Broadsword quiz... level "challenging". ANSWER POSTED - Broadsword by Ajai Shukla - Strategy. Economics. Defence.
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Tuesday 1 March 2011

Broadsword quiz... level "challenging". ANSWER POSTED

ANSWER TO THE QUIZ IS POSTED IN THE COMMENTS. POSTED HERE IS A PHOTO OF THE LSP-2 --- WHICH WAS BUILT WITH A REINFORCED FUSELAGE --- ON THE STRUCTURAL TEST BED, SOON AFTER IT PROVED ITS ABILITY TO ABSORB 150% OF THE MAXIMUM LOAD THAT WOULD BE REQUIRED IN OPERATIONAL FLIGHT.









Well, here it is, boys and girls! No distractions here in terms of people and tables of equipment. But... what is it that you see? As always, the best answer wins.


HINT: YOU ARE ALL MISSING THE WOOD FOR THE TREES! DON'T LOOK AT THE GAUGES, DIALS AND DHAKKANS... THERE IS A BIGGER STORY IN THE PHOTO!!

FOR HEAVEN'S SAKE! THE CORRECT ANSWER IS NOT "SPIN RECOVERY PARACHUTE". NOR IS IT "REPAIR WORK AFTER THE 2007 CRASH". THINK AGAIN....



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97 comments:

  1. Anonymous1 March 2011 at 19:20

    Ajaiji, dhruv isnt reached siachin.....

    ReplyDelete
  2. Anonymous1 March 2011 at 20:30

    Looks like the end points for data cables. Probably, to collect maintenance data about engines and other tuning of engine controls.

    ReplyDelete
  3. Anonymous1 March 2011 at 20:55

    Inlets for hydraulic fluids....

    ReplyDelete
  4. Ananthanarayanan S1 March 2011 at 21:25

    Thats an HJT-36 Sitara Intermediate Jet Trainer

    ReplyDelete
  5. Anonymous1 March 2011 at 21:30

    Fuel ports? I see three, so three tanks are fuelled from here.

    ReplyDelete
  6. Anonymous1 March 2011 at 21:57

    it looks like some kind of cap to seal shut fluid container(s), maybe fuel or fluid for hydraulic components. And that 'thing' in the dark right side ... maybe somthing to release fluid loss to simulate malfunctioning

    ReplyDelete
  7. Rahul Devnath1 March 2011 at 22:00

    Ports for downloading the aircraft parameters information to a DTC installed in the Data Transfer Receptacle (DTR)?

    ReplyDelete
  8. Anonymous1 March 2011 at 22:01

    The dials are hydraulic accumulator pressure dial and the emergency hydraulic accumulator pressure dial which is used for emergency situations when the main hydraulic system fails . The caps below seems to be opening for topping the hydraulic fluids and checj=king the level.

    rad

    ReplyDelete
  9. Thaariq1 March 2011 at 22:04

    I think this is the Fuel panel

    ReplyDelete
  10. Thaariq1 March 2011 at 22:05

    I think this is the Fuel Panel

    ReplyDelete
  11. Anonymous1 March 2011 at 22:10

    Its the fuel tank

    ReplyDelete
  12. Jateen Bhatt1 March 2011 at 22:31

    French Larzac replaced with a Nano Saturn?

    ReplyDelete
  13. Broadsword1 March 2011 at 23:00

    HINT: YOU ARE ALL MISSING THE WOOD FOR THE TREES! DON'T LOOK AT THE GAUGES, DIALS AND DHAKKANS... THERE IS A BIGGER STORY IN THE PHOTO!!

    ReplyDelete
  14. Anonymous1 March 2011 at 23:27

    IJT Sitara PT1 trainer with the new Saturn AL-55l engine

    ReplyDelete
  15. Anonymous1 March 2011 at 23:32

    Is it the Weapons Configuration Panel for converting trainer to light strike?

    ReplyDelete
  16. Raviprakash1 March 2011 at 23:35

    I give up this quiz....u say its not about open DHAKKANS.....then what is so there in that pic to guess...only gurus with high experience can guess....But sir u r really doing wonderful job...

    ReplyDelete
  17. Anonymous1 March 2011 at 23:57

    Safety recovery parachute ?

    ReplyDelete
  18. rohan mohan2 March 2011 at 00:15

    There are no screws on the cover plate next to the open panel.

