Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

first public flight of Sukhoi T-50

Wikiposts
Search
Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

first public flight of Sukhoi T-50

Thread Tools
 
Search this Thread
 
Old 18th Aug 2011, 12:48
  #1 (permalink)  
Thread Starter
 
Join Date: May 2011
Location: Malkin Tower
Posts: 847
Likes: 0
Received 0 Likes on 0 Posts
first public flight of Sukhoi T-50

yesterday apparently Russian stealth 1st public flight sukhoi pak fa t-50 at maks airshow |
jamesdevice is offline  
Old 18th Aug 2011, 12:52
  #2 (permalink)  

Evertonian
 
Join Date: May 2000
Location: #3117# Ppruner of the Year Nominee 2005
Posts: 12,516
Received 106 Likes on 60 Posts
So, if the Raptor's not for sale....
Buster Hyman is offline  
Old 18th Aug 2011, 13:27
  #3 (permalink)  
 
Join Date: Sep 2000
Location: ISLE OF MAN
Posts: 780
Likes: 0
Received 0 Likes on 0 Posts
Is that all it does?
STANDTO is offline  
Old 18th Aug 2011, 13:36
  #4 (permalink)  
 
Join Date: Jun 2009
Location: France
Age: 80
Posts: 6,379
Likes: 0
Received 1 Like on 1 Post
Obviously did not take a lot in entry fees for the show!
Wander00 is offline  
Old 18th Aug 2011, 16:42
  #5 (permalink)  
 
Join Date: Jan 2008
Location: Glasgow
Age: 61
Posts: 909
Likes: 0
Received 0 Likes on 0 Posts
It's a very dark night when I go to that link. Must be very quiet also as I can't hear it
hval is offline  
Old 18th Aug 2011, 17:12
  #6 (permalink)  
Thread Starter
 
Join Date: May 2011
Location: Malkin Tower
Posts: 847
Likes: 0
Received 0 Likes on 0 Posts
takes a long time for the video to load - must be a slow server
jamesdevice is offline  
Old 18th Aug 2011, 17:39
  #7 (permalink)  
 
Join Date: Nov 2006
Location: In the wing
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Me thinks he wasn't really trying! It also hasn't got vectored thrust nozzles yet.
ACSfirstfail is offline  
Old 18th Aug 2011, 17:41
  #8 (permalink)  
 
Join Date: Jul 2011
Location: Vevey
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Not much of a stealth fighter, you can see it.
Gocatcomplete is offline  
Old 18th Aug 2011, 18:14
  #9 (permalink)  
Thread Starter
 
Join Date: May 2011
Location: Malkin Tower
Posts: 847
Likes: 0
Received 0 Likes on 0 Posts
Pravda like it!
Sukhoi PAK FA T-50 much more powerful than USA's F-22 Raptor - English pravda.ru
I like the statement "The technical specifications of the missiles for the jet exceed the analogues of the US aircraft. In addition, the T-50 can fire the missiles hidden in internal departments at hypersonic speed. The US fifth-generation aircraft can not do this and has to decelerate for the purpose."

I hope they don't really mean that..
jamesdevice is offline  
Old 18th Aug 2011, 18:57
  #10 (permalink)  
 
Join Date: Aug 2007
Location: London, New York, Paris, Moscow.
Posts: 3,632
Likes: 0
Received 0 Likes on 0 Posts
BBC video

BBC News - Russian stealth plane shown off at Moscow airshow
glad rag is offline  
Old 18th Aug 2011, 19:13
  #11 (permalink)  
 
Join Date: Aug 2007
Location: England
Posts: 100
Received 0 Likes on 0 Posts
Leading edge slats? Shirley they should have adaptive shape technology by now?

And wouldn't the camo be better the other way round with a dark centre leading to feathered lighter edges?

The display lines no closer than ours is it? Long range air displays, why not just wait for U tobe and UKAIR?

(Nice to have in the hangar for an afternoon flit round though)!
stumpey is offline  
Old 19th Aug 2011, 17:49
  #12 (permalink)  
 
Join Date: Jan 2008
Location: In the clouds
Posts: 125
Likes: 0
Received 0 Likes on 0 Posts
As ACS said didn't look like he was trying very hard. Early days yet I suppose.
Doesn't seem to puff much vapour?? Was the air just really dry or is it the design?? Or as above , not pulling much G

BW
Bubblewindow is offline  
Old 19th Aug 2011, 18:36
  #13 (permalink)  
 
Join Date: Mar 2005
Location: Doncaster
Posts: 87
Likes: 0
Received 0 Likes on 0 Posts
Looking at the video, the pilot was not trying much on the tight turns and G loading but what I saw was:
• Aircraft deployed slats through most of the turns
• There appears to be kugger flaps deployed on the leading wing edge above the engine intakes and these appear to be at different angles through the video
• Engine reheat appears to be contained within the jet pipe with no sonic shock waves aft of the aircraft, but I could be mistaken due to the blight sunlight
• Interesting that the engines did not have vectored thrust, plus the engine area as seen from above was not painted
• Agree the paint job is a standard distraction scheme but the wrong way round
• Hypersonic they are having a laugh... Having said that I suspect the aircraft could maintain super cruise without reheat, if not they are stuffed
• Worry.... Will be who they sell it to and the avionics/weapons fit
zero1 is offline  
Old 19th Aug 2011, 23:22
  #14 (permalink)  
 
Join Date: Aug 2007
Location: Oz
Posts: 644
Likes: 0
Received 0 Likes on 0 Posts
Waiting for Low Observable to post about how crap the F-35 is compared to the T-50.

