Gulfstream are known for producing some of the fastest, most luxurious and expensive business jets. The Gulfstream G600 and Gulfstream G650 are no exception.
The Gulfstream G600 and Gulfstream G650 represent some of the fastest, furthest flying business jets currently on the market.
The G600 is powered by two Pratt & Whitney PW815GA engines, with each engine producing up to 15,680 lbs of thrust. Therefore, the total combined thrust output is 31,360 lbs.
The G650, on the other hand, is powered by two Rolls-Royce BR725 engines. Each engine is capable of producing up to 16,900 lbs, resulting in a total thrust output of 33,800 lbs.
Both the G600 and G650 are capable of cruising at up to 51,000 feet. Furthermore, both aircraft are able to cruise at a maximum speed of 516 knots.
This translates to a maximum cruise speed of Mach 0.90. For reference, the speed of sound is Mach 1. Therefore, both aircraft are able to fly close to the speed of sound.
As a result, the Gulfstream G600 and G650 are among the fastest business jets ever produced.
However, an area where these aircraft do differ is fuel burn. The G600 has an estimated hourly fuel burn of 458 Gallons per Hour (GPH). Whereas the estimated hourly fuel burn of the Gulfstream G650 comes to 500 Gallons per Hour (GPH).
With the exception of the Gulfstream G550, the range figures of the Gulfstream aircraft lineup are arranged in a linear fashion.
The smallest aircraft, the G280, has a range of 3,600 nautical miles. Then, with every Gulfstream up the lineup the range increases, resulting the the G650ER and G700 being able to fly the furtherst.
Therefore, the G600 and G650 fit right in the middle of the Gulfstream aircraft range figures.
As expected, the Gulfstream G600 is unable to fly as far as the G650. The G600 has a maximum range of 6,600 nautical miles. Whereas the Gulfstream G650 has a maximum range of 7,000 nautical miles.
As a result, the Gulfstream G600 is able to fly non-stop from New York to South America, Europe, most of Africa and large amounts of Asia.
The G650 is able to take this a step further and increase the number of destinations to all of Africa and more of Asia.
Both range figures are extremely impressive. Visualize these range figures using this map.
When it comes to ground performance the figures are closer than you might expect.
The G600 has a minimum take off distance of 5,700 feet, compared with a minimum take off distance of 5,858 feet for the G650.
Minimum landing distance is a similar story. The G600 has a minimum landing distance of 3,100 feet while the G650 requires at least 3,182 feet.
Considering the difference in size and range capabilities of these aircraft, these are extremely impressive figures.
The Gulfstream G650 is marginally bigger than the G600 when it comes to cabin dimensions. The G650 has a longer, wider and taller cabin. Albeit only just.
The Gulfstream G650’s cabin measures 16.33 meters long, 2.49 meters wide and 1.91 meters tall.
In comparison, the Gulfstream G600’s cabin measures 15.62 meters long, 2.31 meters wide and 1.88 meters.
Therefore, the G650’s cabin is slight larger than the G600. However, both aircraft can accommodate up to 19 passengers. Although it is highly unlikely that either of these aircraft will ever fly with 19 passengers onboard, let alone be configured to carry 19 passengers.
However, if you are planning on flying with a large group of passengers, the G650 will provide slightly more space.
Furthermore, the Gulfstream G650 has more space for baggage with a baggage capacity of 195 cubic feet. In comparison, the G600 has a baggage capacity of 175 cubic feet.
Given that these aircraft are both made by the same manufacturer, the interiors are extremely similar. Of course, this is a good thing. Gulfstream makes some of the best private jet interiors in the world.
However, an area where these two aircraft do differ is cabin altitude. Cabin altitude is essentially the level of oxygen within the cabin and is measured in terms of altitude above mean sea level. A lower cabin altitude will result in a more pleasant cabin environment and reduce the effects of jet lag. Therefore, the lower the cabin altitude, the better.
