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NTP66
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Postby NTP66 » Thu Jun 03, 2021 4:14 pm

So tickets would be a few hundred more than they are now? Heh…

tifosi77
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Postby tifosi77 » Fri Jun 04, 2021 8:37 pm

I have a hard time understanding the idea of a "boom-less" supersonic aircraft. That isn't really a technology problem.

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Postby Shyster » Fri Jun 04, 2021 8:50 pm

It appears to be a matter of carefully designing the shape of the aircraft in order to control the pressure waves coming off. This CNET article describes it some:

https://www.cnet.com/news/supersonic-without-the-boom/

It's not really "boomless," but NASA believes that you can make it much quieter to the point where the noise at ground level would be more like a car door slamming than a shattering kaboom. This strikes me as something that might now be possible because we can now build computers powerful enough to model the airflows.

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Postby Shyster » Tue Jun 08, 2021 12:06 am

Over the weekend, an American Airlines Boeing MAX 8 was forced to abort its takeoff roll at Argyle International Airport in Saint Vincent and the Grenadines after it hit what appears to be a whole flock of birds. That had to be pretty close to V1 for how fast they were moving, but it stopped in time. According to reports, the hot brakes melted the fuse plugs on the four main-gear tires, so they all deflated and needed to be replaced. There were dents and other damage on the housing for the right-hand engine, but the engine itself may be OK. Pretty neat how fast that thing can slam on the brakes.


tifosi77
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Postby tifosi77 » Tue Jun 08, 2021 12:30 am

It appears to be a matter of carefully designing the shape of the aircraft in order to control the pressure waves coming off. This CNET article describes it some:

https://www.cnet.com/news/supersonic-without-the-boom/

It's not really "boomless," but NASA believes that you can make it much quieter to the point where the noise at ground level would be more like a car door slamming than a shattering kaboom. This strikes me as something that might now be possible because we can now build computers powerful enough to model the airflows.
This is really interesting, thanks for sharing it. I've heard exactly 2 sonic booms in my life: First was the Space Shuttle recovering at Edwards, sort of a pop-pop over Santa Monica when I was at Bay Cities Italian deli, just barely audible over traffic. The other time was an F-16 at the Edwards air show (with Chuck Yeager in the pit), 30,000 feet over the field, and that was loud enough to be properly starling.

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Postby tifosi77 » Tue Jun 08, 2021 12:31 am

And I will say a near-V1 incident is my biggest fear in flying.

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Postby tifosi77 » Tue Jun 15, 2021 4:05 pm

So Chesley Sullenberger has been nominated for International Civil Aviation Organization ambassador.

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Postby Shyster » Thu Jun 17, 2021 5:43 pm

Boeing has delivered the first MAX 8-200 to Ryanair, which Ryanair is preferring to call the 737-8200. The aircraft adds an extra pair of exit doors to the MAX-8 version in order to increase the number of passengers carried. Commercial aircraft have what is called an "exit limit," which is based on the requirement that everyone on board be able to deplane in I believe 90 seconds in case of an emergency. The maximum number of passengers you can carry in a certain aircraft is set by the exit limit. Adding two more exit doors to the base MAX-8 increases the limit and lets Ryanair pack in even more passengers like sardines in a can.

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Postby Shyster » Mon Jun 28, 2021 9:34 pm

An official announcement will come tomorrow, but it looks like United is about to announce a large order for both Airbus and Boeing models. Industry sources are saying up to 200 737 MAX aircraft and up to 70 Airbus A321neoXLR aircraft. United already has orders on the books for the MAX 8, 9, and 10 and the A321neoXLR (which is the super-long-range version of the A321). The MAX is being delivered now, while the first A321neoXLR are scheduled for 2024.

United's existing narrowbody fleet comprises the 737-700, -800, and -900 and the A319 and A320. The two Airbus models in particular are nearing 20 years in age and are now some of the oldest narrbowbodies being flown by the US Big 3. I'm thinking more 737 MAX models to replace those smaller aircraft, and the additional A321XLR models will fully replace United's 757 fleet and add additional longer-range capacity for trans-Atlantic and South American international flights.

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Postby Shyster » Tue Jun 29, 2021 6:43 pm

United order confirmed. The 70 A321neo are not specified as to whether they are any of the long-range models, but it's sounding like they are the standard-range version. The 200 MAX break down to 50 MAX 8s and 150 MAX 10s. It looks like United wants to upsize its fleet; the CEO said in announcing the order that United isn't interested in aircraft with fewer than 150 seats, so United's existing 150+ A319s and 737-700s will all get replaced by substantially larger aircraft. The MAX 10s will take at least a couple years to arrive because the first test flight for the MAX 10 only took place last week. United now has 250 of the MAX 10 on order, so they will probably become the world's largest operator of that type. Something like half of the 50 MAX 8s, however, are "white tail" aircraft that have already been built and were waiting for a new owner after the original ordering party canceled or went bankrupt. That means United should be able to get those in the fleet and flying pretty quickly.

