WHAT IS GRIPEN E?

Björn Johansson, Chief Engineer Gripen E/F

19 March, 2013

PAGE 2

BJÖRN JOHANSSONBackground

> 30 years in the Swedish Airforce as Pilot/Engineer

USAF Test Pilot School Graduate, class 91A

16 Years as Test pilot

Flown Gripen since 1992

Mostly involved in flying qualities, flight control system development and high AoA/Spin testing

First pilot to log >1000 h on Gripen

Chief Engineer with Saab since 2006 responsible for

• Gripen Demo

• Gripen E/F

PAGE 3

SWEDISH AIR FORCE REQUIREMENTS, 2020-2040

Compared to Gripen C/D the Next Generation should have:

Extended Range

Increased Weapons payload/hardpoints

Mil-Std 1760E cl. 2 weapon pylon interface

Upgraded sensor suite

Improved Communication and Fighter Link

Improved Electronic Warfare capability

Quick software update capability

Low Life Cycle Cost

Full Interoperability

PAGE 4

WHICH WAY TO GO?

Start a “white paper” project

+ Technically no set limits/constraints

+ The engineers dream

- More expensive

- Extensive testing expected

Modify Gripen

+ Possible to reuse design and parts

+ Less expensive

+ Gained experience can be utilized

- Design is already optimized for it's former purpose

Decision: Go for a modification, name it Gripen E/F

PAGE 5

GRIPEN DEMONSTRATOR PROGRAM2006-

DEMONSTRATOR AIRCRAFT

AVIONICS SYSTEM RIG DEMONSTRATOR

PAGE 6

GRIPEN DEMONSTRATOR AIRCRAFT 39-7

Extended range• Increased internal fuel• New main landing gear

Increased payload• New pylon stations

Performance• Engine F414G

Communication• SATCOM

New radar• AESA (Active

ElectronicallyScanned Array)

MAW• Missile Approach

Warning system

New Avionic system• New architecture• New Displays• New Computers

IRST

PAGE 7

AVIONICS SYSTEM - RIG DEMONSTRATOR

Use layer and partitions –separate flight criticalfrom mission related

Modifiable architecturebased on COTS

Modern developmentmethods - modelbased development

Open systemarchitecture

Improved data busstructure

Efficient developmentand testing of complexfunctions

Ethernet Switch

‘Commercial’

‘ASL’

Serial Link

Tactical Mission Computer(TMC)

Flight Management Computer(FMC)

GECU

INS, GPS

RALT

OBOGS

B-ECU

SimulatedCSMU (PC)

WTU

BOY

FPU/RAU

FADEC

Gun BOY

FTU/FAU

BOYBOY

Pylon 1L Pylon 2L Pylon 3L Pylon 5L Pylon 4 Pylon 5R Pylon 3R Pylon 2R Pylon 1R

Electronic

Warfare Unit

Avionics System LAN 1 (ASL)

AECU

1553B Network

SimulatedHUD(PC)

Anti-g

ADC-1

ADC-2

RS-422

UCP

RS-422

TAP

IFF

Radar

SMU

1553B

Digitizer (TBD)

AIU

Analog video

LCP

GTA

ACP

Digitizer (TBD)

Digital video

RS-485 / ARINC-429

Emergency Mode

Commercial Ethernet

1553B

WAP

Cockpit switches

(including HOTAS)

Cockpit indicators

Discrete

Input/Output

Discrete I/O

FCS

APECU

ILS, VOR

DME

SSR

HDD HDD HDD

AMU

V/UHF2

V/UHF1

FMC-1

HS1 | 2 | 3 | 4

1553B

FMC-1

HS1 | 2 | 3 | 4

1553B

FMC-2

HS1 | 2 | 3 | 4

1553B

FMC-2

HS1 | 2 | 3 | 4

1553B

“Bus 1”“Bus 2”“Bus 3”“Bus 4”

Avionics System LAN 2 (ASL)

Ethernet Switch

‘Commercial’

‘ASL’

