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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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. ...
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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 ...
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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 ...
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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 =...
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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 ...
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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 ...
Max Walczak
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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 ...
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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....
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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 ...
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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 & ...
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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 ...
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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 ...
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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), ...
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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 ...
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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 ...
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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 ...
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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 = ...
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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
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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 ...
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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 ...
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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 ...
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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 ...
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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
...
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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
...
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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 ...
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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 ...
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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!!!
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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 ...
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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 ...
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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 ...
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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'...
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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 ...
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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 ...
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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).
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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?).
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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, ...
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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 ...
- 5,752
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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 ...
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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 ...
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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?
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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 ...
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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 ...
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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 ...
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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 ...
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How to reduce propeller tip losses?
I have heard that tip losses in propellers can occur when a propeller is highly loaded (when there is a much higher pressure under the prop blade than above it). This can happen with drones that fly ...
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Does the sharpness of a propeller blade affect efficiency?
Some of the propellers I have used on drones have sharp edges (sharp enough that they have cut me) and others have comparatively dull edges. Does the sharpness of the leading edge of a propeller ...
- 5,752
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How to measure the pitch of a propeller?
I have some random drone propellers which I don't have any information on. I looking to find a way to measure the pitch of the propellers to figure out if they will be well suited to a 5-inch drone I ...
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Why do most drones have upward facing motors?
Most freestyle quadcopters I have seen are specifically designed to fly with the motors facing upward and have the arms of the drone underneath the propellers like this:
As you can see in the picture ...
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Datasheets for lift of a 27x12x2 inch propeller?
I'm looking to find the amount of lift produced by a 27 inch diameter, 12 inch pitch, two-blade propeller spinning facing the ground. Are there any datasheets that show the amount of lift given at any ...
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How do laterally folding propellers affect multirotor flight?
There are a number of multirotors on the market which have propellers which fold at the hub, primarily to make storage and transport easier. Centrifugal force keeps the blade extended when the motor ...
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