McDonnell-Douglass F-203 (A,B,C,D,E) "Dragon-II" Air Superiority and Strike Aircraft

(Version 1.0 - Last updated: 08/07/02)
Background and RPG stats by Kenneth Olson
Based off a design shown in Robotech Episode 33 "Rainy Night"

BACKGROUND

The McDonnell Douglas F-203 Dragon-II is an air-dominance fighter built for the United States armed forces during the global civil war of the 1990ís to replace the aging F-15 fighter.  In 1990, the United States Advanced Tactical Fighter program was to select a front-line fighter to succeed the F-15 through a competition between Lockheed/Boeing/General Dynamics YF-22 and the Northrop/McDonnell Douglas YF-22; however, with the start of the Global Civil War in 1992 both designs were still years away from operational status.  The design team at McDonnell Douglass proposed the F-203 Dragon II as an interim solution.  The F-203 would have many of the advanced aerodynamic properties of the YF-22, but would lack the advanced stealth and electronics that still needed years of development.  First flight took place on March 21, 1992 with the first combat squadrons forming with the USAF only eight months later. 

The early model F-203 fighters make extensive use of carbon composites to reduce weight and reduce the passive radar cross section of the aircraft.  However titanium, or titanium alloys, still makes up a large percentage of the structural material (38%) and makes up large portions of the fuselage, keel, and aft booms that hold the horizontal and vertical stabilizers.  Each wing is made of carbon-fiber/Bismaleimide (BMI) which is stronger than traditional thermoplastic-matrix composites.  However, the maximum speed of the unit is reduced from Mach 2.4 to 2.6 because BMI can not tolerate temperatures as high as conventional composites

The fuselage layout consists of a central structure flanked by two engine bays; this large volume contains the primary internal fuel for the F-203 with an internal capacity of over 7,800 liters of fuel for the -A model.  Two intakes lead aft and toward the centerline in an S-curve to feed the engines mounted in a side-by-side configuration between the tails.  Two Pratt & Whitney F122 two-spool, low-bypass turbo fans with contra-rotating high and low pressure turbines with vectoring nozzles power the F-203 A/B.  The F-203 vectoring nozzles are effective in enhancing the Dragonís high angle-of-attack maneuverability with the unit capable of greater than 60-deg angles of attack at altitudes up to 60 kft. 

Flight control is provided through a Fly-By-Wire (FBW) system and is a principal element in the wide flight envelope open to the F-203. Although hard to document, Western Coalition pilotís claimed during the war that they could try nearly any maneuver without losing control.  The sensor system on the F-203 was the most advanced for the time consisting of a Raytheon APG-72 multi-mode Electronically Scanned Array (ESA) radar.  The system is capable of detecting a fighter-sized target (0 dBsm) out to 100 kilometers while minimizing emissions.  The APG-77 can function as a synthetic aperture radar providing target quality coordinates to onboard air-to-ground weapons or other platforms. 

Unlike the F-22, the F-203 does not have any internal weapons bay and therefore carries weapons on ten externally mounted hardpoints, three under each wing and four under the fuselage.  Use of these external hardpoints raises the passive radar cross section of the F-203 when used.  Each of the pylons can mount a single AIM-9X or AMRAMM missile or up to 500 kg of ordinance.  Targets are displayed either on a conventional cockpit HUD or inside the pilotís helmet.  Rounding out the armament for the Dragon-II are two M6A2 20mm six barrel cannons over the right and left engine inlets.  The cannons are fed through two double-ended hydraulically driven linkless feed systems from a single internal ammunition drum holding 1200 rounds.

