It was planned to carry a 1 : 3 scale , 80 kg space capsule mock - up , TDS - 80 , into the stratosphere .
The HEAT - 2X was a rocket built for flight testing the TM - 65 engine .
HEAT - 2X was planned to carry a 1 : 3 scale , 80 kg space capsule mock - up , TDS - 80 , into the stratosphere .
The HEAT - 2X was a rocket built for flight testing the TM - 65 engine .