Abstract
The can-sized flier with an automatic guiding system was developed for a flight from over an altitude of 100m. It was designed so that it can be enclosed in the envelope with diameter of 154mm and height of 300mm. The gross weight was less than 1050g. The flight calculation showed that the manipulated length of control-line should be inversely proportional to the distance from the target. It was also shown that even 40g thrust would be effective under a wind velocity of 1m/s. Major thrust generated by propeller with diameter of 10cm was 67g in average.
