New Gulfstream Aircraft Type?

[monkey_wrench]

Just received the following:-

Live Webcast

On March 13th, 2008 Gulfstream will make a formal announcement of a new program at our facility in Savannah, Georgia. If you would like to view this announcement via a live webcast, please visit www.gulfstreamlive.com at 9:00 a.m. EDST on March 13th, 2008. We look forward to you joining us.

Sincerely,

Joe Lombardo
President
Gulfstream Aerospace

[spacecadet]

I am out here with my aircraft for maintenance and all us customers have been "invited to attend a special event"

We all know what it is but we don't know what it looks like yet. I must admit that it has been kept fairly secret, suprised it hasn't been on PPrune before!

Anybody else out here attending it tomorrow?

[727 exec]

...could it be the worst kept secret since Alistair Darling thought about putting up the tax on alcohol - the new, big Gulfstream rumoured to be the reason behind the recently built production area at KSAV (and also a rumour that one actually exists already somewhere in the secret squirrel hangars)...but will it be 650/675 or 750/775????????????????

PLEASE let it be the same type rating as the 550:D

[IAD787]

Here's a good rundown I put together on the new jet. Ask yourself this, can the windows on a Gulfstream jet be any bigger?

http://www.flightglobal.com/blogs/flightblogger/2008/03/the-ace-up-gulfstreams-sleeve-1.html

IAD787

[Aussie]

think theyll call the new type the 600?

[PicMas]

Is it me or is the countdown off by about 45mins??

[monkey_wrench]

The last time I saw a countdown like this was on the movie "Independence day"....

[DollComber]

PLEASE let it be the same type rating as the 550

I hope so.....
Only 1/2 hour left...

[DollComber]

G650:
7000nm at .85
5000nm at .90

No words....amazing!:D

[smallfry]

And the best news? It looks like the cockpit is very similar to the 550 so hopefully just a differences course?
:ok:

[Mad (Flt) Scientist]

MMo of 0.925 - wonder what Mdf will be - flight test @ 0.995??

[g4phil]

Follow the link:

http://www.mediamax.com/g650/Hosted/G650_Overview.pdf

[Aussie]

They say the fastest, I recall the Citation X having similar speeds, yeh??

[727 exec]

G650 will be something like 3.31 knots faster than the Citation X!!!!!!!!:cool:

I reckon it'll be a differences course looking at the specifications with the same uprated engines and uprated avionics...phew!!:D

[fl610]

I guess we can look forward to Bombardier's comeback to the G650 in about 2025. :}

[chornedsnorkack]

I guess we can look forward to Bombardier's comeback to the G650 in about 2025.

Meanwhile we can have a look at C110 business jet.

[FourGreenNoRed]

Acc. the official PDF the A/C even offers:

New, larger cabin widows

Cabin widow, what a name for a FA . . . :E

[spacecadet]

Gulfstream reckon a day differences course from a G550 & believe that they will have 30 orders!

Disappointed with launch today, the way the hangar was curtained it made you think that they were going to drop the curtains and there was the secret G650 rather than just the model. I suppose we will see one flying in 2 years!

Impressed with the cabin altitude of below 5,000ft at FL510!

Surprised that they think it wont affect the G550 market as there is a market for a G650 & then he finished the presentation by saying watch out, a G750 could be along shortly!

[Gulfstreamaviator]

Not a good presentation. 20 mins of background, and 3 mins of numbers.

Do like the 8 windows, makes exterior recognition easier.

G550 TR with differences is a big bonus.

Did I see a side stick, or is it "just" fly by wire, with conventional controls.

I suspect they were forced to have the presentation, due to leaks, and made the best of a bad job.

I have ordered two.

727 exec, have your missed the .92 on the CX. shame on you.

glf

[GULF69]

FROM THE WEBSITE:

SAVANNAH, Ga., March 13, 2008 – –Gulfstream Aerospace, a wholly owned subsidiary of General Dynamics (NYSE: GD), today announced the introduction of an all-new business jet: the Gulfstream G650. With its ultra-large cabin and ultra-long range, the G650 establishes a new price and performance point for business-jet aircraft.

