Credit
Masteruploader · Public domain · Resized · Public domain · Source ↗ · Modified
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At a glance
Measured figures
E-4B · Length
Single source231 ft 4 in (70.51 m)[source]
SR20-G3 · Length
Single sourceConfiguration
| Specification | Boeing E-4 | Cirrus SR20 |
|---|---|---|
| Role | Airborne strategic command and control post[source] | — |
| National origin | United States[source] | United States[source] |
| Manufacturer | Boeing[source] | Cirrus Aircraft[source] |
| Status | In service[source] | — |
| Primary user | United States Air Force[source] |
26 ft 0 in (7.92 m)[source]
Empty; E-4B · Empty weight
Single sourceGross; E-4B · Gross weight
Single sourceMaximum take-off; E-4B · Max takeoff weight
Single source410,000 lb (185,973 kg)[source]
800,000 lb (362,874 kg)[source]
833,000 lb (377,842 kg)[source]
Empty; SR20-G3 · Empty weight
Single sourceGross; SR20-G3 · Gross weight
Single sourceE-4B · Range
Single source6,200 nmi (7,100 mi, 11,500 km)[source]
SR20-G3 · 1 × Continental IO-360-ES six cylinder, horizontally-opposed piston aircraft engine
Single source1 × Continental IO-360-ES six cylinder, horizontally-opposed piston aircraft engine , 200 hp (150 kW)[source]
E-4B · 4 × General Electric F103 turbofan engines thrust each
Single source4 × General Electric F103 turbofan engines, 52,500 lbf (234 kN) thrust each[source]
E-4B · Wing area
Single source5,500 sq ft (510 m 2 )[source]
SR20-G3 · 828 ft/min (
Single source828 ft/min (4.21 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Number built | 2,084 (through 2025)[source] |
|---|
| Introduction date | 1974[source] | — |
|---|
| First flight | 13 June 1973[source] | 21 March 1995[source] |
|---|
| Developed from | Boeing 747-200[source] | — |
|---|
| Successors | SNC E-4C Survivable Airborne Operations Center[source] | — |
|---|
| Capacity | up to 108 mission crew[source] | 3 passengers (4 using 60/40 flex seating in post-2012 models)[source] |
|---|
| Endurance | 150+ hours (with refueling)[source] | — |
|---|
| Airfoil | root: BAC 463 to BAC 468; tip: BAC 469 to BAC 474[source] | — |
|---|
| Wing loading | 150 lb/sq ft (730 kg/m 2 )[source] | — |
|---|
| Thrust/weight | 0.26[source] | — |
|---|
| Type | — | Light aircraft[source] |
|---|
| Manufactured | — | 1999–present[source] |
|---|
| Developed into | — | Cirrus SR22[source] |
|---|
| Propellers | — | 3-bladed[source] |
|---|
| Stall speed | — | 56 kn (64 mph, 104 km/h) CAS[source] |
|---|