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Sonic Cruiser And Conventional Plane?  
User currently offlineBrons2 From United States of America, joined Sep 2001, 3035 posts, RR: 4
Posted (13 years 10 months 3 weeks 5 days 7 hours ago) and read 2266 times:

Boeing plans to complete a fourth and final round of Sonic Cruiser meetings with airlines around September before seeking authority from the Boeing board to offer the high-speed airliner as early as October.

Sonic Cruiser vice-president Walt Gillette says failure to secure board approval by year-end would not be "a show stopper". But he adds: "The sooner we can make it, the quicker we can focus on one area, such as size or range." However, to stay within reach of a 2008 entry-into-service target date, the programme does not officially need to be launched until 2004, he says.

Technology features for the design are due to be downselected next year, while firm configuration is expected to be frozen in late 2004 or early 2005. The company is midway through a third round of airline presentations, which it expects to complete by the middle of this month. The fourth and final round, Boeing hopes, is set to take place in "late summer or early fall", says Gillette.

Boeing says airlines are being shown the baseline, aft-wing Sonic Cruiser design as well as a mid-wing concept and the "reference" aircraft, a 250-seat advanced technology conventional design dubbed "Yellowstone" (Flight International, 2-8 July).

The mid-wing concept eliminates the forward canard which, although essential to the stability of the low-drag configuration of the aft-wing concept, poses issues for jetway compatibility.

"One of the trades we are running is taking the canard off, and taking that aft wing and moving it forward," says Gillette. The longer design requires horizontal tail and fuselage contouring to achieve transonic cruise. This would pose manufacturing issues and add to the complexity of stretching the aircraft's design.

"It is a highly evolved trade study, and we'll keep going until we have a clear winner or we validate that the aft-wing design is clearly the best," he adds.

Continued interest is also being shown in the conventional design, which Gillette insists is still strictly a reference. "We are still applying technology against a conventional airframe because we have to know the benefits." If sufficient market interest continues in the reference design, Gillette does not rule out the possibility of Boeing launching the conventional model as a hi-tech running mate to the Sonic Cruiser.

The aircraft could be the basis for a 757/767 replacement, but is not the focus for the current product development effort. However, co-development is "possible" says Gillette, adding: "We will build the aircraft the market wants."

Boeing is also tackling the question of whether to launch two Sonic Cruiser family members at once or separate their introduction by six months.

Two initial family members are being considered - a lower empty-weight model with a 12,200km (6,600nm) range and a heavier variant with the ability to fly a longer transpacific range of up to 15,500km.

Firings, if well done, are good for employee morale.
4 replies: All unread, jump to last
User currently offlineZizou From Australia, joined Oct 2000, 1536 posts, RR: 4
Reply 1, posted (13 years 10 months 3 weeks 5 days 7 hours ago) and read 2234 times:

I personally hope that this aircraft is never built, as it looks very ugly. Even the A380 looks a 100 times better.  Smile

User currently offlineGreg From United Kingdom, joined May 2005, 0 posts, RR: 0
Reply 2, posted (13 years 10 months 3 weeks 5 days 5 hours ago) and read 2197 times:

You would be in the vast minority in regard to that comment!

User currently offlineBoeing nut From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 10 months 3 weeks 5 days 1 hour ago) and read 2169 times:

Well, regardless of how you think the aircraft looks, it just doesn't matter what we think. I respect ones opinion of a particular aircrafts looks, but the airlines don't care what the airplane looks like. They will buy it if it makes money for them. The Shorts 360 is a perfect example of that!!!!  Laugh out loud

One other note; "Yellowstone" is a code name for technology being used on the Sonic Cruiser. Not the Sonic Cruiser itself.

User currently offlineBobcat From United States of America, joined Jun 2007, 0 posts, RR: 0
Reply 4, posted (13 years 10 months 3 weeks 5 days 1 hour ago) and read 2150 times:

just how much time will the Sonic Cruiser save, flying from JFK-NRT or JFK-LHR?

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