Search found 40 matches

by Armadillo1
Mon Jan 22, 2018 11:19 pm
Forum: Civil Aviation
Topic: Embraer E-Jet E2 gets another performance boost
Replies: 30
Views: 4719

Re: Embraer E-Jet E2 gets another performance boost

https://www.prnewswire.com/news-releases/embraer-sa-e190-e2-flight-test-results-confirm-e2-as-most-efficient-single-aisle-jet-300586248.html which represents a 17,3% improvement when compared to the current generation E190, and nearly 10% better than its direct competitor. what means a direct compet...

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by Armadillo1
Mon Jan 22, 2018 9:04 pm
Forum: Technical/Operations
Topic: Why placing 1st/business class in nose?
Replies: 32
Views: 5162

Re: Why placing 1st/business class in nose?

thanks to all, it helps a lot.

so nowadays the main issue is first to deplane, and a second is a tradition?

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by Armadillo1
Sun Jan 21, 2018 10:53 pm
Forum: Technical/Operations
Topic: Why placing 1st/business class in nose?
Replies: 32
Views: 5162

Why placing 1st/business class in nose?

Instead of tail?

just for split during boarding?

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by Armadillo1
Sun Jan 21, 2018 8:38 pm
Forum: Civil Aviation
Topic: DL MD-88 Phase Out
Replies: 100
Views: 31435

Re: DL MD-88 Phase Out

how many cycles oldest of this birds have?

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by Armadillo1
Sun Jan 21, 2018 12:03 pm
Forum: Civil Aviation
Topic: Air Transat to test WheelTug system to taxi between runway and terminal
Replies: 12
Views: 2962

Re: Air Transat to test WheelTug system to taxi between runway and terminal

i thought this thing weights about 300kg and need to burn more fuel in flight. what is a real advantage?

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by Armadillo1
Sat Jan 20, 2018 9:47 pm
Forum: Civil Aviation
Topic: Why A-380 doesn’t sell in more densely populated countries?
Replies: 82
Views: 7764

Re: Why A-380 doesn’t sell in more densely populated countries?

There are simply not many routes in the world where you can fill 800+ seats consistently. actual sitting from ~450 to 600 with flatbeds, bar and more and more. we all talking about the same thing, i just ask not to use completely wrong arguments can planet live without a380 now? yes but she have a ...

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by Armadillo1
Sat Jan 20, 2018 9:41 pm
Forum: Civil Aviation
Topic: Why A-380 doesn’t sell in more densely populated countries?
Replies: 82
Views: 7764

Re: Why A-380 doesn’t sell in more densely populated countries?

Ok, let's use 436 vs 845. Even with twice airport/navi charges, A333/787 will be more profitable. . yes. if you transport sardines only. and even here for 333 better comparing with 8-abreast actualy. a380 have much more room for unique leisure options comparing with any current plane. so its more c...

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by Armadillo1
Sat Jan 20, 2018 9:08 pm
Forum: Civil Aviation
Topic: Why A-380 doesn’t sell in more densely populated countries?
Replies: 82
Views: 7764

Re: Why A-380 doesn’t sell in more densely populated countries?

compare apples to apples please.

with 436 actual sardines in 333 will be about 845 in 388, still having more room for each.

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by Armadillo1
Sat Jan 20, 2018 12:32 am
Forum: Civil Aviation
Topic: Theoretical 777-based replacement for 747?
Replies: 83
Views: 8458

Re: Theoretical 777-based replacement for 747?

for first, tell me about how you imagine a wing for new VLA, if even 778 using folding wingtips.
i dont see a plane much larger 779 before avanty style triple wing come in masses

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by Armadillo1
Fri Jan 19, 2018 10:29 pm
Forum: Civil Aviation
Topic: DXB Dubai Intl Airport 20 Years Ago! (1998 video)
Replies: 25
Views: 3909

Re: DXB Dubai Intl Airport 20 Years Ago! (1998 video)

0:51 Yak-42D

dont see tristar, but MD-11 and DC-10

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by Armadillo1
Sat Jan 13, 2018 11:22 am
Forum: Civil Aviation
Topic: Mexico's Interjet $$$ problems & Sukhoi fleet
Replies: 101
Views: 27003

Re: Stranded Russian Jets in Mexican Hangars Haunt Troubled Airline

also, Volaris grounded 4 of 11 A319, and Aeromexico Connect - all 19 E135/145 it all about market demand. about grounded ssj: XA-JLG - substantially damaged barrel XA-PBA - nose damage, grounded since 2015 the rest is XA-BVM XA-JLV and i think can be used when they will be needed also about "In...