The G650 offers the longest range, fastest speed, largest cabin and the most-advanced cockpit in the Gulfstream fleet. It is capable of traveling 7,000 nautical miles at 0.85 Mach or 5,000 nautical miles at 0.90 Mach. Using an advanced aerodynamic design, the G650 has a maximum operating speed of 0.925 Mach, which will make it the fastest civil aircraft flying. It can climb to a maximum altitude of 51,000 feet, allowing it to avoid airline-traffic congestion and adverse weather.

“This is an exciting time in Gulfstream’s history,” said Joe Lombardo, president, Gulfstream Aerospace. “For 50 years, our company has been on the forefront of business-jet aviation. I can think of no better way to celebrate our golden anniversary than to introduce the Gulfstream G650. Created with significant input from customers who participate in our Advanced Technology Customer Advisory Team, a subset of our Customer Advisory Board, the G650 offers the most advanced flight deck and the widest array of cabin comforts. Its performance and aesthetics are unprecedented.”

Gulfstream expects to begin G650 customer deliveries in 2012. Based on the aircraft
development schedule, the company projects it will receive Federal Aviation Administration (FAA) Type Certification and validation by the European Aviation Safety Authority (EASA) in 2011. First flight of the aircraft is scheduled for the second half of 2009.

Enhanced Cabin Environment
Comfort figures prominently into the G650. The unfinished aircraft cabin measures 102 inches wide and 77 inches high, making it the largest business-jet cabin. The extra space allows for a longer living area, more seat recline, expanded leg room and increased stateroom capabilities as well as larger galleys, lavatories, storage and crew rest areas. An 84-inch-wide floor provides for larger seats, wider aisles and the ability to seat three across.

The G650 provides the most comfortable and productive cabin environment. A cabin altitude of 4,850 feet at FL510 and 2,800 feet at FL410 reduces fatigue, increases mental alertness and enhances productivity, while a quieter cabin provides a more comfortable environment for conversation or relaxation. The aircraft’s advanced environmental control system features quieter air distribution and independently vented lavatories. The G650’s new 16 cabin windows, measuring 28 inches by 20.5 inches, are the largest in the industry, providing for even more natural light and visually expanding the aircraft’s already spacious interior.

Gulfstream’s Cabin Essential® design philosophy means all of the G650’s major cabin systems have been designed with redundancy so a single-point failure will not result in the loss of cabin functionality. That means a toilet always flushes; water is always available; and an entertainment source always works.

The PlaneView® Cockpit
The G650 features the most technologically advanced PlaneView® II cockpit with a number of enhancements including: four 14-inch, adaptive, liquid-crystal displays; three standard PlaneBook® computer tablets; a smaller pedestal; a standby multifunction controller that combines current display controller functionality with standby flight instruments; and a fully automatic, three-dimensional scanning weather radar with an integral terrain database for efficient ground-clutter elimination.

In addition, the G650 uses state-of-the-art vision systems to improve both pilot situational awareness and flight safety. These standard systems include the Gulfstream Enhanced Vision System (EVS II), the Synthetic Vision-Primary Flight Display (SV-PFD) system and Head-Up Display (HUD II). Gulfstream is the first Part 25 Original Equipment Manufacturer (OEM) to provide its customers with both enhanced and synthetic vision systems. Kollsman (EVS II), Honeywell (SV-PFD) and Rockwell Collins (HUD II) are major suppliers to Gulfstream on these three systems.

Working in concert, the EVS II and SV-PFD provide pilots with a superior view of the terrain, obstacles and approaches, regardless of the weather conditions outside the cockpit. EVS uses a forward-looking infrared (FLIR) camera to capture real-world images and project them on the pilot’s all-digital HUD II, while the SV-PFD uses three-dimensional, color terrain images that are derived from data stored in the Honeywell Enhanced Ground Proximity Warning System (EGPWS).

“The Gulfstream G650 uses state-of-the-art avionics to give operators a visual edge,” said Pres Henne, senior vice president, Programs, Engineering and Test, Gulfstream. “But the G650’s advances extend beyond the cockpit. Every element of this aircraft was designed with safety, reliability, comfort, productivity and performance in mind.”

Because the G650 flight deck has the same basic layout as the G550, the pilot type rating for the G650 is expected to be the same as the GV and the other in-production, large-cabin Gulfstream business jets, with minimal differences training.

Performance
The G650 is powered by the new Rolls-Royce BR725 engine, which produces 16,100 pounds of thrust at take-off. Manufactured by Rolls-Royce in Germany, the BR725 engine features a 50-inch swept fan with 24 blades for improved flow, increased efficiency, reduced noise and lower emissions. The G650 has fuel-burn levels comparable to those of smaller aircraft.

