wizzlebippi

The 737 max is equipped with a stick pusher designed to keep the aircraft from encountering full aerodynamic stall. Based on the articles I've read, the aircraft had problematic airspeed indications, implying that Boeing can fire their pusher at a minimum airspeed. As a transport category aircraft, the 737 max should have at least 3 air data sources, allowing a malfunctioning system to be voted offline. There should be a red override/disconnect button on both pilot's controls that if held would stop the pusher from firing. The aircraft may have been very nose down once the pusher was overridden, and the crew may have not recovered properly (throttles idle, speedbrakes extended, pull to 1.5-2g).

So do I. But @SQUAD seems to think that no news in the past 2.5 months is keeping us informed, so they've earned it.

Since we're supposed to be reading between the lines for console news, does an update every 3 months mean we can expect an update in 2 weeks?

https://en.m.wikipedia.org/wiki/Rocket_Engine_Test_Facility Vacuum test facilities exist, just maybe not for something the size of a raptor. They could test their scale model, and validate the flight worthy engine with a computer model.

While both water and air are fluids, water is significantly denser. Even if the aircraft is facing the tsunami, fast moving water could easily exceed the dynamic pressure the aircraft is designed for. Best bet is getting away from windows and off the ground floor.

@SQUAD Since you haven't mentioned console development since the second patch was released, I can only assume there is none occurring. As much as I like the game, seeing all these improvements for PC and knowing my Xbox will be stuck on v1. 2x forever makes me not want to play anymore.

A common repair on aircraft, assuming the mis-drilled hole poses no structural danger, would be to plug the hole with a rivet and sealant. If there is a structural issue, some sort of doubler would be applied. Mis-drilled holes happen, and the worst thing a manufacturer can do is punish the worker who made the mistake. That leads to things like this at best.

@SQUAD Is any of this, including the expansion, coming to consoles?

Since my aging laptop decided it no longer needed a screen, I've been playing on Xbox. Seeing all the improvements pc is getting is nice, but consoles don't have making history, or even a clear future. It's really hard to justify a new machine for one game, even if I have nearly a thousand hours in it, when something I already have will play ksp. Are consoles going to get making history and these updates? Not looking for a date or schedule, only a yes/no answer.

Because the process of compressing air slows the air down. The compression/deceleration process starts at the intake on all jet engines, slowing it to less than 0.3 Mach before it reaches the compressor. This is because below 0.3 Mach, air can't be aerodynamically compressed. From there, multiple compressor stages mechanically work the air. These can be numerous axial rotor/stator stages, or on some engines, a few axial stages and a large centrifugal stage before the burners. The idea is the same, something speeds air up and forces it into something stationary to increase pressure. On a ramjet, the intake air is fast enough that aerodynamic compression is enough to operate the engine. No moving parts needed.

At 15:02, I think I'm close to the max of what an xbox can accomplish. Didn't bother to look at the total part count, but those vectors sound like an evil horn.

The fuselage is one awkward airfoil. On conventional aircraft, the fuselage is usually assumed to produce as much lift as the wing area it covers. Assume the chord is the length of the craft, and the area is what you see in your top down view. The easiest way to calculate area on that is to break it down into simpler shapes.

It doesn't even need to be in space. Next time you fly on an airliner, have a navigation app open. Your phone will drop GPS shortly into the takeoff roll because it senses excessive acceleration. For entertainment, if you get the chance to fly on something smaller and slower like a skyhawk, open a navigation app and watch it try to figure out where you are.

I might be a savvy engineer, so I'll take a crack at this. Engines work by using a heat source to cause a working fluid to expand as a means of transferring energy from fuel into mechanical energy. The problem is most working fluids don't hold much thermal energy at useful temperatures, limiting the energy output and efficiency of the engine. The solutions are either increasing the operating temperature or increasing the mass of the working fluid. Increasing operating temperature usually isn't an option, at least not by enough to make a difference, due to material properties and cooling. Increasing the size of the engine can dramatically increase energy output by increasing the volume of working fluid, but at the expense of efficiency due to difficulty heating all the working fluid. Compressing the working fluid increases the mass being heated while keeping the volume being heated reasonable, allowing more chemical energy to be captured as heat, resulting in increased energy output and efficiency of the engine.

The problem is transferring gasses to and from your blood relies entirely on pressure. If the pressure of oxygen in the air is less than the pressure of oxygen in your blood, then oxygen moves from your blood to the air in your lungs. Above about 35,000 ft, the ambient pressure is low enough, that the time of useful consciousness becomes constant. This is because there isn't enough air pressure to keep enough oxygen in your blood for you to remain conscious. It then becomes a race of you using oxygen vs. oxygen and other gasses escaping in your lungs. Holding your breath will not stop this because breathing also relies on relative pressure. If you have an FAA medical certificate, you can take a chamber ride for free at the Civil Aerospace Medical Institute.

And now it magically works again. I'm not sure what I did to disable the reaction wheels and today they work again.

I have a ship with an mk1-2 command pod that for some reason has had it's reaction wheels disabled. It has both power and a pilot, and the reaction wheel mode is set to normal. RCS works, but I already ran out of monoprop. How do I dock this ship with the station to salvage its science.

It's not just chord length, but speed as well. Calculate your expected takeoff and cruise Reynolds Numbers. There's a transition around 250-300k, above which airfoil shape matters a lot more. As a point of reference, RC aircraft operate around this transition.

How big will this glider be? If you want to build something large, a sheet or two of foil won't do it, but at the right scale it could get the job done. Also, for small enough wings, the shape of the airfoil doesn't matter as much because even airfoils behave like flat plates.

The engine exhaust also needs to have the correct amount of soot and water vapor for contrails to form. Stealth aircraft have contrail detectors to help them avoid throttle settings that could help the enemy spot them.

I think you're underestimating the cost of testing on earth. The cost of man hours spent designing away test interference has likely greatly exceeded the cost of launching a cube sat. NASA Eagleworks probably spent at least a million just on having independent test experts analyze their rig and findings. Bench testing, or basically all that has been done with the Cannae drive, is inherently flawed. There is always interference from the test setup, despite how carefully designed it may be. It takes a lot of time and money do design out flaws, and even then we can only account for known sources of error. The only way to truely eliminate error due to the test setup, it to put the Cannae drive in space. Yes, if it breaks we may never know exactly why, but if it produces the same amount of thrust in space, we will finally know it's not test error.

Magnetrons have been around for decades and are pretty well understood. Some hardening will be necessary to ensure it survives the harsh conditions in space, but that shouldn't be too difficult. Since the Cannae drive is such a simple system, there aren't many ways for it to fail. If there was to be unexpected behavior from the drive, something should have presented its self by now on the test stand. I'm only advocating a prototype, not equipping a commercial satellite with Cannae drive station keeping thrusters.

Do we really need to be able to explain the thrust it produces for it to have benefits? Proving the Cannae drive works in orbit is worth billions. Satelites could maintain orbit near indefinitely because fuel is no longer a concern, and safely deorbit or rendezvous with a craft for repairs/upgrades. Besides, it won't be the first time something is used when science has an incomplete understanding of how it works.

As far as I know, it doesn't have as much to do with temperature as pressure. A hydrogen molecule is small enough to slip through the crystal structure of the metal tank that contains it, which is why hydrogen is so hard to contain. Occasionally, the hydrogen gets trapped in the interstitial space. When force is applied to the crystal, the atoms that make up the crystal can realign around the hydrogen molecule, creating a defect. Eventually, these defects can cause cracks or failure of the tank. https://en.m.wikipedia.org/wiki/Hydrogen_embrittlement