The Brevity ®Amphibious Aircraft...could make elegance your everyday affair!

GRA-CV bedrijfs logo

Welcome at the website of the Brevity Seaplane

A little history first...

The idea for this aircraft-concept was conceived by Chris Ryff (GRA-CV) from the Netherlands who established the project almost 9 years ago.  It contains the development of a unique amphibious aircraft concept which has been named "The Brevity".  Encouraged by a friend Chris made contact with a manufacturing company who was quickly convinced about the Brevity's potential.

Due dilligence made clear that this concept was worthwhile and merited further development and testing. Because of these positive findings, It was decided to develop the aircraft in a separate project entity, (the Brevity Ltd) This way, the project could progress more independently and leave also an option for others to join in as well.

Short description of the aircraft

The design of The Brevity is based on an innovative concept that addresses the major design flaws inherent with current boat-hulled amphibious seaplanes.  The Brevity concept is principally aimed at professional, recreational and militairy users.  

The Brevity will:

-   carry up to four people,

    -   have limited aerobatics capabilities,

    -   have a range estimated to be between 750 and 1000 nm (1,390 and 1,850 km)

    -   have performance parameters based on the Allison  250-C20R_t gasturbine engine, which makes the aircraft even more reliable.

The Brevity is a mid-wing configuration aircraft with cruciform tail and retractable landing gear.  The most remarkable design feature is the arrangement of the propulsive section - this innovation makes the aircraft unique in its class and yields technical, aerodynamic and flying advantages.  Proactive marketing of these design benefits will provide commercial advantage.

Market positioning of the Brevity

Given its innovative design combined with features such as an IFR-instrument panel, LCD- and GPS technologies, together with retractable landing gear, the aircraft is to be positioned in the professional, sport and leisure sectors.

Among the most important competitors in the market for four-seat aircraft are designs such as: the Katana DA-40; Cirrus Design’s SR-20; Cessna Corporation’s new 172 ME and 185; Lake Aircraft; the Sea-Fire and Sea-Star; and, products from the New Piper Corporation.

Associates

SENTER, a subsidiary of the Dutch Ministry of Economic Affairs, provided a subsidy for a technical feasibility study into The Brevity concept. This has led to the development of The Brevity up to the present day.

The above is a brief overview of The Brevity project.  We will be happy to provide further details on written request.  For terms and conditions to participate in The Brevity project, please click the “participation” banner.

 Participation

GRA-CV seeks entrepreneurial, technical and financial partners for the development of The Brevity aircraft.  For this purpose, a limited company has been formed.  

Immediate objectives are to complete the design and to build a 'proof of concept'.  In the following stage, certification and production will be conducted according to JAA (JAR/FAR-23) standards.

Should you be interested in participation in The Brevity project, we kindly ask you to inquire at the address below or send an e-mail to: info@gra-cv.com

Note: No pictures of details, in whole or in part, of any kind of The Brevity design are shown on this site or anywhere else. Any designs of The Brevity concept appearing elsewhere do so without our permission and may well be fraudulent.  Please notify us at info@gra-cv.com in such cases.

 © 1993-2005 all rights reserved by GRA-CV and Mr J Kappers.


The Brevity Trade Mark logo


Ducted Fan Animation

Fluid Dynamic Analysis at Flow Science Manchester

Click here to see the Brevity Design Parameters

Click here to see the Benefits of the Brevity concept!

Click here to get involved in the Brevity Project!

Click here if you want to sponsor the Brevity!

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