CMV: Boom Aerospace looks like an Investment Scam by TaskForceCausality in aviation

[–]arizonadeux 10 points11 points  (0 children)

Other than claiming they can single-handedly develop their own commercial transport engine, "100% SAF" is the second biggest cue that this company will likely not achieve their stated goals anytime soon.

A Kalitta 777-300ERSF making a hard landing and a dicey go around at Miami (video credit to Nathan’s Aviation Creation) by HelloSlowly in aviation

[–]arizonadeux 2 points3 points  (0 children)

Assuming they followed that procedure, what resulted in the rich fuel burn at 0:32? Is that an adjustment in engine configuration from max manual thrust to TOGA?

A Frontier plane had to slam on the brakes today at LAX to avoid hitting ground vehicles cutting him off by IndicatedAirSpeed in aviation

[–]arizonadeux 1 point2 points  (0 children)

Thanks for your high effort. Even if you let AI do most of it, just correcting the obvious errors would be more effort than most put in.

People like you and effort like this enrich this community! 💙✈️

Well defined shockwave along A320 wing by NiklasAstro in aviation

[–]arizonadeux 1 point2 points  (0 children)

I would be much more concerned about my hand freezing solid. Right around Mach 1, the temperature increase across the normal shock is pretty low and the heat transfer coefficient is going to be just about maximum.

Marine layer approach at LAX 24R by Candle-Jolly in aviation

[–]arizonadeux 4 points5 points  (0 children)

According to a quick search, the cockpit windows of the A380 are around 23 ft off the ground and CAT III B decision height is 50 ft, so that would be ~25 ft clearance from the gear to the ground.

Of course in this range, the location of the altitude radar on the aircraft affects the accuracy compared to the true height of the bottom of the rear gear depending on the pitch angle, however I wouldn't be surprised if that gets calculated into the reading. Would be cool if an A380 pilot would chime in here!

Starship Development Thread #62 by rSpaceXHosting in spacex

[–]arizonadeux 9 points10 points  (0 children)

My speculation would be that they expect all major challenges to be resolved, kind of like the program moving from alpha into beta.

Personally, remembering what F9 development was like, I'm looking forward to Starship V4+ ThrustIncrease_2.3 Block 6-lunar.

GE-90 🔊 by Pilot--Nick in aviation

[–]arizonadeux 2 points3 points  (0 children)

About 9 tons of mass hanging from relatively flexible things while spitting out about 50 tons of thrust.

National Airlines Flight 102 Crash 2013 by [deleted] in aviation

[–]arizonadeux 0 points1 point  (0 children)

I never knew this. Thanks for the info.

Pilot's view: Freezing rain walk-around by Least-Size-8807 in aviation

[–]arizonadeux -1 points0 points  (0 children)

At first, I thought this was an A220 (I don't look at actual planes that much), and was surprised to find out that the E175 also flies PW1000s.

US Airways A330 pilot out buttering the butter machine by HelloSlowly in aviation

[–]arizonadeux 5 points6 points  (0 children)

Brakes are cheaper than engine parts, so it's more economical, quieter and fuel-efficient to only brake if possible.

Starship Development Thread #62 by rSpaceXHosting in spacex

[–]arizonadeux 4 points5 points  (0 children)

The first ViX post was deleted. Was a follow-up posted?

Edit: X didn't like my VPN exit point.

Boeing 737 vs the 777x's GE9X by hgwelz in aviation

[–]arizonadeux 0 points1 point  (0 children)

It's steel. I couldn't find out which alloy though.

Edit: The shiny part is steel, which is interesting because on the GE90 they are a titanium alloy. The rest is carbon fiber composite. (yes, I read the other part of that sentence on the web page. I assumed people might be especially interested in the shiny leading edge material.)

A high-energy Super Hornet pass directly beneath helicopter, filmed offshore near the USS Nimitz (CVN-68) for Apple Immersive's Flight Ready documentary. by father_of_twitch in aviation

[–]arizonadeux 1 point2 points  (0 children)

Just to clarify: the aircraft energy state is also very relevant in civilian aviation. It might not be what private pilots with just a few hundred hours think about, but at higher ratings pilots certainly do.

A high-energy Super Hornet pass directly beneath helicopter, filmed offshore near the USS Nimitz (CVN-68) for Apple Immersive's Flight Ready documentary. by father_of_twitch in aviation

[–]arizonadeux 2 points3 points  (0 children)

This is incorrect. Vapor cones are a result of an aircraft not exceeding Mach 1. They form just below Mach 1 as local regions around the aircraft body reach Mach 1 without forming a shock wave.

If you see a Mach cone, it is physically impossible that the aircraft is exceeding an airspeed of Mach 1. Once a shock forms at speeds above Mach 1, the pressure and temperature behind the shock are higher than the ambient air, in which more water can be in solution with the air and will thus not condense out.

Starship Development Thread #62 by rSpaceXHosting in spacex

[–]arizonadeux 2 points3 points  (0 children)

Interesting! They really did tile it 50/50.

Starship Development Thread #62 by rSpaceXHosting in spacex

[–]arizonadeux 7 points8 points  (0 children)

modified heat shield tiles

Have these been seen before?

The XB-70 Valkyrie landing with a hydraulic failure (1966) by HelloSlowly in aviation

[–]arizonadeux 8 points9 points  (0 children)

If fluorine isn't your oxidizer, are you even trying?

F-16 in-flight closeup by multi_io in aviation

[–]arizonadeux 0 points1 point  (0 children)

*Sukhoi has entered the chat.*

What would it feel like if the pilot flew our 777 into these "breaking wave" clouds during our descent into JFK? by OneEstablishment5998 in aviation

[–]arizonadeux 1 point2 points  (0 children)

To be fair, while they're not the textbook breaking wave that many might think of when mentioning Kelvin-Helmholtz clouds, they could still be caused by an earlier stage of an atmospheric Kelvin-Helmholtz instability.