Atlas V 551
Atlas V 551 is the configuration with a five-meter payload fairing, five strap-on solid rocket boosters, and a single-engine Centaur upper stage. It first flew on 2006-01-19; 23 vehicles have flown through 2026-07-02.
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Identity
- Family Name
- Atlas V
- Full Name
- Atlas V 551
- Status
- retired
- Type
- rocket
- Variant Name
- 551
Details
- Description
- Atlas V 551 is the configuration with a five-meter payload fairing, five strap-on solid rocket boosters, and a single-engine Centaur upper stage. It first flew on 2006-01-19; 23 vehicles have flown through 2026-07-02.
- Dimensions
- Diameter M
- 3.81
- First Flight Year
- 2,006
- Last Flight Year
- 2,026
- Manufacturer
- Operator
- Parent Vehicle Family
- Propulsion Configurations
- Entries
- Nested value
- Nested value
- Nested value
- Name
- Atlas V 551 AEHF-4 propulsion
- Notes
- The AEHF-4-era 551 uses one RD-180, five Aerojet AJ-60A solid rocket boosters, and one RL10C-1 on the Centaur upper stage.
- Entries
- Nested value
- Nested value
- Nested value
- Name
- Atlas V 551 STP-3 propulsion
- Notes
- The STP-3-era 551 uses one RD-180, five GEM 63 solid rocket boosters, and one RL10C-1 on the Centaur upper stage.
- Rocket Specs
- Reusability
- expendable
- Stages Count
- 2
Links
- Official Url
- https://www.ulalaunch.com/rockets/atlas-v
Assets & Meta
- Creation Time
- July 16, 2026 at 20:38:37 UTC
- Updated Time
- August 1, 2026 at 07:44:21 UTC
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- Search Name
- Atlas V 551