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What are the specs of the DJI Mavic 2 Pro motors?

Does anyone know the specifications of the motors on the DJI Mavic 2 Pro? I'm asking about things like stator size, KV, etc.
Jacob B's user avatar
  • 5,792
0 votes
1 answer
1k views

Difference between iFlight XING-E and XING motors?

Is there any performance difference between iFlight's XING-E and XING lines of motors? I know that the XING motors have some better materials like titanium shafts but are there any performance ...
Jacob B's user avatar
  • 5,792
8 votes
2 answers
93 views

How much air-intake space do I need in front of my DJI Spark's propellers?

I've got a DJI Spark that I sometimes use for close-proximity flying such as inspecting the roof of a house. The stock propeller guards protect against flying laterally into an obstacle, and the ...
Mark's user avatar
  • 686
3 votes
2 answers
1k views

How hot should an ESC get?

What is the maximum safe temperature that a brushless drone ESC should get? What could happen if a brushless ESC were to go over its maximum temperature tolerance?
Jacob B's user avatar
  • 5,792
10 votes
2 answers
4k views

Why is an MPU6000 more well suited for drones than an ICM IMU?

I have seen people say that the MPU6000 is the superior gyro chip, even though the ICM chip has a faster refresh rate and is technically superior in any other use. Why is it better to have a lower ...
Drones and Whatnot's user avatar
7 votes
2 answers
2k views

Difference between analog and digital FPV systems?

The new DJI digital FPV system and a few other systems are using a digital signal for FPV video. How is this different from a traditional analog signal for FPV drones?
Jacob B's user avatar
  • 5,792
3 votes
1 answer
365 views

Effect of Deadcat frame on performance?

I've seen a lot of new frames with a Deadcat style because it keeps the props out of view for cinematic videos and such. Does the Deadcat shape of frame have any effects on flight performance?
Jacob B's user avatar
  • 5,792
3 votes
1 answer
476 views

Video breakup problems with high power using The Force VTX?

I normally fly with my VTX on 200mw but sometimes I need it to be more powerful. Whenever I turn it to a higher power setting, though, the video becomes worse. When I set it to 600mw, the video seems ...
Jacob B's user avatar
  • 5,792
5 votes
1 answer
80 views

Learning how to fly a 3" quad

Preface: I'm a newer pilot to the FPV world with limited stick time on 5". I just built and flew a 3" for the first time. LOS is not a problem for verifying functionality. Then I put on the goggles ...
WormBurner's user avatar
2 votes
2 answers
581 views

What is the correct process for transferring to a new transmitter?

I’m looking to upgrade from my QX7 to the new Radiomaster TX16S Hall when it comes out. I have several models saved to my current radio, and I’d rather not go through the hassle of rebinding all of ...
Drones and Whatnot's user avatar
9 votes
5 answers
794 views

How to clean a drone?

I was just flying my drone when I crashed in some tall grass and there are now a bunch of grass bits all over the drone. How can I clean the drone without damaging it?
Jacob B's user avatar
  • 5,792
5 votes
1 answer
1k views

How to PID tune a 10" drone?

I have a 10" inch drone that I have trouble tuning. On the default Betaflight PIDs it feels really unstable, and I have tried to raise P, I and D both together and one by one without noticing much ...
Hannes Hultergård's user avatar
7 votes
2 answers
144 views

Are real-time OSDs for HD FPV video systems available for drones?

In the last several years, several high-definition FPV video systems have become available. These systems do not use the NTSC or PAL analog video historically used with FPV systems and they are not ...
ikrase's user avatar
  • 171
4 votes
1 answer
274 views

What is RPM filtering in Betaflight?

I've seen a lot of buzz lately about the supposed advantages of using the RPM filtering option introduced in Betaflight 4.1. What is it and how does it improve inflight smoothness?
ifconfig's user avatar
  • 5,988
4 votes
2 answers
515 views

How to straighten a motor shaft?

I have a drone with a motor shaft that got slightly bent. I can't buy a replacement bell because they only sell the motor as a whole. Is there any way to bend the motor shaft back into position?
Jacob B's user avatar
  • 5,792
2 votes
2 answers
774 views

What props for a 2207 2750KV motor?

I have a 4s Nazgul5 drone. It is a 5'' drone and uses 2207 2750kv brushless motors. What is the most aggressive prop I can use on the drone without causing it to overheat or cause the battery to sag?
Jacob B's user avatar
  • 5,792
8 votes
2 answers
489 views

How do I tell when to replace the motors on my tinywhoop?

