Search found 13670 matches

by zeke
Thu Jul 11, 2019 10:52 am
Forum: Technical/Operations
Topic: Captains admonishing FO's for using speed brake on descent
Replies: 47
Views: 4405

Re: Captains admonishing FO's for using speed brake on descent

Flown the RJ series for a number of years and yes, if you want to go down/slow down these speedbrakes are amazingly effective! If you really need to get down quickly on a 737 then drop the gear, flaps 40 and LVL CHG. Holy cow. Or Gear DWN, Flaps 10 and speedbrakes works too. Had an FO show that to ...

Jump to post
by zeke
Wed Jul 10, 2019 5:57 pm
Forum: Technical/Operations
Topic: Did/Does the 779X need a new wing? and does it need to be so big?
Replies: 18
Views: 2217

Re: Did/Does the 779X need a new wing? and does it need to be so big?

Fred You have put a lot of work into that post well done. Yes I do think the GE9X engine could power the 77W, likewise I think the GE90-115 could power the 779 to start flight testing. The only issue with the GE9X on a 77W I do not know about is ground clearance. Not sure if they changed the mountin...

Jump to post
by zeke
Wed Jul 10, 2019 2:26 am
Forum: Civil Aviation
Topic: Engine spinner detaches mid-flight.
Replies: 45
Views: 15123

Re: Engine spinner detaches mid-flight.

777Mech wrote:

From what I've heard, it was a compressor stall that jarred the spinner loose.


Were you on the ground when you heard the compressor stall ?

NWAROOSTER wrote:
I do not know if any earlier Airbus aircraft like A300 and A310 had a RAT.


yes they do

Jump to post
by zeke
Sun Jul 07, 2019 12:20 am
Forum: Civil Aviation
Topic: Passenger is ordered to pay 172G for causing early landing while drunk
Replies: 36
Views: 9979

Re: Passenger is ordered to pay 172G for causing early landing while drunk

Goodbye wrote:
172g?


The US is not metric, they use grands and quarters, inches, feet etc

Jump to post
by zeke
Mon Jul 01, 2019 5:40 pm
Forum: Technical/Operations
Topic: How often does an engine come off?
Replies: 19
Views: 3266

Re: How often does an engine come off?

If I bought a new A350 and operated daily, how many times would be reasonable to expect that an engine has to come off? In theory never. The Trent XWB produces an enormous amount of data (as does the aircraft), if any parameter is trending the wrong way the engine will be removed. The engine config...

Jump to post
by zeke
Mon Jul 01, 2019 12:56 pm
Forum: Civil Aviation
Topic: AF66: missing engine part found in Greenlandic ice
Replies: 27
Views: 10257

Re: AF66: missing engine part found in Greenlandic ice

JamesAlice wrote:
Is the sole purpose of looking for the piece so that they can identify why the engine failed?


Yes, by looking at where the fracture started they can determine the exact failure mode.

Jump to post
by zeke
Mon Jul 01, 2019 12:15 pm
Forum: Technical/Operations
Topic: Falcon business jet horizontal designs - what are the advantages?
Replies: 10
Views: 2184

Re: Falcon business jet horizontal designs - what are the advantages?

I think you are looking for Vmca, minimum control speed air, where Vmcg minimum control speed ground

Jump to post
by zeke
Mon Jul 01, 2019 12:10 pm
Forum: Civil Aviation
Topic: AF66: missing engine part found in Greenlandic ice
Replies: 27
Views: 10257

Re: AF66: missing engine part found in Greenlandic ice

I love the name FrostyBoy :)

Could be made into a good beer also ;)

Jump to post
by zeke
Mon Jul 01, 2019 11:56 am
Forum: Technical/Operations
Topic: Wind tunnel drag test
Replies: 16
Views: 2221

Re: Wind tunnel drag test

My results from wind tunnel test are: 2D test Lift:301 Drag:122 3D test Lift:214 Drag:94 (Note once again,AoA is same for both tests,I didnt increase AoA on 3D airfoil to compensate lift reduction because of tip pressure loss..) How close was the sidewall for the 3D test? If it’s too close it will ...

Jump to post
by zeke
Mon Jul 01, 2019 11:35 am
Forum: Civil Aviation
Topic: AF66: missing engine part found in Greenlandic ice
Replies: 27
Views: 10257

Re: AF66: missing engine part found in Greenlandic ice

No idea how they located a part so deep in ice, and then managed to recover it in what looks like a very remote location.

