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Questions tagged [propellers]

A mechanical device for propelling a drone or aircraft, consisting of a shaft with two or more angled blades attached to it.

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Arm_vibration when in flight

I have recently changed the front arm on my mini2 and now have a vibration when I go up and I have no idea why. Any ideas welcome
Steve Hills's user avatar
1 vote
0 answers
15 views

Quadcopter configuration with front motors inverted & the rear motors upright

Hello UAV enthusiasts and experts, I am currently working on a quadcopter drone project where we are exploring a unique motor configuration. Specifically, we are considering a hybrid setup where the ...
Chirag Singla's user avatar
1 vote
1 answer
26 views

RC Plane can fly or not?

I'm making a RC Airplane using Sunboard and Cardboard. The wing is about 80cm long, with a wing profile looking like I also connected a A2212 1000kv Brushless motor with a 10x4.5 Inch Propeller with ...
S.A's user avatar
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what are the typical speed variations of the propellers of large drone

On a large drone like the DJI Agras t40, when in hovering mode, what are the typical speed ranges of the motors? How much does it vary when taking off? If someone can explain how to know the answer, ...
alainsanguinetti's user avatar
1 vote
1 answer
42 views

I am confused on how to measure thrust for a propeller and would like some help

For my science project, I am measuring the power and efficiency of different propellers. I was researching thrust stands and that seems to be the best way to measure thrust. I already have a brushless ...
William Evans's user avatar
1 vote
1 answer
118 views

Drone back propellers not lifting it up

This is a second toy drone I got my son because I do not want to spend fortune on a DJI drone if controlling in an issue. It was fine but lately it hasn’t been lifting up. As you can see from picture, ...
localhost's user avatar
  • 133
2 votes
1 answer
83 views

Nano drone propeller keep flying off

I got my son a drone for his birthday but less than 24 hours and one of its propellers got lost 3 times and because it’s a nano drone. It is hard to find. I was hoping to find a solution here. ...
localhost's user avatar
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How Carbon-Nylon propellers compare to other materials

Carbon fiber propellers consensus seems: more precision but lower flight time compared to common plastic propellers. But... what about Carbon-Nylon composite propellers that are basically made in ...
AndreaF's user avatar
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Is there 3D printed PLA propellers efficiency comparison?

I have seen many tests about the resistance of PLA 3D printed propellers, and they are very strong and able to withstand a considerable high RPM level, not really a surprise considering that the weak ...
AndreaF's user avatar
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1 answer
77 views

Is 1 large propeller more efficient than 2 smaller propellers (if both cover the same area)?

Is there a reason in efficiency to prefer 1 large propeller over 2 smaller propellers, when both cover the same area? With same area, I mean i.e. $ r_{small} = 1 $ $ A_{small} = \pi * r^2 = \pi * 1^2 =...
Michael's user avatar
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1 answer
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How to connect my propellers to my drive shaft? and collet gripping force?

Okay so just to explain my problem. I have a central shaft that has two belt drives connected to it. Each belt goes to a propeller on either side of the drone. I need to connect the shaft that is ...
codingnoob's user avatar
2 votes
1 answer
235 views

Designing a simple RC aircraft propeller - where do I even get started?

Recently I was wondering how hard would it be to design a RC aircraft propeller. I have some basic idea about aerodynamics, but I'm an electrical engineer and computer scientist by trade. What I found ...
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2 answers
322 views

A2212 1000kv Brushless motor keep beeping and twitching

I have bought an A2212 1000Kv brushless motor and a 30A ESC. I power this setup with a 7.4v 2s 30c 800mah LiPo battery. For the signal, I am using a DIY Arduino receiver and transmitter. When I test ...
cool bean's user avatar
0 votes
1 answer
76 views

Why wont my 1000kv brushless motor work with a 10x4.5 propeller?

When I run my A2212/13T 1000Kv brushless motor by itself with 11.1 or 7.4 volts(i am using 2 lipo 3.7volts 900mah and a li-ion 3.7v 900mah in series that I connected with alligator clips) it runs fine....
cool bean's user avatar
3 votes
1 answer
53 views

Error in the explanation of Ingenuity: The Mars Helicopter by NASA members?

I was watching this video by Veritasium on Youtube, where he talks with NASA engineers about the Mars helicopter. At the attached timestamp they talk about how a completely overlapping rotor ...
Atharva's user avatar
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Effective Area estimation for drag calculation in coaxial quadrotor

I have a coaxial quadrotor with a propellor size of 34 inches & i want to calculate effective rotor area for drag calculation.what will be the area whether it is summation of both upper & ...
falcon's user avatar
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2 votes
1 answer
750 views

How to choose the most efficient (thrust per watt) motor+propeller setup for a drone?

