SkyKnight Presents: “Nordic Trident” series

1983…The Cold War has turned hot. The Scandinavian countries of Denmark, Norway and Sweden, which form the “Nordic Trident”, find themselves smack dab in the middle of a shooting war between NATO and the USSR.  Strap yourself into an AJ37 Viggen and fly with the famed Norrbotten Wing (F 21) in this mini-campaign. Our Tridents engaged and killed an ASW Group operating in the Norwegian Sea, but that may have only been half the story…

INTRODUCTION

 January 1983

The Scandinavian countries of Denmark, Norway and Sweden, which form the “Nordic Trident”, are at risk of invasion by the USSR. Two of those countries are members of NATO, and while Sweden’s public stance has always been one of neutrality, the threat of Soviet invasion, along with their pact with Norway and Denmark as part of the “Trident” has Sweden secretly cooperating with NATO.

The Soviet objective to control the North Atlantic and submarine access to the sea routes between the United States and Europe is well known. To achieve this, the Soviet Union must reach the North Atlantic as rapidly as possible. NATO believes the Soviet attack plan is not to invade Sweden but to go around the country, across the Danish Belts, and also to attack northern Norway from the Kola Peninsula. Sweden would then be “isolated”.  NATO thinks Moscow is hoping that Sweden will remain neutral as it did in the Second World War, when Germany invaded Denmark and Norway.  What the Kremlin does not know is that neutrality for Sweden is something of a sham. We will not hesitate to come to the defense of the Nordic Trident when faced with invasion.

 

Norrbotten Wing  (F 21)

Norrbotten Wing (F 21) is a Swedish Air Force wing dating back to 1941 and the second World War, tasked with defending northern Sweden. F 21 has received their dispersal orders and formed a rapid response unit. While our main base is located in Luleå in northern Sweden, we are currently operating from a network of improvised road bases near or inside the border with Norway, above the arctic circle.

 

TRAINING
Navigation systems are not perfect. Minor errors are inherent to the aircraft position and attitude measurements in all the contributing sources and sensors. A position error will always exist and eventually increase during the flight. Why should we care about it, then? Well, the aircraft’s assumed position will differ from the “real” position of the aircraft, accumulating “drift” in the process.  This “drift” can be tracked on the CK37 display:

  • Digits 1-4: indicate Longitude and Latitude (in degrees and minutes). The data field flashes, alternating between longitude and latitude coordinates.
  • Digit 5: indicates TERNAV status
    • 0: TERNAV inoperable
    • 1: TERNAV STBY not sending any output (you’re probably out over the sea)
    • 2: TERNAV OK, mode rough search (attempting to orient itself)
    • 3: TERNAV OK, mode fine search (higher resolution, still attempting to orient itself)
    • 4: TERNAV OK and operating, but not in use
    • 5: TERNAV OK and operating, system sending automatic fixes to CK37 Flight Computer.
  • Digit 6: indicates the position error (drift) in km

 

Since the Viggen relies heavily on preset waypoints for navigation and weapon employment, having an increasing error can cause some serious problems if left unchecked.

This is where fixes come in: you can update the aircraft position to eliminate (or at least reduce) the position error. While there are systems that automatically and continuously make small error corrections, the most effective way to have a reliable “correction” is to use a “manual fix”. Before we dive in the “how”, let’s clarify a few things first.

There are two categories of “fixes”:
Own-Position (Navigation) Fixes: This type of fix updates the position of every waypoints within the flight plan. This is to be used once you notice a significant drift within the navigation system, which often happens when you see a waypoint on the CI (Central Indicator) radar display and it does not match the position you expect it to be, which is generally a landmark that’s easy to recognize like a city, an airport, a river or a harbor.

Target Fixes: This type of fix updates the position of a single Target Point M# without changing the coordinates of the whole flight plan database. Its primary use is to designate a target on the radar and update its position. This fix does not impact the aircrafts estimation of its position, but merely moves the selected waypoint.

Each fix type can be performed with either a “Visual Fix” or a “Radar Fix”.

Visual Fix: The pilot creates a visual fix when flying directly above the “real position”. The fix mode is prepared by depressing the first stage of the fix trigger of the radar control stick (T1). When directly above the position, the pilot depresses the second stage of the fix trigger (TV).
Radar Fix: Using the radar to create a fix enables fixes to be made from a significant distance, even in poor weather, depending on radar picture quality. Radar fixes aid in fine-tuning waypoints at a distance on easily recognizable terrain features.

The best way to use a “visual fix” is to use a waypoint set on a location that is easily recognizable. Coastal cities or airports are good landmarks to use to perform your visual navigation fix.

To perform the Visual Navigation Fix:

  1. Set Master Mode to NAV
  2. Confirm Data Selector in CUR POS – OUTPUT
  3. Select the Waypoint you want to use as a reference for the visual fix.  Lets call it B5
  4. Set Radar mode OFF to A0 (Radar Mode Switch FWD).
  5. Before you reach the reference point (real position of Waypoint B5), press the radar trigger to (T1).
  6. While T1 is active, Destination Indicator will display “E”, meaning that a nav fix is in progress. A blinking E means your Radar is still ON or you are not in NAV mode. 
  7. Fly over the visual reference point (the real location of waypoint B5).
  8. When directly over the point, press the radar trigger to (TV). This will complete the fix.
  9. When you have pressed the (TV), the visual fix is performed and the position error is corrected.  All other waypoints in the flight plan are shifted by the same offset to ensure a consistent flight path.
  10. The next waypoint in the flight plan (B6) will immediately be selected since you are now flying directly over Waypoint B5’s updated location.