Jump to post
by zeke
Mon Jul 01, 2019 11:05 am
Forum: Civil Aviation
Topic: United A319 emergency landing at EWR (June 30)
Replies: 34
Views: 10291

Re: Newark ground stop, what is going on?

reltney wrote:

Can’t beat the 4 wheel bogie!


4 wheel bogie is a customer option on the A320 series just like inbuilt brake fans.

Jump to post
by zeke
Mon Jul 01, 2019 11:03 am
Forum: Technical/Operations
Topic: Operating Weights of Emirates 777-300ER's
Replies: 14
Views: 3234

Re: Operating Weights of Emirates 777-300ER's

For your purposes an OEW of 372500 lb and MZFW of 524000 lb and MTOW of 775000 lb is more than representative.

Jump to post
by zeke
Mon Jul 01, 2019 10:25 am
Forum: Civil Aviation
Topic: United A319 emergency landing at EWR (June 30)
Replies: 34
Views: 10291

Re: Newark ground stop, what is going on?

Right down to the axle. Looks like a new MLG strut, too, that will need to be replaced. Glad everyone is ok! They have new wheels on it pretty fast to tug it away Avherald says the crew advised they expected to be able to vacate the runway. The RAT is also still stowed and the flaps and slats in on...

Jump to post
by zeke
Mon Jul 01, 2019 8:53 am
Forum: Civil Aviation
Topic: Ten dead after King Air crashes shortly after takeoff
Replies: 59
Views: 14793

Re: Ten dead after King Air crashes shortly after takeoff

Reminds me of this king air accident, crashed into a building adjacent to the airport soon after takeoff with and engine failure. Gear was not retracted following the failure, failed to climb. https://www.atsb.gov.au/publications/investigation_reports/2017/aair/ao-2017-024/ https://www.atsb.gov.au/m...

Jump to post
by zeke
Mon Jul 01, 2019 5:19 am
Forum: Civil Aviation
Topic: EU warns US that any action against Air Italy would constitute a violation of the US-EU Air Transport Agreement
Replies: 44
Views: 9393

Re: EU warns US that any action against Air Italy would constitute a violation of the US-EU Air Transport Agreement

ICAO has nothong to say in air transport agreements between countries or national/supranational laws concerning foreign ownership. The EU and US both require majority ownership of airlines within their borders by interests holding citizenships within their borders. ICAO has everything to do with ai...

Jump to post
by zeke
Sun Jun 30, 2019 3:57 am
Forum: Civil Aviation
Topic: EU warns US that any action against Air Italy would constitute a violation of the US-EU Air Transport Agreement
Replies: 44
Views: 9393

Re: EU warns US that any action against Air Italy would constitute a violation of the US-EU Air Transport Agreement

The question isn't about "how Italian" is Air Italy - its about the possibility of outside-EU-state funding/control in order to provide advantage and skirt agreements. What is happening between QR and IG is totally legal. ICAO went away from majority ownership requirements to operate inte...

Jump to post
by zeke
Sat Jun 29, 2019 7:56 am
Forum: Civil Aviation
Topic: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines
Replies: 51
Views: 13391

Re: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines

questions wrote:
Why were the cabin lights on during takeoff? And why would they be on if it’s a ferry flight?


Cabin lights are controlled in the cabin. The ferry flight would just have essential crew in the cockpit.

Jump to post
by zeke
Sat Jun 29, 2019 4:43 am
Forum: Civil Aviation
Topic: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines
Replies: 51
Views: 13391

Re: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines

Why are the engines glowing? I've never seen that on a subsonic airliner. They all do it, if you have the correct lighting conditions and angle to look up the tailpipe. Being a 3 engine takeoff TOGA is mandatory, where TOGA is not usually used on most airliners all that often. Trading an A346 for a...

Jump to post
by zeke
Fri Jun 28, 2019 9:44 am
Forum: Civil Aviation
Topic: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines
Replies: 51
Views: 13391

Re: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines

One engine with full fuel and load (obviously not in this case) but no , it can stay aloft barley. I wouldn’t say it could properly fly without two specially the 200 & 300 Depends on the height you are at, it flies and ok on one engine. You can manage to landing it if you had the height to jett...

Jump to post
by zeke
Thu Jun 27, 2019 11:16 pm
Forum: Civil Aviation
Topic: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines
Replies: 51
Views: 13391

Re: Air Tahiti Nui retires A343 F-OSUN, PPT-HNL-VCV on 3 engines

mrpippy wrote:

Talk about curvature of the earth...


Not sure what you mean by that. The 3 engine takeoff performance is predicated on the failure of another engine, that is why they would have stopped in HNL as they would have reduced fuel load out of PPT.