A total of 2,250 F-203A were built for the USAF and an additional 450 were built under license for other members of the Western Alliance from 1992 until 1996.  The -A model was capable of out flying all contemporary Eastern Co-Prosperity Sphere (ECPS) fighters including the MIG-31 racking up an impressive 10 to1 ratio in kills.  A total of 172 F-203A fighters were destroyed in air-to-air combat; however, 374 were killed by surface to air missiles.  Production of -A model ended in 1996 with the introduction of the -C model outfitted with the ALE-50 towed decoy to help minimize the effectiveness of RF guided SAMs.  Although production stopped in 1996, fighters were desperately needed for the global conflict and -A fighters were used throughout the duration of the conflict.  The final -A models were finally retired in 2009 from the UNDF.

F-203B

In March 1992, two months after the opening shots of the Global Civil War, the United States Navy needed to find a new aircraft to replace the F-14.  As the F-203 was already in pre-production for the USAF, the USN requested a navalized version of the F-203 airframe later designated as the F-203B.  A total of 650 units were produced exclusively for the USN from 1992 until production was switch to the -D model in 1996.

The F-203B shares nearly 95% common components with the USAF ĖA model; however there are a couple of noticeable modifications.  First, the fuselage was extended by five feet to allow the inclusion of a twin seat cockpit.  The second position in the rear of the pilot would be manned by a Weapon Systems Officer, WSO.  The extended cockpit extends back into the primary internal fuel tanks reducing their capacity by nearly 800 liters.  The airframe and landing gear were strengthened and a tail hook was added to allow the F-203 to operate off of carriers.  The added structure, however, increases the weight of the aircraft by nearly 400 kg, which makes the navalized version slightly less maneuverable than the ĖA model and coupled with the reduction of the internal fuel supply reduces the combat radius by nearly 400 km.

 F-203C/D

Four years after the introduction of the F-203 A/B, an upgraded version of both the air force and naval version of the Dragon-II was first proposed and four months later entered into production.  The F-203C was a single seat fighter designed for the USAF to replaced the -A and the F203D would be a two seater for the USN to replace the earlier -B model.  Both versions were designed around the P&W F114 turbo fan engines producing 5% additional thrust while improving fuel efficiency over the older F112 models.  Although, a majority of the electronics and all of the weapon systems were retained from the earlier design, the -C/D models was outfitted with the ALE-50 RF towed decoy.  The ALE-50 decoy provides protection against RF surface to air missiles and is deployed from two dispensers on either wing.

The -C/D models was the primarily air-superiority fighter for the Western Alliance during the last three years of the Global Civil War.  A total of  3,740 -C and 758 -D models were produced from 1996 until the conflict ended in 1999 once the SDF-1 crashed on Earth.  The newer design, although an evolutionary improvement over earlier models, was able to maintain its performance edge over Eastern  Co-Prosperity forces continuing to win air to air combat engagements.  With the end of the Global Civil War the -C/D models continued to serve as front line units for the UNDF until 2010 at which point the remaining 743 units were mothballed and replaced by newer -E models and VF-1 "Valkyrie" fighters.

F-203E

The F-203E was produced exclusively for the UNDF making full use of all the advances in materials brought about through the recent discoveries on board the SDF-1.  The resultant aircraft possessed 200% the armor protection over the earlier models while maintaining the same weight.  Two new General Electric F482-GE-400 turbo fan engines provide nearly 20% additional thrust over earlier models and increased the top speed of the F-203E to nearly mach 3.0 at an operational altitude of 34,000 ft.    Two major improvements were made on the electronics for the aircraft.  A new electronically scanned AN/APG-79 radar was added in the nose of the aircraft providing an increase of 50% the detection range over the older APG-72 and the ALE-50 RF towed decoy was replaced with a newer fiber optic ALE-55 decoy providing enhanced protection against surface to air missiles.