I own a brushed micro quadcopter, more commonly known as a tiny whoop. I've read that brushed motors in general, and especially those used in such quadcopters, have a limited lifetime and that you ...
FlashCactus's user avatar
  • 2,987
15 votes
6 answers
831 views

How does one hold the motor bell still when tightening prop nuts?

Almost all of the brushless motors used in hobby-grade multirotors have a single threaded shaft and rely only on friction between the propeller and motor to keep the prop from slipping. This means ...
FlashCactus's user avatar
  • 2,987
12 votes
4 answers
2k views

At what per-cell voltage should I land?

I built 5" quad and I'm using 4S 1300mAh LiPo batteries. My question is: at what voltage should I land? Let assume that I'm trying to land when my battery is as low as it should go without causing ...
Ziem's user avatar
  • 579
7 votes
2 answers
9k views

How to enter DFU mode on my flight controller?

How can I enter DFU mode on flight controllers, in particular on my CL Racing F4S flight controller? Ref.: https://cl-racing.myshopify.com/products/clracing-f4s
Ziem's user avatar
  • 579
7 votes
2 answers
2k views

Difference between a 3 and 6 axis gyro

When shopping for drones, I see a 3 and 6 axis gyro available, what is the difference between the two? Does one have a advantage when flying over another?
user avatar
9 votes
3 answers
4k views

Can I run two motors off of one ESC?

Normally, a dual-motor plane has two ESCs but could I connect two brushless motors to one ESC? What would happen to the torque and speed of each of the two motors connected to the ESC?
Jacob B's user avatar
  • 5,792
6 votes
2 answers
2k views

What is the advantage of a stretched-X frame over a true-X or squished-X design for racing?

Most racing frames on the market appear to be stretched-X (longer than they are wide). I have heard the argument that a stretched-X allows better airflow to the rear props due to physical distance, ...
Ben Wilson's user avatar
3 votes
1 answer
61 views

What is a filtered power pad on flight controller?

Having looked at many different flight controllers I saw that many of them have filtered power pads. What does it mean when it says filtered power?
Jacob B's user avatar
  • 5,792
6 votes
4 answers
3k views

What's the difference between F4 or F7 flight controllers?

What is the difference between the STM32F411 and the STM32F722RET6 processors in flight controllers? What are the advantages of having the F7 processor over the F4 processor?
Jacob B's user avatar
  • 5,792
4 votes
1 answer
316 views

How to use an XM+ receiver without a flight controller?

All of the model aircraft I have seen without flight controllers normally have a receiver with all of the channels separate. Is there any way I can use a receiver like an XM+ receiver on a model ...
Jacob B's user avatar
  • 5,792
8 votes
2 answers
101 views

How to focus a newly-replaced lens on an FPV camera?

I cracked the lens on my FPV camera after a metal pipe jumped in front of my quad...Fortunately, I had another lens from another FPV camera sitting around. But I'm not sure how far away I should be ...
user688344's user avatar
8 votes
3 answers
245 views

How do you waterproof your electronics?

I fly FPV drones a lot in the winter where it is wet and snowy. What is the best way to protect your equipment from shorting out from water?
5zero7rc's user avatar
  • 1,130
5 votes
1 answer
1k views

How to create a motor startup tone with a BLHeli ESC?

I am using a 32bit DShot1200 ESC, how can I make a custom startup sound for when the drone is powered on?
Jacob B's user avatar
  • 5,792
3 votes
2 answers
1k views

Series or parallel connection for drone batteries?

What is the difference between adding two drone batteries in series vs a parallel connection for flying the drone?
Jacob B's user avatar
  • 5,792
10 votes
2 answers
1k views

How hot is too hot when it comes to multirotor motors?

I hear this question asked all the time. Are my motors getting too hot? How hot is too hot for motors to get? Anyone have a great way to answer this question, possibly with some temperatures? I ...
5zero7rc's user avatar
  • 1,130
8 votes
1 answer
176 views

What should I look for when choosing an FPV camera?

I know that cameras are applicable to lots of fields, but FPV cameras are a special category with a very specific set of requirements - what should I look for when picking an FPV camera?
Drones and Whatnot's user avatar
8 votes
2 answers
892 views

Can I configure Betaflight in the field without using a laptop?

I often find myself wanting to make adjustments to the settings on my quadcopter in the field, especially when tuning PID settings and rate profiles. I currently bring a laptop with me wherever I go ...
ifconfig's user avatar
  • 5,988
7 votes
1 answer
428 views

How fragile are the SMA connectors used in FPV equipment?

