How to determine what electric motor to use. Need guidance please.

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SUMMARY

The discussion focuses on selecting an electric motor for a UAV project aimed at surveillance in Greenland. The engineering student seeks guidance on the mathematics involved in determining the range equation for electric motors, thrust capabilities, and battery compatibility. The conversation highlights the student's transition from petrol propulsion systems to electric alternatives due to cost and weight considerations. A query is raised regarding the assumption that electric motors are cheaper and lighter than petrol engines.

PREREQUISITES
  • Understanding of electric motor specifications and performance metrics
  • Familiarity with UAV design principles
  • Basic knowledge of battery technology and compatibility
  • Mathematics related to propulsion systems and range equations
NEXT STEPS
  • Research electric motor thrust calculations for UAV applications
  • Study the range equation specific to electric propulsion systems
  • Investigate battery types and their compatibility with electric motors
  • Explore cost analysis of electric versus petrol propulsion systems
USEFUL FOR

Engineering students, UAV designers, and anyone involved in electric propulsion system selection and optimization.

SilentIdea
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Hello all!

I'm an engineering student who is taking part in a group project to design and build a UAV to carry out surveillance in Greenland. Now my specific task is to sort out our means of propulsion and materials. The problem is up to now I have only learned about petrol propulsion systems in terms of maths.

We are aiming to use an electric motor due to several limitations such as cost and weight. I was therefore wondering if someone could link me to some material which explains the mathematics that need to be attempted in order to work out for example:-

The range equation for an electric motor.
Thrust that can be provided.
How to tell whether or not a battery will be compatible with a certain electric motor. Etc...

SilentIdea
 
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What makes you think electric motors are cheaper and lighter than petrol engines?
 
I've sent you a PM.
 

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