• Hi Guest! Forum rules have been updated. All users please read here.

SAAB FS2020 Stealth Fighter Concept

Trident

CLEARANCE: Top Secret
Senior Member
Joined
May 8, 2006
Messages
846
Reaction score
27
http://www.flightglobal.com/blogs/the-dewline/2010/04/video-stealth-fighter-demonstr.html

Looks quite similar to the (twin-seat, twin-engine) design proposed by Saab to South Korea for co-development a while back. If there is anything special about the canards related to Saab's patented signature reduction methods, I can't see it - although the configuration is notable for not having the canards and the wing in the same plane, as most canarded stealth designs do.
 

Stargazer2006

CLEARANCE: Above Top Secret
Staff member
Senior Member
Joined
Jun 25, 2009
Messages
13,242
Reaction score
94
Very interesting and amazingly realistic in flight. Any explanation as to why a naturally unstable design can fly so well in model form? I gather that a real life, full-size article would normally fly using complex fly-by-wire split-second adjustments to stay aloft... but can one emulate that on such a small replica? Thanks for any insight on this and sorry for such a naive question from a non-expert.
 

Sundog

CLEARANCE: Top Secret
Senior Member
Joined
Aug 2, 2006
Messages
2,629
Reaction score
42
To me it looks like the original Lockheed Martin STOVL fighter design. However, IIRC, the wing and canard are too small to accurately model the flight characteristics of a full size vehicle. I remember we studied this in school and I believe it's a function of Reynolds Number, but that was a long time ago. Go back and look at pictures of those subscale models that were flown of the X-29 before the full scale aircraft was attempted. The wings and canard seem much larger than the fuselage, proportionally speaking. That was so they could more accurately model how the full size aircraft would fly.
 

mz

CLEARANCE: Top Secret
Joined
May 28, 2007
Messages
683
Reaction score
1
The model doesn't need to be naturally unstable?
Move the cg forward and adjust the incidences.

Alternatively it could use gyros. (MEMS perhaps, they're tiny and cheap.)
 

Creative

CLEARANCE: Secret
Joined
Feb 15, 2008
Messages
241
Reaction score
1
It looks a little different from a model of a SAAB project posted here by Matej http://www.secretprojects.co.uk/forum/index.php/topic,1161.15.html but I wonder if they're still related. The video description did say "They got CAD drawing from SAAB..." ???
 

Woody

Passionate about the advancement of technology
Joined
Mar 8, 2007
Messages
288
Reaction score
0
Website
www.freewebs.com
I, for one, am always delighted to see new fighter designs and unlike most, this one has made it to the flying subscale model stage. I'm sure many of us have contemplated what a stealth Eurofighter or even a stealth F-16 would be like, well good on Saab for giving us the stealth Grippen.

It was mentioned briefly in Flight internationals latest piece on the Grippen NG but this article from Linköping University's website is more informative.

The division of Fluid and Mechatronic Systems, FluMeS at the department of Management and Engineering, have been rewarded a contract from SAAB and FMV to realise and build a scaled demonstrator of a generic fighter concept.

The concept constitutes a goal and common study object for the defence long term research and development strategy within aeronautics. The concept is a common development between SAAB and FOI with focus on stealth capability, internal load bays and “super cruise” capability.
http://www.iei.liu.se/flumes/aero/gff?l=en

Check out the video of the maiden flight on their site. I would have attached it but it's WMV file.

The wireframe image comes from:-

http://robotpig.net/aerospace-news/saab-new-stealth-fighter-program-_1827

These images are from an official SAAB presentation for a next generation fighter. It is bigger than the very compact Gripen and has two engines. It has a faceted fuselage with small internal weapon bays for air-to-air missiles. Bigger payload will be carried externally and there will be provision for tight integration with UCAVs.
Cheers Woody
 

Attachments

Colonial-Marine

Fighting the UAV mafia.
Joined
Oct 5, 2009
Messages
634
Reaction score
6
Very interesting, I wonder if the MRF program would have turned out any proposals like this.
 

pesholito

CLEARANCE: Restricted
Joined
Jun 9, 2008
Messages
40
Reaction score
0
Isn't it the same proposal?

http://www.secretprojects.co.uk/forum/index.php/topic,4739.0/highlight,stealthy+saab.html
 

Woody

Passionate about the advancement of technology
Joined
Mar 8, 2007
Messages
288
Reaction score
0
Website
www.freewebs.com
pesholito said:
Isn't it the same proposal?

http://www.secretprojects.co.uk/forum/index.php/topic,4739.0/highlight,stealthy+saab.html
Yeah you're right but now we have a picture of the model and video if you follow the link.

http://www.iei.liu.se/flumes/aero/gff?l=en

Cheers, Woody
 

ohpossum

CLEARANCE: Restricted
Joined
Sep 10, 2008
Messages
15
Reaction score
0
I'd bet solid money that the whole thing is an animation. 1:13 scale and the camera is that steady??? Everything about that video seems fake.
 

