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Quad copter maiden crash My quad crashed on the first test flight. Motors mn4014, esc 40ams TM, 6S Lipo, prop 17” TM, AUW 7060g, gains: 240,240,200,200—220,220. I started motors in GPS-ATI mode. After about one minute took off. Flew rock solid. Hovered about 5 meters over the ground and 5 meters...

very nice build! 15 kg payload (excluding batteries and frame .....) ? How much endurance? Is it stable while flying in windy condition? Thank you.

Thank you soler. Probably not needed to be connected to a VTX either right? Iosd would be connected only to WKM, no camera, no VTX and still produce the log file? I can save some weight if I exclude the fpv camera and the VTX.

I wonder if IOSD markII would save the flight log even if no camera is connected to it. I need the log file for georeferences but I don't want to connect any camera to IOSD.

srbell, thank you for your advice. The project manager changed the plan. Now he wants the images to be taken with a full frame camera such as 5D MarkII or III. This makes my work harder. 5D is almost 1500g with the lens which means I have to set up may be a Hex for it. The setup I am thinking of...

Thank you srbell. I am also coming to this conclusion that Zen is overkill especially because the area of the project is 4 square kilometers! which means the bird has to travel about 34 kilometers to cover the area. So I have decided to use one of my quads which is capable of carrying NEX7 for...

Cratageus, you said on your earlier post that you are using A2. May be A2 is the issue for you. I am using WKM. First thing I should know is if the combination of wkm and Z15 and photogrammetry software is able to trigger nex7 every 2 seconds without using an IR shutter like TinySnapper or so.

I am planning to do a photogrammetric project using WKM + S800 + Z15 + Sony NEX7. Please help me on this. Do I still have to buy an IR shutter for NEX7 if I use Z15 and photogrammetry tool? I want to trigger the camera every 2 seconds.

I have been using DJI 900mhz data link for a while. Often tested travel distance up to now is 4 km forth and back in an open area (LOS). I wonder what happens if I set waypoints behind objects like buildings, mountains, trees and so on… Probably I lose radio tx-rx connection (LRS) and video...

Thank you. I would follow your suggestion as soon as as I get some spare time. I have WKM on two MRs. S800 and a quad. Both have the same issue. I have already swapped GPSs and the problem still exist for both. Even with incomplete calibration process the quad flies about 6 km on GPS but S800...

Thank you elossam. Slowering did not work for me. I don't know what to do now.

elossam, I have tried both with and without plugging data link. the procedure ended with no LED light as you mentioned on your earlier post. Tomorrow I will try slowering the vertical alignment to see if I have the same luck as you.

yesterday I took my quad to a place (almost desert) about 300km away from where I normally fly. I loaded the firm again started from default and played a bit with COG. this time while calibrating the compass I did not get any finishing light at all. started with solid blue, then solid green...

I get steady purple light on 5.24 even though it is stated in the manual that the procedure should end up with solid white light. Data link is not connected. on 5.22 I get white light.

My calibration starts with solid blue light, Then solid green and at last three seconds of steady purple led light! (no white, no red). Does it matter?

Hei Magnus. I wonder what happens if GPS signal is lost during the waypoint flight. Does the bird hover until the signal is back?

I guess you are lucky owners of S800. My case was different. I did buy S800 to lift up zen and nex. First problem were ESCs. DJI called back ESCs. The problem couldn’t be solved by reading. ESCs got pretty much hot and it was not safe to fly S800 (dangerous!). It took time. Second problem which...

Maybe it affects people who have IMU V2 !!

Thanks but I miss the RTH switch function on 5.22. I would like to have that option. The new 50 free way points on 5.26 fw is almost useless for me since the GPS lock is not stable.

I have the same problem with 5.24 and GPS hold. I have tested this both on my quad and my s800 using WKM. What version of firmware is suggested to go back to for more stable GPS hold?