The BR725, in combination with the new, high-efficiency thrust-reverser system and an all-new aerodynamically optimized wing, means the G650 can meet the latest take-off certification requirements, has excellent “hot and high” performance and offers outstanding intercontinental range. For example, the G650 can travel the 6,370 nautical miles from Dubai to Chicago 88 minutes faster than existing long-range jets. It shaves 31 minutes off the 4,788-nautical-mile trip from Los Angeles to London and 50 minutes off the 5,932-mile trip from New York to Tokyo.

Reliable Systems
The G650 offers a full three-axis fly-by-wire system that delivers a number of benefits to the user, including flight-envelope protection, increased redundancy and reduced maintenance. The system is the result of extensive testing in Gulfstream’s Advanced Flight Controls program, where designers and engineers have been flight-testing advanced signaling and actuation on a GV aircraft. Those efforts led to a redundant fly-by-wire system that exceeds certification requirements. The system features a quadruple-redundant flight-control computer system for commanding all flight-control surfaces. In addition, the system has a separate and dedicated back-up flight-control computer that provides an additional level of safety.

The G650 also has reliable electrical systems that use proven components. Two 40 kVA Integrated Drive Generators, a 40 kVA APU Generator and one 15 kVA Ram Air Turbine provide superior electrical power capacity, no-break power transfer capability and added redundancy for safe, reliable operation.

The G650 fuel system stores 100 percent of the aircraft’s 44,200 pounds of fuel in the wings. The G650 retains the G550 heated fuel return system but adds a new Fuel Quantity Monitoring System (FQMS). This system uses a new distributed architecture with redundancy to maintain fuel-quantity indication in the event of any single sensor failure. Additionally, the electronically controlled refueling feature automatically adjusts to provide accurate refueling under varying fuel temperature conditions.

To ensure all systems remain at peak performance, the Gulfstream G650 uses Gulfstream’s PlaneConnect® program, a maintenance link that automatically transmits aircraft maintenance information to the customer’s operations department with an optional copy to Gulfstream Technical Operations. This data can then be analyzed to identify systems’ condition status. It also allows for exceptionally fast maintenance turnaround times.

With overall system reliability improvements and with 600 hours between major inspections, the G650 is projected to have unmatched availability and dispatch reliability.

Manufacturing
The G650 fuselage employs all-new structural design and manufacturing processes, including bonded skin panels, machined frames and precision assembly. These new methods not only improve aircraft quality, fit and finish, they also reduce assembly time and the need for an extensive parts supply. For example, the G650’s new window design is 16 percent larger but uses 78 percent fewer parts, thereby reducing assembly time 57 percent. This streamlined manufacturing cycle also consumes less energy.

The G650 will be produced in the recently completed 308,000-square-foot manufacturing facility at Gulfstream in Savannah.

In summary, Gulfstream’s all-new flagship jet, the G650, is a new, one-of-a-kind, high-
tech, state-of-the-art airborne office that features an unmatched combination of characteristics: the largest and quietest cabin, the longest range and fastest speed and the most technologically advanced aircraft systems.

“It’s thrilling to see how far we’ve come since that day 50 years ago when the first Gulfstream I prototype took to the skies. We were the first then and we’re still the first now. And with the help of our customers, the support of our communities and the ingenuity of our employees, we’ll continue to make aviation history with cutting-edge advances that revolutionize the business-jet industry,” said Lombardo.

[Whale Rider]

No Side sticks! The yoke lives on! Awesome!:ok:

[chornedsnorkack]

A cabin altitude of 4,850 feet at FL510 and 2,800 feet at FL410 reduces fatigue, increases mental alertness and enhances productivity, while a quieter cabin provides a more comfortable environment for conversation or relaxation.

By your computation/guess, to what FL can G650 maintain zero cabin altitude?

[nomorecatering]

Will it have the traditional Gulfstream with with Single slotted flaps and no leading edge devices?

[aerodog]

A 2,800 ft cabin @ FL 410 translates to 10.67 psi differential.

10.67 psi will keep the cabin below sea level @ FL 310.

Aluminum fuselage - Smart move Gulfstream.