prolific1

CLEARANCE: Secret
Senior Member
Joined
Mar 25, 2008
Messages
450
Reaction score
1
Website
lost-aviation.blogspot.com
I'd bet solid money that the whole thing is an animation. 1:13 scale and the camera is that steady??? Everything about that video seems fake.
The unnaturally steady camera work once it is airborne is not even the most obvious "tell" that this video is indeed fake. This is a poor example of compositing on a film scale, though a decent one on...say...a TV scale. The plates for the aircraft and the stock footage don't mesh well regarding the ambient occlusion in the taxi shot but this is not so cleverly masked by the text that comes on screen. The aircraft departure and taxi footage would be the biggest giveaways however they both utilize editing to make close examination difficult.
 

flateric

CLEARANCE: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
8,801
Reaction score
250
FS2020 weapon bays nuts'n'guts
http://www2.foi.se/rapp/foir2775.pdf
 

Trident

CLEARANCE: Top Secret
Senior Member
Joined
May 8, 2006
Messages
846
Reaction score
27
Great find! This would seem to confirm that Saab's involvement with the RC demonstrator was more in-depth than some believed. Rather than being more or less generic, the model obviously follows a full-size configuration which was studied in some detail, including weapons bay placement.
 

Matej

Multiuniversal creator
Joined
Feb 13, 2006
Messages
2,617
Reaction score
40
Website
www.hitechweb.genezis.eu
Source: http://paralay.com/stat/Bulat_16.pdf
Original source: Marlene Svensson. A CFD Investigation of a Generic Bump and its Application to a Diverterless Supersonic Inlet. Examensarbete nstitutionen för ekonomisk och industriell utveckling LIU-IEI-TEK-A--08/00427--SE.
 

Attachments

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,723
Reaction score
212
Website
deeptowild.blogspot.com
Marlene Svensson. A CFD Investigation of a Generic Bump and its Application to a Diverterless Supersonic Inlet. Examensarbete nstitutionen för ekonomisk och industriell utveckling LIU-IEI-TEK-A--08/00427--SE.

http://liu.diva-portal.org/smash/get/diva2:221/FULLTEXT01
 

Avimimus

CLEARANCE: Top Secret
Joined
Dec 16, 2007
Messages
1,915
Reaction score
15
Trident said:
Looks quite similar to the (twin-seat, twin-engine) design proposed by Saab to South Korea for co-development a while back. If there is anything special about the canards related to Saab's patented signature reduction methods, I can't see it - although the configuration is notable for not having the canards and the wing in the same plane, as most canarded stealth designs do.
I suppose the tailplane could be used in cruising flight, with the Canard only activating in WVR engagements and during take-off/landing. This could allow quite a bit of optimisation when in the fixed position?
 

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,723
Reaction score
212
Website
deeptowild.blogspot.com
Flow field of Generic Future Fighter wind tunnel model.

Source:
http://www.emeraldinsight.com/journals.htm?issn=0002-2667&volume=84&issue=3&articleid=17032158&show=html

Four-view drawing of Generic Future Fighter.

Source:
http://www.emeraldinsight.com/journals.htm?issn=0002-2667&volume=84&issue=3&articleid=17032158&show=html

Artist's impression of Generic Future Fighter.

Source:
http://vanveken.blogspot.com/2011/07/gff-saab.html
 

Attachments

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,723
Reaction score
212
Website
deeptowild.blogspot.com
Is this design also known as the Saab P305 while the twin-engined version was pitched to South Korea for K-FX known as the P306?

Source:
http://www.militaryphotos.net/forums/showthread.php?84527-Gripen-News-Thread/page150
 

Attachments

SlowMan

I really should change my personal text
Joined
Sep 10, 2012
Messages
154
Reaction score
0
DonaldM said:
Is this design also known as the Saab P305 while the twin-engined version was pitched to South Korea for K-FX known as the P306?
P305 and the FS2020 are the same thing. P306 came to exist only because Korea required a twin engine jet, not because Saab wanted to pursue it.

However, P305 appears to be dead and bits of it will be incorporated into the Gripen E/F instead, such as the DSI.
 

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
24,119
Reaction score
1,007
From the File; DEVELOPMENT OF A SUBSCALE FLIGHT TESTING PLATFORM FOR A GENERIC FUTURE FIGHTER


here is the SAAB fighter with winglets.
 

Attachments

fightingirish

CLEARANCE: Top Secret
Senior Member
Joined
Jun 3, 2006
Messages
2,160
Reaction score
144
The lastest picture of Saab's Stealth Fighter Concept was shown at the Gripen E Rollout today.
RAeSTimR said:
Sixth-gen Swede? Interesting notional post-Gripen manned/unmanned fighter concept from @Saab #avgeek
hesham said:
From the File; DEVELOPMENT OF A SUBSCALE FLIGHT TESTING PLATFORM FOR A GENERIC FUTURE FIGHTER
here is the SAAB fighter with winglets.
Sources at Twitter:
www.twitter.com/RAeSTimR
www.twitter.com/GripenNews
 

Attachments

fightingirish

CLEARANCE: Top Secret
Senior Member
Joined
Jun 3, 2006
Messages
2,160
Reaction score
144
https://twitter.com/GripenNews/status/848034682549792768 ;) ;D
 
Top