I'm designing a quadcopter weighing around 250 grams, while maintaining a thrust-to-weight ratio of 2:1 Optimize: Maximize the thrust-per-watt for the motor+propeller pair Constraints: weight of each ...
Pragy Agarwal's user avatar
1 vote
2 answers
226 views

Could plane models propellers be used effectively for quadcopters?

There are CW & CCW propellers specific for moltirotor and other propellers as the following APC E style, distributed as propeller specific for planes. I'm wondering if such plane propellers ...
AndreaF's user avatar
  • 225
3 votes
2 answers
111 views

Motor voltage, kv, and battery weight saving

I would like to ask about motor and prop size and efficiency. So I was thinking to get either some 2203.5 motor with 1600kv wingspan of about 1,6m and 16x5 prop (prop length of 25% of wingspan), ...
Andre's user avatar
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1 vote
2 answers
564 views

How to maximize range with 2212 1400Kv motor and 30A ESC?

Premise, I'm not interested in speed or any type of sporty flight attitude, but only on range maximization I have 30A ESC, 2212 1400Kv motors 180W max with maximum efficiency current in the range ...
AndreaF's user avatar
  • 225
0 votes
1 answer
55 views

Can a push-prop model plane use control surfaces forward of the propeller, but which do not extend beyond the perimeter of the propeller's swept area?

While reading about various drone airframe configurations, in particular the trade-offs between various wing designs, I thought of a propulsion and control pairing which I have yet to find in the ...
jpt4's user avatar
  • 41
2 votes
1 answer
45 views

Finding new props that will fit

I have an old wifi drone with 2-blade props that I would like to upgrade to 3-blade props, but I'm having a hard time finding any that will fit my drone and I'm not familiar with the different methods ...
shwoseph's user avatar
  • 123
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1 answer
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How to calculate lift for multiple rotors?

So I know that $L = \frac{1}{2}​ρv^2AC_L$, but if I want to find the lift for a three-blade helicopter, do I just multiply by 3 or what? Let's say I have a 700mm rotor at 61mm wide, would it be: $L = ...
leasthollow's user avatar
2 votes
2 answers
693 views

Which propeller for these motors for rc airplane

I am new to this hobby and I am looking to make a rc airplane myself but I am confused to buy which propeller for this motor? Shall i buy CW or CCW propeller Thanks, Paarth
Paarth Katiyar's user avatar
4 votes
2 answers
66 views

DJI spreading wings 900 propeller size

I need to know the size (length and chord) of the UAV spreading wings s900 propeller. It should be 1552/1552R and the only info I was able to find was this size: 15×5.2inch (see here). I found that ...
Ruli's user avatar
  • 153
5 votes
1 answer
140 views

Contra-rotating coaxial shrouded fans: design guidelines

I want to design and make my own Dronut-like drone. The size will be limited by my LCD printer. My goals are: quiet. 2) safe. 3) duration. I'd like to use a pair of HBR turbofan style fans to ...
Buk's user avatar
  • 51
3 votes
1 answer
88 views

How to couple panel method velocities with boundary layer equations to obtain viscous pressure and lift coefficient?

I have calculated CP(pressure coefficient) and CL(Lift coefficient) for a NACA2412 airfoil using the panel method but as it only allows us to calculate the same for inviscid flow, I could not get the ...
Twisampati Roy Chowdhury's user avatar
-3 votes
1 answer
60 views

what kind of propellers should I use for my rc b29?

I want to make a remote controlled b 29 super fortress out of balsa wood. The estimate weight of the aircraft is about 10 pounds. What are the best propellers to use since I would like to fly at at ...
Elijah Sanch's user avatar
2 votes
1 answer
56 views

Do I need anything else for this drone build?

So far, I have these parts as all I need for a drone build. Is there anything else that I need or should have? Flight controller: DJI Naza-M Lite TX/RX: FS-i6 Drone body: F450 Motors: 2212 920kv ...
Proxy303's user avatar
  • 303
5 votes
1 answer
277 views

Influence of propeller blade shape and tip shape on its behaviour?

Newbie here, still learning how to fly and having to buy new propellers. Of the various properties to be chosen among, there are two that have me a bit baffled: symmetrical vs. undercambered and ...
Sixtyfive's user avatar
  • 153
3 votes
1 answer
48 views

Will a heavier drone frame help in avoiding toppling. (Not using receiver yet)

I have these coreless motors and propellers. I created two kinds of home made drone frames. I am not currently using any receiver. I arranged the motors so that diagonally opposite ones turn in same ...
Raster R's user avatar
  • 381
2 votes
1 answer
410 views

Loose drone propeller mount, flying off at high throttle

I have seen this post here that asked the same question, however, the user forgot to use one component (collar). I have similar components and even when I mount everything correctly, the mount is ...
Ahmed Anwer's user avatar
5 votes
1 answer
100 views

Compact Gimbaling propeller

does anyone know how would you create a compact gimbaling propeller, like how a rocket engine gimbals. Similar to that! Thank you for the help!!!
capybara_haha's user avatar
5 votes
2 answers
209 views

How can I increase the lifting power?

