/sci/ - Science & Math

>>15215649
>>15216020
Launched by H-IID rocket into suborbit and
separated at about 85km altitude, the orbiter is
further accelerated by its own propulsion system and reaches an initial parking orbit of about 250km altitude.
Several configurations of H-IID are under study for feasibility and the configuration of H-II core stage with six solid rocket boosters (SRBs) was assumed as a reference launcher. the propulsion system flight sequence is as follow:

-four SRBs are ignited at the pad and the
vehicle lifts off
-the remaining two SRBs are
ignited at the altitudes prior to the
former set of SRBs burning out
-then the cryogenic engine(LE-7) of the core
stage is ignited prior to the last set of SRBs
burning out, and each set of SRBs is jettiscpled
soon after their burning out
- core stage engine burns out at the altitude of
about 85km and the orbiter is separated.

What the FUCK is that staging

2nd International Aerospace Planes Conference - Concept and technology development for HOPE spaceplane. , (), –. doi:10.2514/6.1990-5223