MULTISTAGE ROCKET AND METHOD OF SEPARATING USED PARTS Russian patent published in 2019 - IPC F42B15/12 

FIELD: astronautics.

SUBSTANCE: invention relates to rocket engineering and particularly to multi-stage rockets and can be used in rocket engineering. Proposed device comprises main acceleration unit represented by case and head fairing. Afterwards, compartment for payload, fuel tanks connected with rocket engines of the main booster unit are arranged in series relative to lengthwise axis. Rocket comprises additional fuel compartments. They are made with possibility of their separation from the main booster unit. At that, additional fuel compartments are divided into segments so that they are arranged one above another along longitudinal axis. In each segment there are fuel tanks. Upper side of each segment is head fairing or comprises head fairing. Every segment is separated from the farthest segment relative to rocket engines of the main booster unit. This is ensured by the possibility of segments displacement during rocket flight at a given angle relative to rocket axis at the speed providing safe rocket flight.

EFFECT: technical result is increase in fuel margin due to additional separated fuel tanks without increasing rocket diameter and without adding rocket engines.

12 cl, 3 dwg