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by Armadillo1
Sat Jan 13, 2018 11:14 am
Forum: Civil Aviation
Topic: Mexico's Interjet $$$ problems & Sukhoi fleet
Replies: 101
Views: 27003

Re: Stranded Russian Jets in Mexican Hangars Haunt Troubled Airline

if your competitor need such articles it means you doing right. Interjet has no need to "transform as ULC" as they feeling good with they own strategy. for 2017 https://www.20minutos.com.mx/noticia/312419/0/interjet-aumenta-12-por-ciento-movimiento-de-pasajeros-en-diciembre/ they transferr...

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by Armadillo1
Sat Jan 13, 2018 10:33 am
Forum: Technical/Operations
Topic: Hypothetical windowless airliner questions (technical)
Replies: 26
Views: 2242

Re: Hypothetical windowless airliner questions (technical)

We're talking probably 30-40 % higher OEW here. Two: Once you have the structure, you'll land probably 60-70% more passenger. Assuming standard 300 widebody, you raise it with 200 persons. Another 40.000 lbs. facepalm its not about fitting 789 as dd's with old wing. its about placing 777 load in 76...

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by Armadillo1
Sat Jan 13, 2018 10:08 am
Forum: Civil Aviation
Topic: Is it time for Three Engine Hybrid Aircraft?
Replies: 63
Views: 7027

Re: Is it time for Three Engine Hybrid Aircraft?

it can pe possible at 1960x. demo flew on common vehicles (Tu-95 and B-36)
some rumors about USA studied for global hawk

it is absolutely no reason for this.

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by Armadillo1
Sat Jan 13, 2018 9:08 am
Forum: Civil Aviation
Topic: Is it time for Three Engine Hybrid Aircraft?
Replies: 63
Views: 7027

Re: Is it time for Three Engine Hybrid Aircraft?

F1 teams try to get leaner overall burn out of their engines by having a locally rich small pre-ignition chamber which shoots out flames to ignite the main (lean) ignition chamber. Modern turbofans have rather similar combustion chamber AFRs to high performance piston engines so this tech could wor...

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by Armadillo1
Fri Jan 12, 2018 10:42 pm
Forum: Civil Aviation
Topic: Is it time for Three Engine Hybrid Aircraft?
Replies: 63
Views: 7027

Re: Is it time for Three Engine Hybrid Aircraft?

solar panel on wings, than small electric Motor for use this power time to time. it will be a first step next question is how we can improve jet turbine using small extra power. anything for better fuel mix or better fuel burn? may be a small lightning inside chamber can do something) or somehow ele...

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by Armadillo1
Fri Jan 12, 2018 10:30 pm
Forum: Civil Aviation
Topic: Is it time for Three Engine Hybrid Aircraft?
Replies: 63
Views: 7027

Re: Is it time for Three Engine Hybrid Aircraft?

i think cessna caravan size can be more useful for hybrid and solar panels

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by Armadillo1
Mon Jan 08, 2018 9:34 pm
Forum: Civil Aviation
Topic: Why use widebodies for domestic flights?
Replies: 100
Views: 14512

Re: Why use widebodies for domestic flights?

william wrote:
An A321 CEO and NEO can hold almost the same amount as a 767-200, there is your new widebody......................Yeah.
.

same for 757 but that times 767 used.
may be people changed and|or changed the people who flying?

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by Armadillo1
Sat Jan 06, 2018 11:59 am
Forum: Civil Aviation
Topic: AA 737 fleet. Will it ever reach 400 at its maximum peak?
Replies: 13
Views: 3713

Re: AA 737 fleet. Will it ever reach 400 at its maximum peak?

bw50505 wrote:
I was under the impression they were going to start retiring some of the 738 soon because of corrosion issues.

where i can read about this?

