gwright Senior Heliman Location: Melbourne, Fl
| 14 cells is a bit much for the B50 11L in the logo 10. if you could fit a pinion smaller thn 13 teeth it would be Ok, but with that limitation, i found 12 cells to be the most without getting the motor in the danger zone with heat. I'm not flying 4S4P 8200 thunder power packs, have been since february in the logo 10's. Due to the higher voltage (somewhere between 13 and 14 roundcells equivalent) I've went to the C50 13L and 13 tooth pinion. Dunno how other perform, but there's a short video of my logo 10 from my sunday demo at the NEAT fair on the ezone. Has a little "oops" at the end while I was cutting a little grass inverted and got a few millimeters too low , but there's a few minutes on there of the flight performance before the crash to compare to other setups. This setup gives me 20ish minutes (give or take a couple minutes depending on how hard I fly it). The only "downfall" I've seen with the lipoly packs is that they're so light (4S4P is less than a 10-cell 2600 pack in weight, but equivalent to 13~14 cell pack in performance) that CG becomes an issue. I've installed the carbon battery support and run the pack WAY forward, till it basically touches the canopy front to get CG right. I'm thinking a 5S4P pack with a milder wind motor (higher voltage and lower current, even longer flights, with even more power) might be a good combo, but with 20 minute flights allready, it's not really needed. |