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For 60 years, the Delta family of launch vehicles has achieved unparalleled success in provid-ing access to space for our Department of Defense (DOD), NASA and commercial custom-ers. From the earliest Delta rockets to the industry work-horse Delta II, continual upgrades and improvements have led to the Delta IV Heavy, the most reliable, highest-per-forming rocket in the world with a proven, 100 percent success record. Delta IV not only provides demonstrated reliabili-ty with 100 percent mission success for our nation’s most critical payloads, it also boasts a highly capable second stage that enables ULA to deliver unmatched performance. The Delta IV Heavy first stage consists of three common booster cores. The Delta cryo-genic second stage and a 5-m-diameter payload fairing complete the stack. With a commitment to mission success, the Delta IV Heavy continues its legacy of launch-ing our nation’s mission-critical national security payloads.

DELTA IVVULCAN CENTAURAn evolution of the flight-proven, highly successful Atlas V and Delta IV rockets, the Vulcan Centaur rocket introduces a balance of new technologies and innovative features to ensure a reliable and a�ordable space launch service. Leveraging proven processes, technol-ogy and expertise, Vulcan Centaur provides the highest value launch service with optimal performance to meet the full range of mission require-ments. Vulcan Centaur consists of a single booster stage, the high-energy Centaur upper stage, and a 5-meter-di-ameter payload fairing. For additional lift-o� power, up to six solid rocket boosters can be added to the Vulcan Centaur rocket.

More capabilities in space mean more capabilities on Earth. By making launch more a�ordable, Vulcan Centaur opens up new opportunities for space capabil-ities, o�ering unprecedented flexibility in a single system. From low-Earth orbit to Pluto, the single-core Vulcan Centaur does it all.

Since 1957, the Atlas rocket has been an integral part of the United States’ space program, supporting national defense missions, launching Mercury astronauts to orbit and sending spacecraft to the farthest reaches of the solar system. Over the years, the Atlas booster has undergone a series of continuous improvements, culminating in the current Atlas V rocket with its modular design approach to meet specific customer requirements. All Atlas V launch vehicles consist of a common core booster first stage, a Centaur second stage and either a 4-m diameter or a 5-m-diameter payload fairing. To accommodate missions requiring additional thrust at lifto�, one to three solid rocket boosters (SRBs) can be added to the Atlas V 4-m vehicle while the Atlas V 5-m vehicle can support up to five SRBs. Flexibility, reliability and 100 percent mission success are the hallmarks of the Atlas V system, making it the launch vehicle of choice for the full range of customer requirements.

ATLAS V

ROCKETRUNDOWNA Fleet Overview

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Copyright © 2018 United Launch Alliance, LLC. All Rights Reserved.Product information as of 4/18. For mission-specific information, please refer to the Atlas V, Delta IV and Vulcan Centaur User’s Guides available at www.ulalaunch.com or contact your ULA representative.

Vulcan Centaur(2 Solids)

Atlas V552

Atlas V541

Atlas V531

Atlas V521

Atlas V511

Atlas V501

Atlas VStarliner

Atlas V421

Atlas V411

Atlas V401

Vulcan Centaur(6 Solids)

Vulcan CentaurHeavy

Delta IVHeavy

0

7.6 m/25 ft

AFTVIEWS

15.2 m/50 ft

22.9 m/75 ft

38.1 m/125 ft

45.7 m/150 ft

30.5 m/100 ft

53.3 m/175 ft

61.0 m/200 ft

68.6 m/225 ft

71.6 m/235 ft

GEO

GTO

LEO-REF

LEO-ISS

LEO-POLAR

PERFORMANCE (kg/lb)

GEO (Geosynchronous Earth Orbit) = 35,786 km circular at 0 deg | GTO (Geosynchronous Transfer Orbit) = 35,786 km x 185 km at 27.0 deg | LEO-Reference (Low Earth Orbit-Reference) = 200 km circular at 28.7 deg | LEO-ISS (Low Earth Orbit-International Space Station) = 407 km circular at 51.6 deg | LEO-Polar (Low Earth Orbit-Polar) = 200 km circular at 90 deg

