Gulfstream G450

The Gulfstream 400 was a central figure in the large-cabin private jet lineup since its introduction to the market, and the Gulfstream 450 lives up to its standards. It can fly eight passengers and three crew members from Tokyo to Seattle at a speed of .80 Mach. Everything from its engines to its flight control systems are high-performing and reliable.
Between fourteen and eighteen passengers should ride comfortably in the Gulfstream 450’s 1,513 cubic foot cabin. Passengers can stand up in the 6.2 foot high cabin and will enjoy the 7.4 foot width and 45.1 foot length (an 18 inch increase from the G-III). The 169 cubic feet of baggage space is accessible in-flight. Two full-length closets for coat storage are located inside the two fully enclosed lavatories.

There are plenty of cabin features that should make transcontinental and transoceanic flights enjoyable. Standard and optional electronic offerings include a CD, VHS, and DVD player, two LCD screens, individual headphones at each seat for the cabin audio system, a fax machine, and satellite phones. In case those features aren’t enough, a full-sized galley, power plugs, work tables, and a LAN connection are included as well. Electronics, lighting, and the two-zone temperature control system can be controlled from several different locations in the cabin.
The Gulfstream 450’s Rolls-Royce Tay Mk 611-8C engines are built around the high-pressure engine core of the Spey RB.183-555, which has successfully documented thousands of hours of flight time in various other commercial and private jets. The Rolls-Royce Tay engine, however, gets 2,600 pounds more thrust on takeoff than the Spey. The Tay engines produce 13,850 pounds of thrust each, allowing a sea level takeoff in 5,450 feet.

Much of the Gulfstream 450’s speed and range capabilities can be attributed to some small improvements to the structure. A new wing design cut down on drag and allowed for an increased fuel capacity, totaling 29,500 pounds. Overall weight was reduced by about 500 pounds due to the use of Kevlar and graphite-epoxy composites in some parts of the cabin and engine nacelles.

The fully integrated cockpit is taken up entirely by four Cathode Ray Tubes (CRT) that display all flight, systems, and navigation information. The full-color CRTs replace the mass of electromechanical instruments and displays that usually take up the control panel. Color radar, dual Flight Management Systems (FMS), navigation computers, and Engine Instrument and Crew Alert Systems (EICAS) are provided by Sperry Flight Systems. The new Enhanced Vision System (EVS) can create an infrared image of the view from the cockpit and displays it on the Head-Up Display (HUD) of the pilot. This image is accurate enough to show details like lights and reflective strips on the runway, enabling the pilot to fly and even land in low-visibility conditions.

Global Express

The Global Express was the pioneer of ultra-long-range private jets. At the time of its release, no other private jet had a cabin nearly as large, nor could any jet make such long-range direct flights, like New York to Tokyo or Paris to Singapore. The Global Express offers everything an airliner does – range, comfort, and speed –- without the hassle.

The cabin of the Global Express is designed to be comfortable for the duration of long transoceanic flights. The cabin can be configured to hold between thirteen and nineteen passengers in a cabin that is 6.3 feet high, 8.2 feet wide, and 48.4 feet long. The cabin can be divided into three areas for conferences for increased privacy. Two fully-enclosed lavatories are in the cabin, one of which can be equipped with a shower, if desired. Extensive cabin insulation cuts down on noise and improved engines produce less audible vibration. There is a wide range of standard and optional cabin amenities, including a 17 channel satcom, fax machine, cabin entertainment system with VHS, DVD, and CD players, as well as individual video screens, and a full-sized galley.

The engines themselves are BMW/Rolls-Royce BR710A2-20 turbofans, which produce 14,750 pounds of thrust each on takeoff. The Global Express can climb to 37,000 feet in nineteen minutes. Its maximum certified flight ceiling is 51,000 feet, but it generally cruises around 42,000 feet –well above most commercial and private jets. For long-distance flights the Global Express can reach speeds of 488 knots, and reach 499 knots when cruising at high speed. Fortunately, one of the strengths of the Global Express is its ability to fly at high speeds without sacrificing range. Its maximum range is 7,000 miles (6,100 nautical miles) at a speed of .85 Mach.

The avionics and flight control systems were designed to be intuitive and easy to operate. Many systems require almost no input from the pilots. The cabin pressurization system, for example, automatically adjusts the cabin pressure throughout the flight. All that the pilot has to do is enter the altitude of the runway of the initial and final destinations. The cabin is rated to 10 psi, meaning it can maintain a sea level cabin while at an altitude of 26,500 feet. Engine startup is very simple as well, as is the fuel balance system, which automatically adjusts the fuel levels in the two wet wing tanks. Besides being easy to fly, the Global Express is very reliable. Most of its critical systems has two or three backup systems.

The avionics system used in the Global Express is the Honeywell Primus 2000XP suite. It has six 7 x 8 inch screens. Some screen display flight and environment information, while others are blank (to minimize distractions) except when notifying the pilots of an emergency. The avionics system comes standard with a triple LASEREF IV inertial reference system, a GPS receiver, avionics computers, nav/comm radios, and can be configured to include almost any piece of avionics equipment desired.