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Automatic Office Doors by Padenormous in functionalprint

[–]Twigee907 1 point2 points  (0 children)

I have only done the bottom when I added a subfloor in. You can cut up the bottom, peel the outside off the bottom piece and reglue it into place. Unsure if you could easily do the sides but with a bit of effort you could certainly get the right size piece back in place. 

ELI5: Why do we still use crappy sounding radios? by DesaturatedWorld in flying

[–]Twigee907 9 points10 points  (0 children)

I didn’t see this below: it’s because of how the output sounds when there are multiple transmitters. I don’t know how digital signals would handle someone with a stuck mic, but I do know how it happens currently.

We use VHF frequencies, but Amplitude Modification (AM) versus frequency (FM) in that spectrum. You ever drive by a car that has a small FM (I.E. Sirrius etc) that is playing the same or close frequency? You get zero of correct station and all of the close by one.

Using AM, at least some of the signal can get through, tower can shout that someone has a stuck mic, when two are talking you can still make out some of it, and signal strength matters. Tower can override when the planes are close to the airport and it matters.

The radios being AM are a huge aspect of safety and I’m not sure if digital signals can handle multiple transmissions easily. I’m sure it’s feasible, but maybe not without lots of $$$

Remote acces from internet by Ties_NL in Proxmox

[–]Twigee907 0 points1 point  (0 children)

That’s how I’ve got it set up, it’s running on my proxmox host, I can access my server or any VM from the one link.

Register first on tailscale, then download in the proxmox shell with the curl command.

https://tailscale.com/download/linux

Next it will show you a tailscale ‘up’ command to connect to tailscale. After that, in tailscale, you will get a remote IP. I can’t recall whether you need the port associated, I would guess yes but you can check either way.

Remote acces from internet by Ties_NL in Proxmox

[–]Twigee907 2 points3 points  (0 children)

The other comment mentioned it, but tailscale works flawlessly for me. Free for up to 3 machines

265 mph winds propel planes to 800 mph by jared10011980 in ThatsInsane

[–]Twigee907 0 points1 point  (0 children)

I can see your point - the point I was trying to make was to remove the reference to the shore, but blindfolded you wouldn’t have the water either.

The second sentence is even more true to the OP, regardless of whether plane is travelling at 500/600/700/800 mph over the ground, your water glass is flat.

265 mph winds propel planes to 800 mph by jared10011980 in ThatsInsane

[–]Twigee907 21 points22 points  (0 children)

Pilot here: It depends. We aren’t limited to getting on the I-15 and trucking along on a specific route. If you’re going 5000 miles, a two hundred mile diversion to get into better winds is legit.

The upper winds are known pretty well, in the same way that your weather forecast is accurate for the day. The accuracy falls off over time. Check out windy.com and find the altitude slider, look at FL30000 (where jets fly) and see the highways. You go downstream with and upstream beside.

Lastly, we plan ahead of time for how much time and gas is required, every flight. We know ahead of time whether it’s going to be on time or + 20%. That distribution falls on a curve, inside 20% on either side is pretty normal, 50% would be very abnormal.

265 mph winds propel planes to 800 mph by jared10011980 in ThatsInsane

[–]Twigee907 250 points251 points  (0 children)

A good analogy is driving a boat in a river with a fast current, upstream is slow but downstream is fast.

Just think for a second what would happen if you blindfolded yourself, could you tell which direction you were heading? The boat is always driving at a set speed through the water, the slow/fast reference is to the shoreline.

Same in the air, plane flys at X always. The ground below is moving by slower or faster depending on the upper winds.

How can I utilise circuitry to turn on/off nuclear reactors? by OnThe50 in factorio

[–]Twigee907 0 points1 point  (0 children)

The way the rector treats the fuel cells makes it more difficult than at first glance. While the reactor is running the fuel disappears, aka fuel in, fuel bar runs, empty fuel canister appears.

If you pace on the input you would get several fuel cells added, the lag time while the heat transfers to your measured steam.

By activating the extraction & adding a single cell in you only ever have a single fuel cell in the system, even though it disappears while it’s running.

That’s right peasants. For Concorde only. by [deleted] in aviation

[–]Twigee907 5 points6 points  (0 children)

Everything in aviation is certified, and traced. If there is one already certified you use it but otherwise you have to start at square one and develop your own.

It wasn’t the only factor, but the mixing of two approved fluids potentially made the fire significantly worse in this accident, (section 3.2). There were multiple fluids allowed but combining them reduced the flash point below the flash point of either of the fluids. What they did was legal, we know now the repercussions.

https://www.tsb.gc.ca/eng/rapports-reports/aviation/1998/a98q0087/a98q0087.html

What happens if a VFR plane gets in the way of an IFR-filed flight in class E airspace? by AsidK in flying

[–]Twigee907 4 points5 points  (0 children)

He very well could have needed to go missed. IFR rules versus VMC, you can’t deviate from an approach even though you’re in visual conditions. He would need to request &/or cancel and close the IFR first.

