Summary
Title
Data supporting "Set-Based Design Techniques for the Systematic and Interactive Exploration of Complex Product Evolvability”
Date and location 
09/12/2024 – Cranfield university 
Contact information for person collecting data
Sergio Jimeno Altelarrea
Research Fellow
Cranfield University
s.jimeno@cranfield.ac.uk
Methods for data generation
For utility data: in-house extension of FLOPS [1] capabilities to include liquid hydrogen tanks.
For cost and evolvability data: in-house implementation and extension for liquid hydrogen aircraft of the method described in [2].

[1] NASA Langley Research Centre, “Flight Optimization System (FLOPS) Software v.9 (LAR-18934-1).” 2024. Accessed: May 24, 2024. [Online]. Available: https://software.nasa.gov/software/LAR-18934-1
[2] A. S. J. Van Heerden, “Computational Techniques for Aircraft Evolvability Exploration during Conceptual Design,” PhD Thesis, Cranfield University, 2019.
Experimental conditions
Not applicable
QA procedures
Resulting values were inspected to check if their magnitude correspond to what is expected from previous research and similar aircraft.
Licenses and restrictions
Attribution-NonCommercial-ShareAlike 4.0 International
http://creativecommons.org/licenses/by-nc-sa/4.0/ 
Structure

This dataset contains three files:
•	near-future.xlsx: cost and utility data for near future designs.
•	far-future.xlsx: cost and utility data (per scenario) for far future designs.
•	redesign-costs.xlsx: redesign cost matrix.
Abbreviations/Codes
USD: United States Dollars.
KE: Kerosene.
SAF: Sustainable Aviation Fuel.
LH2: Liquid Hydrogen.
E3: Expensive KE Expensive SAF Expensive LH2
EIE: Utility Expensive KE Inexpensive SAF Expensive LH2
EII: Utility Expensive KE Inexpensive SAF Inexpensive LH2
File Formats
.csv


near-future.xlsx
This file contains tabular data with the following columns:
Name
Description
Id
Unique identifier for the near-future aircraft design.
Cost
Cost of the aircraft in USD.
Utility Current
Fuel cost in USD/pax/km for near-future scenario

far-future.xlsx
This file contains tabular data with the following columns:
Name
Description
Id
Unique identifier for the far-future aircraft design.
Cost
Cost of the aircraft in USD.
Utility Expensive KE Expensive SAF Expensive LH2 (E3)
Fuel cost in USD/pax/km for far-future scenario E3
Utility Expensive KE Inexpensive SAF Expensive LH2 (EIE)
Fuel cost in USD/pax/km for far-future scenario EIE
Utility Expensive KE Inexpensive SAF Inexpensive LH2 (EII)
Fuel cost in USD/pax/km for far-future scenario EII
redesign-costs.xlsx
This file should be interpreted as a matrix:
Rows
Each row corresponds to a particular near-future design, which is identified by the first element of the row (Id).
Columns
Each column corresponds to a particular far-future design, which is identified by the first element of the column (Id).
Values
The rest of the values correspond to the redesign cost between a near-future and a far-future design in USD. 
E.g. the intersection of the sixth row (with Id 4), with the second column (with Id 73) contains the redesign cost (1 677 537 000 USD) of design 73 assuming it is derived from design 4.