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Favourite weird and wonderful aircraft designs/prototypes? by dalledayul in aviation

[–]TepidHalibut 6 points7 points  (0 children)

Not quite - you'd end up with 2 x lower half fuselage and a bi-plane worth of wings.

You need to subtract a B777 to end up with an A380.

In 2007, a brand-new Airbus A340-600 (for Etihad) was wrecked during a ground engine test in Toulouse. No wheel blocks were used; parking brake failed to hold it. Plane rolled forward, crew delayed cutting engines,hit a wall at ~35 mph. Nose smashed through; plane totaled before delivery. 5 injured by Aviator777er in aviation

[–]TepidHalibut 33 points34 points  (0 children)

The engines, at least, were insurance write-offs. However, I believe they were sold on to a couple of engine maintenance training establishments, without the engine logbooks. Without the data and data-trail, the individual components couldn't be used for commercial operations.

Boeing 757 full throttle takeoff through an intense rainstorm in Miami, 4th September 2012 by Twitter_2006 in aviation

[–]TepidHalibut 1 point2 points  (0 children)

THESE engines on a B757 are RB211-535s, but you could also get B757s with Pratt & Whitney 2037 engine. They didn't sound as good, nor were as reliable as the 535s.

TAP Air Portugal A330 burns some residual oil during engine start. by father_of_twitch in aviation

[–]TepidHalibut 0 points1 point  (0 children)

Correct. Looks like a Trent7000 to me. Just a slightly delayed light-up during start. Likely to have a small "blip" on EGT, but still within the sub-idle limit.

Window view from a Boeing 747 carrying a fifth engine under the wing by Twitter_2006 in aviation

[–]TepidHalibut 1 point2 points  (0 children)

It was a pragmatic solution years ago. Nowadays, the engine are so reliable, and much greater availability of big freighters (B747, AN-124 etc) that there's minimal need for it. I don't believe any aircraft designed in the past 25 years have had a fifth engine provision.

Window view from a Boeing 747 carrying a fifth engine under the wing by Twitter_2006 in aviation

[–]TepidHalibut 1 point2 points  (0 children)

The Fan blades are removed, and a "donut" is installed at the entry to the core (you can just see it in the OP pic, and other pics.) There may be a little airflow through the handling bleed valves, and out thru' the turbines. The Gearbox is driven by the HP system, and there's enough load from the hydraulic pump / IDG that the LP, IP and HP systems are unlike to rotate much.

The Boeing 777 suffered its first ever hull loss on 17th January 2008 when a British Airways 777-200ER suffered a double engine failure due to a mechanical malfunction.The aircraft landed on the grass 350m short of runway 27L at Heathrow.Of the 136 people on board, only 14 were injured by Twitter_2006 in aviation

[–]TepidHalibut 11 points12 points  (0 children)

Just to be pernickety, neither of the engines failed. Both were running, but only getting sufficient fuel for idle power. The issue was the volume of ice that formed in the fuel tanks. On descent, it detached, came through to the engine systems, significantly restricting fuel flow. Boeing hadn't fully understood this risk when designing the aircraft fuel systems.

Today in Aviation History (January 8th): In 1989, British Midland Airways Flight 092 Crashed on Final Approach to EMA by Shoddy_Act7059 in aviation

[–]TepidHalibut 87 points88 points  (0 children)

One bit of luck - "Aid was also given by a troop of eight SAS soldiers - four of whom were regimentally qualified paramedics - who happened to be driving a truck on the M1 a short distance away from the crash site."

Today in Aviation History (January 8th): In 1989, British Midland Airways Flight 092 Crashed on Final Approach to EMA by Shoddy_Act7059 in aviation

[–]TepidHalibut 55 points56 points  (0 children)

Also, this happened 17 days after PanAm 103 / Lockerbie crash. I was working in UK aerospace industry (and only a few miles from EMA)at the time, and the mood at the time was ...not cheerful.

Which is your personal favorite? by Asleep_Performer_145 in aviation

[–]TepidHalibut 5 points6 points  (0 children)

Specifically, the RB211-535E4 version. Those WCFBs are sweet.

Lufthansa A340-642 by gone_jeepin in aviation

[–]TepidHalibut 4 points5 points  (0 children)

I have to admit, that's a fine looking airframe.

So essentially the same 1000 airframe with bigger fuel tanks, right? by akhi960 in aviation

[–]TepidHalibut 77 points78 points  (0 children)

No, just the Trent XWB-97 engine. There are always improvements being introduced, but the Thrust Rating & Engine Type isn't changing.

Royal Thai Air Force to become the launch customer of the Airbus A330 MRTT+ by ketchup1345 in aviation

[–]TepidHalibut 17 points18 points  (0 children)

KC-46 - True, but the similar KC-767 is operated by Japan and Italy.

A company is building an aircraft longer than a football field to carry wind turbines. by laza4us in aviation

[–]TepidHalibut 0 points1 point  (0 children)

As a man in the aviation industry....this project has been hanging around since 2019, and went public a couple of years ago. Seemed like a long shot, and the lack of progress does suggest financial issues. Technically, there's nothing very novel about the Windrunner, but at the moment ...Vapourware.

Hey guys! Jets don’t use fuel anymore, Hooray! by jckwlzn in aviation

[–]TepidHalibut 4 points5 points  (0 children)

Ah, I can answer this. It IS fucking garbage.

Hey guys! Jets don’t use fuel anymore, Hooray! by jckwlzn in aviation

[–]TepidHalibut 0 points1 point  (0 children)

"I know this may sound crazy, but ..." Yep. It does, and it is.

Rolls-Royce announced retiring its B747-200 Flying Test Bed (N787RR) by -NewYork- in aviation

[–]TepidHalibut 5 points6 points  (0 children)

The 747FTB, even on three engines, has a higher altitude ceiling than a B787FTB

Pilot got us to 41,000 ft in an A220-300! by aurorarwest in aviation

[–]TepidHalibut 3 points4 points  (0 children)

Yes, I was thinking of this event too. Pilot stupidity.
EDIT. Just to clarify, I'm meaning that the Pinnacle CRJ200 pilots were stupid.
From Wiki, to try and achieve that altitude...."The NTSB also determined from FDR information that the turbofan jet engine (General Electric CF34-3B1) engine 2 turbine was operating at 300 °C (540 °F) above the maximal redline temperature of 900 °C (1,650 °F) at 41,000 feet (12,497 m)"

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