Boeing 777 concepts

[Triton]

Model of Boeing 777 with folding wings located in the Boeing Archives Bellevue, Washington.

Folding wingtips were offered when the aircraft was launched, to appeal to airlines who might use gates made to accommodate smaller aircraft, but no airline purchased this option.

Source:
http://airchive.com/html/museums/boeing-archives-bellevue-washington-usa/boeing-777-model-with-folding-wings-option-/19113

http://airchive.com/html/museums/boeing-archives-bellevue-washington-usa/boeing-777-model-with-folding-wings-option-early-1990s/19112

 

[GeorgeA]

Flight Global writeup on the 777X proposal -- note proposed wing (232 ft span, composite, in-house manufacture, folding option is back):

http://www.flightglobal.com/Features/Boeing-777-special/777X/

All three engine companies are proposing new-generation efforts as well -- GE9X, P&W 10500G, Rolls RB3025.

 

[fightingirish]

From the magazine Aviation Week & Space Technology, July 9th 2012, page 84.

 

[Triton]

Artist's impression of folding wingtips version of Boeing 777.

Source:
http://www.ebay.com/itm/1990-Boeing-777-twinjet-offers-the-option-of-folding-wingtips-Press-Photo-/190704746036?pt=Art_Photo_Images&hash=item2c66e37e34

 

[Grey Havoc]

The 777-10x seems to be stuck in development hell.

 

[sgeorges4]

boeing 777X first flight

and difference

 

[Jason Dykstra (Wyvern)]

Hello,

As of today, the Boeing 777X prototype is awaiting approval for its first flight.


Wyvern

 

[Jason Dykstra (Wyvern)]

Hello again,

I have done some searching and found some photos of the original Boeing 777. This design was a trijet and sort of reminds me of a mix between a 767 and a DC-10, or possibly even an MD-11.

Boeing Archives PART 2: Lots of Amazing Boeing Airplane Models : AirlineReporter

A Place to Share Your Passion for Airlines. Home of the AvGeek!

www.airlinereporter.com

https://flic.kr/p/7Zzqdt

The above link contains a number of other Boeing concepts and experimental aircraft.

Cheers,

Wyvern.

 

[Jason Dykstra (Wyvern)]

She's done it! She's taken her first flight!

 

[RavenOne]

Funnily enough I am currently at 32000 ft in a triple 7 above North America. WiFi not bad on board.

Anyhow after 24 - 48 hours of delay, congrats to Boeing on 777-X

cheers

 

[Grey Havoc]

Safe travels!

 

[Grey Havoc]

Boeing's new 777X extends its folding wingtips to complete first flight

The aircraft's design is intriguing: Folding wingtips will let the 777X fit at existing airport gates while still giving the wings the lift they need.

www.cnet.com

 

[sgeorges4]

rather hard to find picture of the boeing 777 300ER model

Boeing sounds alarm about virus impact on aviation

Boeing issued a stark warning Wednesday about the impact of the deadly coronavirus outbreak, saying there was "no question" it would hammer the aviation industry and the broader economy.

techxplore.com

Cars, planes and cheesecake — 5 things to know today

Here's what to know in business today.

fortune.com

 

[sgeorges4]

other picture here

Boeing announces service orders worth nearly $1 billion

SINGAPORE, Singapore (AFP) — Boeing said Tuesday its global services unit has signed deals worth nearly $1 billion at the Singapore Airshow in areas like parts, maintenance, modification and training. The deals underscore the growing importance of the huge commercial aviation market in the...

www.eaglenews.ph

 

[Jason Dykstra (Wyvern)]

It seems Boeing has considered the conversion of the 777 (specifically, the 777-200LR) into a tanker as a replacement for the KC-10 Extender, generally referred to as the KC-777. This conversion was studied in the early 2000's alongside the KC-X program under the name of KC-Y.

