"Actually, a full charge on 4S at 4.1V per cell is 16.4V, total. Based on your log, Voltage looks about right. As for voltage drop on take-off, you will have a definite drop once the motors spin-up under load. (My hex running 3805 motors weighing…"
"Love the Rocket Days! My wife was really into building and flying rockets.
This is my beast that will climb at 30'/s or 1800'/m. Imagine the altitude possibilities with a 35 - 40min flight time. And that's enough time to go up and come down…"
"When the Model Rocketry clubs come to the Dry Lake Beds here in Nevada, they get special permission from the FAA to do record height flights with their high power rockets. That would be a perfect time to hook-up with such a club and go for a…"
"While I can say I put a lot of time, effort and money into my Pixhawk Hexacopter with extended arms and DJI E600 propulsion system, I finally swapped the F/C over to a Naza M V2 due to general reliability issues and the lack of a really good 3-axis…"
"I've been running DJI's E600 propulsion system on my Pixhawk hex with pretty good luck until recently (flight crash due to wrong PIDs using a heavier 6S battery than what I usually run on 4S).
DJI's E600 system uses 20A Opto ESCs, 415kV motors, and…"
"The 6S batteries have a lot more energy content than 4S batteries. Think of it this way, 4S is nominally 15.2V average, and 6S is nominally 22.8V, over a flight run. Let's suppose you use the same mAh rating for two different batteries, chose…"
"Yep, I run the same SD Card in my GoPro Hero 4 Black. Seems to do just fine.
Raw video off of the P3 looks really good in my opinion, even at 4K.
As said just about everywhere else, prop balance and proper dampers seem to be the key. My DYS has…"
"It's possible that when using the front mounted GoPro on the Iris that the balance (CG) was off, contributing to flight instability. I find that both my Hex (using Pixhawk) and my quad (using Naza V2) fly much better when I use the battery to…"
"Instead of using the pitch control (output of an AUX channel on the PIX), simply select an open port on your RX and connect straight to the Alexmos board.
I just don't like my 3-axis DYS very much (using Alexmos controller). I just can't seem to get the fine tuning needed to take the vertical (pitch) vibrations out of the gimbal (not prop balance related). My…"
With Futaba, there is a certain TX mode you have to select to get 14 channels (transmitting). And with Futaba, if using S-Bus, it should support up to 18 channels (with an 18 channel TX). What I have…"