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by Armadillo1
Sun Dec 31, 2017 5:50 pm
Forum: Technical/Operations
Topic: Cold weather operations.
Replies: 9
Views: 1033

Re: Cold weather operations.

living in Moscow, still dont understand what are you talking about

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by Armadillo1
Tue Dec 19, 2017 5:36 pm
Forum: Technical/Operations
Topic: Compression Ratio & Combustion Temp: Relation to Fuel Efficiency
Replies: 15
Views: 2973

Re: Compression Ratio & Combustion Temp: Relation to Fuel Efficiency

what about higher temperature?

is it better for hydrocarbon only or for metane and hydrogen too?
why?

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by Armadillo1
Tue Dec 12, 2017 5:24 pm
Forum: Technical/Operations
Topic: Electric Powered Jets
Replies: 26
Views: 3467

Re: Electric Powered Jets

what about 1 engine failure issue?

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by Armadillo1
Wed Nov 29, 2017 2:43 pm
Forum: Technical/Operations
Topic: 6 wheel bogey
Replies: 24
Views: 2692

Re: 6 wheel bogey

DH106 wrote:
Starlionblue wrote:
IIRC Tu-144 had 8 wheel bogies back in the 60s....


Weren't they 4 wheel bogies with a double tire on each?
Think they were designed like that to be thin enough to retract edge on into the nacelles.

The answer is: this is one disk with 2 tyres

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by Armadillo1
Tue Nov 28, 2017 9:03 pm
Forum: Technical/Operations
Topic: 6 wheel bogey
Replies: 24
Views: 2692

Re: 6 wheel bogey

Is each tire an independent unit with individual rim and bearing or is it a "unit piece made out of rim and spacer segments fitted with two tires each. to check: can you independently rotate the tires on one axle stub? I would think that they rotate independently. It would affect the aircraft'...

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by Armadillo1
Tue Nov 28, 2017 7:50 pm
Forum: Civil Aviation
Topic: Airbus weighs response if Boeing launches new mid-market model
Replies: 909
Views: 187966

Re: Airbus weighs response if Boeing launches new mid-market model

not sure i'm in right topic... what airbus need to do is admit they are now wrong in choosing fuselage size for widebodies. A350 is a perfect big wing with 787 fuselage 330NEO is a 787 size plane (for now, not about 1990) with less capacity. what they have to do is a change a cross-section. Can they...

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by Armadillo1
Tue Nov 28, 2017 6:55 pm
Forum: Technical/Operations
Topic: Take-offs and landings with 4 parallel runways
Replies: 13
Views: 1678

Re: Take-offs and landings with 4 parallel runways

rjsampson wrote:
: I have to give props to KATL for "runaround" taxi-ways at lower elevations than departure aircraft, .

you mean tunnel? for 41ft height (737) aircraft? or digging safety runaway area?

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by Armadillo1
Sat Nov 25, 2017 11:45 am
Forum: Technical/Operations
Topic: Airliner safety record stats for piston vs. turboprop vs jet
Replies: 5
Views: 1283

Re: Airliner safety record stats for piston vs. turboprop vs jet

I don’t have any statistics ready at hand, but I remember growing up in the 60s and airline crashes were a regular event. It seemed like there was about one a month, but I know it was not that many. And these were domestic (US) crashes: we got our news from a local paper that only covered monumenta...

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by Armadillo1
Fri Nov 24, 2017 6:41 pm
Forum: Technical/Operations
Topic: Hypothetical windowless airliner questions (technical)
Replies: 26
Views: 2242

Re: Hypothetical windowless airliner questions (technical)

i think 6+9 +ld3/45 can be put in fuselage 6.5-6.7m diameter cargo cant be totaly disregarded. passenger deck must be 70sm over fuselage bottom. it is unclear about sides of fuselage look at this patent for example https://www.google.com/patents/US20100187352 also, i dont think windows obstruct plac...

