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Hi folks. Let's try to stay on the original topic, which is the technology aimed at preventing runway incursions. Thanks. :)

Apparently, CPDLC is part of the DataComm initiative by the FAA: https://www.faa.gov/air_traffic/technology/DataComm

I do know there are published study manuals for the entrance exam (which I linked in another thread), but I would not call that cheating. The question is: Were Snow's answers correct? The exam question pool is most likely changed periodically.

"The Federal Aviation Administration has announced that as part of the February 2023 Safety Call to Action to improve runway safety in the United States, it will install a runway incursion device at 74 airports nationwide. On March 19, the FAA disclosed that it would be rolling out a...

Your question was answered here: https://bobistheoilguy.com/forums/threads/can-differential-fluid-viscosity-affect-torsen-lsd-engagement.393733/#post-7191507

In a real Torsen, there is no engagement or disengagement of anything. Torsen basically means torque sensing via the gearing. The extra gearing is always in mesh.

2012 4X4 and it came with the vehicle.

@zeroptzero I have a Torsen ifferential in my Frontier and have never observed any differences between grades 75W85, 75W90, or 75W110.

I would suspect the hardware will be updateable and re-configureable with extra rack spaces for modern avionics, as expressed here in an older article...

That's my guess as well, unless Boeing sells off the Phantom Works division which had been discussed in the past. In https://www.boeing.com/defense/phantom-works#programs , one of the pics in "Fixed Wing" sure looks like an F-47 concept.

Apparently, in January of this year, there were dual Inertial Reference Unit (IRU) failures on a Boeing 787 (UA613) that disconnected the autopilot, and for 12 minutes a series of flight "excursions" occurred...

Picture 1 Shipley lathe; we had those lathes in HS Metal Shop classes. I think I loved working with the lathes more than any other machine.

What type/make of aircraft is it? I'd say it is a 787-10 Dreamliner by Boeing.

NASA screens astronauts for both physical toughness and psychological stability, so I don't think anyone is going to go "gaga" over an extended space stay.

My understanding is that there were other astronauts already on the Space Station from Crew #X doing experiments when Williams and Wilmore arrived, so they were not alone. See 0.05 of this video...

I am not sure what BFF's means here, but having read that both astronauts are close to their families, I would surmise they would want to spend as much time with their families as possible. My concern is the osteoporosis-like symptoms that result from long-term space travel. Muscle atrophy can...

Williams and Wilmore return to Earth and the effects of reaclimation. About a 10-minute read but interesting. https://www.salon.com/2025/03/15/nasa-astronauts-to-return-home-after-major-delay-heres-what-that-time-in-space-does-to-the-body/

Item 2 is the Viscosity Index Improver (VII), Item 3 is an Anti-wear/EP agent, I would expect the base oils to be a mixture of Group II-IV types. Items 4 through 6 are anti-oxidant agents; about what I would expect from a 75W90 GL-5 gear lube.

Something's wrong since D6 has a 6.0 cSt viscosity at 100C, whereas the lube in question is a GL-5 of 15 cSt. This is a bad reference on Redline's part, assuming the search terms were correct.

They are instructions on how to properly quote others' text and how to clean up your comments so they are readable.