def make_two_stage_rocket(temperature, ox_mass, ox_volume=None):
panthera = make_panthera(temperature,
3.5,
ox_tank_volume=None,
ox_mass=ox_mass)
panthera.load_drag_data(1)
#panthera.engine.construct_injector(panthera.oxidiser.pressure, panthera.oxidiser.temperature, panthera.fuel.pressure, panthera.fuel.temperature)
pro98 = SolidMotor("Pro98", "white-dwarf")
pro98.read_eng_file()
aluminium = Material(2700, 270e6)
condor = Rocket(None, None, aluminium, pro98, 15, 0.1)
condor.load_drag_data(2)
rocket = {
"booster": panthera,
"booster-sep": False,
"delay": 1.0,
"sustainer": condor
}
return (rocket)