A total of 743 F-203E fighters were produced from 2006 until 2009 once manufacturing was switch over to the VF-1 "Valkryie".  Although the production run was short, the F-203E proved to be an effective air superiority fighter nevertheless continuing the tradition of its earlier brethren.  The F-203E was involved in several engagements with anti-unification rebels from 2006 until resistance was effectively ended by 2010.  Although a majority of the equipment flown against the F-203E was typically over a decade old, the F-203E during those three years shot down over 76 aircraft while losing only 12 aircraft to surface to air missiles.  F-203E  first engaged Zentraedi forces in South American in 2012 only a couple of months before the destruction of the SDF-1.  Although the Dragon-II was not particularly effective in engaging ground mecha units, the F-203E did have success in engaging aerial Zentraedi units.  The Dragon would enter into combat with VF-1 fighters firing their missiles at the incoming forces and then disengage allowing the VF-1 to tackle any targets which survived the initial assault.  From 2012 until its final retirement from the RDF in 2016, squadrons of F-203E were slowly withdrawn from service and given to the newly formed Southern Cross Tactical Air Force.  The F-203 continued to serve with the ASC until all the remaining 123 fighters were mothballed in 2020. 

 

RPG STATS

Vehicle Type: F-203 "Dragon II"
Class: Air superiority and strike aircraft
Manufacturer: McDonnell-Douglass
Crew:
F-203 (A,C,E):  One pilot
F-203 (B,D):  One pilot and one Weapon Systems Officer (WSO)
Service History:
F-203A: Single seat air superiority aircraft, served with the United States Air Force from 1995-2002
F-203B: Dual seat air superiority / strike aircraft, served with the United States Navy from 1995-2002 and later with the UNDF Navy from 2002-2009
F-203C:  Single seat air superiority aircraft, served with the United States Air Force from 1998-2002 and later with the UNDF Air Force from 2002 until 2010
F-203D:  Dual seat air superiority / strike aircraft, served with the United States Navy from 1998-2002 and later with the UNDF Navy from 2002-2010
F-203E:  Single seat air superiority / strike aircraft, served with the UNDF Air Force and Navy from 2006-2016 and later with the Armies of the Southern Cross Tactical Air Force from 2012 until 2020
 

MDC BY LOCATION:

Location F-203 (A,C) F-203 (B,D) F-203 (E)
* Pilot's Cockpit 50 60 120
* Rear Stabilizers (2) 20 each 20 each 60
* Wings (2) 50 each 50 each 120
Engines (2) 30 each 30 each 60
** Main Body 60 60 150

NOTES:

  1. * Destruction of any of these components will cripple the aircraft sending it into a death spin.
  2. ** Depleting the MDC of the main body will destroy the unit.

SPEEDS:

MAXIMUM SPEED:
F-203 (B):  1300 kph  (Mach 1.05) at sea level and 2230 kph (Mach  2.1) at 30 kft
F-203 (A,D):  1350 kph (Mach 1.1) at sea level and 2550 kph (Mach 2.4) at 30 kft
F-203 (C):  1500 kph (Mach 1.2)  at sea level and 2975 kph (Mach 2.8) at 30 kft
F-203 (E):  1600 kph (Mach 1.3)  at sea level and 3190 Mach 3.0
CRUISE SPEED (max performance without afterburner):
F-203 (B):  1380 kph  (Mach 1.3)
F-203 (A,D):  1490 kph (Mach 1.4)
F-203 (C):  1700 kph (Mach 1.6) 
F-203 (E):  1805 kph (Mach 1.7)
STALL SPEED:
F-203 (B,D):  110 kph
F-203 (A,C):  130 kph
F-203 (E):  120 kph
CLIMB RATE:
F-203 (B):  20,000 meters per minute
F-203 (A,D):  22,000 meters per minute
F-203 (C):  25,000 meters per minute
F-203 (E):  28,000 meters per minute
CEILING:
F-203 (A,B,C,D):  18,000 meters (60 kft)
F-203 (E):  20,000 meters (65 kft)
MIN TAKE-OFF DISTANCE AT SEA LEVEL:
F-203 (A,C):  350 meters
F-203 (B,D):  280 meters
F-203 (E):  300 meters
MIN LANDING DISTANCE AT SEA LEVEL:
F-203 (A,C):  350 meters
F-203 (B,D):  280 meters
F-203 (E):  300 meters
DESIGNED G LIMITS:
+12.0/-4.5 (Computer overrides at 10.5g)
MAX COMBAT RADIUS:
F-203 (B,D):  1800 km
F-203 (A,C): 2200 km
F-203 (E):  2500 km
MAX RANGE RANGE (without external stores):
F-203 (B,D):  4800 km
F-203 (A,C): 5200 km
F-203 (E):  5600 km

