Difference between revisions of "F-4EJ Kai Phantom II"
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== Description == | == Description == | ||
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| − | The ''' | + | The '''F-4EJ Kai (F-4EJ改)''' was a crucial upgrade for the {{Annotation|JASDF|Japan Air Self-Defense Force}} to extend the operational life and enhance the combat capabilities of its domestically produced [[F-4EJ|F-4EJ Phantom IIs]], which were becoming outdated by the early 1980s. Initiated under the Aircraft Structural Integrity Program (ASIP), the modernization effort began in 1980, with development taking place between 1981 and 1982, leading to its first flight in 1984. This upgrade introduced advanced radar and {{Annotation|FCS|Fire Control System}}, improved navigation and communication capabilities, and integrated modern missiles and bombing systems. A total of 90 F-4EJ Phantoms were converted to the F-4EJ Kai standard, enabling them to serve for an additional three decades until their decommissioning in 2021, with the last unit retiring under the [[F-4EJ ADTW|Air Development and Test Wing (ADTW)]]. This program significantly extended the lifespan and operational relevance of Japan's Phantom fleet, ensuring its competitiveness in modern air combat. |
| − | Introduced in [[Update "Direct Hit"]] | + | Introduced in [[Update "Direct Hit"]], the '''F-4EJ Kai''' is one of the earliest jets to receive Pulse-Doppler (PD) radar in future updates, allowing this oldtimer to remain competitive against newer generations of jets. While it retains the classic [[F-4 Phantom II (Family)|F-4 "Phantom II"]] fuselage, the F-4EJ Kai has been upgraded with 1990s technology to keep it relevant in modern combat. Notably, it shares the same PD radar, RWR and weapon suite as the [[F-16 (Family)|F-16A "Fighting Falcon"]], making it a formidable opponent. To maximize its effectiveness, pilots should focus on using the AIM-7Fs for long-range engagements and head-on attacks while relying on the AIM-9Ls for quick kills in dogfights. However, it’s crucial not to linger in close-quarters combat for too long, as more maneuverable jets can quickly gain the upper hand. Fire the missiles, secure the kill, and reposition before another opponent can sweep in. A more risky strategy involves intentionally slowing down the heavier F-4E airframe by making tight turns and using airbrakes, which can cause pursuing aircraft to overshoot. By flaring off incoming infrared missiles and forcing the enemy into an overshoot, the F-4EJ Kai can get on the opponent's six, allowing it to finish them off with either an AIM-9 or a precisely calculated gun burst using its ballistic computer. This tactic, while dangerous, can turn the tables on unsuspecting adversaries who underestimate the F-4 by overestimating their own speed and missile capabilities. |
== General info == | == General info == | ||
Revision as of 09:02, 2 September 2024
| This page is about the Japanese jet fighter F-4EJ Kai Phantom II. For other versions, see F-4 Phantom II (Family). |
Contents
Description
The F-4EJ Kai (F-4EJ改) was a crucial upgrade for the JASDF to extend the operational life and enhance the combat capabilities of its domestically produced F-4EJ Phantom IIs, which were becoming outdated by the early 1980s. Initiated under the Aircraft Structural Integrity Program (ASIP), the modernization effort began in 1980, with development taking place between 1981 and 1982, leading to its first flight in 1984. This upgrade introduced advanced radar and FCS, improved navigation and communication capabilities, and integrated modern missiles and bombing systems. A total of 90 F-4EJ Phantoms were converted to the F-4EJ Kai standard, enabling them to serve for an additional three decades until their decommissioning in 2021, with the last unit retiring under the Air Development and Test Wing (ADTW). This program significantly extended the lifespan and operational relevance of Japan's Phantom fleet, ensuring its competitiveness in modern air combat.
Introduced in Update "Direct Hit", the F-4EJ Kai is one of the earliest jets to receive Pulse-Doppler (PD) radar in future updates, allowing this oldtimer to remain competitive against newer generations of jets. While it retains the classic F-4 "Phantom II" fuselage, the F-4EJ Kai has been upgraded with 1990s technology to keep it relevant in modern combat. Notably, it shares the same PD radar, RWR and weapon suite as the F-16A "Fighting Falcon", making it a formidable opponent. To maximize its effectiveness, pilots should focus on using the AIM-7Fs for long-range engagements and head-on attacks while relying on the AIM-9Ls for quick kills in dogfights. However, it’s crucial not to linger in close-quarters combat for too long, as more maneuverable jets can quickly gain the upper hand. Fire the missiles, secure the kill, and reposition before another opponent can sweep in. A more risky strategy involves intentionally slowing down the heavier F-4E airframe by making tight turns and using airbrakes, which can cause pursuing aircraft to overshoot. By flaring off incoming infrared missiles and forcing the enemy into an overshoot, the F-4EJ Kai can get on the opponent's six, allowing it to finish them off with either an AIM-9 or a precisely calculated gun burst using its ballistic computer. This tactic, while dangerous, can turn the tables on unsuspecting adversaries who underestimate the F-4 by overestimating their own speed and missile capabilities.