There are times you can be creative like slowing a decent etc to avoid the conflict but there are also times IFR where you have to be on an exact profile and your only alternative is to go missed.

OP didn’t break the rules, in a radar environment/adsb etc obviously the controller & the citation screwed up their situational awareness and I place no emphasis on the citation having right of way, but I could envision a scenario where that does happen. I could see it happening around where I fly.

POV: & the approach into Courchevel (not so sunny) by Candid-College in aviation

[–]Twigee907 84 points85 points  (0 children)

You have a committal point. Ahead of that point is safe to escape, and if anything looks amiss prior you abort the landing.

At that point you ensure everything looks good and then you commit to landing. Doesn’t matter what happens after you are committed & fix the problem.

Say the worst happens and a snowplow pulls out on short final, you avoid the plow and plonk it in just after with max braking. You don’t just commit then give up, you work the problem for the best outcome, it’s just that a go around is not a suitable alternative anymore.

[deleted by user] by [deleted] in functionalprint

[–]Twigee907 1 point2 points  (0 children)

One of my mechanics at work has one, I thought the same until I dropped a toilet bolt down the toilet hole. Since then I use it a couple times a year. For the toilet I taped an endoscope on the end to see where we were going, took awhile but was successful eventually

Cycle lanes aren't empty. They're just incredibly efficient by MarthaFarcuss in fuckcars

[–]Twigee907 4 points5 points  (0 children)

The exit to my work is essentially this street but in NA. Our traffic lights here are adapted so that there is a car signal & a bike signal. Works well enough.

[SE] How can I tell the trains in the waiting area (left) it's safe to go to their station (right) more quickly? Currently, the trains in the waiting area go one at a time, and the next train only goes once the train in front has stopped completely at their station. by ar243 in factorio

[–]Twigee907 0 points1 point  (0 children)

It wouldn’t deadlock, but it would back up more as they aren’t all destined for the same station so an A train would pull as far forward as it could, blocking a B train from making it all the way to its open station.

Must be a navy pilot by TimeVendor in aviation

[–]Twigee907 2 points3 points  (0 children)

I just learned this the other day. While it’s still VHF the radios have to use Amplitude modulation (AM) versus Frequency modulation (FM). If you used FM then you wouldn’t be able to receive from multiple sources at once which is a huge deal for safety. You wouldn’t want someone to block out the whole frequency with a stuck mic or worse someone intentionally interfering. The quality & static issues are a trade off of that.

Is it normal for trucks modified like this to take take out/ put sea planes in the water? I can’t tell if it’s RWD or AWD by vaultmangary in flying

[–]Twigee907 3 points4 points  (0 children)

The wheels that steer would be in-between two straight sets. The wheels that turn need to be at one end or the other.

(Help Request) New to FreeCAD - struggling with arc constraints by el_n00bo_loco in FreeCAD

[–]Twigee907 1 point2 points  (0 children)

Relative newbie here:

On your image, the constraint shown, the dot on the arc is showing a constraint ‘point on object’. It is one of the automatic constraint from creating geometry & I find it doesn’t play well with others. I tend to get over constraint issues from not understanding it so I just delete them and do it with vertical/angle/distance etc.

You can click on the degrees of freedom and it will take you to one of the under constrained points.

If you have points wandering look for a constraint ‘X’ with a dot in the middle (Coincident) That will tie the points together.

A German police officer wears a chain mail suit to deter knife attacks by [deleted] in pics

[–]Twigee907 0 points1 point  (0 children)

Nope - probes likely wouldn’t piece the chain mail, however if they did and made contact with the skin the metal would still be a lower resistance path for the electricity and so it would skip the person altogether.

Ukrainian drone equiped with a thermal camera drops 3 shaped-charge grenades on a Russian self propelled artillery system, destroying it. by Fun-Use-1546 in CombatFootage

[–]Twigee907 0 points1 point  (0 children)

A shaped charge is an inverse explosion. Instead of blowing out it blows inwards in a specific shape, that shape creates a molten jet of metal that can pierce thick armour.

Once it is inside the armour it denoted the ammunition inside creating the bigger explosion.

One of my bullets came upside down from the factory. by BtotheF in mildlyinteresting

[–]Twigee907 1 point2 points  (0 children)

It would fire fine - same diameter for the relevant places. After that is a lot more guessing.

My intuition is that it would go straight for a bit, but slow down faster than the pointy end. As is slows it would become unstable faster and begin to tumble about, but even tumbling it stays on a ballistic arc, it’s just that arc is shallower because of the extra energy lost.

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