The Mass Growth Factor – Snowball Effects in Aircraft Design (doi:10.7910/DVN/6NHDDP)
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Document Description

Citation

Title:

The Mass Growth Factor – Snowball Effects in Aircraft Design

Identification Number:

doi:10.7910/DVN/6NHDDP

Distributor:

Harvard Dataverse

Date of Distribution:

2020-10-04

Version:

1

Bibliographic Citation:

Cheema, John Singh, 2020, "The Mass Growth Factor – Snowball Effects in Aircraft Design", https://doi.org/10.7910/DVN/6NHDDP, Harvard Dataverse, V1, UNF:6:3gYWITsXiF9te9Db0K1uhQ== [fileUNF]

Study Description

Citation

Title:

The Mass Growth Factor – Snowball Effects in Aircraft Design

Alternative Title:

Links to all related documents:

Identification Number:

doi:10.7910/DVN/6NHDDP

Authoring Entity:

Cheema, John Singh (Hamburg University of Applied Science)

Other identifications and acknowledgements:

Scholz, Dieter

Date of Production:

2020-03-31

Software used in Production:

Excel

Distributor:

Harvard Dataverse

Access Authority:

Scholz, Dieter

Depositor:

Scholz, Dieter

Date of Deposit:

2020-03-31

Series Name:

Digital Library - Projects and Theses - Prof. Dr. Scholz

Holdings Information:

https://doi.org/10.7910/DVN/6NHDDP

Study Scope

Keywords:

Engineering, Aeronautics, Airplanes, Design, Airplanes--Performance, Airplanes--Fuel consumption, Aerodynamics, Luftfahrt, Luftfahrzeug, Flugmechanik, Passagierflugzeug, Kraftstoffverbrauch, Aerodynamik, Reichweite, Betriebskosten, aircraft, mass, operating empty mass, payload, aircraft design, mass growth, SFC, range, Direct Operating Costs, DOC, Flugzeug, Masse, Betriebsleermasse, Nutzlast, Flugzeugentwurf, Massenzunahme

Topic Classification:

Aerospace

Abstract:

Purpose – This project work shows a literature survey, clearly defines the mass growth factor, shows a mass growth iteration, and derives an equation for a direct calculation of the factor (without iteration). Definite values of the factor seem to be missing in literature. To change this, mass growth factors are being calculated for as many of the prominent passenger aircraft as to cover 90% of the passenger aircraft flying today. The dependence of the mass gain factor on requirements and technology is examined and the relation to Direct Operating Costs (DOC) is pointed out. --- Methodology – Calculations start from first principles. Publically available data is used to cal-culate a list of mass growth factors for many passenger aircraft. Using equations and the result-ing relationships, new knowledge and dependencies are gained. --- Findings – The mass growth factor is larger for aircraft with larger operating empty mass ratio, smaller payload ratio, larger specific fuel consumption (SFC), and smaller glide ratio. The mass growth factor increases much with increasing range. The factor depends on an increase in the fixed mass, so this is the same for the payload and empty mass. The mass growth factor for subsonic passenger aircraft is on average 4.2, for narrow body aircraft 3.9 and for wide body aircraft (that tend to fly longer distance) 4.9. In contrast supersonic passenger aircraft show a factor of about 14. --- Practical implications – The mass growth factor has been revisited in order to fully embrace the concept of mass growth and may lead to a better general understanding of aircraft design. --- Social implications – A detailed discussion of flight and aircraft costs as well as aircraft de-velopment requires detailed knowledge of the aircraft. By understanding the mass growth fac-tor, consumers can have this discussion with industry at eye level. --- Originality/value – The derivation of the equation for the direct calculation of the mass growth factor and the determination of the factor using the iteration method for current aircraft was not shown in the examined literature.

Kind of Data:

Program and Data

Methodology and Processing

Sources Statement

Data Access

Notes:

This is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, License Version 3. The software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details: http://www.gnu.org/licenses/gpl.html

Other Study Description Materials

Related Publications

Citation

Title:

Cheema, John Singh, 2020. The Mass Growth Factor – Snowball Effects in Aircraft Design. Project. Hamburg University of Applied Sciences, Aircraft Design and Systems Group (AERO). Available from:

Bibliographic Citation:

Cheema, John Singh, 2020. The Mass Growth Factor – Snowball Effects in Aircraft Design. Project. Hamburg University of Applied Sciences, Aircraft Design and Systems Group (AERO). Available from:

File Description--f4101094

File: Evaluation_90percent_PassengerAircraft.tab

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Data

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File: Iteration_Method_Example_Boeing767-300.tab

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Data

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