Tuesday, October 20, 2015

VSKYLABS Shenyang J-15 flight performance model

VSKYLABS Shenyang J-15 flight performance model

Please read the X-Plane flying tip, down this post.

This project is still under development, and is being released now because the flight-model tuning phase is almost finished.

A 'Flight Performance model' is a project which focus on one or more aircraft flight performance aspects. My last flight performance model was the VSKYLABS IAI Kfir TC2 Turn performance flight model, which is sort of a maneuverability demonstrator.

The next aircraft to come is the VSKYLABS Shenyang J-15 'Flying Shark', which is based on the Soviet-designed Sukhoi Su-33. In the past, I've uploaded a previous versions of the SU-27/33 for X-Plane. This model is a rebuild, with a completely new flight model design, as I've decided to stretch out X-Plane's capabilities and try to design the most authentic super-maneuverability flying model.

Note: This is an upgraded J-15 model since it utilize a 3D thrust vectoring system.

A brief explanation about Super-Maneuverability:
'Corner Velocity', which also called 'corner speed' is the minimum speed at which maximum G can be obtained (at full engine power). Fly faster than it, and you can instantaneously pull to a maximum and even over-G turn (and lose energy in the process). Fly slower, and pulling all the way, will get your turn rate to drop rapidly. It is therefore desirable in combat or aerobatic maneuvering to maintain corner velocity.

In a super maneuverable aircraft, a high degree of maneuverability below corner velocity can be obtained, even below stall speed. Such an aircraft is capable of maneuvers that are impossible with a purely aerodynamic design. The ability of an aircraft to perform high alpha maneuvers that are impossible for most aircraft is evidence of the aircraft's super maneuverability.

Here is a new video I've made during the extensive flight-testing and tuning process of the model:

Flying tips for X-Plane
(and real life, if you find yourself in a super maneuverability agile fighter) :

First of all, The aircraft maximum weight is set up to a lower value in Plane Maker. The reason for that is that I wanted the aircraft to be set up on a light-weight configuration, "ready for airshow". If a maximum weight value is set up in Plane-Maker, X-Plane will put the aircraft on the runway with a heavy weight configuration (not the maximum weight but still heavy) and this is a bit heavy to "Rock n'Roll".

Second, I'm writing a post, explaining and demonstrating how to handle these kind of next-generation, Super-Maneuverability aircraft. It will be ready soon, with lots of explanation and video demonstrations.

Until then, I can recommend you to use the HUD for flying. In X-Plane's default HUD. there's a horizontal, dotted-line represents the stall-area. As you pull the stick, raising your Angle of Attack, you'll see this line coming from the upper area of the HUD. Once you proceed pulling, the line will cross the velocity vector cue, and now you are in the "Super-Maneuverability" zone. 

In order to stay alive in that zone, it is recommended to:
  • Stay with full afterburner power.
  • Try to separate vertical and horizontal inputs to the stick.
  • Getting out of this zone requires gaining speed, or extensive but controlled push of the stick, to reduce the Angle of Attack.

Have fun!


No comments:

Post a Comment


X-Plane Prototype VSKYLABS Experimental Delta wing Microlight Ultralight Home built VSKYLABS 'Scratch Built RC Legends' project Canards Light aircraft Navy Stealth Supersonic Afterburner Aircraft carrier Ducted fan F-19 Stealth Fighter HUD Turbojet AGM-65 C-5 CIA F-18 Hornet F404 Laser guided Pulse jet Reconnaissance SR-71 3D cokpit AIM-120 AMRAAM AOA Air racing Aircraft performance Autopilot Bush plane Buzz bomb C-47 Canard Counter rotating Dog fight Electric F-117A Ferry fuel tank Fixed landing gears G load General Electric J-85. Turbojet Giant scale Glider High Alpha Holy smoke Interception Italeri Jet Leading edge flaps Lockheed constellation Mach 2 Maneuver Model kit Nitro Plastic models RC RC gliders RC models Radio controlled Ram jet Reciprocating engine Research Rocket SU-33. F-22 Scratch built Simulation Skunk works Testors Trike Turbine V-1 Valveless pulse jet XB-70 YF-12A aircraft AMP-100 Aerodynamic heating Aeropro Aerotrek Alaska Alternair Andre Tucart Angle of attack Autogyro Barnaby Wainfan Bensen B-8 Bird of prey Boeing Bristol Siddeley Viper 9 Buggy Cockpit Comet Concorde Corner speed DH.88 Dutch roll Eurofox External fuel tank F-16XL FMS FMX-4 Facetmobile Fighter Flex wing Flight envelope Float plane Fly by wire GPS Gee Bee Gee Bee R3 General Aviation Goblin Golden age Green Griffon 1500 Griffon 2 Griffon II Grumman Gyrocopter HP 115 Handley Page. Research Hang glider High altitude High performance Highly detailed IAI Interceptor Israeli air force J-79 Jetpack Kfir Kfir TC2 Knife edge LSA Landing gears Lifting body Lightning Lockheed Low aspect ratio MFD Mach 3 McDonnell Douglass McDonnell XF-85 Mirage 5 Mirage III Missile Model AP-57 Motorized NDB Nasa X-25A Navigation Nord Griffon P-38 Parasite Pre rotate Private transportation PulseJet propulsion for Ultralight aircraft RC airstrip Racing Republic Rotax 503 Rotax 912 Rotor wing SLSA SNECMA Atar STOL Sailplane Single engine Sky rocket Slender wing Spoilers Stato Reacteur Stealth fighter Stratosphere TCAS The 'FireFlash' Plausibility Report Thunderwarrior Trans Atlantic Tumbling Turbofan USAF VOR VSKYLABS Martin Marietta X-24A VSKYLABS NASA'S M2-F1 VSKYLABS Northrop M2-F2 VSKYLABS RC F40&Countach VSKYLABS Reviews VSKYLABS UL-104 J/R WW2 Warhead Weapon bays Weight shifting Westinghouse J34-WE-7 Williams FJ44-4 Wooden aircraft XF-103 XF5F XJ-67-W-1 a-12 balloon wheels brushless cruise daedalus 88 de Havilland flight path guidance personal powered projectile recharge rocket belt stall subsonic surface to air tail dragger tail wheel utility vertical stabilizer