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Proton-K/Blok D

Proton-K/Blok D was the four-stage high-energy configuration pairing the three-stage Proton-K core with the restartable Blok D upper stage. It supported Soviet lunar, circumlunar, Venus, and Mars missions beginning in 1967, including Zond flights, Luna sample-return missions, and the first Lunokhod rover.

Proton-K/Blok D
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Identity

Aliases
Proton-K/DProton-K Blok D8K82K/11S824
Family Name
Proton
Full Name
Proton-K/Blok D
Status
retired
Type
rocket
Variant Name
K/Blok D

Details

Description
Proton-K/Blok D was the four-stage high-energy configuration pairing the three-stage Proton-K core with the restartable Blok D upper stage. It supported Soviet lunar, circumlunar, Venus, and Mars missions beginning in 1967, including Zond flights, Luna sample-return missions, and the first Lunokhod rover.
First Flight Year
1,967
Last Flight Year
1,975
Operator
Parent Vehicle Family
Rocket Specs
Reusability
expendable
Stages Count
4

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Assets & Meta

Creation Time
July 17, 2026 at 03:44:18 UTC
Updated Time
July 19, 2026 at 11:53:09 UTC

Other

Search Name
Proton-K/Blok D Proton-K/D Proton-K Blok D 8K82K/11S824