General info
Flight performance
| Characteristics | Max Speed (km/h at 12,192 m) |
Max altitude (metres) |
Turn time (seconds) |
Rate of climb (metres/second) |
Take-off run (metres) | |||
|---|---|---|---|---|---|---|---|---|
| AB | RB | AB | RB | AB | RB | |||
| Stock | 2,255 | 2,221 | 16000 | 26.5 | 27.4 | 141.6 | 131.6 | 850 |
| Upgraded | 2,419 | 2,340 | 25.6 | 26.0 | 204.3 | 172.0 | ||
Details
| Features | |||||
|---|---|---|---|---|---|
| Combat flaps | Take-off flaps | Landing flaps | Air brakes | Arrestor gear | Drogue chute |
| X | ✓ | ✓ | ✓ | ✓ | ✓ |
| Limits | ||||||
|---|---|---|---|---|---|---|
| Wings (km/h) | Gear (km/h) | Flaps (km/h) | Max Static G | |||
| Combat | Take-off | Landing | + | - | ||
| 1458 | 463 | N/A | 580 | 463 | ~11 | ~4 |
| Optimal velocities (km/h) | |||
|---|---|---|---|
| Ailerons | Rudder | Elevators | Radiator |
| < 810 | < 750 | < 700 | N/A |
Engine performance
| Engine | Aircraft mass | |||||
|---|---|---|---|---|---|---|
| Engine name | Number | Basic mass | Wing loading (full fuel) | |||
| General Electric J79-GE-17 | 2 | 13,965 kg | 403 kg/m2 | |||
| Engine characteristics | Mass with fuel (no weapons load) | Max Takeoff Weight | ||||
| Weight (each) | Type | 9m fuel | 20m fuel | 30m fuel | ||
| 1,750 kg | Afterburning axial-flow turbojet | 15,724 kg | 17,787 kg | 19,829 kg | 24,000 kg | |
| Maximum engine thrust @ 0 m (RB/SB) | Thrust to weight ratio @ 0 m (WEP) | |||||
| Condition | 100% | WEP | 9m fuel | 20m fuel | 30m fuel | MTOW |
| Stationary | 5,200 kgf | 8,008 kgf | 1.02 | 0.90 | 0.81 | 0.67 |
| Optimal | 5,200 kgf (0 km/h) |
10,170 kgf (1,400 km/h) |
1.29 | 1.14 | 1.03 | 0.85 |
Survivability and armour
- 8.5 mm of Steel below the cockpit.
Modifications and economy
| Flight performance | Survivability | Weaponry | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
Armaments
| Ballistic Computer | ||||
|---|---|---|---|---|
| CCIP (Guns) | CCIP (Rockets) | CCIP (Bombs) | CCRP (Bombs) | Lead indicator |
 |
|
|
|
|
Offensive armament
The F-4EJ Kai Phantom II is armed with:
- 1 x 20 mm JM61A1 cannon, belly-mounted (640 rpg)
- 30 x large calibre countermeasures
- 60 x countermeasures
Suspended armament
The F-4EJ Kai Phantom II can be outfitted with the following ordnance:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |  | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 mm GAU-4 cannons (1,200 rpg) | 1 | 1 | 1 | |||||||||
| 500 lb LDGP Mk 82 bombs | 6 | 3 | 6 | 3 | 6 | |||||||
| 500 lb Mk 82 Snakeye bombs | 6 | 3 | 6 | 3 | 6 | |||||||
| 750 lb M117 cone 45 bombs | 3 | 3 | 5 | 3 | 3 | |||||||
| FFAR Mighty Mouse rockets | 57 | 57 | 57 | 57 | 57 | |||||||
| Zuni Mk32 Mod 0 ATAP rockets | 12 | 12 | 12 | 12 | 12 | |||||||
| AIM-7E Sparrow missiles | 1* | 1* | 1* | 1* | ||||||||
| AIM-7F Sparrow missiles | 1* | 1* | 1* | 1* | ||||||||
| AIM-9L Sidewinder missiles | 2 | 2 | ||||||||||
| AIM-9P Sidewinder missiles | 1, 2 | 1, 2 | ||||||||||
| 600 gal drop tanks | 1 | |||||||||||
| Maximum permissible loadout weight: 7,400 kg Maximum permissible wing load: 3,000 kg Maximum permissible weight imbalance: 1,500 kg | ||||||||||||
| * AIM-7E and AIM-7F Sparrow missiles cannot be mixed, only one type may be equipped across hardpoints | ||||||||||||
| Default weapon presets | |
|---|---|
| |
Usage in battles
The F-4EJ Kai is the ultimate Japanese package of the F-4 "Phantom II". Equipped with the same pulse-Doppler radar as on the F-16 "Fighting Falcon", the EJ Kai possesses the ability to use a fantastic radar for its airframe, battle rating, and missile arsenal to employ it in the best possible way, allowing it to quickly lock targets for AIM-9Ls and AIM-7Fs which can guarantee aerial kills above ~20 m ground clearance.
