2015年4月19日日曜日

Bad day today

I had some bad failure today, though I was asked to take photography record of the amateur Japanese Dance at Southern Osaka this noon, I could not come the place in time, my arrival was delayed over 30 minutes. To tell the truth, from the beginning my departure was not in good condition, missed I one train with losing 10 minutes, over riding one station returning back with 15 minutes, final train I took could not come to the desired station 3 in front of that being obliged to wait next one 10 minutes loss, so 35 minutes was lost in total. Just losing one train affects so much to the result in total. It was a bad day today to have made trifle mistakes, how come?

2015年4月18日土曜日

My first EP flight

Past Thursday was the first day that I had an opportunity to try EP plane for the first time. The model airplane was my modified Majestic 30 with Futaba motor FMA-5055KV410 embeded instead of gas motor. Though 4 cell 14,8V Li-Po battery was selected at first, I realized it was not enough voltage to make maneuver and exchaned into 6 cell battery. APC 17-8E prop provided me enough capability to make patterns in the sky. The response is different from the of gas power, some different possibility to proceed into EP world was premonition. Because the center of gravity was not established in Majestic at all, the adjusting procedure was required there, too nose heavy phenomena was observed. Basically, the C/G position must be adjust by moving the heaviest component, battery(for motor and RX and servos) must be moved to posteriory, so this procedure might require the repositioning of rudder and elevator servos backward, it's troublesome and complicated manner?