    ReplyDelete
  19. Yogesh Vaidya2 March 2011 at 00:20

    Crashd Sitara?

    ReplyDelete
  20. Anonymous2 March 2011 at 00:21

    Emergency Parachute for retrieving aircraft in case of malfunction.

    ReplyDelete
  21. Yogesh Vaidya2 March 2011 at 00:22

    Sitara which was belly landed and suffered damaged in 2009

    ReplyDelete
  22. Sonu2 March 2011 at 00:26

    it seems something like air intake, may be as auxilary intake!!!!

    or some arrangement to stop the aircraft spining continuosly. if my memory serves me correctly, you spotted the problem of sitara that during wind tonnel test, the aircraft was uncontrolable after spining command.

    but yah, its too challanging...

    ReplyDelete
  23. Anonymous2 March 2011 at 00:32

    It could be data cable sockets for getting data about the trainer performance. If it is why they have it something there they need to open up every time to see it.

    ReplyDelete
  24. Rahul2 March 2011 at 00:36

    IJT in the pic is special for following reasons.

    (a) IJT in pic is PT-2.

    (b)It (S3466) is the same aircraft which had slipped off the runway during AI 09.

    (c)It(S3466) is the same air craft which got broken into two during structural load test.

    ReplyDelete
  25. Anonymous2 March 2011 at 00:38

    Aircraft registration? Does it mean FOC has been accorded?

    ReplyDelete
  26. Rahul2 March 2011 at 00:40

    Ajai Sir, a humble request. If possible please fix a time for airing quiz, this way everybody will get equal opportunity.

    Thanks.

    ReplyDelete
  27. Yogesh Vaidya2 March 2011 at 00:41

    This is the same plane which was landed on its belly in last aero india 2009 now back in action..

    ReplyDelete
  28. Rahul2 March 2011 at 02:19

    CONTD.

    It is the same jet which will go for spin recovery trials scheduled within weeks.

    ReplyDelete
  29. Unknown2 March 2011 at 02:20

    I'm guessing this IJT trainer has additional parachutes installed to allow it to recover from an otherwise unrecoverable spin.

    Spin and high AoA testing will need to conclude before the aircraft gets its IOC this year.

    ReplyDelete
  30. Unknown2 March 2011 at 02:31

    I believe in the IJT the system is called Anti-Spin Parachute System (ASPS). An unrecoverable spin typically occurs at a high angle of attack when the aircraft stalls and begins to plummet while rotating about the vertical axis. The parachute deploys towards the rear and allows the aircraft to move its centre of gravity forward (it pitches the nose of the aircraft down).

    ReplyDelete
  31. Anonymous2 March 2011 at 02:43

    What we are seeing in the picture is the relatively simple construction techniques employed by HAL in building the IJT-36 -- the panels are held together with easily available kitchen cupboard screws!

    It is this simplicity which allows HAL pilots and engineers to repeatedly crash and break this plane and still allows the plane to keep coming back and fly. Jai Ho!

    I.A.Munique

    ReplyDelete
  32. sahanshu2 March 2011 at 03:00

    this HAL IJT 36 crashed during the preparation for aero india 09 & it looks like that HAL has rebuild it...good job HAL...

    ReplyDelete
  33. Soham Das2 March 2011 at 03:06

    1. IJT S3466 is the first plane to have shed the traditional blue color scheme for a more vibrant Orange one.

    2. I am positive it has gone some additional feature upgrades, and this is a first test run for that. I can hazard a guess that the panel just infront of the air intake has been opened so that more air flows into it. Which implies, its very much possible the engines are upgraded/replaced. Yes, wiki confirms that it has not been flown since Aero 2007 mishap. Saturn came in in 2008. Hence, the first trial run with AL-55L engine.

    ReplyDelete
  34. Bhanja2 March 2011 at 03:35

    Strakes have been added to the nose and tail of S3466, similar to the Sitara LSPs, for added spin/high AoA stability. S3466 will shortly return to flight testing and possiby weaponisation.

    ReplyDelete
  35. subin2 March 2011 at 03:44

    gettinf ready for they navy. looks like arrestor..

    ReplyDelete
  36. Anonymous2 March 2011 at 04:22

    Question is what is S3466.

    ReplyDelete
  37. Anonymous2 March 2011 at 04:24

    I guess I will go with Rahul..

    2 March 2011 14:06

    Ofcourse no points :) but the understanding yes.

