gwright
Senior Heliman
Location: Melbourne, Fl
| the 11L and 13T pinion is a 12-cell setup maximum. I did try 13 and 14 cells, and returned to 12 due to heat (no thermal shutdowns, but monitoring temps with raytak infra-red temp gun showed that the temps were way too high. Also,.. it seemed that the power gain with the higher cellcount was offset by the weight gain, and I much preferred the flight characteristics of the lighter machine on 12 cells. When going to 4S4P lipo's, the 11L was just way too much with the thermal soaking of the long flights, so I went to the C50 13L with 13T pinion. good power like 11L with 12 old roundcells, but lighter machine and 20 minute flights. I've ran the 13L with a 15 tooth pinion also, but have to time my flights and fly two 8 to 10 minute flights due to heat with that setup. The motor and controller are OK (assuming non-governer mode on controller), but the heat from the powerfull 16~18 minute flight gets to be too much for the batteries. As mentioned , non-governer mode on the controller runs MUCH cooler, so you might want to try that if you insist on higher cellcounts with the 11L. I found 20 to 30 degree drops in temp when going non-governer. I also found that the electric governs itself quite well with loading/unloading, so I simply run straight line throttle curves just as I did with governer mode in the controlelr,..i.e. 80% straight across and 100% straight across. I can't really tell any difference in rpm governing compared to governer mode, but power is just a touch better in non-governer mode, and the controlelr stays MUCH cooler to boot. |
I was flying my Logo 10 with a Hacker B40-11L, Hacker 48-3P ESC, 13 tooth pinion and 14 cells. It was flying fine for about 6 minutes then all of a sudden it quit working and crashed. 
After reading about running 14 cells with my motor I realized why it did that. 
I have changed my 14 cells back to the 12 cells. 
I guess I will have to be happy with the flight times I was getting before the 14 cells. Maybe I will try making them to 13 cells and see how they work?