N/A

4,750/10,470

9,800/21,600

8,910/19,640

8,080/17,820

1,935/4,270

5,950/13,110

12,030/26,530

10,670/23,530

9,980/22,020

2,480/5,460

6,890/15,180

13,600/29,980

12,060/26,600

11,140/24,560

2,820/6,210

7,700/16,970

15,260/33,660

13,250/29,220

12,130/26,750

N/A

N/A

N/A

13,250/29,220

N/A

N/A

3,780/8,330

8,210/18,100

7,540/16,630

6,770/14,930

N/A

5,250/11,570

11,000/24,250

10,160/22,410

9,060/19,990

2,540/5,610

6,480/14,280

13,500/29,760

12,510/27,590

11,160/24,610

3,080/6,800

7,450/16,420

15,530/34,250

14,480/31,920

12,880/28,410

3,530/7,800

8,290/18,270

17,410/38,400

16,290/35,920

14,480/31,940

3,850/8,500

8,900/19,620

18,850/41,570

17,720/39,080

15,760/34,750

N/A

N/A

21,000/46,300

19,730/43,500

18,050/39,800

2,050/4,500

7,400/16,400

17,800/39,200

15,300/33,800

14,300/31,500

6,000/13,200

13,300/29,300

27,500/60,300

24,200/53,400

22,300/49,200

7,200/15,900

16,300/35,900

34,900/76,900

31,400/69,300

27,900/61,500

6,580/14,500

14,210/31,330

28,370/62,540

25,980/57,280

23,560/51,950

Atlas V551

Atlas V431

ATLAS V DELTA IV HEAVY VULCAN CENTAURMulti-Launch Shown

5

12

6

11

14

16

15

21

23

13

17

18

19

22

2

7

8

4

3

1

9

10

8

17

18

19

20

21

9

15

16

22

23

24

26

25

3

6

5

4

11

10

13

12

7

1

2

14

11

12

4

3

5

66

67

68

69

10

25

1414

1415

1416

17

2820

2821

18

11

1212

1213

1919

1922

1923

24

20

Atlas V 551Payload Fairing Diameter (Meters)Number of Solid Rocket Boosters (0-5)Number of Centaur Engines (1-2)

NAMING CONVENTION

Payload FairingAcoustic BlanketsSpacecraftPayload Attach FittingSecond-Stage Fuel (LH2) TankSecond-Stage IntertankTruss AssemblyHigh Pressure Helium BottleSecond-Stage Oxidizer (LO2) TankStrap-on Nosecone Second-Stage Equipment ShelfSecond-Stage Engine (RL10)Interstage AdapterStrap-on Strut AssemblyFirst-Stage Oxidizer (LO2) TankAnti-slosh Ba�le CenterbodyFirst-Stage Fuel (LH2) TankFirst-Stage Oxidizer (LO2)FeedlinePort Strap-on CommonBooster CoreCenter Common Booster CoreStarboard Strap-on Common Booster CoreIsogrid StructureFirst-Stage Fuel (LH2) FeedlineThermal ShieldFirst-Stage Engine (RS-68A)

1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.

1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.

1.2.3.4.5.6.

7.8.9.10.11.12.13.14.15.16.17.18.

19.

20.21.

22.23.24.25.

Payload FairingAcoustic PanelsSpacecraftPayload AdapterCentaur Forward Load Reactor Centaur UpperstageCentaur Fuel (LH2) TankCommon BulkheadCentaur Oxidizer (LO2) TankFairing BoattailCentaur Second-Stage Engine (RL10)Interstage AdapterFirst-Stage Oxidizer (LO2) Tank Common Core BoosterIsogrid StructureSolid Rocket Booster Nose ConeSolid Rocket BoosterFirst-Stage Fuel (RP-1) TankFirst-Stage Oxidizer (LO2) FeedlineSolid Rocket PropellantHydrazine BottleFirst-Stage Engine (RD-180)Solid Rocket Booster Nozzle

Payload FairingFairing Acoustic Panels (FAP)SpacecraftForward Payload Attach Fitting (PAF)Multi-Launch AdapterSpacecraftAft Payload Attach Fitting (PAF)Centaur Fuel (LH2) TankCentaurCentaur Oxidizer (LO2) TankCommon BulkheadSecond-Stage Fuel (LH2) FeedlineCentaur Aft BulkheadCentaur Second-Stage Engine (RL10)Interstage Adapter Booster First-Stage Oxidizer (LO2) Tank Orthogrid StructureSolid Rocket Booster Nose ConeCommon BulkheadSolid Rocket BoosterFirst-Stage Fuel (LNG) Tank First-Stage Oxidizer (LO2) FeedlineSolid Rocket PropellantFirst-Stage Engine (BE-4)Solid Rocket Booster Nozzle