The A340 can fly on just one engine.

Jump to post
by zeke
Thu Jun 27, 2019 10:27 am
Forum: Technical/Operations
Topic: Stuck two nights in LIT: Can't push back
Replies: 23
Views: 3313

Re: Stuck two nights in LIT: Can't push back

There supposedly was talk of reversing out of the gate, but that idea seems to have been dropped. Most aircraft that I know of with high bypass engines it is an aircraft limitation that prohibits the use of reverse to actually revers the aircraft. You would be going back to a DC-9 or similar for th...

Jump to post
by zeke
Wed Jun 26, 2019 4:24 pm
Forum: Technical/Operations
Topic: Individual Wheel Load
Replies: 9
Views: 1558

Re: Individual Wheel Load

Guys, Thanks for the responses. I'm a total amateur when it comes to these technical calculations, but will try to figure it out. Can someone please give me a quick example of how I can calculate a single wheel load using ACN numbers. I tried to understand it but got lost way too fast. I should pro...

Jump to post
by zeke
Mon Jun 24, 2019 6:04 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

You want to continue to stay UA is lying that is your opinion which I respectfully disagree with you. I don’t need you, you are also saying Pakistani airspace is not closed. Like I stated in my last post dispatchers here have already said there is one route airlines can use over Pakistan (you highl...

Jump to post
by zeke
Mon Jun 24, 2019 10:30 am
Forum: Technical/Operations
Topic: Can the A340-500 do the longest posible flights?
Replies: 31
Views: 5116

Re: Can the A340-500 do the longest posible flights?

Technically spoken, anything is possible ;) But the TC holder didnt offer it, no STCs available. Boeing offered the ACT Option for the 77L from the shelf, so they are there. Coversion/certification would simply be not viable. You could do the same to A321 CEO (where an STC Option for more ACTs in t...

Jump to post
by zeke
Sun Jun 23, 2019 11:19 am
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

There are 3 routes open that airlines can use to get to/from India. I've been told by dispatchers here at UA who have actually worked this flight there are 2 routes that are eastbound and 1 westbound route I dont know what you have been told exactly, only what you have written. You can track west o...

Jump to post
by zeke
Sat Jun 22, 2019 2:36 pm
Forum: Civil Aviation
Topic: Basler BT-67 crashed in Ontario
Replies: 12
Views: 2533

Re: Basler BT-67 crashed in Ontario

bennett123 wrote:
Is there any chance of recovery?.


I hope so


Noshow wrote:
Or somebody put in Avgas? Just speculating. Just remembering the first Diesel Cessnas.


Avgas should burn in a PT6, I cannot remember the mix allowed, it does impact overhaul periods

Jump to post
by zeke
Sat Jun 22, 2019 9:18 am
Forum: Civil Aviation
Topic: Aeroflot’s first A350 routes (and layout)
Replies: 15
Views: 3114

Re: Aeroflot’s first A350 routes (and layout)

https://onemileatatime.com/aeroflot-a350/


Those B/E Aerospace Super Diamond business seats look nice, do any other airlines use them ?
-->

SQ22 wrote:
Here is a link with information about the cabin layout:

https://onemileatatime.com/aeroflot-a350/


Those B/E Aerospace Super Diamond business seats look nice, do any other airlines use them ?

Jump to post
by zeke
Sat Jun 22, 2019 9:09 am
Forum: Technical/Operations
Topic: Can the A340-500 do the longest posible flights?
Replies: 31
Views: 5116

Re: Can the A340-500 do the longest posible flights?

AFAIK only one ACT available for the -600 (fwd cargo hold, can keep the aft crew rest), one for the-300 (aft cargo hold, requires revoming of the MCR Crew Rest). None for the-500. Airbus once throwed a big ACT on a -200 (World Ranger) to make a Flight Le Bourget - Auckland and back nonstop, but nev...

Jump to post
by zeke
Sat Jun 22, 2019 8:53 am
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

Which is exactly in the spot over the Gulf of Oman where the Iranians shot down the US drone; this time. No it is not, geography may not be your strong area. The Global Hawk got shot down over international waters just to the south of Bandar Abbas, the headquarters of the Iranian Navy. Very nearby ...

Jump to post
by zeke
Fri Jun 21, 2019 11:46 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

We have flown those routes within the last few months, however as of the last few days our internal security audit, with the cooperation of flights ops and flight planning chose its just best to avoid the area as a whole (Iran, Iraq, Saudi Arabia, Persian Gulf and the Gulf of Oman) given the recent...