I've heard that it is a terrible idea to install and remove SMA antennae from my goggles every time I need to pack it away after a flight session. I know that this is because the SMA connector is ...
ifconfig's user avatar
  • 5,988
5 votes
5 answers
588 views

What affects the total flight time for a drone?

What factors would affect a drone's flight time? Battery capacity? Weight? Anything else?
user avatar
9 votes
2 answers
390 views

When flying FPV in a group, what are the best video transmission channels/frequencies to use to avoid interference?

When flying FPV drones in a group setting it is very important to choose appropriate video transmission frequencies so you don't interfere with others that are flying near you. What are the best ...
5zero7rc's user avatar
  • 1,130
8 votes
2 answers
839 views

Why do LiHV batteries degrade faster than an equivalent LiPo?

There seems to be a lot of anecdotal evidence, at least on YouTube, that LiHV batteries degrade faster than LiPos. Is this true? I own a couple whoops and only have 1s LiHV batteries since I can't ...
StevieRayBomb's user avatar
3 votes
3 answers
784 views

Beeper beeps if transmitter is turned of even if it shouldn't

I have turned off all beeper sound signals in Betaflight Configurator, but the beeper still beeps if the transmitter is turned off. I thought that that shouldn't happen when RX_LOST was turned off or ...
Hannes Hultergård's user avatar
3 votes
2 answers
90 views

Does the LaForge V3 Fat Shark Receiver receive audio from VTX?

I installed the Mach 3 VTX that has a built-in mic for audio that is transmitting to the LaForge v3 receiver in my fatshark dominator v3 goggles. Video works great and Smartaudio is also working. I ...
2pacsawyer's user avatar
7 votes
1 answer
463 views

Which settings in Betaflight allows me to do flips and rolls?

I see a lot of people flipping and rolling their quads, but on my last attempt, it fell out of the sky. What are the settings in Betaflight that allow them to do this without stopping the motors?
Apache64's user avatar
  • 121
12 votes
3 answers
3k views

What does Feed Forward do and how does it work?

PID tuning involves P, I and D gains to help the quad follow RC commands. Whenever there is an error, P would "push" the quad to reduce the error. So how does Feed Forward come to play?
Klystrom's user avatar
  • 121
6 votes
1 answer
164 views

What are the typical methods of constructing a large airframe?

When building a 5 feet wingspan UAV, what building techniques: used on smaller aircraft can't scale to aircraft of this size? are best used on aircraft of this size? Ideally, I want a simple ...
Krish's user avatar
  • 762
5 votes
3 answers
76 views

Keep quadcopter steady when taking a video

Whenever I take a video on my small quadcopter, it’s never steady. It always bounces up and down a bit rather than keeping level. How can this be stopped/prevented?
user avatar
5 votes
1 answer
222 views

Headless mode on a drone

I have noticed my drone has headless mode listed as one of it's features. This poses a few questions: What does this mode do? How is it different from normal mode? How does it work? How do I ...
user avatar
4 votes
1 answer
80 views

Difference between analog and digital servos?

I've noticed that there is often a price gap between analog and digital servos. What is the difference between an analog and digital servo and why is a digital servo better?
Jacob B's user avatar
  • 5,792
2 votes
4 answers
560 views

Effect of motor load on ESC?

I know that when a prop is caught on something or is slowed down by something it can put extra strain on the ESC or even burn it out. If I was using a 2207 motor with an unusually large and heavy ...
Jacob B's user avatar
  • 5,792
5 votes
1 answer
66 views

Barometer vs Rangefinder

On a small 6-7inch drone do I need a barometer, rangefinder or both? Is there a standard practice or does it just depend on use case?
user avatar
5 votes
2 answers
256 views

Optical sensors vs Ultrasonic sensors on a drone

Are there any performance differences between optical sensors and ultrasonic sensors? How do I make the right choice for my drone? I will be using them in a object detection system for collision ...
user avatar
8 votes
3 answers
166 views

In drone racing with multirotors, how does one navigate the course?

Whenever we watch drone racing, there is usually a course marked out in cones. However, when there is an obstacle such as a Jacob’s Ladder, the racers know the order to go through each of the gaps. ...
Drones and Whatnot's user avatar
5 votes
1 answer
801 views

Can drones/uav's fly over international waters without FAA's regulations?

Can UAV's or drones (consumer/commercial scale) operate over international waters (12 miles out from the shore) without being regulated by the FAA? Just wondering if companies can do things like ...
ohitstarik's user avatar

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