    ReplyDelete
  38. Anonymous2 March 2011 at 04:47

    Just a wild guess, It has something to do with anti-spin parachute system (ASPS)

    Anil, mumbai

    ReplyDelete
  39. Rajiv Gnadhi2 March 2011 at 04:49

    S3466 is the same aircraft that flew in AI 2011.
    guess 1. The parachute recovery system is on board.

    guess 2. The aircraft is being readied for the spin recovery tests.

    guess 3: The aircraft is modified to have extra air brakes.

    ReplyDelete
  40. Anonymous2 March 2011 at 04:49

    missing screws!

    ReplyDelete
  41. Venkat2 March 2011 at 04:50

    This aircraft PT1 sitara has got strakes and spin recovery parachute.This is being readied for carrying out spin recovery tests in due course of time as part of obtaining initial operational clearance(IOC)!!!!

    ReplyDelete
  42. Broadsword2 March 2011 at 06:07

    FOR HEAVEN'S SAKE! THE CORRECT ANSWER IS NOT "SPIN RECOVERY PARACHUTE". NOR IS IT "REPAIR WORK AFTER THE 2007 CRASH". THINK AGAIN....

    ReplyDelete
  43. Anonymous2 March 2011 at 06:43

    It is pressure gadge. one is Break and other look emergency pressure gadge. May be Hydrolic pressure or air pressure input? May be used for zero eject seat?

    ReplyDelete
  44. Anonymous2 March 2011 at 07:04

    Poor build quality. The rivetting does'nt even lin up. Probably because its been patched up after its aborted take-off at AI07. The small intake left of the open panel suggests an air intake to cool some kind og electronics/avionics. Its too small for engine cooling.

    ReplyDelete
  45. Unknown2 March 2011 at 07:10

    Looks like they have added another hydraulic accumulator for emergency requirement. The ports could be hydraulic charging point/connector for ground hydraulic trolly.


    Shail

    ReplyDelete
  46. Unknown2 March 2011 at 07:11

    Looks like HAL has added another emergency hydarulic accumulator for brakes. The ports could be ground hydarulic charging points.

    ReplyDelete
  47. Rahul2 March 2011 at 07:19

    If the answer is not related to history(about which i already posted) ) of IJT serial number S3466, then i'am seeing mentioned as following(all):-

    1. ATF inlet/outlet.
    2. Oxygen cylinder refill socket.
    3. Half funnel shaped vortex generator.

    ReplyDelete
  48. Unknown2 March 2011 at 07:23

    It could be a completely new prototype aircarft. May be you want us to notice its serial no.

    ReplyDelete
  49. Anonymous2 March 2011 at 07:26

    This seems like there is no hatch to the fuel ports.

    ReplyDelete
  50. Unknown2 March 2011 at 07:47

    This aircraft has independent redundant hydraulic systems.

    ReplyDelete
  51. Int642 March 2011 at 07:48

    Is it the small fins added to Sitara? I donno what is the exact term for that

    ReplyDelete
  52. Anonymous2 March 2011 at 08:02

    AL-55I

    ReplyDelete
  53. Raviprakash2 March 2011 at 08:11

    Is it that the body of IJT is made of ALUMINIUM and not composites...

    ReplyDelete
  54. barath2 March 2011 at 08:37

    is this going to be part of Suryakiran team

    ReplyDelete
  55. Sabertooth2 March 2011 at 08:39

    My observations:

    1. There is a screwed-on access panel instead of a easy access panel.

    2. Also the panel frame is 'ground off' to allow space for the covers.

    Poor design for such an elegant aircraft.

    ReplyDelete
  56. Fantan2 March 2011 at 09:07

    Its probably Al 551 engine's turbine pressure measurement unit or something...Its really a hard guess..

    ReplyDelete
  57. Cyprus2 March 2011 at 09:17

    Though our answers might not be upto your expectations Mr.Shukla(I dont think many aeronautical Engineers commenting out here), But its a good learning oportunity for most of us and I thank you for that.

    ReplyDelete
  58. Anonymous2 March 2011 at 09:25

    The aircraft is the same as the one display here, albeit with a different colour scheme:

    http://goo.gl/b4v8F

    ReplyDelete
  59. Anonymous2 March 2011 at 10:30

    Well this was the first IJT prototype. and now it seems that it is upto the SP levels (strakes et al).

