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New 3 Engines Aircraft  
User currently offlineDellatorre From Brazil, joined May 2000, 1088 posts, RR: 2
Posted (13 years 10 months 3 weeks 1 day 11 hours ago) and read 1501 times:

Do you think it is possible that either boeing or airbus start prducing new 3 engines airplanes? I will really miss them!!!!! In 15 years the number of these aircrafts flying will be almost none. That´s too bad!!!!

6 replies: All unread, jump to last
 
User currently offlineCstarU From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 10 months 3 weeks 1 day 11 hours ago) and read 1428 times:

The next three engine commercial aircraft will be a BWB (Blended-Wing Body).

User currently offlinePrebennorholm From Denmark, joined Mar 2000, 6385 posts, RR: 54
Reply 2, posted (13 years 10 months 3 weeks 1 day 6 hours ago) and read 1391 times:

15 years?
In just 2-3 years time 3 engined planes will be very very rare birds as passenger carriers. MD-10s and MD-11s will carry on as cargo planes into an unknown future.
To know why they disappear you must realise why they were built. They were built in a time when twins were not allowed to fly any substantial distances over water. Today ETOPS twins cross all oceans.
No really new tri-jet has been designed during the last 30 years, and it will never happen again. The blended wing-fuselage design will not happen as commercial transport because such a design will have too narrow balance limits for practical use. The B-2 bomber plane will be the only example, until this planet comes to sense and bomber planes goes completely out of fashion.
Best regards, Preben Norholm



Always keep your number of landings equal to your number of take-offs, Preben Norholm
User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 10 months 3 weeks 1 day 3 hours ago) and read 1374 times:

The 767 could be modified with 3 engines with the L-1011's tail would be a good choice.

User currently offlineHush-Kit From Germany, joined Sep 2000, 124 posts, RR: 0
Reply 4, posted (13 years 10 months 3 weeks 1 day 3 hours ago) and read 1349 times:

I guess triple-powered jets will be withdrawn from passenger service within this decade, but...
have an eye on Russia and the formely soviet states,
the TU-154 I guess will still be in service within the next
10 maybe 15 years (but mainly within Russia and
neighboring states), because not a Boeing jet neither
an Airbus jet is designed to serve these (poor)
far - away russian airstripes ; the Tu-154 's gear
is designed so, and: to serve these poor Russian
airstripes you MUST have a jet with "engine's up"
to make sure that whirled up rocks and dirt will
not cause any engine trouble.



User currently offlineRIX From United States of America, joined Aug 2000, 1787 posts, RR: 1
Reply 5, posted (13 years 10 months 3 weeks 1 day ago) and read 1332 times:

Is ETOPS the only reason new 3 engines aircraft not to appear? Then there would be no new quads either. I think there are some other (probably technical) reasons not to build new 3-jets. As far as I didn't hear of them I believe a new 3-jet can be theoretically designed in future - say, something between twin 777 and quad A3XX.

... Not only Tu154 will be in passenger service in the former USSR within next 10-15 years but also Yak40 and Yak42 - the newest of them. About Tu154 designed to serve poor airstrips: about 15 years ago one landed on non-concrete strip covered by snow which was so thick that no car could get to the aircraft to take the passengers!


User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 6, posted (13 years 10 months 3 weeks 21 hours ago) and read 1304 times:

"Too narrow balance limits for practical use"??

Just b/c an aircraft doesn't have a tail does not mean its CG range is narrow.

Boeing is designing the blended wing body as a commerical transport; acceptable CG range is intrinsic to the design.

V/R
EssentialPowr


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