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Well, after all the technical issues I finally had two successful test flights! I resolved the Bad GPS warning problem - I had to plug the GPS into a port below the compass port. I also programmed the ESCs for Intermediate Timing, which seemed to resolve my motor surge issues. The first test...

I took my modified Elev-8 out for a flight a few days ago and it behaved strangely - would not hold position in Loiter mode and and started to fly way when I switched to RTL, so I had to take over and land manually. I pulled the flight controller off and opened up the case to make sure that the...

So, I replaced the ESC's with some T-Motor AIR 40A ESCs that I found at a reduced price on ebay. I flew the Tarot and found that the surge problem seemed to be better but the aircraft would not maintain altitude during either Loiter or Alt Hold flight modes. A check of the dataflash logs showed...

I finally put the aircraft back together - replaced a bullet connector on two motors that had questionable solder connections. I also lengthened the ESC/motor leads and twisted them. I took it out for a short flight and the problem persists - now I suspect an ESC synch issue. I am going to...

I have completed a build of a Tarot 650 Ironman, but during initial test flights, I'm experiencing random twitches and surges from the motors. I've asked for help on this and the DIY Drone forums with no advice. I've reflashed the flight controller, redid all the calibrations, including the ESCs...

Build is complate. Now I have to install the firmware and go through the calibrations.

Okay, I have finally wired up the ESCs and motors. I had to reposition the MATEK pcb and APM power module as the boorms were interfering with the wires, so I had to take take it apart and move the MATEK underneath the bottom chassis plate. I put the booms on and now I'm happy with the wiring...

I need some advice/opinions. I have decided to mount my 40A OPTO ESCs underneath the main chassis as shown: I have attached velcro squares to the ESCs and onto the Tarot battery plates and sandwiched them together. My question is will I run into heat issues with this arrangement? the...

The frame, ESCs , 100 mW telemetry raios and Pixhawk arrived. I agonized over what to do for power distribution but finally decided to go with a Matek FCHub power distribution board - I think that it will provide cleaner and more reliable connections and I like having on board 5V and 10V power...

It has been awhile since I've reported and since then I have moved. But I thought I'd take a moment and bring you up to date. first of all, the bad news - my aircraft crashed on its second flight. According to the logs I suffered a brownout and the motors quit and it just fell out of the sky...

It is when you're a wimp like me!

Probably around -3.5 C.

I have given it some thought, but before I attempt that I want to fly both at the same time - enter similar waypoints but have one follow the other at a higher altitude and of course have separate landing spots.

I just moved to Loveland, Colorado - my house backs up to a golf course. This morning, I decided to fly one of my modified Elev-8 quads over the course as it was a nice, sunny morning but very cold - no golfers out on the course. I uploaded a simple waypoint mission - the aircraft was to climb...

Jeremy, regarding landing gear, I used nylon rods, which I bought on Amazon. They are stronger and flex which absorbs a lot of shock on hard landings:

I remember some time ago reading about parachute systems for drones - here a few links I found: https://fruitychutes.com/uav_rpv_drone_recovery_parachutes.htm?gclid=CjwKCAiAx4fhBRB6EiwA3cV4KqNyZEXyICmTIUfMuxVnQsxuCNy_WJmlvC3YOhgunKwlamqL5RDqWhoCkkYQAvD_BwE https://www.marsparachutes.com/...

I know what you mean about being gun-shy. After my two crashes I decided to give up, but like you, I had a bunch of parts laying around and I missed not having a flying video platform, so I decided to build a new one - the Tarot Iron Man. It was scary taking off yesterday, but it did fly. But...

I am curious about crash #3 as I had the same experience with two crashes myself - here is the video from one of them: Both, the modified Elev-8 and Tarot 650 Sport had ESCs mounted under the motors with power/ground leads running through the booms to the pwd harness in the chassis. I learned...

Well, I was searching through some old posts in a couple of forums - seems that this problem has cropped up in other builds. There was a lot of technical stuff being mentioned that seemed to do with code in the APM firmware, but since the posts dated back to 2013 or so I figured that any code...

So, this morning, the air was calm though somewhat cold but conditions were right for a test flight. Being it's first flight the objectives were to make sure all flight controls - pitch, roll, yaw worked fine. Then put the aircraft into Loiter mode and test the compass/gps; in Loiter mode, yaw...