Well, if be truthful, UPEO (Universal Peace Enforcement Organization) never used FFR-31 Sylphid
This is a combination of "Ace Combat 3" game and "Yukikaze" anime. (I love its both) =^_^=
Model number: FFR-31
Code name: Sylphid
Unit type: multi-role fighter aircraft.
Manufacturer: Fairy Air Force (FAF)
Operator: Fairy Air Force.
First deployment: 2031
Total length: 18.80 meters
Wingspan: 13.77 meters
Total height: 5.01 meters
Weight: standard takeoff weight 11, 876 kilograms; maximum takeoff weight 35, 660 kilograms.
Powerplant type: FNX-5010-H/J Phoenix Mk X turbofan x 2
Powerplant output: 9, 677 kilograms; afterburner 12, 644 kilograms.
Speed: cruise: Mach 1.4 (altitude 14, 400 meters); maximum speed Mach 2.7 (altitude 14, 400 meters); fuselage load limit 9 G +
Maximum altitude: 18, 000 meters
Armament: 20 mm vulcan gun x 1; internal hardpoint x 7; external hardpoint x 2 (usually for drop-tanks)
Note:The primary fighter plane of the FAF and also the base design for the Super Sylph. A single-seater, it's less expensive to produce than the Super Sylph. Depending on the pilot, it can even defeat the Super Sylph in a dogfight, but it's getting less effective against the continuously improving JAM.