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Copyright 2018, Lockheed Martin Corporation. All rights reserved.

Lockheed Martin:

Propulsion-Airframe Integration

Challenges30 May 2018

Justine Li

Propulsion-Airframe Integration Technical

Interchange Meeting (PAI-TIM)

Cleveland, OH

2Copyright 2018, Lockheed Martin Corporation. All rights reserved.

Preface

Advanced vehicle design with increasing capability depends

on limited, relevant reliable data for increasingly complex

systems

Lockheed Martin leverages experience in air vehicle design

and integration to improve capability

P-80 F-104 D-21B SR-71

3Copyright 2018, Lockheed Martin Corporation. All rights reserved.

▲

Historical Perspective

(estimated)

HTV-2 (2010)

LM Skunk Works builds upon 75 years of air vehicle design

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Major Challenges of Advanced Vehicle Design

Air Vehicle Capability• Speed, Altitude

• Range, Endurance

• Payload

Propulsion System• Engine

• Inlet

• Nozzle

Air Vehicle Systems• Structures, Loads

• Materials

• Thermal management

• Fuel, Power

• Lift, Drag

Increased air vehicle capability increases system dependencies

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SR-71 Blackbird (M3+)

• Pratt & Whitney J-58

Propulsion System and Integration

F-104 Starfighter (M2+)

• General Electric J79

Courtesy Surber & Tinapple, 2012

Courtesy Surber & Tinapple, 2012

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SR-71 Blackbird (M3+)

• Titanium and composite

construction

F-104 Starfighter (M2+)

• Conventional

all-aluminum construction

Air Vehicle Systems: Structures, Materials

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SR-71 Blackbird (M3+)

• Thermal Management:

Bypass air & Fuel heat

exchanger

• Power generation:

two 60 kVA generators

• INS & ANS,TACAN

• UHF radio

• Optical/IR systems

• ELINT & ECM

• ASARS-1

F-104 Starfighter (M2+)

• Thermal Management:

Bypass air

• Power generation:

two 20 kVA generators

• INS,TACAN

• UHF radio

Air Vehicle Systems: Subsystems

NAS-14V2

Astroinertial

Navigation System

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Air Vehicle Capability

F-104

SR-71

Advanced vehicle capability more sensitive to system complexity

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Challenges to Address

Collaboration will advance the state of the art

Near term challenges

• High temperature apertures

• High temperature actuators

• Additive manufacturing

Long term challenges

• High Mach turbine engines

• High temperature seals

• Regenerative power generation

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Conclusion

Future air vehicle capabilities depend on increased

propulsion, other vehicle discipline advancements, and

understanding their interactions

Lockheed Martin is positioned to extend the capability of

high-speed future aircraft

F-104 SR-71 Future Aircraft

1943 2018