Design and Analysis of a Contra Rotating Propeller System

Mahir Singh1, Manthina Charan2, Rahul Pandey3, Anshu Dhama4, Mayank5, Manish Singh Mattu6 Ansh Dhanjal7, Abhishek Tandon8 and Rajendra Mane9

SCHOOOL FOR AIRCRAFT MAINTENANCE ENGINEERING

Department of Mechanical B1.1 | Academic Year: 2024–26
1Abhishek.Tandon@igesame.com

2 Rajendra.Mane@InterGlobe.com

3manishjatt2101@gmail.com

1. Abstract
The Contra Rotating Propeller (CRP) is an advanced propulsion technology in which two coaxial propellers rotate in opposite directions on the same shaft axis. This configuration significantly improves propulsive efficiency by recovering the swirl energy that is wasted in the slipstream of a conventional single-rotation propeller. This project presents a detailed study of the design, working principles, component selection, electronic monitoring, and practical implementation of a contra rotating propeller system.

The objective of this project is to understand the aerodynamic and mechanical principles of CRP systems, analyze the functions of each major component, and develop a prototype model that demonstrates contra-rotating thrust generation with real-time performance monitoring. The project includes thrust and torque measurement, RPM monitoring via microcontroller-based sensing, cost estimation, and a five-day implementation plan.

The study highlights the importance of swirl recovery, torque balance, and efficiency improvement in modern propulsion systems. CRP technology finds applications across marine propulsion, aviation, unmanned aerial vehicles (UAVs), coaxial helicopters, and renewable energy systems. This project provides foundational practical knowledge for further study in aerospace and mechanical engineering.