[monkey_wrench]

nomorecatering:-

I should imagine that Gulfstream will try very hard to stick with the "simple" wing design i.e. without the use of moveable leading edge devices. In their sales campaigns, they have always maintained the "simple versus complex" is best approach. This aspect of the Bombardier product, which Gulfstream assert has a more mechanically complex wing system, is regarded by them as a poor selling point from the maintenance cost aspect of the operation of the aircraft. I leave it to you to judge what is best from a landing performance / approach speed perspective.

[Mad (Flt) Scientist]

Will it have the traditional Gulfstream with with Single slotted flaps and no leading edge devices?

I should imagine that Gulfstream will try very hard to stick with the "simple" wing design i.e. without the use of moveable leading edge devices. In their sales campaigns, they have always maintained the "simple versus complex" is best approach. This aspect of the Bombardier product, which Gulfstream assert has a more mechanically complex wing system, is regarded by them as a poor selling point from the maintenance cost aspect of the operation of the aircraft. I leave it to you to judge what is best from a landing performance / approach speed perspective.

All you need is a big enough wing ... which given they need somewhere to store a LOT of fuel, might not be a serious design compromise.

They're quoting 3000ft "landing distance" at MLW (83,500lbs). The brochure states (p19) that the wing has a fixed LE but doesn't detail the flap design. Incidentally, the brochure is also marked "Demo version - not for public release". It's been that way since the announcement - surprised they haven't fixed that yet. :E

Now, if I check the landing distance for the GEX, at about 83000lbs I get an actual landing distance (unfactored) of 2800ft. I'm going to assume that G650 number is also unfactored (otherwise, wow) so assuming comparable braking (which I think is fair, there's only so much friction to be had) implies that the G650 will be landing a little faster than a GEX does at the same weight. It's less than 10% in distance, so likely less than 5% in speed.

The GEX wing is slatted of course, so the G650 is going to have less CLmax naturally at comparable flap angles, so either they have to go for a bigger flap angle than the GEX (and similar flap complexity, too) or they need a bigger wing. If they're going for simple, then it makes no sense to leave the slat off but then have a very complex flap system. Guesstimating the effectiveness of the slat, I'd have thought you'd need about 25% more wing area to compensate. So unless they're doing something "sneaky" (and with FBW maybe they can pull some tricks with regard to stall speeds) I'd say that should be a 1250 sq.ft. wing.

(Alternatively, the G550 has 2770ft ALD at 75000lbs MLW; assuming a similar CLmax for the G650, they'll need a wing about 10% bigger to maintain similar performance; the G550 quotes 1137 sqft, plus 10% is again in the 1250sqft range. I think that as it stands, on a same-weight basis, the G650 will be a shade better than the G550 for field perf as a result)

[PropulsionGuy]

Gulfstream hasn't certified an all-new airplane since the GII about 40 years ago. It will be interesting to see if they can actually get their TC in 3 years.

http://rgl.faa.gov/Regulatory_and_Guidance_Library%5CrgMakeModel.nsf/0/7CC722691C7E2E1B8625711D006B8572/$FILE/A12EA.pdf

[galaxy flyer]

I am just a dumbbell pilot flying Brand B (the Montreal folks) and I'm trying to make sense of this:

Bigger cabin than GLEX by about 4 inches in cross section
Another 1000 pounds of thrust than the GLEX
AUW of 99,400 pounds, identical to GLEX with latest GW SB
800 pounds less fuel, which means a slightly lower fuel fraction. (see Breguet range formula)

AND it will go at least a 1000 miles (call it 2+10 hrs) farther than the GLEX

Either this new wing is AMAZING in efficiency and the engine is a order of efficiency better

OR

It is constructed with Unobtainium!

That is a big, big improvement in performance and cabin. If it happens, it'll tough to beat.

[jetopa]

The secret about building an effective airplane? Weight saving, clean and effective wing and fuel-saving engines. Check out he 7X vs. the G500. Roughly the same range and speed (yes, I know the cabin of the G500 is longer - but considerably narrower), but the 7X ist about 23,000 lbs. lighter...

Same thing when you compare a CL605 with a F2000EX, by the way.

You can dispute whether or not the French build good cars. Their airplanes are impressive though... :ok:

[galaxy flyer]

Well, the engine has 3.5% better TSFC, so they are gaining about 10% from the wing design. They must be seeing a lot a ops above FL 450

GF