FastEddieB
Touchdown! Greaser!
- Joined
- Oct 14, 2013
- Messages
- 11,533
- Location
- Lenoir City, TN/Mineral Bluff, GA
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Display name:
Fast Eddie B
Finally everyone is home!
WHEW!
WHEW!
Well, maybe your fleet is different but straight from our systems manual.Almost. About 1300 pounds/minute. It uses both center pumps to jettison fuel but it’s 1300 total. Not 1300 per each pump
More time yet, take a jet.Time to spare, go by air.
Depends on where we are going, how much cargo/pax we have and what the weather forecast says (just like every other airline flight).
I've never flown the 777 but a quick search turned up this page: https://www.liquisearch.com/boeing_777/specifications
The biggest difference (that I saw) between max T/O and max landing weight was for the 777-200LR which I think was only flown by Delta (before we retired them) in the US. At any rate, that's about 274k# difference if it was max'd out. Another search gave me about 14k#/hr in cruise. We're burning about 28k#/hr in the 330 on takeoff so the 777 must be at least that. Ballpark you'd burn 130k# ish in 8 hours. So you could be overweight by a good bit and need to dump if you were in the worst case configuration and type of 777. Maybe it's worth it to be 30k# lighter? Unless we know more about the specifics it's all a guessing game. They probably had a good reason to dump - and maybe their company says they need to. Could be as simple as that.
“don’t be alarmed but the navigation system is not working and our radio is out
How can a modern airliner lose Navigation and Communications???
Heck - get those guys a subscription to Fore Flight (splurge for the premium offer) and let them fly off the I pad. Toss in a Sporty's PJ handheld, and good to go!!
Finally everyone is home!
WHEW!
Route specific. You can cross the Atlantic with VHF only but you have to take a route well to the north to stay within VHF range (Blue Spruce routes). All long-haul airliners will have multiple HF and VHF radios installed, though. Nearly all with have satellite-based CPDLC as well. If both of those fail, you have to ability to relay messages through other aircraft in the area on VHF as everyone is monitoring both oceanic air-to-air (123.45) and Guard.Are airliners required to have HF radios for transoceanic flights?
Don't forget a homemade Stratux.
Yea our manual says rate of 1300 pounds per minuteWell, maybe your fleet is different but straight from our systems manual.
“Two dual pump units provide a high capacity jettison rate of approximately 2600 pounds per minute.”
Maybe Boeing had different options available.
I know there’s always different options that can be selected that affect weight, altitude, etc. Guess this is one of them.Yea our manual says rate of 1300 pounds per minute
I was on a 777, CDG to IAD. We had to stop and reboot the aircraft before take off.
Luckily the reboot fixed the issue.
It was a Boeing. And Boeing is in Seattle area. And MicroSoft in the the Seattle area.........
Yea our manual says rate of 1300 pounds per minute
We are required by Op Specs to have HF and CPDLC; we can't go unless the latter is working upon departure. I've lost it a few times and had to revert to HF which is usually a result of lost signal.Are airliners required to have HF radios for transoceanic flights?
Some more onfo:
https://avherald.com/h?article=4ffd0d8c&opt=0