Gulfstream G400

Business Jet

United States | 2025

"Introduced in October of 2021, the Gulfstream G400 targets the large-cabin, long-range bizjet market."

Authored By: Staff Writer | Last Edited: 10/05/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Image from official Gulfstream Aerospace marketing materials.

The Model G400 is one of the latest entries into the proven Gulfstream business jet lineup. The aircraft's design is centered on the large-cabin "bizjet" market and built around the qualities of performance and efficiency without sacrifice. The type was unveiled in October of 2021 by the Savannah, Georgia-based company alongside its larger cousin, the G800 detailed elsewhere on this site.

Externally, the G400 continues to rely on the proven physical aspects seen in other Gulfstream offerings; the fuselage is tubular and well-streamlined for high-speed flight while the wing mainplanes are fitted low to the sides of the fuselage at midships and swept-back for high-speed efficiency. Furthermore, each member is capped by a fuel-saving winglet contoured elegantly into the design. The cockpit seats two side-by-side ahead of a sharp nosecone assembly. The engines were placed at the rear of the design to reduce internal noise and mounted outboard of short wing stubs. The tail unit encompasses a "T-style" plane arrangement in which a single vertical fin supports the horizontal planes at the very top edge of the fin. Ground-running is accomplished by way of a traditional wheeled, retractable tricycle undercarriage.

Internally, the aircraft will feature cabin/living spaces set across three distinct zones in a single-aisle arrangement: seating for up to eleven with sleeping for up to four, a complete lavatory, and complete kitchen. Ten cabin windows will provide unparalleled views for passengers while an air purification system will recycle the cabin air every two minutes.

The cockpit is given three large, full-color touchscreens showcasing all pertinent operating information across an all-modern, digitally-driven instrument panel to ease crew workload and enhance situational awareness in all phases of flight. The throttle quadrant is at a shared center console located between the two crewman, each pilot given F-16-style side-mounted flight sticks. The avionics set is the Symmetry Flight Deck featuring the Phase-of-Flight intelligence system and the Predictive Landing Performance System, the latter coming into play during approaches.

As designed, the G400 has a listed maximum range out to 4,835 miles (4,200 nautical miles and can reach near-supersonic speeds of 0.90 (long range cruising set to about Mach 0.85). Marketing materials detail direct, non-stop flights from Sao Paulo, Brazil to Miami, Florida, or Los Angeles, California to Moscow, Russia, beating out competing products in the same class. The bizjet will fly to altitudes of 51,000 feet.

Power is set to come from a pair of Pratt & Whitney PW812GA non-afterburning turbofan engines designed around noise reduction, fuel savings, and low emissions output. Thrust output is 13,500lb.

Structurally, the aircraft will sport a Maximum Take-Off Weight (MTOW) of 70,000lb with a maximum payload rating of 4,050lb. Total length is 86.2 feet with a height of 25.3 feet and wingspan of 86.3 feet.

Content ©MilitaryFactory.com; No Reproduction Permitted.

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Gulfstream G400 Business Jet.

2 x Pratt & Whitney PW812GA non-afterburning turbofan engines developing 13,500lb of thrust each.
Propulsion

690 mph
1,110 kph | 599 kts
Max Speed

652 mph
1,050 kph | 567 kts
Cruise Speed

51,001 ft
15,545 m | 10 miles
Service Ceiling

4,833 miles
7,778 km | 4,200 nm
Operational Range

City-to-City Ranges
Operational range when compared to distances between major cities (in KM).

NYC

LON

PAR

BER

MOS

TOK

SYD

LAX

NYC

Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Gulfstream G400 Business Jet.

2
(MANNED)
Crew

86.2 ft
26.27 m
O/A Length

86.3 ft
(26.30 m)
O/A Width

25.3 ft
(7.70 m)
O/A Height

69,997 lb
(31,750 kg)
Empty Weight

Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.

RANGE

ALT

SPEED

Variants
Notable series variants as part of the Gulfstream G400 family line.

Operators
Global customers who have evaluated and/or operated the Gulfstream G400. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units
Contractor(s): Gulfstream Aerospace - USA

[ United States (probable) ]

Relative Max Speed

Hi: 750mph

Lo: 375mph

Aircraft Max Listed Speed (690mph).

Graph Average of 563 MPH.

Era Crossover

Showcasing Aircraft Era Crossover (if any)

Max Alt Visualization

Production Comparison

1

36183

44000

Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.

MACH Regime (Sonic)

Sub

Trans

Super

Hyper

HiHyper

ReEntry

♦

Aviation Timeline

EarlyYrs

WWI

Interwar

WWII

ColdWar

Postwar

Modern

Future

♦

1 / 1

Image from official Gulfstream Aerospace marketing materials.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.

COMMERCIAL AVIATION

BIZJET

VIP SERVICE

Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.

Military lapel ribbon representing modern aircraft

Going Further...
The Gulfstream G400 Business Jet appears in the following collections:

HOME

AVIATION INDEX

AIRCRAFT BY COUNTRY

AIRCRAFT MANUFACTURERS

Disclaimer | Privacy Policy | Cookies

2025 Military Pay Scale Military Ranks U.S. DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols US 5-Star Generals WW2 Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes Global Firepower, WDMMA.org, WDMMW.org, and World War Next.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)