When both of these aircraft are cruising at 51,000 feet the Gulfstream G600 will have a cabin altitude of 4,850 feet. In comparison, when cruising at the same altitude, the Gulfstream G650 will have a cabin altitude of 4,100 feet.
This is, by far, the lowest cabin altitude figure in the industry. And, keep in mind, this is when cruising at 51,000 feet. Therefore, when cruising lower, the cabin altitude will be even lower than 4,100 feet.
The G600 interior is designed for passengers to relax, work and dine in. The G600 has been designed by Gulfstream to “be the quietest [cabin] in business aviation”. This is hardly surprising as the whole Gulfstream family of aircraft has exceptionally quiet cabins. Additionally, the G600 features Gulfstream’s classic 100% fresh air system. Combine this with the low cabin altitude will ensure that you arrive at your destination refreshed.
Furthermore, Gulfstream has been able to fit in fourteen signature Gulfstream oval windows. These windows are “the largest in business aviation” and drown the interior in natural light. The size and placement of the windows also offer all passengers a fantastic view of the world below.
Onboard passengers will be sitting on award-winning seats. These seats blend style, functionality, and comfort all into one. Gulfstream has been able to utilize customer feedback and optimize the proportions of the seat for an ideal fit. Through using precise, computerized machining, Gulfstream has been able to eliminate pressure points for maximum comfort.
The G600 can be configured with up to four living areas. Within the four living areas there is space for up to 19 passengers and space for up to 10 passengers to sleep.
The G600 is so luxuriously appointed that it has even been awarded the International Yacht & Aviation Design Award.
Gulfstream G600 Interior
Gulfstream G650 Interior
The G650 boasts a spacious interior – described as “a refined getaway above the clouds”. The cabin can have up to four living areas, enough to work, dine, entertain and relax.
With one of the quietest cabins in business aviation, the G650 is the perfect place to relax. The G650 has a cabin noise level of just 47 decibels. A cabin altitude of 4,100 feet is the lowest in business aviation.
These two factors combine guarantee that the G650 is supremely comfortable. Additionally, low cabin noise, low cabin altitude and 100% fresh air ensure that you will arrive at your destination with minimal jet lag.
With 16 of the trademark Gulfstream large, oval windows provide the cabin with an abundance of natural light.
Providing both comfort and productivity, Gulfstream’s handcrafted seats allow you to settle in and enjoy the journey. Each seat is positioned next to a window.
When circumnavigating the globe, as expected, the G650 is able to provide fully flat beds for the passengers. All single seats and divan convert to beds, providing you with a good nights sleep.
Flying on the G650 entitles you to the top-of-the-range cabin amenities. Expect WiFi connectivity, a 42-inch flatscreen TV, video monitors, extensive galley facilities.
The Gulfstream G600 is slightly less expensive to charter than the G650. However, please note that there are many factors that influence the hourly price of a private jet charter.
Having said that, it is possible to get some estimated hourly prices.
The estimated hourly charter price of the Gulfstream G600 is $10,000. In comparison, the Gulfstream G650 has an estimated hourly charter price of $10,500.
Additionally, given that deliveries of the G600 only started in 2019, finding one to charter is tricky. However, in the United States, the operator that currently holds two G600’s is Solairus Aviation.
And finally, purchase price.
The Gulfstream G600 has a new list price of $54.5 million. Whereas the new list price of a Gulfstream G650 is $65 million.
Unfortunately, due to the newness of the G600, we are yet to have data on the pre-owned value of the aircraft. Therefore, we are unable to compare the depreciation of these aircraft.
Gulfstream have provided, as always, two excellent aircraft.
Both aircraft are able to cross oceans and continents with ease.
However, which of these aircraft is better?
Ultimately it comes down to range. How far do you need to go.
Gulfstream have been able to arrange these aircraft in their lineup very well. If the G600 can’t get you far enough then simply upgrade to the G650.
The interiors of both aircraft are extremely similar, albeit with the G650 having some minor improvements.
However, both aircraft can fly just as fast and operate out of similar airports. Therefore, the ultimate decision comes down to range.