    ReplyDelete
  60. Gowrishankar V2 March 2011 at 10:36

    Is this a mechanism to control the output of the engine so that the trainer could be used to fly/train at different speeds?

    ReplyDelete
  61. Mr. Ra2 March 2011 at 10:49

    At the bottom of this panel, the body contour is abrupt and not smooth. Hence it is not so much aerodynamic.

    ReplyDelete
  62. Anonymous2 March 2011 at 11:28

    Prototype for mid-air refueling. Either it is for training or testing.

    ReplyDelete
  63. lohit kumar2 March 2011 at 11:33

    the body panel or cover is missing-dhakan in hindi.

    ReplyDelete
  64. Anonymous2 March 2011 at 13:05

    Is the IJT using the sunlight to overcome the cold soak after a flight?

    Indranil Roy

    P.S.
    to poster at 2 March 2011 20:34: Please know the difference between rivets and screws before commenting on build quality ... There are no rivets ... Screws are used on the panels like these which require frequent access.

    ReplyDelete
  65. Spartacus2 March 2011 at 13:08

    S3466 is the first prototype IJT and changed from 'blue' paint scheme to the current Orange paint scheme.

    ReplyDelete
  66. Anonymous2 March 2011 at 14:55

    I see a wing fence which is not present on any of the other IJTs.

    Given the position of the wing fence (just before the aeliron and also covering the leading edge) I can say that they are (most probably) stall fences. I won't lower the stall speed (by much), but it will help in not letting the whole wing to stall at once. Also control would be retained through the aelirons once the plane has stalled.

    This will be very handy when this IJT goes through spin tests.

    Indranil Roy

    ReplyDelete
  67. Anonymous2 March 2011 at 15:51

    This is simple - the aircraft is being considered for a naval carrier capable version.

    Cujo - strikes again !

    ReplyDelete
  68. DT2 March 2011 at 18:10

    hydrolic for landing gear?
    and it pressure gadge?

    ReplyDelete
  69. ani78i2 March 2011 at 18:20

    This A C should be replase kiran MK 2 in S k airobatic team

    ReplyDelete
  70. ani78i2 March 2011 at 18:23

    Post the capability of tejas mk1.please

    ReplyDelete
  71. Anonymous2 March 2011 at 19:13

    It resembles the hawk AJT?!

    ReplyDelete
  72. Anonymous2 March 2011 at 19:41

    the landing gear seems to be somewhat changed...

    apart from that the riveting or the screw holes are not aligned and half the screws/rivets are missing..

    shoddy work it seems..

    ReplyDelete
  73. Anonymous2 March 2011 at 22:23

    This is a naval version as latch is visible for ship landing.

    ReplyDelete
  74. Hrishikesh2 March 2011 at 22:44

    Countermeasures dispensing unit!!

    ReplyDelete
  75. Anonymous3 March 2011 at 00:10

    first of all if one compares the same aircraft here -

    http://www.acig.org/artman/uploads/sitara-pt1.jpg

    the STRAKES both at the front just ahead of the cockpit and on the tail fin is what stikes me.

    guru.

    ReplyDelete
  76. WilburWright3 March 2011 at 02:34

    Is this the production version of the IJT with the Saturn engine (instead of the Snecma one used on the prototype)?

    ReplyDelete
  77. Anonymous3 March 2011 at 02:51

    thats the chain brake to stop the aircraft, like the one we use in train? hehe. i really dont know wats tat, just waiting eagerly to answer :)

    ReplyDelete
  78. Aditya Yedla3 March 2011 at 07:00

    So Far there are only 2 IJTs and this ones just a one o them which keeps on getting repainted and shown again and again...SO HAL has been able to manufacture only 2 prototypes!!!!!!!!!

    ReplyDelete
  79. Anonymous3 March 2011 at 09:50

    Datalink ??

    ReplyDelete
  80. Anonymous3 March 2011 at 11:45

    may be stupid but is it some way to train mid air refueling

    ReplyDelete
  81. Ravi3 March 2011 at 13:58

    Couple of guesses:
    1. Is there something different in the building of this airframe from traditional methods?

    2. Is it that more LRUs and diagnostic tools are built in for ease of maintenance?

    3. Different type of paint/coating on the aircraft?

    ReplyDelete
  82. Anonymous3 March 2011 at 17:46

    Then wats the answer:)

    ReplyDelete
  83. Anonymous3 March 2011 at 20:39

    I believe it has an arrester cable for practising deck landings.

