Gulfstream Iv Aircraft - The Gulfstream IV is a twin-turbofan T-tail low-wing aircraft in service with the United States Department of Commerce.
The Gulfstream IV (or G-IV or GIV) and its derivatives are a family of twin jet aircraft primarily for private or commercial use. The aircraft was designed and manufactured by Gulfstream Aerospace, a General Dynamics company headquartered in Savannah, Georgia, USA, from 1985 to 2018. The aircraft is powered by two Rolls-Royce RB.183 Tay turbofans.
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More than 900 GIV/GIV-SP/G450 units were produced after the last G450 was delivered. The last G450 was delivered on January 19, 2018, after 365 deliveries over 12 years, to be replaced by the G500.
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Gulfstream, in partnership with Grumman, began work on the Gulfstream IV in March 1983 as a restyled, long-body variant of the Gulfstream III. The first GIV made its maiden flight on September 19, 1985.
The G-IV entered service in 1987 with serial number 1000 and in 1993 was upgraded to the GIV-SP special edition with serial number 1214. Later it was renamed to G400 with serial number 1500.
In 2001, Gulfstream began work on an improved version of the GIV-SP, originally called the GIV-X. Then the G450 was attacked. The G450 is 1 foot (0.305 m) taller than the G400 and shares the G550's front fascia and larger cabin. Production of the G450 began in October 2004, replacing the G400. The G450 performs better and features a PlaneView cockpit with four 14-inch (355 mm) liquid crystal displays and a head-up display (HUD). A shorter G350 version of the G450 was developed and approved in 2004.
As of 2018, 1992-1990 GIVs from $1.6-4.4 million, 1992-1999 GIVSPs from $1.25-5.2 million, 15-year G300s and 4-year G400s, for $5-7 million, and 2016 GIVSPs for $5-7 million The dollar was sold. $9.95 -23.75 million
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Compared to the Gulfstream III, the decision to redesign the wing structure to reduce weight opened up the opportunity to redesign the wing aerodynamically to reduce drag and increase range. Wing contour modifications were to be limited to the forward 65% of the wing spar so that the control surfaces did not need to be redesigned. Modifying the inner wing requires redesigning the fuselage base structure, so this area of the wing is unchanged. The outer wing changes were made with the aim of reducing the peak subcritical pressure coefficient and moving it backwards to reduce the impact force and increase the impact sweep.
The 12,420 lb Thai Rolls-Royce fanjet engines provided more thrust than the 11,400 lb Gulfstream III engines. Speed, noise level, emissions, fuel consumption, range and load capacity have also improved significantly compared to the previous model.
The Gulfstream IV wing has a weaker external shock, resulting in less drag. Other advantages of this design include: less root clamp anchor due to higher internal pressure coefficient, lower stall speed due to flushing, and higher fuel volume due to increased beam. These aerodynamic improvements result in a range increase of more than 300 nautical miles.
In addition to the wing redesign, the Gulfstream IV was also the first commercial jet to feature a glass cockpit.
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The G400 has a spacious cabin, a long range of 4,350 nautical miles (8,060 km) and the same comfort and design as the G Series. Maximum altitude and cruise speed is 45,000 feet and Mach 0.85. Previous models had Honeywell's SPZ 8000 Avionics package. The SPZ 8400 avionics package was an option and became standard on later models. In 2009, the used price was less than $15 million.
The National Oceanic and Atmospheric Administration (NOAA) operates a modified GIV-SP (N49RF) to fly scientists and crew members around tropical cyclones at 45,000 feet. The plane was modified to drop instruments called "dropsondes" to measure wind speed, air pressure, humidity and temperature as it hit the ocean surface. By sampling the storm with these fall probes along a 4,000-mile path around the storm, forecasters at NOAA's National Hurricane Center and Hurricane Research Division can better predict where the storm will be "steered" by upper-level winds. . They also predict wind shear that increases or decreases storm strength. The GIV-SP is suitable for this task because it is fast and can fly long distances with enough cabin space for crew and instruments.
In 2009, the NOAA GIV-SP was modified by adding a side-scan Doppler radar to the rear hull. This radar is used to profile storm clouds.
In June 1987, Gulfstream IV circumnavigated the globe in 45 hours and 25 minutes, setting 22 world records in its class. The following year, another GIV flew east around the world, setting 11 world records.
Gulfstream Iv Sp
In 1990, Gulfstream CEO Al Paulson and the Gulfstream flight crew set 35 international records for flying around the world in a GIV.
It can be configured for cargo operations, 26 passenger operations, or a combination of the two. With the passenger seats removed, three unmanned pallets or two pallets can be configured as eight-passenger or one four-passenger pallet. This full-seat aircraft can accommodate up to twenty-six passengers and four crew members. A hydraulic cargo door is installed on the right side of the aircraft and a ball cargo floor can receive palletized cargo. The C-20G is operated by Fleet Logistics Support Squadron Four Eight (VR-48) at Naval Air Station Andrews Air Force Base, Maryland and VMR Detachment Kaneohe Bay, Naval Air Station, Hawaii Naval Air Station.
The C-20H is a GIV-SP model operated by the United States Air Force in the command/executive transport role. The C-20J is a GIV-SP model operated by the US Army in the command/executive transport role.
The G450 (GIV-X) is 12 inches (30 cm) longer and the main door has been moved aft, with updated engines, flight deck and systems.
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The G450, like the G350 with reduced fuel capacity, is a GIV-X model designation approved by the FAA on August 12, 2004. Compared to the Gulfstream IV, the hull is 12 inches longer and the main door has been moved aft. The Rolls-Royce Tay 611 engines were replaced by 611-8C engines with FADECs, redesigned thrust reversers, nacelles and masts, which increased range and payload with aerodynamic improvements. Many of the Gulfstream V-SP's advancements are used: Honeywell's advanced flight deck imaging suite, power generation, cabin temperature and pressure controls, nose and nose landing gear. It also has an improved APU and flap/blade actuation system, redesigned main landing gear wheels and brakes, flight control system overrun protection.
By the end of the G450's production run, 365 aircraft were produced with prices ranging from $15 to $32 million.
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