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J-9 VI-II Interceptor

5,979 yoshicraze  2.4 years ago
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Auto Credit Based on yoshicraze's J-9 VI-II Interceptor

Chengdu J-9 was a designation assigned to a Chinese interceptor aircraft that never progressed beyond initial studies. The J-9 project was abandoned in favour of the Shenyang J-8, which was a safer technological bet for the limited Chinese aviation industry of the 1960s and 1970s. In late 1964 two indigenous fighter programs were initiated to follow up the MiG-21. The twin-engine project using the MiG-21's R-11F-300 powerplants was the J-8. The J-9 project ran in parallel with the J-8 project, but used a completely new single-engine airframe. It adopted the canard layout. The designed target maximum speed was originally Mach 2.4 at above 20,000 metres (66,000 ft) of altitude. In order to achieve this target, the J-9 was fitted with an 8,500kgf (19,000 lbf)-thrust turbojet engine and the 601 Institute initially used a tailless delta design. Development at this point shifted to the newly built 611 Institute and the Chengdu Aircraft Factory.At the beginning of the 1970s, the 611 Institute proposed a new design using a canard ahead of the delta wing (similar to the Swedish Viggen), but because it required new materials and know-how (plus having engine performance problems), it was not until 1975 that the design could be completed.

The new J-9 design had air intakes on the fuselage sides featuring variable inlet geometry to alter the compression mixture. It used a Chinese-designed Shenyang WS-6 turbofan engine with 12,400 kgf (27,000 lbf) afterburning thrust, and featured a Type 205 radar (with a search range of about 70 km) and four PL-4 radar-guided air-to-air missiles. The J-9 plan was discontinued in 1980, but the J-9 development enabled Chinese engineers to gain experience with the canard layout type, experience that would prove useful in the J-10 project.

The J-9 was cancelled primarily due to the inability to produce the specified WS-6 turbofan engine. The program was also severely disrupted by the Cultural Revolution. The constantly shifting and unrealistic speed and altitude targets placed by the People's Liberation Army Airforce (PLAAF) frustrated the efforts of the J-9 design team. For example, PLAAF demanded the top speed increased to Mach 2.8 with a maximum altitude of 28,000 metres (92,000 ft). Efforts by the designers to lobby for less ambitious speed and altitude requirements as well as to place greater emphasis on range and agility met heavy resistance. The J-8 project was deemed more conventional and lower risk from the start and received funding priority.


The design for J-9 had various proposals, from the conventional wing setup J-9IV, single engine delta wing no canard J-9V, single engine delta wing with canard J-9VI (I,II,III), and twin engine delta wing with canard J-9VI-II (later design).
The Plane shown here is the later design of the J-9VI-II, the dual engine configuration was implemented to achieve “Double Two Six” ( max altitude 26,000 meters, max speed mach 2.6) . I tried my best to replicate the paint scheme as seen in the picture below, I also added some extra touch to make it have a more 80s look.

USEFUL Controls

Act 1 for Afterburner
Act 2 to drop fuel tanks
Act 3 to fire all missiles
Vtol to control Canards
Trim for Trim

Also I want to thank closeairsupport for making the missiles!

Spotlights

General Characteristics

  • Predecessor J-9 VI-II Interceptor
  • Created On Windows
  • Wingspan 59.9ft (18.3m)
  • Length 85.8ft (26.1m)
  • Height 27.1ft (8.3m)
  • Empty Weight 22,997lbs (10,431kg)
  • Loaded Weight 51,145lbs (23,199kg)

Performance

  • Power/Weight Ratio 2.9
  • Wing Loading 37.2lbs/ft2 (181.4kg/m2)
  • Wing Area 1,376.5ft2 (127.9m2)
  • Drag Points 21937

Parts

  • Number of Parts 552
  • Control Surfaces 8
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  • Profile image
    5,979 yoshicraze

    @LockheedLover u make nor sense

    +2 1.2 years ago
  • Profile image

    @yoshicraze that makes no sense

    1.2 years ago
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    5,979 yoshicraze

    @LockheedLover pteranodon= knockoff DNA cell

    1.2 years ago
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    @yoshicraze pterodactyl=knockoff pteranodon

    1.2 years ago
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    5,979 yoshicraze

    @LockheedLover Horton Ho229= Copy pterodactyl

    1.2 years ago
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    @yoshicraze Convair F-106 Delta Dart=Knockoff Delta 1

    1.2 years ago
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    5,979 yoshicraze

    @LockheedLover SAAB Gripen= Knock-off F-106

    1.2 years ago
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    Knock-off SAAB Gripen

    1.2 years ago
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    5,979 yoshicraze

    @FranzPeterSiegfried Thanks! It really should've been haha

    1.3 years ago
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    5,979 yoshicraze

    @Thelegitpilot13 Thank you for your kinds words! Yea I guess the controls were a bit odd, but by now I'm just too lazy to fix it.

    1.3 years ago
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    This thing looks like some crazy MiG-31/Viggen mix.
    And I love it. Great work recreating it! Idc that it’s over a year old, this thing’s detail and overall coolness gets a spot from me.
    Also, if I may offer a bit of criticism, it seems the trim doesn’t really work, and having the canards set to VTOL is an odd choice. I would set it up to pitch, rather than VTOL, but hey, I didn’t design it.

    1.3 years ago
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    5,979 yoshicraze

    @N1KO @Notaleopard Thanks!

    1.5 years ago
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    5,979 yoshicraze

    @Redvis thanks!

    2.0 years ago
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    1,932 Redvis

    Wow nicely done!!!

    2.0 years ago
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    13.1k Ownedpilot

    不谢@yoshicraze

    2.4 years ago
  • Profile image
    5,979 yoshicraze

    @Ownedpilot thanks!

    2.4 years ago
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    No problem man!
    @yoshicraze

    2.4 years ago
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    10.4k shipster

    @yoshicraze yep, no problem!

    2.4 years ago
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    5,979 yoshicraze

    @SteadfastContracting thanks man!

    2.4 years ago
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    5,979 yoshicraze

    @SledDriver @shipster @SteadfastContracting thank you for the upvote!

    2.4 years ago
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    Really nice replica dude, good work!

    +1 2.4 years ago
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    10.4k shipster

    @yoshicraze No problem

    2.4 years ago
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    5,979 yoshicraze

    @Mick1234567890 lol

    2.4 years ago
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    5,979 yoshicraze

    @Mr6371 多谢(^_^)

    2.4 years ago
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    Np comrade! @yoshicraze

    2.4 years ago
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