    ReplyDelete
  84. Anonymous3 March 2011 at 22:04

    on-board oxygen generating system (OBOGS)'s drain valve assembly ? maybe? :)

    ReplyDelete
  85. Anonymous3 March 2011 at 22:09

    On-Board Oxygen Generating System (OBOGS)'s drain valve assembly? :)

    ReplyDelete
  86. Anonymous4 March 2011 at 00:51

    Sir,
    Thats water filtering system in case pilot feels thirsty.if u luk closely there are two dials and 2 nozzles.One for cold water and the other one for hot water.Also the temp variation is achieved by AI.If u luk at screws they are not what they really luk.They are infrared sensors so that no one steals water from it.
    Am i rite??I think so.

    ReplyDelete
  87. Anonymous4 March 2011 at 01:48

    It looks like Amphenol Fiber Optic TFOCA Connectors with Dust Cap and chain. The 4 FO ports in the picture could be used for data link or to connect BITE (Built In Test Equipment)

    NRP

    ReplyDelete
  88. Anonymous4 March 2011 at 05:12

    is this related to fuel tanks?

    ReplyDelete
  89. Sid4 March 2011 at 06:35

    Plateform for weapon trials?

    ReplyDelete
  90. Broadsword4 March 2011 at 08:29

    THIS WAS CLEARLY MORE CHALLENGING THAN ANY PREVIOUS QUIZ.

    THE CORRECT ANSWER: THE SCREWED ON PLATE THAT YOU SEE... ON WHICH THE NUMBERS "46" ARE PAINTED... IS THE REINFORCEMENT THAT HAS BEEN PROVIDED TO THE IJT SITARA'S FUSELAGE AFTER IT CRACKED DOWN THE MIDDLE DURING THE "SYMMETRICAL MANOEUVRE" STRUCTURAL TEST AT HAL.

    AFTER THE REINFORCEMENT, THE SITARA PASSED THE SYMMETRICAL MANOEUVRE STRUCTURAL TEST IN JANUARY 2011. THE IJT IS NOW CLEARED FOR 7G FLIGHT MANOEUVRES.

    I HAVE ALSO POSTED A PHOTO OF THE LSP-2 --- WHICH WAS BUILT WITH A REINFORCED FUSELAGE --- ON THE STRUCTURAL TEST BED, SOON AFTER IT PROVED ITS ABILITY TO ABSORB 150% OF THE MAXIMUM LOAD THAT WOULD BE REQUIRED IN OPERATIONAL FLIGHT.

    NO GOLD STARS FOR ANYONE THIS TIME... SORRY!

    ReplyDelete
  91. Rahul4 March 2011 at 09:15

    Ajai sir, if possible, please share with us some details on PV-1 EW upgrade.

    Thanks!

    ReplyDelete
  92. chandrasekhar4 March 2011 at 23:28

    interesting answer, however, it was pretty much impossible to figure it out looking at the photographs given as clues.

    ReplyDelete
  93. karachiwala5 March 2011 at 00:48

    patchwork takes care of serious design flaw ?

    ReplyDelete
  94. Anonymous5 March 2011 at 02:41

    how can a simple metal plate provide strength to a compromised design ? Will the lsp-2 also have this plate ? Think of brand new levis jeans with ugly patchwork.

    ReplyDelete
  95. Anonymous5 March 2011 at 06:30

    Shouldn't the structural integrity test be done prior to flying?!!

    ReplyDelete
  96. Anonymous7 March 2011 at 02:21

    (A)"karachiwala said...
    patchwork takes care of serious design flaw ?

    5 March 2011 14:18"

    (B)"Anonymous said...
    how can a simple metal plate provide strength to a compromised design ? Will the lsp-2 also have this plate ? Think of brand new levis jeans with ugly patchwork.

    5 March 2011 16:11"

    Elementary my dear Watsons, you see when this fuselage might have been subjected to the severe stresses, it might have been noticed that cracks/tears started from this particular location. So what do you do? Well, strenghthen that particular point from where the weakeness begins and you take care of the problem very effectively and very cheaply. Jolly good show eh? I'll have my tea now, thank you!

    I.A.Munique

    ReplyDelete
  97. Anonymous7 March 2011 at 22:23

    Dont waste your time trying to explain sane things to karchiwalas !!! He might have taken timeout from his bakery inn!!!

    ReplyDelete

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