1. THE FLYGSYSTEM 2020 (FS 2020) SWEDENS OWN STEALTH
AIRCRAFT
2. INTRODUCTION The Flygsystem 2020 ("Flight System 2020",
internationally abbrevaiated as FS 2020), is an ongoing project by
the Swedish Air Force to develop a stealth fighter by 2020. Little
public information exists about the project, which might not be
possible due to recent defense budget cuts and there are no
official statements telling what stage of development that the
project has currently reached. In 2012, Lieutenant Colonel Lars
Helmrich of the Swedish Air Force asked members of the Riksdag to
consider the development of a new jet fighter or to upgrade all
present JAS 39 multirole fighters to the NG model, claiming that
the early versions of the aircraft will be useless by 2020.
3. RESEARCH Research study from the Swedish Material Board
(FMV) initiated in 2006. Aeronautical design and integration of a
Generic Future Fighter (GFF) with stealth capabilities,
super-cruise and long range. Parties involved: Saab AB Swedish
Defense Research Agency (F01) Volvo Aero LinkOping University (LiU)
Royal Institute of Technology (KTH).
4. CONCEPT Three internal payload bays in the fuselage Canard
configuration (i.e. a stealthy development of the Gripen system)
Canted fixed fins by stealth reasons All moveable canards
5. SPECIFICATIONS Multirole Stealth Internal payload bays
Super-cruise Integration of future sensors and system architecture
Studies of a new engine Scaled demonstrator
6. PROTOTYPE 13% down-scaled demonstrator Main influencing
factors: Handling Transportability Weight estimation Availability
of jet engines Careful landing gear installation
7. IN THE END.. The latest subscale demonstrator that has been
designed and manufactured at Linkoping University for a very low
cost 50 k. Incorporates the results from a research initiated by
the Swedish Material Board (FMV) in 2006. After a successful maiden
flight, the flight testing will continue during summer 2011 Water
tunnel and CFD analyses are/have been carried out and indicate that
vortex brake-down at higher angles of attack seem to interact with
the fins. The demonstrator will be flown to specifically explore
the effects of the vortices on the fins and the risk for potential
problems.
