Any one me with mini rc helicopters

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SUMMARY

The discussion centers on designing a mini RC helicopter capable of lifting a weight of 3-4 kg using a 12V DC motor. The user seeks assistance with propeller design and motor compatibility, emphasizing the importance of both motor specifications and propeller design in achieving the desired flight performance. The conversation highlights the inadequacy of existing mini helicopters, which typically support smaller payloads, and encourages practical knowledge acquisition through research and analysis of existing models.

PREREQUISITES
  • Understanding of DC motor specifications, particularly 12V motors
  • Knowledge of rotor dynamics and propeller design principles
  • Familiarity with weight-to-thrust ratios in RC helicopters
  • Experience with RC helicopter components and assembly
NEXT STEPS
  • Research existing 12V DC motors suitable for lifting 3-4 kg payloads
  • Study propeller design techniques specific to RC helicopters
  • Examine weight-to-thrust calculations for various rotor diameters
  • Explore forums dedicated to RC helicopter specifications and modifications
USEFUL FOR

This discussion is beneficial for electronics undergraduates, hobbyists interested in RC helicopter design, and engineers seeking practical insights into motor and propeller compatibility for heavy-lift applications.

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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