Boeing F-15SE Silent Eagle

The advanced strike fighter concept built to blend stealth with proven performance.

Overview

Boeing United States ICAO: F15 2010–Onward Active $100 million (2010)

The Boeing F-15SE Silent Eagle was proposed in the late 2000s as a stealth-enhanced development of the F-15E Strike Eagle. Designed primarily for export customers, it aimed to reduce radar signature while retaining the F-15’s payload and range advantages. The concept reflected efforts to extend the life of the Eagle platform in a changing threat environment.

Live Fleet Activity (F15)

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Specifications

Units
Engine
2 × Pratt & Whitney F100-229
Engine type
Turbofan
Thrust
2 × 29,000 lbf · 129 kN
Avionics
Ratheon APG 82 , Elbit Systems , BAE Systems DEWS
Wing tips
No winglets
Seats
2
Crew
—
Cabin width
—
Cabin height
—
Cabin length
—
Exterior length
63 ft 8 in  ·  19.40 m
Tail height
18 ft 6 in  ·  5.63 m
Fuselage diameter
—
Wing span
42 ft 10 in  ·  13.05 m
Baggage volume
—
Gross weight
—
Empty weight
—
Max takeoff weight
81,000 lb  ·  36,700 kg
Max landing weight
—
Max payload
29,000 lb  ·  13,200 kg
Fuel capacity
1,960 gal · 7,400 L · 5,900 kg (Jet A)
Max cruise speed
1,434 kt  ·  1,650 mph  ·  2,656 km/h
Maximum speed
—
Cruise speed
—
Approach speed
—
Range
2,100 nm  ·  2,420 mi  ·  3,890 km
Fuel burn
1.07 nm/gal  ·  0.52 km/L
Ceiling
60,000 ft  ·  18,300 m
Rate of climb
50,000 ft/min  ·  254 m/s
Takeoff distance
300 ft  ·  90 m
Landing distance
500 ft  ·  150 m
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Operational Context

Boeing F-15SE Silent Eagle — stealth-enhanced multirole fighter concept

The Silent Eagle was unveiled in 2009 as an evolution of the F-15E, which first flew in 1986 and entered service in 1989. Boeing incorporated conformal weapon bays in place of traditional conformal fuel tanks, along with radar-absorbent materials and canted vertical stabilizers. The goal was to improve survivability without sacrificing performance.

Two Pratt & Whitney F100 or General Electric F110 turbofan engines producing approximately 29,000 pounds of thrust (129 kN) each with afterburner would have powered the aircraft. Maximum speed would have remained above Mach 2. Maximum takeoff weight would have exceeded 81,000 pounds (36,741 kg), preserving the Strike Eagle’s heavy payload capability.

No production orders were secured, and the Silent Eagle remained a proposal. Nonetheless, the concept demonstrated how legacy airframes could be adapted with reduced-observable features. The program underscored ongoing demand for advanced multirole fighters outside the fifth-generation category.