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Constance SIGNED

Flight Critical Wireless Slip Ring for Civil Tiltrotor

Total Cost €


EC-Contrib. €






 Constance project word cloud

Explore the words cloud of the Constance project. It provides you a very rough idea of what is the project "Constance" about.

critical    wear    start    brushes    civil    ngctr    contactless    tests    harsh    provides    incorporated    constance    signal    distinguishing    domain    environments    assemblies    mechanically    slip    market    rotor    ltd    rings    fp7    tiltaero    drawbacks    technique    fault    certified    data    converters    safe    size    speeds    aircraft    asks    extensive    manager    ground    delivered    qualification    opportunity    industrial    wireless    flight    patented    orientation    aerospace    ring    nlr    integrity    generation    expertise    models    stator    fixed    few    competitiveness    nicetrip    extension    rotating    commercial    tiltrotor    parts    redundant    proven    rotational    smart    electrical    designed    stationary    form    transferring    conventional    plan    clearance    cs2    transfer    power    trl    interface    tolerant    noise    contra    wing    improvement    programs    compromised    cfp    fp5    electronics    combine    environment    ddc    clear    fairly   

Project "Constance" data sheet

The following table provides information about the project.


Organization address
address: Anthony Fokkerweg 2
postcode: 1059CM

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Total cost 861˙530 €
 EC max contribution 748˙405 € (87%)
 Programme 1. H2020-EU. (IADP Fast Rotorcraft)
 Code Call H2020-CS2-CFP04-2016-02
 Funding Scheme CS2-IA
 Starting year 2017
 Duration (year-month-day) from 2017-06-01   to  2022-07-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
2    DDC ELECTRONICS LIMITED UK (RYDE) participant 261˙625.00


 Project objective

Slip rings for transferring power and data commonly form the interface between a rotating environment and a stationary domain. For aerospace applications, currently only conventional slip rings, with brushes, are on the market. The technique is proven, fairly reliable and robust, but there are clear drawbacks: wear, size and compromised signal integrity due to electrical noise. A few commercial wireless slip rings are now available, however not designed and certified for aerospace applications. Flight-critical applications in harsh environments require a fault-tolerant design. The future need for qualification has to be taken into account from the start of the development. The call for proposal asks for the development of wireless slip rings for power and data transfer for a flight-critical application within the Next Generation Civil Tiltrotor (NGCTR). This CfP is a technical and industrial challenge, which provides an opportunity for improving competitiveness on this important improvement part of the NGCTR program of the CS2 work plan. For the development of Constance, NLR will combine their tiltrotor experience from the FP5 TILTAERO and FP7 NICETRIP programs with their patented wireless slip ring design and knowledge from the Contra-Rotating Open Rotor project of the CS2 Smart Fixed Wing Aircraft program. The distinguishing feature of the Constance slip ring is the specific orientation of the rotor and stator parts of the contactless slip ring which makes the design mechanically robust, safe and fault tolerant up to high rotational speeds. For the extension towards the flight-critical application on the tiltrotor the expertise of DDC Electronics Ltd. on power converters will be fully incorporated into the proven technology. In Constance, three redundant slip ring assemblies with flight clearance will be delivered to the topic manager for ground and flight testing on their NGCTR and two models will be used for extensive qualification tests. Constance will end the project with TRL 6.

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The information about "CONSTANCE" are provided by the European Opendata Portal: CORDIS opendata.

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