While the radar and cockpit avionics get a whole upgrade package (which greatly enhances its simulator capabilities due to its cockpit HUD), the airframe is still a Phantom II after all, lacking any real manoeuvrability without access to the "Agile Eagle" modification found on the American F-4E Phantom II. The F-4EJ Kai is, ultimately, a missile bus which hits hard.
As with all Phantom IIs, the EJ Kai is a multi-role fighter with the capability to carry plenty of rockets, gun pods and bombs. However, due to it serving under the Japanese JASDF and its defensive doctrine, it lacks GBUs, AGMs, or Napalm bombs found on other (late) model Phantoms. While it is certainly possible to go multi-role, due to its large amount of carry capacity, it will turn its missile bus experience into a freight train towards bases or ground targets. This is only advised for quick carpet passes in ground battles or when trying to unlock later modules in air battles with priority towards AAMs, as the enemies facing the F-4EJ Kai won't have any issues intercepting a loaded Phantom.
Pros and cons
Pros:
- Eased up modifications over the F-4EJ
- Comes with 2 x AIM-9Ps stock instead of 2 x AIM-9Bs
- 4 x AIM-9Ps is a tier I mod without the need of AIM-9Es
- A wide range of suspended armaments, suitable for any playstyle
- Powerful AIM-7F SARH missiles, with very long range, manoeuvres straight off the rails and have 25G of max overload
- Top-of-the-line AIM-9L missiles, having excellent manoeuvrability of 30G, long-range, great all-aspect tracking, and being pretty flare resistant when firing rear-aspect
- Can carry 8 missiles in total
- Deadly frontal armament with high burst mass
- Makes use of a ballistic computer to assist in the aim of cannons, rockets, and bombs against ground targets
- Large reserve of countermeasures
- AN/APG-66 radar - has diverse scan and tracking modes, very high resistance to notching and chaff, very long-range
Cons:
- Limited ammunition in the frontally-mounted cannon
- Lacks guided ordnance, limiting ground attack ability
- Terrible manoeuvrability along with mediocre acceleration and top speed, particularly compared to common opponents
- Doesn't have an Agile Eagle package like the F-4E and F-4F to increase manoeuvrability
History
Since the introduction of the Mitsubishi F-4EJ in 1968, it had been one of the cornerstones of the JASDF along with the F-104J and then later F-15J/DJ; but being a jet from the mid-1960s with inferior avionics and armaments to the latest Soviet jets also meant an extensive upgrade for the fleet of EJs was required. The plans for upgrading the 90 MHI-built F-4EJs which were still airworthy started in 1981 and the first retrofitted jet (07-8431) took to the skies in July 1984 and joined the JASDF in December. Upgrades included:
- Installation of J/AYK-1 guidance system for AShM and unguided bombs
- Replacing AN/APQ-120 with the latest AN/APG-66J with pulse-Doppler capabilities; J/AVQ-3 radar display and guidance system for SARH AAMs
- New J/ASN-4 digital INS navigation system
- New Kaiser Electronics HUD
- J/APR-6 RWR, AN/APX-76A IFF, and AN/ALQ-131 countermeasures
- HOTAS controls
- Lightning rods by the radome
- New fuel tanks
These features passed for the budgets of FY1987 and the upgrades for these jets finished by 1990.
By the time F-15J/DJs and F-2s joined the JASDF in larger quantities, F-4EJs (including the recon variant, RF-4EJ) were starting to retire. On 17 March, 2021, the very last 3 F-4EJ (Kai)s of the JASDF (17-8301[4038], 47-8336[M036] and 07-8431[M131]) retired from the Air Development and Test Wing (ADTW) in Gifu Airbase, Nagoya, bidding farewell of Phantoms in JASDF service. [1]
|
07-8431 (EJ Kai) and 17-8301 (the very first JASDF EJ) were also used for the sampling of the in-game representation of this jet as the developers and DMM announced for a trip to Gifu before their ultimate decommission.[2] |
Media
- Skins
Market
Market
Market
See also
- Related development
- Aircraft of comparable role, configuration and era
- Mikoyan-Gurevich MiG-21 (Family)
- SAAB J35D Draken
- Dassault Mirage IIIC
External links
| Japan jet aircraft | |
|---|---|
| IJNAS | |
| Experimental | Kikka |
| Reconnaissance | R2Y2 Kai V1 · R2Y2 Kai V2 · R2Y2 Kai V3 |
| IJAAS | |
| Fighters | Ki-200 |
| JASDF | |
| Fighters | F-86F-30 ▅ · F-86F-40 ▅ · F-86F-40 JASDF▅ |
| F-104J | |
| F-4EJ Phantom II · F-4EJ ADTW · F-4EJ Kai Phantom II | |
| F-15J · F-15J(M) | |
| F-16AJ | |
| F-1 | |
| Trainers | T-2 Early · T-2 |
| Foreign | |
| Thailand | ▄AV-8S · ▄F-5E FCU |
