medium Medium

High reliability Medium High High

Storage capability Low High Low

Autonomous ops High High High

Prognostic EHM High High High

Long life Low Medium High

© BAE Systems © BAE Systems

Page 10: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Electrical off-take requirements increase

Surveillance systems

Directed energy weapons

Increasing electrical control systems

Power Requirements: Manned & Unmanned Vehicles

= Fluctuating thrust/electrical power demand

Page 11: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Solution: Integrated Power System

Page 12: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Requirement for “Low Signature” (1)

© BAE Systems

Platform span determined

by platform length

Platform length determined by

powerplant, intake and exhaust

© BAE Systems

Platform cross-section determined

by engine diameter

Page 13: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Requirement for “Low Signature” (2)

Plume

• Temperature

• Extent

Exhaust cavity

• Temperature

• Obscuration

Contrast

Vehicle structure

• Skin temperature

• Surface properties

Propulsion dominates IR Signature in all aspects

Page 14: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Solution: Installation technology

Engine Mounted Obscuration

Vanes (EMOVs) in front of fan face

Novel exhaust systems

UCAV conceptual design

Scarfed & raked rectangular

nozzle

Blockers to shield hot turbine

Extensive use of cooling and

radar absorbent materials

Radar absorbent material

Raked vane leading edges

Page 15: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

UCAV propulsion technology

BPR < 1

Military combat engine• Small fan diameter

• High thrust-to-weight

• Low BPR

• Higher installed SFC

• Hot exhaust

Future UCAV• Variable BPR, e.g. 0.5 – 3

• Low installed SFC

• Small fan diameter

• Cool exhaust

• Moderate/high thrust-to-weight

Small highly efficient,

high temperature core

Compact high efficiency fan,

compatible with LO intake

Variable BPR to provide both high take-off thrust

and low cruise SFC & exhaust temperature

Commercial turbofan• Low installed SFC

• High bypass ratio

• Cool exhaust

• Large fan diameter

• Low thrust-to-weight

BPR = 4 - >10

Page 16: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Outlook: Hybrid propulsion for HALE UAV

Potential future HALE hybrid

gas turbine & electrical propulsion

• Gas turbine for high power density

during take-off & climb

• Fuel cell for high efficient power

generation during cruise

Page 17: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Engine Health Monitoring

Customer Ops Center

Flight

Log Sheets

Internet, e-mail, Phone

Regional Customer Manager

or Field Service RepRepair Depot

Sense

Transfer

Data Station

Ground

Based information

e.g. Oil Analysis

Analyse

Act

• Condition monitoring

• Data processing & storage

• Data access / reports

• Forecasting service

DS&S Engine Health Centre

Supply Chain

Maximum Customer benefit relies

on the efficient operation of the

complete system

Acquire

Page 18: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Defence Aerospace Operations Centre

Established as a key enabler for the delivery of service

contracts

Built upon experience in the Rolls-Royce Civil Sector in

the delivery of high value competitive service streams

The Operations Centre delivers value by:

Providing rapid containment actions to offset

disruption caused by unforeseen operational

circumstances

Maintaining a proactive view and mitigating problems

before they become operationally disruptive

The Operations Centre is open 24/7, 365 days of the

year to accommodate a wide and varied DA customer

base:

160 Customers

9000 Engines

Page 19: New Developments for Military Jet Engines

Copyright 2007 by Rolls-Royce plc.

Conclusions

Toady’s military engines are dedicated to their applications – future

systems will again require bespoke technology acquisition

System integration – within propulsion system and with platform –

becomes increasingly important

Advanced Services (incl. Engine Health Monitoring) are a pre-requisite

towards more autonomous operations

Multi-national co-operations will increase further

Page 20: New Developments for Military Jet Engines

© 2007 Rolls-Royce plc

The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for

any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc.

This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is

given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-

Royce plc or any of its subsidiary or associated companies.

Thank you

Any questions?

© 2008 Rolls-Royce Deutschland Ltd & Co KG

The information in this document is the property of Rolls-Royce Deutschland and may not be copied or communicated to a third

party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce

Deutschland.

This information is given in good faith based upon the latest information available to Rolls-Royce Deutschland, no warranty or

representation is given concerning such information, which must not be taken as establishing any contractual or other

commitment binding upon Rolls-Royce Deutschland or any of its subsidiary or associated companies.