Search results

Generally, wider, "disc", motors have more physical room for more poles and hence, higher pole counts. Short, fat, cans achieve the same magnetic swept pole area with different stator dimentions.

Agreed, and it's worse on the other forum where there are a higher percentage of beginners. I have ceased reading such posts as it gives me indigestion. It took me a long time to discover that not all are coming at this passion from the same place I am, or are headed toward the same goals...

FWIW, I generally set the travel/throw limits on the gain channel to 30% in both directions. Gives a nice linear gain change in flight with enough change to be useful.

The difference in motor speed isn't *that* great. Also, with a lowered frequency of primary mode, it would actually stand a better chance of getting into the gimbal system isolation mount unless the bobbins were changed out for a different durometer. Properly balanced motor rotors and props...

Ugly things, that's what. Been there, (different FC). Radio system glitched due to what later proved to be a known bug, receiver issued a F/S, and away she went. Only problem was, it wasn't flying yet! Took days to repair my 1000.

To the best of my knowedge/experience, smooth video has nothing to do with motor size or the kV rating of such. There are many factors but these are not some of them. If I had to make a list it would be 20 items long, at least.

To my way of thinking by the time you get around to octos, you're serious enough to get a real commercial controller. There's no way I'd build a 5 thousand dollar aircraft and not have a X Aircraft, DJI, Zero UAV, MK, or whatever, in there.

Ok here's one, (a question), for you. I tend to doubt the above statement. Uncompressed HD video in 180P form, is about 3 Gb per second. What sort of TX RF bandwidth do we have going here? And where is it in the spectrum ?

It's my understanding that the Zenmuse only works with DJI FCs, period. Most third party gimbal systems are totally indpendent and don't use any data from the FC as they have their own IMUs.

They're probably counting the number of magnets on the rotor as "poles". They aren't poles in correct parlance. IIRC, there's always one more, or one less, magnets than poles so the motor doesn't pole-center and not start under electronic commutation. How they come up with two is beyond me...

Understood, and not even remotely the same as most Scandanavian languages. To make matters worse, there are many colloquial phrases and words-that-aren't-words, used on these forums. Easy for a native speaker to grasp, a total mystery to a non-native speaker.

Trouble is, the FC won't. Throttle mid-points are somewhat "rubber" in nature due to hysterisis built in to the FC and incedent winds "spoofing" the baro in the FC. Not a good idea. If you're flying LOS, watch it, if FPV, watch the altimeter on the OSD. These are the only sure fire...

Killer vibration levels! I had no idea it could ever be this low. M6 and M3 are still slightly pulling against each other, though.

Agreed. It's OK the way it is but I routinely see an average of 0.4 with peaks of 0.8 or so. Prop size looks OK as motor drives are in the 45-55% range. I prefer a somewhat underpropped condition with drives running in the 48-58% range over the length of the flight. Also sometimes this...

Sure sounds like ESC issues of some sort. Impossible to diagnose by remote control, from here. Vibration is down and CW/CCW motor groupings are tighter though. Tends to negate the possibility of a frame/build issue. No experience with DJI ESCs, so I don't know.

XT60s, no issues.

Do you mean 13 x 6.4, or what? If so, that's kind of a high P/D ratio for a multi, especially for a 22 pole motor. Most 13 inch props intended for multis have a pitch of 4.7 or 5 inches. One 13 inch, (X 5 inch) that I have used is the Xoar woods, and they're really good. True, and virtually...

A few things visible here. (I'm presuming we're looking at flight #49, the final in this log) The present props are good to go, average motor drive is in the 50-55% range. I personally prefer a scootch higher, but that's *my* preference, not what's design optimal. Also, there is a noticeable...

All this and more awaits in your Black Box file for the test flight. Flight system instability under some flight conditons shows under "gyro angle rate" and motors too slow (overpropped)/too fast (underpropped) would show under motor drive level figures. One of the many advantages of the Super...

Turnigy "Plush" 40A with HengLi 4822, no issues. "Ringing" is normal. This is the fundamental chop rate of the ESC's PWM action, usually 8kHz.