The F-4EJ Kai is an Air Self-Defense Force fighter developed from the F-4EJ Phantom II.
It was decided to adopt the F-4EJ as a successor to the F-86F in 1960, and
deployment began in 1961.As more than 20 years have passed since its introduction, the F-4EJ was adopted in 1978
in order to extend the life of the aircraft and improve its capabilities. We have been conducting research and development since .
As a result, in February 1981, a modification plan was announced as the F-4EJ Kai.
This modification mainly involves improving combat capabilities and adopting the ASIP inspection method, which is a measure to extend the lifespan of the aircraft.
To improve combat capabilities, we first installed the AN /APG-66J fire control radar
, which is a modification of the Westinghouse AN/APG-66 used in the F-16 for the F-4EJ . This radar was adopted in response to
the MIG-25's forced landing in Hakodate , and is a small pulse Doppler radar that is suitable for searching for aircraft flying at low altitudes over the sea.
Along with this, the on-board computer was changed from the previous analog type to a digital type computer.
This enabled the integration of weapons systems and
the use of the domestically produced ASM-1 anti-ship missile.
Navigation equipment has also been changed from analog to digital.
Navigation accuracy has been significantly improved by digitizing the inertial navigation device, and it
also has a target mark function that allows you to mark up to three target points.
In addition, as a means of defending your aircraft, the radar warning system has been modified to improve its capabilities, and
detailed data will be displayed on the CRT screen in the cockpit.
Additionally, in order to simplify the pilot's operating procedures, the HOTAS concept has been adopted,
allowing various operations to be performed while keeping hands on the control stick and throttle lever .
Along with these modifications, a
new head-up display has been installed to display the processed data,
allowing the pilot to read the data while facing straight ahead.
The F-4EJ Kai adopted the ASIP aircraft management system as a measure to extend the life of the aircraft.
This
is a computer-based system that manages the flight performance data of each aircraft and allows the fatigue level of each aircraft to be managed individually.
This ASIP method can extend the life of each aircraft by approximately 2,000 hours.
The F-4EJ Kai's main mission is interception combat, but
its ground attack capabilities are also much improved compared to the F-4EJ.As
the support fighter F-1 will be retired in the future,
the F-4EJ Kai's 1. A separate squadron will be assigned to support combat missions.
(Information at the time of kit release)
[Data]
Crew: 2 people
Overall width: 11.77m
Overall length: 19.2m
Overall height: 5.02m
Maximum takeoff weight: 28,030kg
Engine: General Electric, Ishikawajima Harima Heavy Industries J79-GE/IHI-17×2
Thrust: 5,380kg (A/ 8,120kg when using B)
Maximum speed: Mach 2.2/11,000m
Fixed armament: M61A1 20mm Vulcan gun
First flight: 1984.7.17 (F-4EJ modified trial aircraft)
Decal (marking)
- 83rd Air Corps 302nd Squadron Affiliated Machine "414" (Naha Base)
- 6th Air Wing 306th Squadron Affiliated Machine “416” (Komatsu Base)
- 5th Air Wing 301st Squadron Affiliated Machine "417" (Nyutabaru Base)
