Author Topic: Saab Gripen  (Read 31081 times)

0 Members and 1 Guest are viewing this topic.

Offline elmayerle

  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 6406
Re: Saab Gripen
« Reply #15 on: December 19, 2007, 02:17:05 pm »
With that proviso, i'll agree with you, PD7, the Grippen is what the F-20 should ahve been.  *chuckle* Actually, it comes damn close to one of the proposed F-20/Lavi hybrids that was studied as a joint program 'twwen Northrop and IAI with the intent of reducing the cost of the Lavi.
"Reality is the leading cause of stress amongst those in touch with it."
--Jane Wagner and Lily Tomlin

Offline PolluxDeltaSeven

  • Full scale Arrow in basement
  • *****
  • Posts: 1130
Re: Saab Gripen
« Reply #16 on: December 19, 2007, 02:30:27 pm »
Quote
the Grippen is what the F-20 should ahve been.
Exactly!! That's the right formula! I didn't remember how to say that in English, sorry for the mistake.


Quote
Actually, it comes damn close to one of the proposed F-20/Lavi hybrids that was studied as a joint program 'twwen Northrop and IAI with the intent of reducing the cost of the Lavi.
Hum... I never heard about that. But it gives me an idea!
What about a variant of the Gripen developed with... Israel??

I always loved what the Israelis did (or planed to do) to their Mirage and Phantom derivatives, so why not a Gripen one!! Only for the desert camo and the cool Python missiles!! :wub:  
"laissez mes armées être les rochers et les arbres et les oiseaux dans le ciel"
-Charlemagne-

Coming Soon in Alternate History:
-Battlefleet Galactica
-Republic of Libertalia: a modern Pirate Story

Offline dy031101

  • Needs A Life Outside What-If
  • *****
  • Posts: 2992
  • Prefers tanks and guns over swords and magics
Re: Saab Gripen
« Reply #17 on: December 19, 2007, 02:42:56 pm »
Quote
PD7, I'd be tempted to call the T-50, esp. if they do a single-seat variant, the F-20 ofthe 21st century since so bloody many of its systems trace back to the F-20 (engine, radar/fire control, etc.).
Actually the Taiwanese F-CK-1 should probably be the first one to bear the title.

But then of course, T-50 fits the title even better.

There was a plan for mating F-20/Lavi hybrid?  That gets the imagination going!  :cheers:  
« Last Edit: December 19, 2007, 02:43:28 pm by dy031101 »
To the individual soldiers, *everything* is a frontal assault!

====================

Current Hobby Priority...... Sigh......

To-do list here

Offline dy031101

  • Needs A Life Outside What-If
  • *****
  • Posts: 2992
  • Prefers tanks and guns over swords and magics
Re: Saab Gripen
« Reply #18 on: March 09, 2008, 10:38:58 pm »
I remember seeing on an ancient issue of Air International (or was it Air Force Monthly?) magazine a JAS-39 article that had a line drawing showing the evolution of JAS-39's configuration (before it became the tailless deltawings with canards that we all know).

Does anyone have drawings showing those proposed configurations?
To the individual soldiers, *everything* is a frontal assault!

====================

Current Hobby Priority...... Sigh......

To-do list here

Offline Nils

  • Belgium's "Iceman"
  • Needs A Life Outside What-If
  • *****
  • Posts: 6063
  • Execute in scale 144!
Re: Saab Gripen
« Reply #19 on: November 07, 2008, 12:09:40 pm »
instead of starting a new topic, i looked up this old gripen topic.
this idea him me at work today  :rolleyes:
wonder if there was an alternative to the harrier, F-35 and YAK141

with the F-35 Lightning II development now under fire, particulary from british side, why not transfer the STOVL technology of the F-35 and build it into the Gripen.
the gripen has proven to be a nice agile fighter with many possibilities.
so i wanted to tranfer the F-135 STOVL/lift fan engine into a JAS-39C/D gripen (the newer gripen NG would be to heavy)

then the design i came up with was the JAS-39V Verti-Gripen.
i think these could equip the carriers of the Royal Navy and maybe even encourage the Swedish Navy to aquire a carrier, maybe buy off the RN's Illustrious as she is currently kept in reserve  :rolleyes:
on the bench:

-all kinds of things.

Offline elmayerle

  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 6406
Re: Saab Gripen
« Reply #20 on: November 07, 2008, 12:24:57 pm »
*chuckle* Nils. both Lockheed-Martin and Yakolev found that a back-hinged door for the lift-fan/lift-engines works better (that's one of the most noticeable differences between the X-35B and the F-35B).  You'd have some "interesting" changes setting up lift fans like the F-35B uses since that uses a shaft-driven lift-fan that is driven by the engine directly (in some ways, it's an extreme form of the driveshaft for the AMAD gearboxes most modern combat aircraft are fitted with).
"Reality is the leading cause of stress amongst those in touch with it."
--Jane Wagner and Lily Tomlin

Offline dy031101

  • Needs A Life Outside What-If
  • *****
  • Posts: 2992
  • Prefers tanks and guns over swords and magics
Re: Saab Gripen
« Reply #21 on: November 07, 2008, 12:55:59 pm »
In a past thread regarding the BAe P.112, you mentioned a "'three-poster' with PCB" arrangement as the simplest VSTOL engine installation.

