CityofAthens From , joined Dec 1969, posts, RR: Posted (7 years 8 months 2 weeks 5 days 23 hours ago) and read 3559 times:
Just operated a PHX-LHR flight on the good 'ole -400 and wondered, given the very high temperatures in the PHX area over the last couple of days, whether this flight is ever weight restricted?
Can I just say what a wonderful place Arizona is! Unfortunately I was on the 4-day trip (we have a 5-day PHX) but I had a fabulous time tubing down the Salt River and driving along the Apache Trail....I'm surprised we fly here but loads on both flights were pretty good - full in First, and Club was 75% full outbound, approx 60% inbound to London (where a high-J aircraft was operated much to our surprise!) Pretty full down the back too....
I'm also surprised we don't have any serious competition on the route ... I'm very surprised not to see Lufthansa here!
RoseFlyer From United States of America, joined Feb 2004, 11166 posts, RR: 52
Reply 3, posted (7 years 8 months 2 weeks 5 days 22 hours ago) and read 3439 times:
I think the 744 would probably be one of the least likely to be weight restricted airplanes that could operate the route. The 744 has quite a bit of extra available range, so unless BA takes quite a bit of cargo, they probably have room before MTOW.
If you have never designed an airplane part before, let the real designers do the work!
HZ747300 From Hong Kong, joined Mar 2004, 2134 posts, RR: 0
Reply 7, posted (7 years 8 months 2 weeks 5 days 18 hours ago) and read 3191 times:
I know it's a city which typically still sits over 100F at midnight, but isn't the BA departure to Heathrow after sundown? It's a shame that it is all the valley can support nonstop to Europe, but I suppose people are used to connecting through somewhere else anyways.
I will still never forget the day it was too hot to fly in Phoenix, not that the planes could not fly, but it was not specified in the manual and I think most of them had to divert to Tucson. I still remember the asphalt sinking under my shoes then.
Quoting CityofAthens (Thread starter): Can I just say what a wonderful place Arizona is! Unfortunately I was on the 4-day trip (we have a 5-day PHX) but I had a fabulous time tubing down the Salt River and driving along the Apache Trail....
OldAeroGuy From United States of America, joined Dec 2004, 3835 posts, RR: 66
Reply 10, posted (7 years 8 months 2 weeks 5 days 11 hours ago) and read 2858 times:
Quoting CityofAthens (Thread starter): Just operated a PHX-LHR flight on the good 'ole -400 and wondered, given the very high temperatures in the PHX area over the last couple of days, whether this flight is ever weight restricted?
At 106 deg F, a 744 MTOW restriction is probably a certainty.
However, since the great circle distance from PHX to LHR is only 4580 nm and the flight is east bound, there may be little if any payload restriction since the 744 with RR engines has greater than 5600 nm range at MZFW.
[Edited 2008-09-09 09:12:07]
Airplane design is easy, the difficulty is getting them to fly - Barnes Wallis
SunriseValley From Canada, joined Jul 2004, 6149 posts, RR: 6
Reply 13, posted (7 years 8 months 2 weeks 5 days 4 hours ago) and read 2548 times:
I took a look at the load/range and runway length charts for the -524G R.R. version of the -400ER.
Firstly there is no runway length chart for a 38C (100F) temperature which is something like Standard day + 44F . However for the sector distance the TOW at MZFW looks to be just over 800K lb. Adding the difference between Standard day and Standard day + 27F to the Standard Day +27 table suggests a takeoff distance of not more than 10,000ft. PHX has 11500ft so it would appear that there should be no problem. The probability of being at MZFW is pretty unlikely I would think.
Glad to hear, I rely on the flight to get me to the UK and to get friends and family out here.
Quoting EA CO AS (Reply 5): 106F is on the cool side for summer, actually. Very high for PHX is generally 116F or more
Based upon this summer's temps, 106 is up there. We had a run of 110+ in June but had a good monsoon season that has kept temps down but humidity up Only 100 today, and below that for the next few days.
TymnBalewne From United States of America, joined Mar 2005, 982 posts, RR: 1
Reply 18, posted (7 years 8 months 2 weeks 4 days 2 hours ago) and read 2167 times:
On Day 1 of BA's operation out of PHX there was a strong concern that the fully booked DC-10 would either have to leave bags behind or make a fuel stop enroute because of the Arizona heat. Luckily that PR nightmare didn't come to pass.