I understand the concept of lower KV bigger prop to increase the lifting capacity. But sometime that is not possible if your drone frame is just so big. For example I have a S550 I like to increase ...
Joseph Lim's user avatar
6 votes
1 answer
113 views

Help with finding a motor to rotate the plane of a propeller

I don't really know if this is related to this community but it's for a drone so it's worth a shot. I'm looking for some sort of motorized hinge or a motor that can move a propeller on the Y-Axis, a ...
Zachery H's user avatar
2 votes
1 answer
140 views

recommendations for a DIY/dev platform lifter drone

I was mainly wondering if there was something in the drones world, similar to what the ender3 is to the 3d printing community -- that is, a cheap kit massively owned by makers and open source ...
user1598's user avatar
  • 123
4 votes
1 answer
1k views

How do I attach a propeller to this motor?

As many of you already know, I am getting into RC planes. I went to my hobby shop today and bought a motor and some props, but I can't figure out how to attach a propeller to the motor. Unlike what I'...
ThatCoolCoder's user avatar
8 votes
2 answers
408 views

How to keep my prop from flying off my motor?

After finally getting every piece on my plane to work, another piece decided to be a problem. Great. My problem is pretty much already summed up in the title, my prop keeps flying off my motor, and I ...
Ceramicmrno0b's user avatar
5 votes
1 answer
693 views

Eliminate effect of Vibrations on IMU

I am testing pitch orientation correction of Quadcopter and ended up in a issue. I have a test setup with one degree of freedom to test orientation correction. I have fixed the drone to the setup and ...
TheLazy's user avatar
  • 451
0 votes
1 answer
143 views

Which battery do I need for my drone?

I am totally new to the drone space and I recently acquired a hand-me-down drone without a battery. It has a XT60 male connector type with 4 motors (DL2205 KV=2300).
Sobhi's user avatar
  • 21
6 votes
2 answers
5k views

Do I need CW or CCW props for my plane?

So I'm making an airplane with a motor at the front, do I use CW or CCW props? Pretty sure this is what counts as a puller plane (is that the right term?).
Ceramicmrno0b's user avatar
5 votes
1 answer
900 views

Picking the right prop pitch for my plane

Sorry for all the questions, but I'm trying to figure out what I need before ordering a hundred dollars worth of stuff and then find out I got the wrong stuff. So from what I understand of this site, ...
Ceramicmrno0b's user avatar
3 votes
3 answers
3k views

Why are micro pusher-prop quadcopters becoming more popular?

Recently, I've seen a rise in popularity of small drones using pusher props. Some of these include the FullSpeed TinyPusher, BetaFPV Beta95X/Beta85X V2, Diatone Taycan and Tinawhoop, and originally ...
Jacob B's user avatar
  • 5,792
4 votes
1 answer
115 views

How to decide drone motors?

I'm planning to design a quadcopter with a payload capacity of 5 kg. I would need the thrust power from the motors to cater for at-least 7 kg with extra part weights. I would like to know, How do I ...
Sency's user avatar
  • 149
5 votes
1 answer
113 views

What factors affect the noise level of propellers?

I've noticed that the noise level of different quadcopters can vary quite a bit, especially in the sub 3" range. For example, some of the Tinyhawk models are extremely quiet, while other similarly ...
Carbon Soar's user avatar
3 votes
1 answer
77 views

27+ inch racing propeller suggestions?

I'm looking for some propellers that can handle high rpm (7000-9000) and are large in size. (27+inches length) (pitch: 15+) Any suggestions?
Gabriel Kusiak's user avatar
2 votes
1 answer
82 views

Recommendations for a BLDC motor and battery for a 28x20 propeller?

I'm looking for a motor and battery set up that can last for over an hour and spin the propeller at 6000+ rpm. The propeller is a 28x20 single blade being connected to a second blade for a total of 56 ...
Gabriel Kusiak's user avatar
3 votes
2 answers
49 views

Do propellers at different angles work the same? And do intersecting flows of air work the same?

Say a propeller pushing thrust downwards generates 70 lbs of force. If you tilted the angle of the system to 45 degrees would it generate the same thrust? If you had each rotor angled inwards of a ...
Gabriel Kusiak's user avatar
3 votes
2 answers
493 views

Do flexible propellers affect multirotor efficiency?

There are a wide variety of materials and methods for making the propellers used on drones. This leads to certain propellers having different characteristics than others. Some propellers are more ...
Jacob B's user avatar
  • 5,792
11 votes
2 answers
5k views

Do propellers layered on top of each other have twice the thrust of one propeller?

If you had two of the same propellers layered on top of each other going at the same RPM, with some space in between, would the thrust be double the amount of a single propeller at the same RPM? If ...
Gabriel Kusiak's user avatar