Thursday, November 26, 2015

F-19 Aircraft Technical Data


VSKYLABS F-19 Stealth Fighter Technical Data and Instructions



SCROLL DOWN FOR IMPORTANT INFORMATION AND INSTRUCTIONS
  • Role: Stealth strike fighter
  • Crew: One
  • Wing Span: 31'8"
  • Overall Length: 59'0"
  • Overall Height: 13'2"
  • Mission Weight at Takeoff: 46,000lbs
  • Engine(s): 2 × General Electric F414-GE-400 turbofans, dry thrust: 13,000 lbf (62.3 kN) each (no afterburners)
  • Range: 520 miles
  • Ceiling: 50,000'
  • Maximum Speed in level flight at 0': Mach 0.95
  • Maximum Speed in level flight at 36,000': Mach 1.1
  • Armament: Three internal weapon bays carrying 2 x AIM-120 AMRAAM's, 1 x AGM-N1 (classified).

The F-19 flying and handling characteristics:

Wing configuration:
Due to its long chines, ended backwards with an "outer" wing portions (as the wings themselves), the F-19 wing configuration is comparable with the cranked arrow wing concept (which was introduced into the F-16 design as a logical choice to substantially improve range, payloads and performance across all mission areas). This wing configuration retains the advantages of the Delta-wing for high speed flight, while overcoming it's disatvantages in excessive bleed rate and stability by having the outer wing portions at a reduced sweep angle. It also retains excellent low speed characteristics and minimizes trim-drag penalties common to tailless Delta wings: 
  • The increased wing and fuselage volume allows an internal fuel increase which greatly increase range and provides extensive weapons carriage possibilities.
  • This configuration increases skin friction drag but reduces wave, interference and trim drag for overall Net decrease.
  • Higher penetration speeds.
  • Reduced signature.
  • Improved flying qualities - stable at all conditions and loadings.
  • "Good ride" quality.
  • Lower radar signature (by 50% due to shape).
The F-19 is powered by two non-afterburning engines, having a thrust to weight ratio of less than one. In addition, the aircraft's low aspect ratio Delta wing configuration produces high Drag when maneuvering in a high angle-of-attack attitudes ("high Alpha"). This combination is causing the F-19 aircraft to bleed airspeed while maneuvering, and loose it's energy rapidly (kinetic potential). The low thrust to weight ratio also limits its ability to gather back its energy while maneuvering.This factor is causing the F-19 to be very vulnerable behind enemy lines, and great attention must be invested by the pilot when flying the aircraft and managing it's energy. Remember: Speed is energy. Energy helps you get in and out of battle.


The F-19 is very vulnerable once engaging into a close range dogfight

The VSKYLABS F-19 Stealth Fighter armament:

The VSKYLABS F-19 Stealth Fighter's primary mission is to penetrate deep into the designated target area, launch it's medium-range air to surface tactical nuclear missile, and head back to base, undetected. The F-19 carries 2 x AIM-120 AMRAAM for self defense or Fighter-Sweep objectives.

The AIM-120 AMRAAM
The AIM-120 Advanced Medium-Range Air-to-Air Missile, or AMRAAM, is a modern beyond-visual-range air-to-air missile, capable of all-weather day-and-night operations. It employing active transmit-receive radar guidance and it is a fire-and-forget upgrade to the previous generation Sparrow missiles. When an AMRAAM missile is being launched, NATO pilots use the brevity code "Fox Three".
  • Type: Medium-range, active radar homing air-to-air missile.
  • Place of originUnited States.
  • Specifications:
    • Weight 335 pounds (152 kg)
    • Length 12 feet (3.7 m)
    • Diameter 7 inches (180 mm)
    • WarheadHigh explosive blast-fragmentation (40-50 pounds)
    • Detonation mechanism: Active RADAR Target Detection Device (TDD)
    • Engine: Solid-fuel rocket motor
    • Wingspan20.7 inches (530 mm)
    • Operational range: 
      • AIM-120A/B: 55–75 km (30–40 nmi)
      • AIM-120C-5: >105 km (>57 nmi)
      • AIM-120D (C-8): >180 km (>97 nmi)
    • SpeedMach 4 (4,900 km/h; 3,045 mph; 1.3612 km/s)
    • Guidance system: inertial guidance, terminal active radar homing
The AGM-N1
Medium range air to surface missile, carrying a tactical nuclear warhead (classified).