Jump to post
by zeke
Fri Jun 21, 2019 11:05 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

You do realize your "Over France, Italy, Egypt, Saudi Arabia, UAE, Oman, Pakistan to India avoiding Iranian airspace." flies over the Gulf of Oman which you earlier pointed out was off limits by the FAA. That’s only half true, the FAA order says the Gulf of Oman AND within Iran Airspace ,...

Jump to post
by zeke
Fri Jun 21, 2019 1:32 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

Looks like they are going to ferry N2644U from BOM to HNL, and cancelled the BOM to EWR flight.

Jump to post
by zeke
Fri Jun 21, 2019 1:06 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

UA has taken the route you suggest over Dubai however we still are not able to access Pakistani airspace. M504 through Pakistan is open to UA, however they can go straight from Oman to India without going through Pakistan. https://i.ibb.co/G2QTJXp/Capture.png This is what is open per NOTAM Westboun...

Jump to post
by zeke
Fri Jun 21, 2019 12:35 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

If UA wanted to operate a one stop flight they most certainly could do that but are additional cost associated with operating a one stop flight. Look at UA's over all international long haul network and show me where you see any one stop flights. There is a reason airlines are moving more and more ...

Jump to post
by zeke
Fri Jun 21, 2019 12:12 pm
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

Oykie wrote:
does the FAA emergency order encourage European and Asian airlines to avoid Iran and the Gulf of Oman?


No

Oykie wrote:
Do you think airlines will avoid this corridor now?


Each airline will make their own assessment, every country has different diplomatic relationships.

Jump to post
by zeke
Fri Jun 21, 2019 9:47 am
Forum: Civil Aviation
Topic: UA suspends BOM service effective immediately
Replies: 158
Views: 28170

Re: UA suspends BOM service effective immediately

The reason for this is a UAV was shot down over the gulf of Oman in the 20th. The UAV was at high altitude, and the size of an airliner (Global Hawk). That and two ships attacked by missiles. FAA issued an emergency order not to fly through Iran or the Gulf of Oman. Pakistan is only allowing limited...

Jump to post
by zeke
Fri Jun 21, 2019 9:02 am
Forum: Technical/Operations
Topic: A320neo Hydraulics System
Replies: 3
Views: 1640

Re: A320neo Hydraulics System

A far as I know it is the same as the A320, 3 hydraulic systems, 2 engine driven, one by electric motor. 3000 psi.

Jump to post
by zeke
Fri Jun 21, 2019 8:50 am
Forum: Technical/Operations
Topic: 787 vs A350 range
Replies: 383
Views: 70425

Re: 787 vs A350 range

From a lightly loaded a350 - 20t payload, 9.5hr trip, avg fuel burn only 5.1t per hour. What a difference getting higher sooner makes. You wouldn't buy an A350 for that, that is an A321XLR profile. Probably a seasonal load one way. That would mean payload of ~26T for QF9 and ~29T for QF10. Looks li...

Jump to post
by zeke
Fri Jun 21, 2019 8:43 am
Forum: Technical/Operations
Topic: ETOPS-Alternates
Replies: 5
Views: 1422

Re: ETOPS-Alternates

JAGflyer wrote:
Part of using an airport as an en-route ETOPs alternate is the need for the airport to be able to handle your aircraft's passenger capacity as well as have accommodation in the terminal/hotels for that amount of passengers.


Only for beyond 180 minutes ETOPS (anything more than 207 minutes).

Jump to post
by zeke
Thu Jun 20, 2019 1:17 pm
Forum: Civil Aviation
Topic: More details on BOOM SST at Paris. SFO to Toyko in 5.5 hours. First flight in 2020...
Replies: 102
Views: 12800

Re: More details on BOOM SST at Paris. SFO to Toyko in 5.5 hours. First flight in 2020...

The mats does not add up for me.

Mach 2.2 at FL600 is close enough to 1260 kts, SFO to NRT should be about 3.5 hrs (4500 nm), the maximum endurance of the aircraft.

Why the 5.5 hrs SFO to NRT ? That’s more like Mach 1.4.

Jump to post
by zeke
Thu Jun 20, 2019 12:32 pm
Forum: Civil Aviation
Topic: Paris Air Show 2019: Airbus News and Orders Thread
Replies: 475
Views: 123934

Re: Paris Air Show 2019: Airbus News and Orders Thread

200 x 105 = 21tonnes. So seat numbers in excess of 200 must lead to some loss of fuel? [assuming that they were not fuel volume limited at 20.9T payload] [It'd lead to loss of range anyway through incrementally higher fuel burn, but thats not really what we're talking about.] I have only seen the l...

