---

1.媒體來源:
Reuters


2.記者署名:
By Mike Stone
November 11, 2023 12:33 AM GMT+8


3.完整新聞標題:
US Air Force's new B-21 Raider "flying wing" bomber takes first flight -
Reuters witness


4.完整新聞內文:
Nov 10 (Reuters) - The U.S. Air Force's B-21 "Raider" bomber shaped like a
flying wing took its first flight on Friday, the next step in rolling out a
new fleet of long-range nuclear-capable stealth bombers built by Northrop
Grumman (NOC.N), according to a Reuters witness.

The B-21 left Northrop's facility at the Air Force's Plant 42 in Palmdale,
California, at sunrise on Friday offering the first unscripted look at the
new bomber which has been developed under strict security.

The plane took off at 6:51 a.m., according to a Reuters witness. Air Force
leaders did not publicize the B-21's first flight, but about three dozens
aviation enthusiasts and amateur photographers gathered around Plant 42 on
Friday hoping to see the bomber take to the skies, according to the Reuters
witness.

The B-21, which carries the same "flying wing" shape of its predecessor, the
B-2, will be able to deliver both conventional and nuclear weapons around the
world using long-range and mid-air refueling capabilities.

The aircraft are projected to cost approximately $550 million each in 2010
dollars, or about $750 million in today's inflation-adjusted dollars.
However, the Air Force has kept other price information classified, "which
makes validating the proposed cost difficult," the Congressional Research
Service said in a 2021 report.

The Air Force plans to buy at least 100 of the planes and begin to replace
B-1 and B-2 bombers. The B-1 costs about $60,000 per hour to operate and the
B-2 costs about $65,000 per hour, according to Pentagon data.

Ann Stefanek, an Air Force spokesperson said, "The B-21 Raider is in flight
testing. Flight testing is a critical step in the test campaign managed by
the Air Force Test Center and 412th Test Wings B-21 Combined Test Force."

Six test aircraft are being produced now. They are being built on the same
line, using the tools, processes and technicians that will build the
production aircraft.

Northrop beat out a team comprised of Boeing (BA.N) and Lockheed Martin
(LMT.N) when it won the 2015 contract to make the bomber. Engine-maker Pratt
& Whitney (RTX.N), Collins Aerospace, GKN Aerospace, BAE Systems (BAES.L) and
Spirit Aerosystems (SPR.N) are among the more than 400 suppliers in 40 states.

The B-21 was publicly unveiled in December 2022, but anticipation surrounding
its first flight has been building for years.

In 2019, one top Air Force general hinted that the bomber could fly as early
as December 2021, but the service later pushed that date to mid-2022. In
early 2022, the Air Force further delayed it until 2023.

The B-21 program is in the Engineering and Manufacturing Development Phase
and is on track to deliver aircraft to Ellsworth Air Force Base in the
mid-2020s, according to the Air Force.

Northrop is calling the plane a sixth generation aircraft given its ability
to connect to other aircraft and easily integrate future weapons into its
systems architecture.

The B-21 also features more durable, stealth-enabling low observable surface
material that is expected to require less maintenance and decrease operations
costs and downtime.


5.完整新聞連結 (或短網址)不可用YAHOO、LINE、MSN等轉載媒體
https://tinyurl.com/2re8hncr


6.備註:
大致翻譯:

2022年12月公開亮相。

全文翻譯:
https://tinyurl.com/mwcerjf5


--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 125.228.250.124 (臺灣)
※ 作者: meteor260 2023-11-11 06:44:45
※ 文章代碼(AID): #1bJh9Xfo (Gossiping)
※ 文章網址: https://www.ptt.cc/bbs/Gossiping/M.1699656289.A.A72.html

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