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This posting is an attempt to answer several recent questions. Last night I measured the arms....... the 800mm will be the diameter of the assembled frame from between the center holes in the arm for each motor. 3D printing involves the use of relatively low quality plastic that is easier to...

I was under the impression that the range issue was for a previous model and is not an issue now with the new serial bus version.

I have the 8 channel sb model item 129 from above hot link......been flying it for a month or so and no issues..... yet!

When installed onto the DJI F550 top and bottom plates you get the typical MultiRotor industry 800mm standardized size..... but they come with their own equivalent sized top/bottom plates c/w internal nylon standoff reinforcements. Bolt patterns are identical for either set of plates.

Who distributes and sells GenAce batteries in North America?

IMHO..... Parts? cheap for the most part except for battery replacement. Labour rate? If DIY - assess what your personal time is worth based on your experience and credentials...... R U a professional photographer, engineer, technologist, electrician, Hobby shop owner or hobbyists trying to...

Where/what is the source of that warning? Did it come from DJI or someone else? My GCS datalink is the DL900 which is 900 Mhz fhss. So I have no issues whatsoever. Wireless n Wifi operates in the 2.4 Ghz band using fhss etc.

My Hero GoPro3 Black has been flown several times now with wifi active...... no issues whatsoever..... using Futaba 8FG Super RC system.

Yes Ultracote or Monokote versus electrical tape is much lighter.

There are risks associated with overloading an MR including an inability to recover from a rapid descent because of downward momentum, a restricted flight speed and altitude etc. In my case I have a loaded F550. When powered by one 4S 4000 mah I get excellent flight time of 12 minutes but when I...

Looks good..... Yes..... seeing the red arms versus white helps with orientation but so does the PMU LED and so would any green (port) and red (starboard) leds that might be added. The black arms look more professional IMHO and there is no airflow restriction under the props and thru the...

Oops..... but I think you were already on the bus when it left! On one of my very first flights, mine hit the ceiling in the garage simply because i switched it from attitude mode to manual mode and was not prepared for the sudden increased rate of climb. It was not until later that I first...

Wonder if the garage incident had anything to do with the "defective" gyro? I did the same though and mine still flys although the joystick trims tend to drift between each flight. "Flight one: In my garage (15 ft ceilings)...Attitude mode... I attempted to get it to hover but once I began to...

Because the RCT800 arms have a raised center rib, they were designed to minimize flex for both span and weight or thrust of the motors. I just tried to flex them and they "seem" stiffer than the F550 arms from a personal perspective......F550 arms are same as F450 I believe. But that is a...

Interesting..... that was a lot of troubleshooting but glad you found a solution...... obviously that "z" gyro comes in handy for all three modes, i.e., manual, attitude and GPS!!!!

Incidentally Howard Hughes aeronautical engineers developed in the 40's or 50's a plan with paired counter-rotating props that was deemed to be more efficient than using for separately located motors/props.... but then he crashed the plane and moved on to other things. Apparently there is an...

Good info sources you have provided Mombasa Flash....... BTW - In the movie "Vertical Limit" there is an excellent scene where mountaineers needing to be rescued climb to the "vertical limit" of what a heli was capable of reaching...... a real nail biter.... you can see the chopper pilot was...

Sharing my video here...... GoPro3 on a 468 landing gear with modified 2 axis gimbal using a GoPro 3 Black edition at 1080 30 fps. Moongel used to dampen frame vibration following an attempt to balance six motors. Other details in my signature below. Original video shot at 1920 x 1080 but...

I think the Helicopter pilots who fly heli-skiers will have the best possible answers to these questions. IMHO - Increasing prop diameter is better than increasing the pitch for higher altitude flights. But when the maximum diameter prop is installed and the maximum speed does not give you the...

The compass serves no purpose in Attitude mode. In any case a compass close to the north or south pole will lose a lot of accuracy and/or shows random directions as you get closer to the pole. Ask some pilots or scientists how they manage direction there.