Any one me with mini rc helicopters

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Discussion Overview

The discussion revolves around the design and implementation of a mini RC helicopter capable of lifting a weight of approximately 3-4 kg using a 12V DC motor. Participants explore propeller design, motor compatibility, and the practical aspects of achieving the desired flight capabilities.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks assistance with propeller design and suitable motor specifications for lifting a specific weight using a mini RC helicopter.
  • Another participant suggests purchasing a rotor instead of designing one and recommends consulting an RC helicopter forum for practical knowledge.
  • A participant questions what research the original poster has conducted regarding existing designs and specifications.
  • The original poster mentions finding existing RC helicopters but notes they are designed for much smaller payloads and higher voltage specifications.
  • One participant argues that both motor specifications and propeller design influence flight performance.
  • Another participant provides examples of flying weights and rotor diameters for different classes of helicopters, suggesting these parameters are relevant to the original poster's requirements.
  • A participant advises the original poster to learn through hands-on experience and to analyze existing designs.
  • The original poster reiterates their search for guidance, emphasizing the inadequacy of existing mini helicopters for their specific needs.

Areas of Agreement / Disagreement

Participants express differing views on the importance of propeller design versus motor specifications, and there is no consensus on the best approach to achieve the desired helicopter performance.

Contextual Notes

The discussion highlights limitations in available designs for larger payloads and the challenges of finding suitable components that meet the original poster's specifications.

The EXPLORER
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Hi I am an electronics undergraduate and i have been trying to implement an idea which looks exactly as the concept of mini rc helicopters.

Ok Now Without any delay i will tell my idea. I really really hope anyone would help me out...

Now My Idea is to lift a weight of approx 3-4kgs using the 12v dc motor. I have read some threads in this forum and i am asking this question over here.

Iwant help on the propeller design and the attatchment as well as the compatible and suitable motor for the idea i ahve specified...
please some one help me out...
 
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Buy a rotor, don't design one.
An RC helicopter forum will be much better suited to talk about the specs of various common motors and rotors than we will. You don't need physics, you need practical knowledge.
 


what have you found so far from doing your own research?
 


All i Got is the completely designed rc helicopters by googling about the propellers but i couldn't get any material on the propeller design suited for my requirements but when i was searching i came across one of your discussions in this forum on "how much thrust can a 252 cfm fan can provide" it too didnt say anything about propellers it just said that only motor specs manipulate the flight parameters.
 


But i believe that along with the motor specs the design of the propeller alo influences the flight and it playss a major role too am i right?
 


Flying weight of a 450 class helicopter is about 750 grams.700mm (27 inches) rotor diameter

Flying weight of a 600 class helicopter is about 3300 grams. 1350mm (53 inches) rotor diameter

Big, bad, and dangerous.

Design: 3.3kg, 12 volt motor, 1350mm rotor diameter

All i found are these which are nearer to my requirements
 
as an engineer, you may have to learn something on your own someday. that may involve taking things apart.
start looking at what's already out there, and breaking it down
 
I have already done it ...i have looked out for some mini helics but all of them are designed for smaller payloads like 500gms-800gms and that too with 25-28v specs...they don't satisfy my need that's why i have posted my idea for discussion over here to get some expert guidance
 

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