B777-200 Restricted Take Off Weight

[stgeorge2035]

A question for all of you tech crew out there. I would like to know what the restricted take off weight for a B777-200 and B777-200ER would be on a runway 2350m long? Any answers would be great.

Thanks.

[DraggieDriver]

That would depend on the QNH, temperature, airfield elevation and obstacles in the OEI departure path. Possibly further affected by company policies on flex thrust use and headwind allowance.

In absence of those details an answer is not possible.

[belowMDA]

Not to mention which engine option you shelled out the coin for....
Would give you an ISA example but I just deleted the OPT program from my computer the other day to make some space. Sorry.

[belowMDA]

Actually I didn't delete it, here is the -200ER figure for a Trent 895, General Data 2300m ISA conditions no obstacles, sea level, dry, no wind, full thrust and assuming a 1% slope.

T/O Max
Flaps 20
266250kg

Can't do you a figure for 2350m sorry, rounded to the nearest 100. Don't have the time to find whether the difference is a linear one between 2300 and 2400 to get you the 2350m.

[DraggieDriver]

I would assume that's also with no performance limiting CDL's applied.

[2bigmellons]

Sorry to butt in.

Just curious, what is the MTOW for this aircraft?

[DraggieDriver]

according to airliners.net (and google)
777-200 - Range 229 tonne MTOW 7000km (3780nm), 233 tonne MTOW 7778km (4200nm), 247 tonne MTOW range 9537km (5150nm).
777-200ER - 263 tonne MTOW range 11,037km (5960nm), 286 tonne MTOW range 14,316km (7730nm).

[Chimbu chuckles]

The 777-200ER I fly has a MTOW of 294, 835kg (RR Trent 895s). MLW is 208,652kgs.

belowMDA was that with packs off and Improved climb?

I forgot to feed your data (+ some average assumptions) through the OPT tonight - maybe I will remember on the next sector in a couple of days.

[belowMDA]

Okay full disclosure.....

TAKE-OFF PERFORMANCE 07MAR12 11:58:48

AIRPORT : GD23 / General Data 2300m
RUNWAY : 2300m
RWY ELEV : 0 FT
CONDITION : Dry
WIND : 0 KT
OAT : 15 C
QNH : 29.92 IN HG
No NOTAM data found.


PACKS : Off
ANTI-ICE : Off
MEL ITEMS : None
CDL ITEMS : None

TOW : 266250 KG
MFRH : 1500 ft AGL
MLOH : 3440 ft AGL

----------------------------------------------------

FLAPS : 20
THRUST RATING : TO Max
POWER SETTING : 1.567

V1: 141 KT
VR: 146 KT
V2: 154 KT
ENGINE FAILURE PROCEDURE:
No Procedure.

WEIGHT AND BALANCE INFORMATION

WEIGHT (KG) %MAC LIMIT MIN MAX
TAXI UNKN UNKN 298463
TAKEOFF N/A N/A 297556 UNKN UNKN
LANDING UNKN UNKN 213188 UNKN UNKN
ZFW UNKN UNKN 199580 UNKN UNKN
OEW UNKN UNKN



RUNWAY COMMENTS:
No Runway Comments.

[zlin77]

B777-200ER with PW-90,000 lbs. thrust, Max TOW 645,000 lbs (293,180 Kg), I don't have access to performance tables for this variant, but many factors will affect the figures, field elevation and second segment obstacles can be quite limiting, by the way, I believe there is another runway extension planned at YBCG...As The New Singaporean LCC Scoot will be operating OOL-SIN in the near future it will be interesting to see if RWY 32 departures with high ambient temperatures will be affected....

[mustafagander]

Don't forget to check MLW at the next port.