STATISTICAL DATA:

LENGTH:
F-203 (A,C,E):  17.3 m
F-203 (B,D):  19.3 m
WINGSPAN:
14.0 m
HEIGHT:
5.6 m
WEIGHT (DRY):
F-203 (A,C):  18,000 kg
F-203 (B,D):  20,000 kg
F-203 (E):  18,800 kg
 ENGINE THRUST
F-203 (A,B):  2 x Pratt & Whitney F122 two-spool, low-bypass turbo fans with contra-rotating high and low pressure turbines with thrust-vectoring nozzles, 137 kN static thrust with 200 kN of afterburner
F-203 (C,D):  2 x Pratt & Whitney F134 two-spool, low-bypass turbo fans with contra-rotating high and low pressure turbines with thrust-vectoring nozzles, 145 kN static thrust with 210 kN of afterburner
F-203 (E):  2  x General Electric F482-GE-400 turbo fan engines with thrust-vectoring nozzles providing STOL capabilities, 160 kN static thrust with 250 kN of afterburner.
FUEL CAPACITY:
F-203 (A):  2,070 US gal (7,835 liters)
F-203 (B):  1,850 US gal (7,003 liters)
F-203 (C):  2,120 US gal (8,025 liters)
F-203 (D):  1,950 US gal (7,382 liters)
F-203 (E):  2,300 US gal (8,706 liters)

WEAPON SYSTEMS:

  1. (All) 2 x M61 20MM SIX-BARRELED GATLING GUN: Two M61A1 Vulcan 20-mm cannons are mounted in blisters on either side of the main fuselage.  The cannons are mounted on a geared rotor that is driven by a 20-hp electric motor which turns the barrels while each one fires individually.  The cannon is capable of firing up to 7,200 rounds per minute with a muzzle velocity of 1,030 meters per second.  Each cannon is fed from an internal 800 round storage drum which feeds the cannon with a double-ended hydraulically driven linkless feed system. 

     

  2. 10 x BODY/WING HARD POINTS:   25,000 lb (11,340 kg) of external stores can be mounted on six hard points mounted on either wing and four under the main fuselage.  Weapons include:  AGM-88 HARM anti-radar missiles, AGM-88 Maverick anti-tank, AGM-130 air-to-ground, AGM-154 JSOW, GBU-10/-12/-15/-28 laser guided bombs, GBU-31/-32 JDAM, AIM-9, AIM-7, AMRAAM, or AMM-1 Stiletto missiles.  Typical loadout will include six Stiletto medium range missiles on wing hardpoints and a centerline 500 Gal tank.


STANDARD EQUIPMENT FOR THE DRAGON-II:


COMBAT BONUSES FOR F-203 "DRAGON II" TRAINING:


Random Hit Locations

When there is an equal chance of hitting both sides from 1D6

When there is a preferred side, roll 1D10

F-203

FRONT

BACK

SIDES

TOP

BOTTOM

Pilot's Compartment (Main Body) 01-40 01-10 01-30 01-30 01-30
Rear Stabilizers (Main Body) 41-50 11-35 31-40 31-35 -
Wings (Main Body) 51-70 36-55 41-55 36-60 31-60
Engines (Main Body) 71-85 56-70 56-60 61-70 61-70
Main Body 86-00 71-00 61-00 71-00 71-00

REFERENCES USED IN THIS DESIGN

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