 

BRIEFING
SIGINT reveals a high probability that the Soviet ASW Surface Group we engaged and killed was not acting alone.  They were working in concert with a flotilla of diesel-electric attack submarines.  Due to their relative short endurance time on station, they are being supported by an Ugra-class submarine tender, somewhere in the Norwegian Sea. The tender is a prime target, and is likely under the protection of at least one additional surface combatant, as well as being monitored by Soviet Naval air.  Norwegian P-3 Maritime Patrol Aircraft are flying reconnaissance now in an attempt to locate the tender.  If she is spotted, her location will be transmitted to our Tridents, which will be conducting our own radar and ELINT sweeps.

Ugra-class submarine tender

 

FLIGHT PLAN LOADED ON TO YOUR DATA CARTRIDGE

  • Depart FOB GARBO Road Rwy HDG 114
    • When ready to taxi, Follow-me bike will lead Tridents to the runway
    • STOL procedures… 3200 ft long rwy requires ZONE 3 afterburner
    • Road Rwy INS align Procedure: Data Selector to “HDG LIMIT” > “IN” > 1140 > “LS SKU” > “OUT” > “CUR POS”   This necessary step will ensure your CK37 INS is aligned prior to takeoff.
  • Proceed at low-level, high-speed to Norwegian Sea, and conduct your assigned patrol
  • Use Waypoint 5 on coast for INS Fix (Lighthouse)
  • Perform surface search with radar off Norwegian coast.
  • Waypoint 6 is end of your patrol route.  RTB is performed by following WP in reverse.
  • Norway has once again granted our air force permission to use Köbületi Air Base as a Forward Rearm and Refuel Point. This airfield will need to be manually input as Landing Site 2
    • Procedure:  Data Selector to “REF/LOLA” > “IN” > 9913 > “L/MAL” > “OUT” > “CUR POS”.   Confirm by pressing L/MAL repeatedly to cycle between L1 and L2 landing site. 
  • RTB FOB GARBO… Landing Road Rwy HDG 294
    • STOL procedures… AFK Mode 3 with 15.5 button ON
    • Caution: this is a SHORT and NARROW road runway.  3200ft long and only 30 feet wide
    • Landing threshold marked with signage and lights
    • After landing, taxi forward to runway end markings and await the rest of your Trident. Once they have joined you on the ground,  meet up with the follow-me bike, which will then guide you to the entrance to the underground tunnel hangar

 

SKILLS REQUIRED FOR THIS MISSION

  • P-37/A Radar usage
  • Employ RB-04E anti-ship missile
  • STOL Takeoff and Landing
  • AFK (Autothrottle) Mode 3 usage for short field landing  – AFK engaged and 15.5 button ON
  • Waypoint Navigation
  • Input LAT / LONG coords as a TARGET fix
  • Perform an INS Fix over landmark waypoint to recalibrate INS

 

COMM PLAN

  • Important: You must cycle the FR-24 Radio knob from NORM + GUARD to the RIGHT and then BACK to NORM + GUARD to initialize SRS Radio.  This will allow you to listen in on Guard (121.5) while using your discrete FR22 radio.  With this configuration, SRS Radio 1 is Discrete FLT, and SRS Radio 2 is Guard.

  • Discrete FR22 Radio Button assignment as follows
    • Thor:  Button 1
    • Odin: Button 2
    • Loki: Button 3

 

TIGER FLIGHT BRIEF

  • Provide HAVCAP escort for P-3 Maritime Reconnaissance flight (callsign SAINT) over Norwegian Sea
  • NATO KC-10 Extender on station over Norway @ angels 20 for in-flight refueling of Norwegian F-16As
    • Callsign: Texaco
    • Freq: 250
    • TCN: 6X
  • ROE: Return Fire or Obtain Positive ID before engaging
  • Comm Plan: Use UHF Radio as discrete; Use VHF Radio to monitor guard and Shadow Control 121.5
  • Homeplate Köbületi Air Base

 

ADDITIONAL NOTES

  • Respawns available @ Köbületi Air Base
  • The Norwegian Sea is a busy place.  There is a NATO convoy sailing West towards a Norwegian port. 8 vessels with one Kidd-class destroyer escort. Approx 80km off the coast. 
  • Heatblur Easter Egg….If you begin shaking uncontrollably while on the ground, and you hear your teeth chattering… you’re FREEZING!!  Close the canopy! 
AIR TASKING ORDER
THREE Tridents… 3 Elements of 3 aircraft each  (* element leader)

THOR FLIGHT

  • SkyKnight*
  • Floundog
  • Airdog

 

ODIN FLIGHT

  • Rico*
  • Baldawg
  • Skunk

 

LOKI FLIGHT

  • Hook*
  • Vulcan
  • Zero

 

TIGER FLIGHT (Norwegian F-16A)

  • Mafia*
  • Additional slot available

 

Your assigned flight will remain your flight for duration of mini-campaign, unless attendance dictates otherwise.

While the intent of this mission series is to introduce a very unique and fun aircraft to the squadron that has otherwise been overlooked, there is one additional F-16A slot available in TIGER flight should a pilot wish to fly the F-16A instead of the Viggen.  This slot will remain first come first serve every week.  The F-16A role is purely ancillary, as the focus of the series remains squarely on the Viggen. There are no plans to expand the role of TIGER flight beyond the 2 human clients.

 

PILOT DUTY ROSTER

Enter your Callsign and confirm your availability for this mission by selecting either

(Flying) or (Grounded)

 

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