TMC-1

HS1 | 2 | 3 | 4

1553B

TMC-1

HS1 | 2 | 3 | 4

1553B

TMC-2

HS1 | 2 | 3 | 4

1553B

TMC-2

HS1 | 2 | 3 | 4

1553B

VideoProcessing

Module

DTU

MassMemory

Unit(PC)

28V

28V

28V28V

28V115V

FLIR/LDP

Flight Critical ”Flight safety”

Mission Related

PAGE 8

GRIPEN DEMONSTRATOR FINDINGS

Gripen could be modified to meet customer requirements on

• Range

• Payload

• New sensor suite/weapons/electronic countermeasures

Demonstrated possible to install

• Engine with higher thrust

• AESA-radar

• New Avionics system

• More internal fuel

Reduced cost and lead time by 60%

• Thanks to new processes and new supplier strategy

• MBD for airframe design

• MBSE for systems development

Risk reduction for Next Generation development

• Customer requirements could be reached

PAGE 9

GRIPEN E DEVELOPMENT

Increased Thrust

More weapon stations

External Sensors

New Avionics Architecture

Electronic WarfareMAW & MFS

Airframe upgrades

General Systems upgrade

ImprovedCommunication

Target Acquisition

Superior HMI and Decision Support

Sensor Fusion

Increased Range

PAGE 10

GRIPEN E DEVELOPMENT

Increased Thrust

Decision SupportSensor fusion and

Superior HMI

Improved Communication

More weapon stations

Target Acquisition

Airframe upgrades

External Sensors

General Systems upgrade

New Avionics Architecture

Electronic WarfareMAW & MFS

Increased Range

Ethernet Switch

‘Commercial’

‘ASL’

Serial Link

Tactical Mission Computer(TMC)

Flight Management Computer(FMC)

GECU

INS, GPS

RALT

OBOGS

B-ECU

Simulated

CSMU (PC)

WTU

BOY

FPU/RAU

FADEC

Gun BOY

FTU/FAU

BOYBOY

Pylon 1L Pylon 2L Pylon 3L Pylon 5L Pylon 4 Pylon 5R Pylon 3R Pylon 2R Pylon 1R

Electronic

Warfare Unit

Avionics System LAN 1 (ASL)

AECU

1553B Netwo rk

SimulatedHUD(PC)

Anti-g

ADC-1

ADC-2

RS-422

UCP

RS-422

TAP

IFF

Radar

SMU

1553B

Digitizer (TBD)

AIU

Analog video

LCP

GTA

ACP

Digitizer (TBD)

Digital video

RS-485 / ARINC-429

Emergency Mode

Commercial Ethernet

1553B

WAP

Cockpit switches(including HOTAS)

Cockpit indicators

Discrete

Input/Output

Discrete I/O

FCS

APECU

ILS, VOR

DME

SSR

HDD HDD HDD

AMU

V/UHF2

V/UHF1

FMC-1

HS1 | 2 | 3 | 4

1553B

FMC-1

HS1 | 2 | 3 | 4

1553B

FMC-2

HS1 | 2 | 3 | 4

1553B

FMC-2

HS1 | 2 | 3 | 4

1553B

“Bus 1”“Bus 2”“Bus 3”“Bus 4”

Avionics System LAN 2 (ASL )

Ethernet Switch

‘Commercial’

‘ASL’

TMC-1

HS1 | 2 | 3 | 4

1553B

TMC-1

HS1 | 2 | 3 | 4

1553B

TMC-2

HS1 | 2 | 3 | 4

1553B

TMC-2

HS1 | 2 | 3 | 4

1553B

VideoProcessing

Module

DTU

MassMemory

Unit(PC)

28V

28V

28V28V

28V115V

FLIR/LDP

PAGE 11

ENGINEERING CHALLENGES

Designing fighter aircraft

• The fine art of making the right compromises

Pilot Situation Awareness – Information overflowHuman Machine Interface must be optimized

Sensor fusion and Decision Support Spider in the web – reduce pilot workload

Important to work close together with the users

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