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Postby DigitalGypsy66 » Fri Jul 02, 2021 11:05 am


NTP66
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Postby NTP66 » Fri Jul 02, 2021 11:06 am

**** scary, and great that the pilots were rescued.

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Postby RonnieFranchise » Fri Jul 02, 2021 2:15 pm

If you find yourself in fhe Greater Beaver Falls Area you should stop by Air Heritage and check it out. Happened to think of it because Thunderpig just flew over.

They own and restore old mostly military aircraft.

https://airheritage.org/

tifosi77
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Postby tifosi77 » Sat Jul 03, 2021 12:35 am

That HNL ditch is insane. ATC was dealing with another flight from the same operator, and they kept responding to the radio traffic for the mishap aircraft. It increased the ATC workload uneccessarily.

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Postby tifosi77 » Sat Jul 03, 2021 12:44 am

Also, when you are an aircraft pilot and you transmit "Notify the Coast Guard", that's a bad day.

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Postby shafnutz05 » Sat Jul 03, 2021 7:32 am

Also, when you are an aircraft pilot and you transmit "Notify the Coast Guard", that's a bad day.
:thumb: :lol:

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Postby dodint » Tue Jul 13, 2021 10:07 am


shafnutz05
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Postby shafnutz05 » Tue Jul 13, 2021 12:23 pm

LOL.

Everything about this page is perfect. Four separate incidents in the span of ten days. The guy's face. The comments.

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Postby shafnutz05 » Tue Jul 13, 2021 12:24 pm

:lol: :lol:
I am the airport mgr at KONL..I spent 3 days with this fellow..He landed gear up the day he bought it for 100 plus grand..in CA...Then ran off the runway in NM..wiping out landing lights and left flap..He repaired it..the we were his next stop..5 attempts to land..last one lost it on landing..creamed two runway lights..His story was..Airplane sat for 2 years..when he got to us he had already damaged the hull...I fed him..housed him..and gave him tools and parts..We got his CG corected for his pilot weight..He replaced the trim motor..ad the first was inop..hence the 4 attempts to land..He was way aft..outside the envelope..Luccky to be alive..lucky...His trip to test everything was not much better..his trim was reversed..wiped out right main and brake assembly..Feds talked to him..We advised him to truck the plane..he refused all efforts..Snuck out Saturday..did not pay his bill..made it all the way home..over the lake..his engine quit..He deadsticked it back to a nearby airport..broke the nosewheel.Fixed it again..added fuel..Now ran all the tanks dry..sucked all the fiberglass trash into the fuel system..Took off halfway across the lake..it quit again..Nosegear was locked down..hull was scraped and damaged..lanned dead stick in the lake..nose gear down..Fliped over..lucky to have gotten out..Airplane is at the bottom of Lake MI..Nice guy..bit of a temper..hellbent on gethomeitis...No insurance..lost it all because of god knows why...It was like watching 2 trains heading towards one another..nothing you could do..Even the FAA..after verifying his credentials and barely current currency.They.said to let..him go..Sad day indeed..

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Postby dodint » Tue Jul 13, 2021 12:29 pm

Yeah, there is a ton to unpack.

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Postby Shyster » Tue Jul 13, 2021 7:48 pm

I think you should definitely win some sort of award for buying a seaplane (the Seawind 3000 is amphibious) and then managing to both: (1) land it on a runway with the gear up; and (2) land it on water with the gear down. It's like, congratulations, you literally **** that up in every possible way.

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Postby Shyster » Tue Jul 13, 2021 7:56 pm

Not as big as United's announcement, but it looks like Delta has a deal in place for adding 36 used aircraft to its fleet. Seven of the not-new-but-new-to-Delta aircraft are A350-900s that are coming from South American airline LATAM, which Delta partially owns and which is undergoing a bankruptcy proceeding. LATAM decided to eliminate its A350 fleet in favor of retaining 787s. The other 29 aircraft are newer 737-900ERs coming from Indonesia'a Lion Air, which is also shedding aircraft due to financial difficulties.

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Postby MR25 » Tue Jul 13, 2021 8:33 pm


shafnutz05
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Postby shafnutz05 » Wed Jul 14, 2021 12:46 pm


NTP66
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Postby NTP66 » Sat Jul 17, 2021 7:12 am

The FAA has ordered safety checks on all 9,300 Boeing 737 aircraft for a failure that could cause cabin oxygen levels to drop dangerously low
Also saw a separate article on the FAA wanting more checks on a new 787 issue.

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