What is the difference between a 773/77W?

[UAL744LAX]

Just what the title says.....

What is the difference between the two????

[P3_Super_Bee]

just what the title says.....

What is the difference between the two????

773 = 777-300
77w = 777-300er

[HalcyonDays]

773 is the basic 777-300 and 77W is the 777-300ER.

[Eric Diffoot]

Technical Characteristics -- Boeing 777-300

	777-300
Passengers Typical 3-class configuration Typical 2-class configuration Typical 1-class configuration	368 451 up to 550
Cargo	Total volume of 7,120 cu ft (202 cu m) including eight 96-in x 125-in pallets in forward lower hold, 20 LD-3 containers in aft lower hold, and 600 cu ft (17 cu m) bulk cargo
Engines maximum thrust	Pratt & Whitney 4098 98,000 lb Rolls-Royce Trent 892 90,000 lb General Electric 90-94B 93,700 lb
Maximum Fuel Capacity	45,220 gal (171,160 L)
Maximum Takeoff Weight	660,000 lb (299,370 kg)
Maximum Range	6,015 nautical miles (11,135 km) Typical city pairs: Tokyo-Singapore Honolulu-Seoul San Francisco-Tokyo
Typical Cruise Speed at 35,000 feet	0.84 Mach
Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter	199 ft 11 in (60.9 m) 242 ft 4 in (73.9 m) 60 ft 8 in (18.5 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m)

		777-300ER
Passengers Typical 3-class configuration Seating ranges from six- to 10-abreast with two aisles.		365
Cargo		7,120 cu ft (201.6 cu m) includes up to eight pallets, 20 LD-3 containers
Engines maximum thrust		GE90-115B 115,300 pounds (512 kN)
Maximum Fuel Capacity		47,890 U.S. gal (181,280 L)
Maximum Takeoff Weight Highest available weight, loading restrictions apply.		775,000 lbs (351,534 kg)
Maximum Range		7,930 nautical miles (14,685 km) Typical city pairs: Los Angeles - Sydney New York - Hong Kong Singapore - London Paris - Los Angeles Dubai - New York (Approx. 15 hours)
Typical Cruise Speed at 35,000 feet		0.84 Mach
Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter		212 ft 7 in (64.8 m) 242 ft 4 in (73.9 m) 61 ft 5 in (18.7 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m)

http://www.boeing.com/commercial/777family/pf/pf_lrproduct.html

[ihatemondays]

From a spotter's perspective, the "w" means "raked Wingtips", as Boeing calles them, though you usually see them only from rather close range.