Firing one of its two AIM-120 AMRAAM missiles
Launching the AGM-N1(classified)
Considerations when firing missiles: The AGM-N1 Missile drop up to 300' from the aircraft when launched, due to it's booster ignition suspension. As a general rule, don't launch the missile at low altitude. It may hit the ground before it can flyaway to the target.


The F-19: General performance characteristics:

Some reference numbers:
  • Takeoff - 35,000 lbs:
    • Rotation: 160 knots.
    • Lift off: 175 knots.
  • Take off - 46,000 lbs:
    • Rotation: 170 knots.
    • Lift off: 185 knots.
  • Lift/Drag ratio: 
    • 4.8 - Normal flight / 300 knots.
    • 3.6 - Near stall.
  • Suggested climb profile to 38,000' / Mach 0.95:
    • Initial climb at 350 knots to 20,000'
    • At 20,000': Accelerate to Mach 0.8
    • Climb at Mach 0.8 to 30,000'
    • Climb at Mach 0.85 to 38,000' and gradually pitch off to reach Mach 0.95 
  • Airspeed Management:
    • Above 28,000': 
      • Do not perform maneuvers below Mach 0.85
    • Below 28,000':
      • Horizontal maneuvers: Combat speed is Mach 0.85 (best turn rate).
    • Low Altitude (below 7000' AGL):
      • Corner speed is Mach 0.85 / 520 knots.
      • Maximum allowable g load factor: 7g
  • Landing:
    • Final: 180-190 knots.
    • Touch down speed: 165 knots.

Front Cockpit Panel - Main Switches
  1. Air to Air / Air to Ground Weapon selector.
  2. Re-arm all weapons.
  3. Fire extinguishers (left/right engines).
  4. Tactical/Navigation map (toggle push on the screen  to move the head to the left side).
  5. Instruments brightens.
  6. Map zoom selector (top to bottom switches, up – see far / down – see close).
  7. HSI needle selector (right/left).
  8. Map mode selector (cyclic).
  9. Heading bug selector (right/left).
  10. Display layers selectors (VOR's, NDB's, TCAS...).
  11. Warning Annunciator panel #1
  12. Flight data and Recon camera MFD (toggle push on the screen to change field-of-view setting 65/95 degrees).
  13. HUD power on.
  14. HUD brightness ratio.
  15. Recon camera on/off switch.
  16. Recon camera tilt/field of view switches.
  17. General navigation screen ( (toggle push on the screen  to move the head to the right side).
  18. Autopilot mode selectors (alt/heading/pitch/terrain follow/wing level).
  19. Autopilot on/off switch.
  20. Braking Chute.
  21. X-Plane's GPS (click on the screen to toggle pop-up).
  22. ECAM MFD.
  23. ECAM display selectors (engine/ fuel management and systems status)

Side Cockpit Panels - Main Switches
  1. Engines shut-off switches (left/right).
  2. Engines start-up switches (left/right).
  3. Fuel Dump switch (on/off).
  4. Fuel transfer switches (both tanks - transfer fuel to TANK NO#).
  5. Ext lights - Navigation and Strobe lights.
  6. Artificial stability: Yaw Damper / Artificial Stabilization.
  7. Landing lights switch.
  8. Oxygen meter.
  9. Parking brakes.
  10. Landing gears handle.
  11. Tail-hook handle.
  12. Annunciator panel #2.
  13. Avionics on/off switch.
  14. Annunciator test button - CLICK AND HOLD.
  15. Electricity panel: generators #1/#2, inverters, battery switches.
  16. Pressurization DUMP switch.
  17. Pitot tube heating switch.
  18. Anti icing systems switch.
  19. Bleed air switch on/off.
  20. Interior panel lights (left/right/center).


