The APU doesn’t have a hydraulic system. There are three redundant electric pumps however, and these can run off the battery. Regardless, I don’t believe there was any issue with the hydraulics as the plane was well controlled on the final approach.
There’s no ram air turbine on a 737.
There’s a placard in the cockpit with flap speed limits.
Certainly wouldn’t have hurt, but I don’t think it would have done that much.
From skybrary:
Most installations to date have used a maximum 70 knots bed-entry speed.
…and thats with gear down. I believe the Jeju plane was doing something like 130+ kts off the end of the runway.
EMAS requires a certain pressure to break through the surface. It’s designed for gear down overruns, not belly landings. I don’t think it’d do much if it were installed in this case.
From skybrary.aero:
Additional assumptions for all designs are that:
- an aircraft is still attempting to stop as the runway is exited
- reverse thrust / reverse pitch is not being used as the runway is exited
- the surface area leading to the EMAS bed has poor braking characteristics
- there is minimal or no structural damage to the landing gear
- there is no aircraft braking or use of reverse thrust / reverse pitch once an aircraft enters the EMAS
That penultimate point is key. It’s not designed for a no gear landing, or even damaged gear landing. It adds friction by the gear sinking into the materials.
I’m inclined to believe hydraulics were functioning based on the stabilized approach. The recent Azeri plane crash is what it looks like when you have no hydraulics. Granted, different planes, 737 NG has manual control, but it’d be difficult. Aside from a little shimmy the approach was good, especially considering they whipped a 180 after that first landing attempt on runway 01. The plane seemed to be well in control.
Also of note, there doesn’t appear to be any rudder applied on the approach, so one engine out seems to not be the case. They also tracked straight down the centerline so no asymmetric thrust. This would imply they either had both engines or no engines. I’m hesitant to believe both engines were out due to the speed they had after scraping down the runway, with the nose in the air.
I’m wondering if they got task saturated after the bird strike and quick go around 180, didn’t hear the “too low, gear” warning, then got spooked from the scrape and attempted a go around like that PIA crash. The initial tail strike happened way earlier on the runway, they floated for a long time after that initial contact.
Altogether very strange. Definitely a lot of Swiss cheese holes aligning in a terrible way. Very curious to see what’s recovered from the FDR and CVR.
737 NG alt flaps work up to 230 knots, well above landing speed. Landing with hydraulics out is the primary function of the alt flaps system. It’s really slow, however, so flaps 15 is typically the most they use.
This crash is very strange to me. No flaps (even if hydraulics fail, there’s electrical backup), no gear (there’s gravity extension backup), landed way down the runway (9000’ should have been plenty, gear up landing has been done in shorter distances)… what happened?
My guess at the moment: bird strike made the pilots panic, they didn’t ensure the plane was in the correct configuration when attempting the second landing, and tried to put it down soft and ended up going long?
What do I know though, I’m not a pilot, just a fan of disasters and flight simulation. Guess I’ll have to see what blancolirio has to say.
Edit: Juan Browne, aka Blancolirio on YouTube finally posted a video on this, probably some of the best insight we’ll get at this early stage.
Redacted. Frankly though Bandcamp has most of what I want and I don’t mind paying if it’s reasonable. I only turn to RED when I can’t find it on BC. Movies and TV though I’m 100% pirating regardless.
I like private trackers for music because what I’m looking for is niche and I’m a lossless whore. I like private trackers for movies/TV because I don’t have to use a VPN and I can find remuxes or tiny X265 rips to fill my Plex server with. I can’t remember the last time I used a public tracker.
Everyone knows their IFF is dogshit. There’s a surprising regularity to airlines being shot down, even before the war.
Which is crazy because all those airliners are squawking ADS-B while in the air, it’s not some complicated IFF system like you’d find on a fighter jet. Shit, I can pick up ADS-B when airliners fly over my house with a cheap ass SDR dongle and antenna.
comprehension - the action or capability of understanding something.
LLMs don’t understand anything they read.
The tail section separated on impact. There’s a couple videos, one from the outside showing people being rescued from the tail, and one from the inside from one of the survivors.
While doing some research on Sega Channel (I was a SNES kid) I found this article which has a lot of cool info.
While I think finding the plane will be a good thing, I don’t think it’ll bring us much closer to finding out what happened. The pilot likely cut the power to the flight data recorder when he powered the whole thing down as part of his “hijacking” process. Mentour Pilot has a great video on it on YouTube.
I just let that mission fail and got on with the rest of the game. I’ll do it next time I play the game though.
You’re wrong about it being fertilizer. The primary ingredient in S-PHOS 560 is aluminum phosphide, a fumigant.
Aluminum phosphide is a highly toxic, inorganic compound that’s used as a pesticide and fumigant. When exposed to air, it generates phosphine gas. (Not to be confused with phosgene, though.)
mildly toxic fumes
Phosphine is a highly toxic respiratory poison, and is immediately dangerous to life or health at 50 ppm.
Dunno where you’re pulling your info from but it’s wrong.
For me, STALKER is all about the atmosphere. They’ve nailed this much. A-Life was cool in the OGs but it wasn’t a complete necessity IMO. I never got into the big mods like gamma / anomaly so my perspective is skewed towards the vanilla experience. It always seemed to me, at least in vanilla, A-Life was only responsible for 10-15% of the encounters. An overwhelming majority was scripted.
While I do miss having to scope out routes with binoculars and ensure I wasn’t walking into any encounters, I don’t mind STALKER 2 being a bit of a walking simulator between missions / POIs. It is a bit empty feeling, but I’m alright with that for a first experience. It is hauntingly beautiful being so empty.
I also know I’m going to play it multiple times so I want to experience the improvement as patches come out. I think if you go in expecting anomaly/gamma you may come out disappointed, but I went in expecting another vanilla STALKER game and it exceeded my expectations. I’m 90 hours in and wrapping up some exploration before going into the “point of no return” endgame quest line, and I don’t regret any of what I experienced. There’s still so much I’ve yet to see. It is very much a worthy sequel.
Even with A-Life being busted at the moment I am enjoying the Zone very much. They nailed the atmosphere, sounds, and map, and that’s more than enough for me to get into it again. Already looking forward to playing it through another couple times, and of course the mods are going to be awesome. It’s not perfect but I think they did a great job all things considered.
I really don’t think it’s hydraulics - there are five pumps, two engine driven (including if it’s turned off and windmilling) and three electric (which can be battery driven) across three independent hydraulic circuits. The plane was also well controlled on approach which means they likely still had hydraulic flight surface control.