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ALLEGRA Design Airspeeds and Preliminary Loads

Schmidt, Hauke and Klimmek, Thomas (2013) ALLEGRA Design Airspeeds and Preliminary Loads. DLR-Interner Bericht. DLR IB 232-2012 J 07, 49 S.

Full text not available from this repository.

Abstract

The report contains the design airspeeds and the preliminary loads based on manoeuvre and gust V-n diagrams for the ALLEGRA configuration. For the gust envelopes the Pratt formula of ACJ 25 was used. The ALLEGRA configuration is based on the final LamAiR configuration developed in the DLR project LamAiR. The ALLEGRA configuration has forward swept wings, a T-Tail, and rear fuselage mounted nacelles. The 150 passenger aircraft is originally designed for laminar flow and less fuel consumption. Within this report all necessary design speeds are given and all the relevant data for manoeuvre- and gust load analysis with respect to CS-25 and JAR-25 requirements are computed. For the manoeuvre V-n diagrams the actual requirements, the "Certification Specifications for Large Aeroplanes CS-25" from the European Aviation Safety Agency (EASA) have been used. To avoid time consuming rational analysis, as required by CS-25, gust V-n diagrams have been established by using the Pratt formula of JAR-25. Therewith the gust load factors for the rigid aircraft are estimated.

Item URL in elib:https://elib.dlr.de/80956/
Document Type:Monograph (DLR-Interner Bericht)
Title:ALLEGRA Design Airspeeds and Preliminary Loads
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmidt, Haukehauke.schmidt (at) dlr.deUNSPECIFIED
Klimmek, Thomasthomas.klimmek (at) dlr.deUNSPECIFIED
Date:January 2013
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:49
Status:Published
Keywords:gustload, manoeuvreload, V-n diagram, Pratt formular, Flightenvelope, design airspeed, loadfactor, CS-25, ALLEGRA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:01 Feb 2013 11:23
Last Modified:01 Feb 2013 11:23

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