(And I figure that a VSTOL JAS-39 might be viewed as a revival of BAe P.112......)

Two questions:

1. would you describe this "'three-poster' with PCB" arrangement?

2. is comparison between the "'three-poster' with PCB" arrangement and the one adopted by F-35B possible?
« Last Edit: November 07, 2008, 01:05:07 pm by dy031101 »
To the individual soldiers, *everything* is a frontal assault!

====================

Current Hobby Priority...... Sigh......

To-do list here

Online Hobbes

  • Stores peanuts in his mailbox
  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 6581
    • Acme Engineering
Re: Saab Gripen
« Reply #22 on: November 07, 2008, 01:33:09 pm »
In a past thread regarding the BAe P.112, you mentioned a "'three-poster' with PCB" arrangement as the simplest VSTOL engine installation.

(And I figure that a VSTOL JAS-39 might be viewed as a revival of BAe P.112......)

Two questions:

1. would you describe this "'three-poster' with PCB" arrangement?

2. is comparison between the "'three-poster' with PCB" arrangement and the one adopted by F-35B possible?


Imagine an RR Pegasus with a single central nozzle at the rear instead of the split exhaust. PCB=Plenum Chamber burning, i.e. afterburning in the nozzles.

This arrangement was planned for the Hawker P.1214 and P.1216 projects:


Offline GTX

  • Beyond The Sprues Guy
  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 10817
  • "Princess"
    • www.beyondthesprues.com/Forum
Re: Saab Gripen
« Reply #23 on: November 10, 2008, 11:58:57 pm »
Speaking of Gripens, here is a nice Indian Gripen rendering I was sent today:



Regards,

Greg
All hail the God of Frustration!!!

Offline dy031101

  • Needs A Life Outside What-If
  • *****
  • Posts: 2992
  • Prefers tanks and guns over swords and magics
Re: Saab Gripen
« Reply #24 on: November 18, 2008, 05:39:05 pm »
Imagine an RR Pegasus with a single central nozzle at the rear instead of the split exhaust. PCB=Plenum Chamber burning, i.e. afterburning in the nozzles.

Actually, if such a scheme is to be implemented in a Gripen...... would the engine have looked like the one used by X-32?
« Last Edit: November 18, 2008, 06:51:14 pm by dy031101 »
To the individual soldiers, *everything* is a frontal assault!

====================

Current Hobby Priority...... Sigh......

To-do list here

Offline Amphion

  • Makes own decals
  • ***
  • Posts: 382
  • No matter where you go - there you are
    • Amphion Home Page
Re: Saab Gripen
« Reply #25 on: November 24, 2008, 12:08:14 pm »
Here's the latest list of potential Gripen buyers and those who, to this date, has signed up:

Fighter procurement processes where Saab is involved
Switzerland: Proposal handed in, July 2008
The Netherlands: Saab invited to participate in the procurement process, August 2008
Brazil: Gripen chosen as one of three candidates, October 2008
Denmark: Binding proposal handed in, November 2007
India: Binding proposal handed in, April 2008
Romania: Binding proposal handed in, 2008
Bulgaria: A proposal is being prepared
Croatia: A proposal is being prepared

Countries who have chosen Gripen
Sweden
South Africa
Czech Republic
Thailand
Hungary
Amphion

Offline GTX

  • Beyond The Sprues Guy
  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 10817
  • "Princess"
    • www.beyondthesprues.com/Forum
Re: Saab Gripen
« Reply #26 on: February 20, 2009, 11:53:39 am »
Some more Indian Gripen renderings:






Regards,

Greg
« Last Edit: February 20, 2009, 12:58:38 pm by GTX »
All hail the God of Frustration!!!

Offline ysi_maniac

  • Kit Surgeon First Class
  • Needs A Life Outside What-If
  • *****
  • Posts: 6188
Re: Saab Gripen
« Reply #27 on: September 22, 2009, 11:05:54 am »
Will die without understanding this world.

Offline dy031101

  • Needs A Life Outside What-If
  • *****
  • Posts: 2992
  • Prefers tanks and guns over swords and magics
Re: Saab Gripen
« Reply #28 on: September 22, 2009, 12:39:59 pm »
"Slient Gripen"?  ;D
To the individual soldiers, *everything* is a frontal assault!

====================

Current Hobby Priority...... Sigh......

To-do list here

Offline Scooterman

  • The Transporter
  • What-IF SIG
  • Needs A Life Outside What-If
  • *****
  • Posts: 3081
Re: Saab Gripen
« Reply #29 on: October 02, 2009, 08:12:25 pm »
NaoH just sent me this pic.  Dunno where from, but this is too cool not to post.  Plus it's in the sexiest scheme ever.

Now if somebody would just make a conversion for the NG. :banghead:




(edit: thanks to the mod who moved this here.  I was tried when I first posted it!!!)
« Last Edit: October 03, 2009, 04:47:48 am by Scooterman »