Shirley they should have adaptive shape technology by now?
You'd think so, and don't call me Shirley!
FoxtrotAlpha18 is offline  
Old 20th Aug 2011, 13:33
  #15 (permalink)  
 
Join Date: Jan 2004
Location: Far West Wessex
Posts: 2,580
Received 4 Likes on 2 Posts
Trollfail.
LowObservable is offline  
Old 21st Aug 2011, 08:56
  #16 (permalink)  
 
Join Date: Jan 2009
Location: Qatar
Age: 68
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
I was myself at Zukovski three days ago - and it was so beautiful !

Very long and flat bird, unusual profile - yes, I agree, not pulling a lot of high g - but quite decently anyway

At least it will fly better than a F117 (only the poorest pilots were assigned to this one)

Some nice displays there ( couples of Mig 29, SU-27 teams, combat helicopters in pairs...)

The most agressive and simultaneously soft was the FAF-displayed Rafale - what a bird, one deck above all the others...
Reinhardt is offline  
Old 21st Aug 2011, 09:57
  #17 (permalink)  
 
Join Date: May 2010
Location: PLanet Earth
Posts: 1,335
Received 106 Likes on 52 Posts
Originally Posted by zero1
Looking at the video, the pilot was not trying much on the tight turns and G loading but what I saw was:
• Aircraft deployed slats through most of the turns
• There appears to be kugger flaps deployed on the leading wing edge above the engine intakes and these appear to be at different angles through the video
That seems to be part of the aerodynamic concept.
The Flaps above the intakes (a bit like blended canards) are also deflected significantly Nose Down at the low speeds shown in the Display.

What is remarkable and fits to this obervation is the fact that the Elevator / all moving Tailplane is very neutral or even Nose down through most of the turns pointing to a rather relaxed/negative longitudinal stability. Altogether a design leaning on a closed coupled canard tri-plane config which is from a lift/drag perspective close to optimum.

Compare this for example with the MiG35. That one uses a lot of Nose Up tail plane in the turns. Will shed loads of energy in turns compared to a setup like the T-50. Light years behind T-50.

With the massive wing area, 'blended canard' and wing sweep I would not aerodynamically undersestimate the T-50. Will likely be an excellent High speed/high altitude turn performer. Not so much Air Show aerobatics focussed like the Su-27ff, more real world combat speeds.
With the small frontal area and high wing sweep and big engines that thing can't possibly avoid being able of significant supercruise. Combined with probably excellent maneuvering performance in that regime.
Re: Thrust Vectoring: Looking at the general design/layout and the intended mode of fighting (high speed) I would say: Who cares?
Could easily make it without them (except maybe for the small Vertical stabilizers, might require TVC to recover yaw at high AoA).

So much for visually dissecting the aerodynmic design approach.

That said, the Low Observables performance of that bird is not so clear to me. Personally I have the strong feeling it will not be on the same level as F-22 and F-35. Frontal RCS may be quite OK, all aspect RCs I would personally doubt.
henra is offline  
Old 21st Aug 2011, 20:06
  #18 (permalink)  
 
Join Date: Sep 2007
Location: The Jungle
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
You would be surprised at how poor performing the PAK-FA actually is in terms of manoeuvrability and RCS.
Foghorn Leghorn is offline  
Old 21st Aug 2011, 21:58
  #19 (permalink)  
 
Join Date: May 2010
Location: PLanet Earth
Posts: 1,335
Received 106 Likes on 52 Posts
Originally Posted by Foghorn Leghorn
You would be surprised at how poor performing the PAK-FA actually is in terms of manoeuvrability and RCS.
Re Maneuverability:
At the moment, being in prototype status with surely very restricted envelope of the FCS that is absolutely conceivable.
However, looking at the design principles and features ('blended' Canard Tri- plane layout, seemingly high instability, huge wing area, strong emphasis on fuselage lift between engines) I'm quite convinced that in final config it will be very maneuverable, likely especially at higher speeds and altitudes.

Re: RCS:
We simply don't know. (Or do you have obtained classified information by SUKHOI ?).
That said, the external apperance does not scream Stealth as much as the F-22 and F-35 do, for whatever that is worth.
henra is offline  
Old 22nd Aug 2011, 13:27
  #20 (permalink)  

Do a Hover - it avoids G
 
Join Date: Oct 1999
Location: Chichester West Sussex UK
Age: 91
Posts: 2,206
Likes: 0
Received 0 Likes on 0 Posts
In my view anybody who understands the aircraft development business would consider a technical malfunction (of any sort) where the aircraft (any aircraft) is not lost as pure development gold.

Such an event makes it less likely that the same thing will go wrong in service - which is what development programmes are all about.

Mind you PR types or reporters do not see life the same way as engineers.
John Farley is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.