Flying tips for X-Plane flight simulator:
  • The aircraft loads up with a 2D HUD display. To switch on the 3D HUD display, you have to turn off the 2D HUD, by using the "HUD power on" toggle switch (no.13 in the front panel map. Scroll up here to see it). This switch toggles between the 3D & 2D HUD. Brightness of the 3D HUD is controlled by the instruments brightness rheostat.
  • Enable X-Plane's "show instrument instruction in the cockpit" (by entering the 'About/Instructions' window in the simulator, and mark/un-mark the check box in the bottom of the window. After you enable it, you can point your mouse to any relevant switch/screen in the cockpit and read useful information about it.
  • For takeoff and landings click on one the MFD's screens to adjust field-of-view and head position to see the runway center line.
  • When landing on regular/long runways and on an aircraft carrier, do not extend the air-brakes on final approach. Extension of the air-brakes result in an additional 1-2 degrees to nose attitude and affects forward visibility in a 3-4 degrees final.
  • When landing on short runways (air strips in the desert), extend the air-brakes on final approach and deploy the braking chute upon touchdown.
  • Important Joystick assignments:
    • Assign the 'Pitch trim up/down' and 'Aileron trim left/right' to your joystick HAT switch.
    • Assign the 'Speed-Brakes extend full/retract full'.
    • Assign the 'Target select up/down'.
    • Assign the 'Deploy flare/chaff'.
    • You can assign the 'Weapon select up/down' or use the A/A / A/G click switches in the cockpit.
    • You can assign the 'Fire all armed selections' or use the space-bar to fire a weapon.
  • Navigation Aids:
    • Click on the lower left screen to pop up X-Plane's GPS.
    • Use the buttons around the left/right MFD's to set the needed zoom, map mode, Nav aids display modes, TCAS, heading bug and HSI needle setting.
****


The VSKYLABS F-19 Stealth Fighter Autopilot reference guide.

Attached below is a quick guide for the F-19 Autopilot modes of operations. It is a simple yet very useful Autopilot system with 5 modes of operation. Note that when a mode is being selected, it is highlighted by a green light, and an additional a green "POWER" light is also turned on.

To turn off the Autopilot, hit the green "Power" light-button, and to reset the Autopilot - hit it again to turn in on.


ALT mode:
Push it to keep a certain flight level. If you pushed it during a climb or a descent, the Autopilot will fly the aircraft so it would stop the climb/descent and get back to the specific altitude in which the ALT button was pressed on.

You will notice that when you selecting the ALT mode, both ALT and WLV modes are selected. This is because when selecting ALT mode during a turn (while climbing or descending), the Autopilot will keep the aircraft banking attitude which was during the ALT mode selection.
HDG mode:
Use this mode to couple the Autopilot with the Heading Bug (the pink heading bug which is visible in both left and right MFD's, and can be changes during flight using the two buttons on the left, lower side of the displays.

You can select this mode once stabilized in a certain altitude on a ALT mode (green light). In this case, the ALT mode will remain active with a green light, while the WLV mode (which turns ON when ALT mode is being selected) will turn of. Reason is that the banking attitude is now coupled with the HDG mode.

If you select HDG mode, while no other mode is being selected, while the aircraft is climbing or descending, the ALT mode will set up in a yellow light, but will not be engaged, while the PTCH mode will be automatically selected to maintain the specific pitch attitude which was during the selection of the HDG mode.

PTCH mode:
Use this mode to keep a desired nose attitude. The Autopilot will set up a fixed nose attitude (bank+pitch), which was during this mode selection.

Note that when selecting the PTCH mode, the ALT mode will turn yellow, indicating that it is armed but not engaged, and the WLV will turn green, indicating that the WLV mode is engaged, as the aircraft will maintain its pitch attitude as well as the wing level attitude.

TERR mode:
This model is for low level flight in a terrain following mode, keeping the aircraft at an avarage height of 200 feet above ground level.
You can engage the TERR mode with the HDG mode, and change the aircraft course with the heading bug, or you could engage only the TERR mode, and fly the aircraft manually. If you chose to fly it manually, keep in mind that you can push the stick and force the aircraft to hit the ground, so, it is recommended to engage the TERR mode, and fly the aircraft only with throttle and roll inputs. As you will roll the aircraft to turn, the Autopilot will add the needed pitch input (using the trim automatically), and will allow very tight/high G turns.

Note that the Autopilot is using the electric trim system for pitch control, and if you stressed out the Autopilot in tight maneuvers or if you have pulled the stick for a long period of time, "fighting" with the TERR mode, you could be surprized by unwanted trim position once you disengage the TERR mode. It is also recommended to to fly over steep terrain this the TERR mode engaged, because it will stress out the Autopilot, and it could not prevent an impact with steep mountain walls ahead of the flight path. This mode is perfect for tartical flight in canyions, while going around terrain obstacles and not "up and down" through the mountains.

Note that when selecting the TERR mode, the WLV mode will turn green and will be engaged also, so the aircraft will try to keep a horizontal bank attitude, as long as there is no stick inputs.

WLV mode:
Use this mode to keep a desired nose attitude. The Autopilot will set up a fixed nose attitude (bank+pitch), which was during this mode selection (similar to the PTCH mode). 


KEEP TRACKS OF THIS PAGE AS MORE DETAILED INFORMATION WILL BE ADDED ACCORDING TO VERSION UPDATES


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