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Old December 27th, 2015, 05:02 PM   #2081
Scrapernab2
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Quote:
Originally Posted by mcarling View Post
There will never be another new three-engine airliner -- at least as long as airliners are powered by jet engines. Twins have better efficiency and lower maintenance costs.
I agree. Just trying to find a balance between the twin and four engine ideals.

Two 777 engines plus a small booster engine in the tail (thrust vectoring, instead of a large tail rudder?) for fully loaded takeoffs seems reasonable. The wings could be lighter and the third engine could just idle at cruising speed, making it almost as efficient as a regular twin plane. I guess the question isn't new:
https://www.google.com/search?q=747+...5_jbNWSboFM%3A

https://www.quora.com/Can-a-Boeing-7...nstead-of-four

Last edited by Scrapernab2; January 3rd, 2016 at 10:02 PM.
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Old December 27th, 2015, 06:47 PM   #2082
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There have been a few aircraft with thrusting APUs. Not much, if any, weight is saved in the wings. Going forward, the main purpose of an APU is to produce electricity. In the past, they also needed to produce bleed air and hydraulic pressure. All of that can be done more efficiently if they don't need to produce thrust.
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Old December 28th, 2015, 01:37 AM   #2083
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Trijets are a maintenance nightmare, so that's one more reason you won't see them in teh future.
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Old December 28th, 2015, 05:08 AM   #2084
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747-8 by mrsyclone, on Flickr



Private Boeing 747-8 by spotterlifestyle, on Flickr
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Old December 29th, 2015, 02:07 PM   #2085
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Old December 30th, 2015, 12:37 AM   #2086
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Here are 2 variants of Cathay Pacific Cargo | Boeing 747 !!

Which is you favourite ? -8F or -400F?

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Old January 1st, 2016, 07:03 PM   #2087
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Quote:
Originally Posted by Oasis-Bangkok View Post
That is one ridiculously expensive private jet ..... WOW
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Old January 2nd, 2016, 08:43 AM   #2088
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MASKargo B747-400F (9M-MPS)



Last active commercial B747SP in the world (EP-IAC)
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Old January 2nd, 2016, 10:44 AM   #2089
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Quote:
Originally Posted by Buffalomatt1027 View Post
That is one ridiculously expensive private jet ..... WOW
... and compared to a Gulfstream it's slow, has crappy air, can't overfly the commercial traffic, and can operate from relatively few airports.

If they were the same price, I would rather have a Gulfstream G650ER (or the forthcoming G600) than any BBJ or ACJ.
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Old January 2nd, 2016, 06:41 PM   #2090
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Saudi govt. are not taking up their 748 BBJ its on sale in the US, and the 9th BBJ is for Brunei Sultan.

Kuwait 1
Saudi Arabia 1 NTU
Qatar 3
Abu Dhabi 1
Oman 2
Brunei 1
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Old January 2nd, 2016, 08:19 PM   #2091
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Quote:
Originally Posted by Scrapernab2 View Post
Just trying to find a balance between the twin and four engine ideals.[/url]
There is really nothing to balance. Two engines are more efficient and have higher dispatch reliability. With 115K lbs thrust engines in operation for about a decade (and having been tested on the test bench at 125K) and the 777-9X needing only 105K lbs thrust, it's safe to say that any plausibly sized airliner that might be developed in the next decade would be a twin.

Watch as business jets make the transition from two engines to one over the next few decades.
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Old January 3rd, 2016, 10:12 AM   #2092
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Cargolux B747-8F (LX-VCB)
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Old January 5th, 2016, 03:28 AM   #2093
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Love the KLM and Asiana photos.
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Old January 5th, 2016, 05:40 AM   #2094
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Saw this earlier... not just one, but two Qantas Boeing 747-400s parked right next to each other at San Francisco International Airport. The registrations are:

- VH-OJS, "Longreach"
- VH-OEI, "Ceduna" (B747-400ER)

Eh, I thought Qantas only does one flight a day (actually 5x weekly) between San Francisco and Sydney, but why did I see two planes parked as if they were "kissing" nose-to-nose?


IMG_8066 by Anthony Nachor, on Flickr
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Old January 5th, 2016, 01:58 PM   #2095
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Love those Qantas jets
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Old January 5th, 2016, 10:08 PM   #2096
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Judging from Flightradar it was VH-OJS that went tech, delaying the flight back by one day. Creating this opportunity for spotting 2 Qantas 747s at the same time in San Fransisco.

Why they are kissing nose to nose? It looks like that this are just 2 regular parking spots that are simply designed like this in this corner.
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Old January 6th, 2016, 02:41 PM   #2097
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Quote:
Originally Posted by fieldsofdreams View Post
Saw this earlier... not just one, but two Qantas Boeing 747-400s parked right next to each other at San Francisco International Airport. The registrations are: - VH-OJS, "Longreach" - VH-OEI, "Ceduna" (B747-400ER) Eh, I thought Qantas only does one flight a day (actually 5x weekly) between San Francisco and Sydney, but why did I see two planes parked as if they were "kissing" nose-to-nose? IMG_8066 by Anthony Nachor, on Flickr
VHOJS went tech and is now on her way to JNB with a 5th pod attached. VHOJU is currently stranded in JNB.

Here's a QANTAS press release
http://www.qantasnewsroom.com.au/roo...on-to-a-jumbo/
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Old January 6th, 2016, 04:14 PM   #2098
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Old January 6th, 2016, 09:04 PM   #2099
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+40


Picture of the Qantas Quintuple 747 going to Johannesburg.



https://twitter.com/Qantas/status/684569738752561152
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Old January 7th, 2016, 06:53 AM   #2100
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HL7637 Korean Air LN1529 Rolled out of FAL

HL7637 Korean Air Lines Boeing 747-8B5 - C/N 40909 / LN 1529 by Woodys Aeroimages, on Flickr

LN 1519 was moved to flight line to sacerfice its engines for either LN 1528 or 1529 for Korean.

Transaero 747-8i C/N 42416 / LN 1519 by Woodys Aeroimages, on Flickr

LN 1523 sits on the taxi way as they move LN1519 to the flight line.

Transaero Airlines Boeing 747-8 - C/N 42417 / LN by Woodys Aeroimages, on Flickr

747-8i LN1519 & LN1523 by Woodys Aeroimages, on Flickr

747-8i LN1519 & LN1523 by Woodys Aeroimages, on Flickr
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