The conventional rocket is launched from the inland launch site, with the domestic impact zone. The rocket stage is possible to explode or decompose during the re-entry phase, causing significant safety issues in the impact zone. It is difficult for the conventional rocket to realize reuse in a short time. To solve the safety issue, propellant is released or burned up via engine re-ignition in the air, so as to decrease down-to-ground speed and to avoid explosion without major modifications of the rocket. In addition, grid fins are used to control the impact location of the rocket stage, reducing the impact zone range and thus improving safety.
TIAN Jichao
,
SONG Qiang
,
HONG Gang
,
ZHANG Ran
. Solutions for impact zone safety issue of conventional rockets[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018
, 39(S1)
: 722302
-722302
.
DOI: 10.7527/S1000-6893.2018.22302
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