1311. Preliminary Weight Estimation of Engine Section Structure
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Paper
Abstract
The weight of the engine section is a part of the aircraft structural weight which has not been given much attention by weight methodology. This paper discusses a method of estimating the weight of the following engine section components – engine mounts, nacelles or cowlings, firewalls, and pylon support struts such as used on jet driven aircraft. Air intakes are not included. Parameters usually available from preliminary design three-view drawings and group weight statements are used. Factors for estimating the weight effects of propeller or jet drive are included along with factors for allowing for special features such as work platforms. A plot of calculated versus actual weight is included to show the accuracy of the method for a broad range of aircraft.