As of 2021, the KC-10 is slated to serve until the 2040s, and I don't believe there is a direct one-to-one replacement for it in the pipeline. I assume the conversion of the 777 into a tanker shouldn't take much effort, unless they take the approach that they had with the KC-46, essentially a mishmash or parts. The conversion of the 777 into a freighter is already possible, so a tanker shouldn't be much of a stretch, right? If the need arises, I assume that an order can be put forward. What would it take to convert the 777 into a tanker? Do they have to be built from scratch, or can they be converted from used airliners? Finally, if an airforce were to put forward an order for this type, would Boeing build it?

Here are some comparisons between the KC-10 and 777

KC-10:
General characteristics

• Crew: 4 (Aircraft Commander, copilot, flight engineer, and boom operator)
• Capacity: 170,000 lb of cargo, 25 pallets and 16 passengers, or 17 pallets and 75 passengers[citation needed]
• Length: 181 ft 7 in (55.35 m)
• Wingspan: 165 ft 4.5 in (50.406 m)
• Height: 58 ft 1 in (17.70 m)
• Wing area: 3,958 sq ft (367.7 m2)
• Airfoil: root: DSMA-496/-521/-522; tip: DSMA-519/-520[42]
• Empty weight: 241,027 lb (109,328 kg)
• Gross weight: 590,000 lb (267,619 kg)
• Max takeoff weight: 593,000 lb (268,980 kg)
• Fuel capacity: 365,000 lb (165,561 kg)
• Powerplant: 3 × General Electric F103 (GE CF6-50C2) turbofan engines, 52,500 lbf (234 kN) thrust each

Performance

• Maximum speed: 538 mph (866 km/h, 468 kn)
• Maximum speed: Mach 0.89
• Range: 4,400 mi (7,100 km, 3,800 nmi) with a maximum passenger capacity; 3,800 nmi (7,038 km; 4,373 mi) with maximum cargo capacity.
• Ferry range: 11,500 mi (18,500 km, 10,000 nmi)
• Service ceiling: 42,000 ft (13,000 m)
• Rate of climb: 6,870 ft/min (34.9 m/s)

Boeing 777:
This table is based of the specifications table from Wikipedia. I created a spreadsheet, and removed information deemed unnecessary, and highlighted the capabilities of the 777-200LR, since it was the variant to which preference was given when Boeing studied the tanker concept, based off of what I've read.

Here are some sources:

USAF lays out X, Y and Z of tanker replacement strategy in three-tranche process to replace ageing KC-135s

Service briefs manufacturers on three-tranche process to replace its ageing KC-135s

www.flightglobal.com

USAF tanker battle resumes

Australia's Leading News Source in Aviation

australianaviation.com.au

KC-777 Widebody Tanker & Transport

www.globalsecurity.org

Handicapping the U.S. Air Force KC-X Tanker/Transport Competition | Defense Media Network

Over a decade since the original KC-X Tanker Modernization requirement to replace the aging U.S Air Force (USAF) fleet of KC-135 Stratotankers was first id

www.defensemedianetwork.com

Pitching 777 for tanker contest could mean more jobs at Boeing Everett plant

Boeing says it's ready and willing to pitch the 777 as its contender in the Air Force tanker competition — an approach that could mean some big changes in the Everett plant that builds them.

www.seattletimes.com

 

[Jason Dykstra (Wyvern)]

I have read articles stating that the 777X was considered as a candidate for the replacement of the VC-25, but the 747-8 was the preferred option. The conversion of the type into the transporter of the President would require various modifications to the interior, exterior, fuselage and electrical system to make it up to standards for the requirement.

 

[mkellytx]

I have read articles stating that the 777X was considered as a candidate for the replacement of the VC-25, but the 747-8 was the preferred option. The conversion of the type into the transporter of the President would require various modifications to the interior, exterior, fuselage and electrical system to make it up to standards for the requirement.

Four engines was the requirement that drove the 747-8, or at least was when I interacted with the program pre 2010. At that point a 777 option was a nonstarter.