Jump to post
by zeke
Thu Jun 20, 2019 11:37 am
Forum: Civil Aviation
Topic: Paris Air Show 2019: Airbus News and Orders Thread
Replies: 475
Views: 123934

Re: Paris Air Show 2019: Airbus News and Orders Thread

Also, Airbus quoted range on 90kg per pax, 105kg is more typical per passenger. The A320 with 2700nm range in B6 config had issues flying 2400nm LGB-JFK. There must be margin, in particular in winter. That is why A350s are needed HKG-LHR to allow for cargo. Some of the routes you list might work wi...

Jump to post
by zeke
Thu Jun 20, 2019 11:11 am
Forum: Civil Aviation
Topic: More details on BOOM SST at Paris. SFO to Toyko in 5.5 hours. First flight in 2020...
Replies: 102
Views: 12800

Re: More details on BOOM SST at Paris. SFO to Toyko in 5.5 hours. First flight in 2020...

After two years they still have no engine for overture it seems. But all numbers and promises are related to the engine used. The engine the want to use is still under development. They are using 3xGE turbojets for the XB-1 Title seems misleading. Test flight possibly in 2020 is more accurate. Bet ...

Jump to post
by zeke
Thu Jun 20, 2019 10:40 am
Forum: Civil Aviation
Topic: Paris Air Show 2019: Airbus News and Orders Thread
Replies: 475
Views: 123934

Re: Paris Air Show 2019: Airbus News and Orders Thread

The xLR will have 3800nm to 3900 nm of still air range: http://www.gcmap.com/mapui?R=3800nm%40hnl That is ORD, IAH, DFW, DTW to HNL. This opens up ORD to the EU. Wow does it open up CLT and PHL across the Atlantic. http://www.gcmap.com/mapui?R=3800nm%40clt Lightsaber The informatic released with th...

Jump to post
by zeke
Wed Jun 19, 2019 11:19 am
Forum: Civil Aviation
Topic: FG: How are the all-new Airbus (A350) and Boeing (787) widebodies faring?
Replies: 103
Views: 15208

Re: FG: How are the all-new Airbus (A350) and Boeing (787) widebodies faring?

Safe to say the 787 and A350 families both have a bright future ahead 787 for sure but 350 is in hot water. orders (almost) stop coming in once the first aircraft was delivered. Also reports of performance dissatisfaction are plenty. 350 is a fine plane, too late and too pricey for what it can offe...

Jump to post
by zeke
Tue Jun 18, 2019 8:32 pm
Forum: Technical/Operations
Topic: Can the A340-500 do the longest posible flights?
Replies: 31
Views: 5116

Re: Can the A340-500 do the longest posible flights?

https://www.airbus.com/content/dam/corp ... FAST35.pdf
-->

The additional centre tanks on the wide bodies are the shape of two LD3s, fit into any wide body hold. They are 7200 litres capacity each with a weight of 615 kg each.

More details in FAST 35 https://www.airbus.com/content/dam/corp ... FAST35.pdf

Jump to post
by zeke
Tue Jun 18, 2019 8:23 pm
Forum: Civil Aviation
Topic: Airbus a330-900 460 seats
Replies: 75
Views: 11102

Re: Airbus a330-900 460 seats

500 seats in a A330, who are the passengers, Dwarfs ? Just because it can be done should it be done ? 9 seats per row in an A330 is insane. What will be the flying hours on such a plane ? Is that a high density regional airplane with a flying time of up to 6 hours ? One of the main exports from the...

Jump to post
by zeke
Tue Jun 18, 2019 7:54 pm
Forum: Technical/Operations
Topic: Can the A340-500 do the longest posible flights?
Replies: 31
Views: 5116

Re: Can the A340-500 do the longest posible flights?

Could an A340-500 do routes such as DTW-PER, EZE-PVG, PKU-UIO, and SYX-ARI? (Not for commercial purposes) Via service bulletin I believe up to 5 additional centre tanks can be installed, each of them are 7200l/5200 kg capacity. That would raise the range to around 12500 nm. No idea if anyone actual...

Jump to post
by zeke
Tue Jun 18, 2019 9:55 am
Forum: Civil Aviation
Topic: The Atlantic Tackles MH370 Final Conclusions
Replies: 165
Views: 25308

Re: The Atlantic Tackles MH370 Final Conclusions

Unless grossly overfilled, an O2 cylinder will not explode "just like that" due to overfilling; from memory, they are tested at least at 150% of the normal operating pressure, so it'd take a lot to make it explode. And even then, there is an overpressure disk that will rupture and release...

Jump to post