Proton-K/Blok D 231-01 was an individual four-stage Proton-K/Blok D flight article launched from Baikonur on 1968-03-02. The launcher successfully dispatched Zond 4 on a high-apogee flight that tested an L1 spacecraft at lunar-return velocity.
Identity
Aliases
Zond 4 launch vehicle8K82K 231-01 Proton
Name
Proton-K/Blok D 231-01
Slug
proton-k-blok-d-231-01
Status
retired
Details
Description
Proton-K/Blok D 231-01 was an individual four-stage Proton-K/Blok D flight article launched from Baikonur on 1968-03-02. The launcher successfully dispatched Zond 4 on a high-apogee flight that tested an L1 spacecraft at lunar-return velocity.