Cessna 310 Propeller Theory Essay

1465 Words Mar 8th, 2013 6 Pages
Table of Contents

Page 1 - Contents

Page 2 - Introduction

Page 2 - Activity 1: Cessna-310 Performance Data

Page 3-4 - Activity 2: Propeller Parameter Definitions

Page 4 - Activity 3: Results of Engine RPM vs Fuel Flow

Page 5-6- Activity 4: Axial Momentum Theory

Page 7-8 - Activity 5: Propeller Efficiency & Power Coefficient

Page 8-9- Activity 6: Fuel Flow

Page 9 - Activity 7: Conclusion

Page 10- Reference

Introduction

The function of a propeller on an aircraft is to provide propulsive force. This lab report was aimed at studying and analysing the propeller and some engine properties of a Cessna 310R. The axial momentum theory, advance ratio and the energy method for fuel
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Taking the pitch angle as 30o the propulsive efficiency for these three rpms is 0.54, 0.74 and 0.92 with reference to the above Propeller Efficiency-Advance Ratio graph.

Power Coefficient
At 47m/s (take-off speed), the advance ratio at 1000 RPM, 1500 RPM and 2000 RPM is 0.64, 0.86 and 1.4 respectively. Taking the twist angle as 45o the power coefficient for these three rpms is 0.003, and 0.029 for 1000rpm and 1500rpm respectively with reference to the above Propeller Efficiency-Advance Ratio graph.

ACTIVITY 6

Fuel flow

The table below shows the measured values of the fuel flow from the cockpit fuel flow indicator.
|RPM |ṁf |

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