Abstract
Role of microgravity experiment with drop facilities in combustion research field is discussed based on the experiences of drop experiments at MGLAB (Micro-Gravity Laboratory of Japan) and JAMIC (Japan Microgravity Center). Three important roles, that is, (1) the role as a dark background to investigate an elementary transport process in combustion phenomenon, (2) preliminary test field for space flight experiments, (3) environment to find out unexpected phenomena, are emphasized. Finally, the advantages of two large drop facilities,MGLAB and JAMIC, are individually described from the view of microgravity combustion research.