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by Armadillo1
Thu Nov 23, 2017 5:07 pm
Forum: Technical/Operations
Topic: 6 wheel bogey
Replies: 24
Views: 2692

Re: 6 wheel bogey

http://fotografersha.livejournal.com/636256.html
you can see wheels individualy.

big axis contains big fans for brakes
-->

it is only your fantasy about "non-separated wheels"
what you mean in word "wheel"?

more pics here
http://fotografersha.livejournal.com/636256.html
you can see wheels individualy.

big axis contains big fans for brakes

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by Armadillo1
Wed Nov 22, 2017 4:56 pm
Forum: Technical/Operations
Topic: 6 wheel bogey
Replies: 24
Views: 2692

Re: 6 wheel bogey

Image

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by Armadillo1
Thu Nov 16, 2017 3:30 am
Forum: Technical/Operations
Topic: Why is the A343 "underpowered"?
Replies: 100
Views: 14188

Re: Why is the A343 "underpowered"?

The IAE SuperFan would have been less powerful than the CFM56-5C series. IAE projected that the SuperFan would have delivered between 28000 lbf and 32000 lbf, compared to the 31200 lbf to 34000 lbf for the CFM. The biggest hit was fuel efficiency, not power. SuperFanned A340 must be an A330 class M...

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by Armadillo1
Fri Jun 02, 2017 9:00 pm
Forum: Technical/Operations
Topic: Why wasn't the 767-400 successful?
Replies: 3
Views: 747

Re: Why wasn't the 767-400 successful?

i'm afraid you thinks too optimistic about search here i found some topics: http://www.airliners.net/forum/viewtopic.php?t=213801 http://www.airliners.net/forum/viewtopic.php?t=235661 http://www.airliners.net/forum/viewtopic.php?t=261493 http://www.airliners.net/forum/viewtopic.php?t=580341 http://w...

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by Armadillo1
Mon May 15, 2017 11:32 pm
Forum: Civil Aviation
Topic: MC-21 Development Thread
Replies: 319
Views: 78109

Re: MC-21 To Roll Out On June 8

Any idea why the MS21-300 uses the PW1400G engine instead of the PD-14? PD-14 will be ready to fly in late summer. Why do not use already flying engine for test craft? Now anyone have any idea why winglets aren't in the orignal design? somebody says its all about 36m class C box. The wing very clos...

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by Armadillo1
Sat May 06, 2017 12:30 am
Forum: Technical/Operations
Topic: Wheel Loads
Replies: 11
Views: 1060

Re: Wheel Loads

359 and MD11ER must be have higher wheel load

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by Armadillo1
Sun Apr 30, 2017 1:39 pm
Forum: Civil Aviation
Topic: Will twinjets be replaced by monojets? Consequences on ETOPS and engine failure?
Replies: 55
Views: 7967

Re: Will twinjets be replaced by monojets? Consequences on ETOPS and engine failure?

less engine hours (in trade for more start cycles for aux), light and simple aux engine with less fuel efficiency, but less dead weight, and may be beter fuel efficiency (1 *100%trust on cruise versus 2*(50-60)%)

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by Armadillo1
Sat Apr 29, 2017 8:53 pm
Forum: Civil Aviation
Topic: Will twinjets be replaced by monojets? Consequences on ETOPS and engine failure?
Replies: 55
Views: 7967

Re: Will twinjets be replaced by monojets? Consequences on ETOPS and engine failure?

future aircraft will be with 1 cruise engine (unducted contra-prop may be), + 1 take-off engine (common turbofan), powering on take-off, landing and etops option only.

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by Armadillo1
Tue Apr 25, 2017 8:23 pm
Forum: Technical/Operations
Topic: Current record for aircraft with most flight hours/cycles?
Replies: 24
Views: 8130

Re: Current record for aircraft with most flight hours/cycles?

I hope this is not "too old" topic.

why 777 and a330 going to scrap so early comparing to 744 and MD11?

(from other old topic:
MD-11, Lufthansa Cargo, S/N 48413, L/N 488, D-ALCO, 139.224h 25.272cyc (31.12.2010)
)

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