elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Extension of the ACT/FHS Experimental Flight Envelope

Hamers, Mario and Graser, Herbert and Bickel, Norbert and Doktorczyk, Marek and Kistler, Herbert and Lantzsch, Robin and Krebs, Waldemar (2009) Extension of the ACT/FHS Experimental Flight Envelope. American Helicopter Society 65th Annual Forum, 27.-29. Mai 2009, Grapevine, Texas, USA.

Full text not available from this repository.

Abstract

The experimental flight envelope in the low speed corner of the EC135 research helicopter ACT/FHS (Active Control Technology / Flying Helicopter Simulator) is restricted to a safety height of at minimum 15 feet above ground. Present and future research programs demand, however, an experimental operation at lower heights, including take-off and landing. The current experimental envelope is defined in dependence of certified control rate runaway limiters guaranteeing a safe operation when the experimental flight control computer is in the loop. Therefore, the existing runaway limiters have been tuned and in a common effort, the German Aerospace Center (DLR) and Eurocopter Deutschland (ECD), have conducted flight tests with the ACT/FHS helicopter in order to define and verify a new extended experimental flight envelope. Flight test results showed that the tuned runaway limiters, indeed, allow safe experimental operation below 15 feet, including take off and landing, without affecting pilot control authority. After final demonstration the new envelope is certified and approved by the German Aviation Authority (LBA).

Item URL in elib:https://elib.dlr.de/59765/
Document Type:Conference or Workshop Item (Paper)
Title:Extension of the ACT/FHS Experimental Flight Envelope
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hamers, MarioECDUNSPECIFIED
Graser, HerbertECDUNSPECIFIED
Bickel, NorbertECDUNSPECIFIED
Doktorczyk, MarekECDUNSPECIFIED
Kistler, HerbertUNSPECIFIEDUNSPECIFIED
Lantzsch, RobinUNSPECIFIEDUNSPECIFIED
Krebs, WaldemarUNSPECIFIEDUNSPECIFIED
Date:May 2009
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
American Helicopter Society (AHS), UNSPECIFIED
Status:Published
Keywords:FHS, Limiter
Event Title:American Helicopter Society 65th Annual Forum
Event Location:Grapevine, Texas, USA
Event Type:Conference
Event Dates:27.-29. Mai 2009
Organizer:American Helicopter Society (AHS)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Lantzsch, Robin
Deposited On:19 Oct 2009 14:49
Last Modified:19 Oct 2009 14:49

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.