Safety Engineer, Dad, Husband, Pilot, Musician. Not necessarily in that order.
Ingenieur für funktionale Sicherheit, Vater, Ehemann, Pilot, Musiker. Nicht notwendigerweise in dieser Reihenfolge.
Then why do you think manufacturers still list these failure rates (to be sure, it is marked as a limit, not an actual rate)? I'm not being sarcastic or facetious, but genuinely curious. Do you know for certain that it doesn't happen regularly? During a scrub, these are the kinds of errors that are quietly corrected (althouhg the scrub log would list them), as they are during normal operation (also logged).
My theory is that they are being cautious and/or perhaps don't have any high-confidence data that is more recent.
The Leopard 2 was designed in the 70s. So for battlefield vehicle designs, that is not necessarily outdated. Most fighter aircraft in use today were desgigned in the 70s: Su-27, MiG-29, sure, we think they're old, but the F-16, F-15, F/A-18 are roughly the same age.
Bit error rates have barely improved since then. So the probability of an error whenr reading a substantial fraction of a disk is now higher than it was in 2013.
But as others have pointed out. RAID is not, and never was, a substitute for a backup. Its purpose is to increase availability. And if that is critical to your enterprise, these things need to be taken into account, and it may turn out that raidz1 with 8 TB disks is fine for your application, or it may not. For private use, I wouldn't fret. but make frequent backups.
This article was not about total disk failure, but about the much more insidious undetected bit error.
Let's do the math:
The error-reate of modern hard disks is usually on the order of one undetectable error per 1E15 bits read, see for example the data sheet for the Seagate Exos 7E10. An 8 TB disk contains 6.4E13 (usable) bits, so when reading the whole disk you have roughly a 1 in 16 chance of an unrecoverable read error. Which is ok with zfs if all disks are working. The error-correction will detect and correct it. But during a resilver it can be a big problem.
Bloody bigots (if true). This is a desperate measure by Ukraine, from which the UAF actually refrained as long as the US supported them!
Now they don't and they don't.
So give them the means for a meaningful defense (and offensive) on their own land, and they won't have to resort to strategic bombing. (Or droning, or cruise-missiling, or whatever it's called.)
I know these are different parts of the government, but still.
Don’t think Mike Johnson wants to help Ukraine though. This is just him stalling for time.
Yes, I think this is exactly what it is.
I really can't say. But I definitely think that the latest efforts by Johnson serve the explicit purpose of making the Discharge Petition less likely to succeed.
It's a trap. If the House changes the bill, it has to pass through the Senate again, which is not guaranteed. This talk is intended to distract from the Discharge Petition that was initiated by a Democrat to approve the Senate's bill. The hardliner Republicans, first and foremost Mike Johnson, have made it crystal clear through their actions that they have no intentions of helping Ukraine. The Democrats built golden bridges by agreeing to border security measures which many of them find abhorrent, and by agreeing to combine it with help for Israel, which some Democrats also don't like at the moment. And still Johnson flatly refused to even consider it.
Speaker Johnson says the right things ("No one wants Vladimir Putin to prevail. I’m of the opinion that he wouldn’t stop at Ukraine … and go all through the way through Europe. There is a right and wrong there, a good versus evil in my view and Ukraine is the victim here"), but his actions speak louder with a very different message.
That's just drawing from a special Presidential fund. I forgot the name. It is only a couple of billions in total, and must last for a year and for everything the administration wants to support without Congressional approval.
And if the $60 billion main aid package is intended for a year, then $300 million is the equivalent of less than 2 day's worth.
"A drop on a hot stone", as we say in Germany.
They did. What the UK, the US and Russia(!) should do in case Ukraine is attacked, is to "seek immediate UN Security Council action" to provide assistance. Which the UK and the US did. Of course, that didn't achieve anything because of the veto powers of the permanent UN Security council member Russia.
The US and the UK were signatories to the Budapest Memorandum (all three memoranda, actually, there are similar ones with Belarus and Kazakhstan), but it was never intended as a mutual assistance treaty in the way the North Atlantic Treaty (the "NAT" part of "NATO") is. It was just an agreement to respect each other's territorial integrity and not to use weapons against each other. It literally says:
The Russian Federation, [...] reaffirm their obligation to refrain from the threat or use of force against the territorial integrity or political independence of Ukraine, and that none of their weapons will ever be used against Ukraine except in self-defense or otherwise in accordance with the Charter of the United Nations.
The cop-out clause, of course, was "except in self-defence", which is what Russia implicitly claims, when saying that its citizens in Donbas, and thus Russia itself, were under attack by Ukraine. Playing the victim has always been the preferred way to justify a war of aggression.
The part about giving up the nuclear weapons is implicit in the preamble which welcomes Ukraine to the non-proliferation treaty as a non-nuclear-weapon state.
The whole Memorandum is also really short, literally fits on a single page: https://en.wikisource.org/wiki/Ukraine._Memorandum_on_Security_Assurances
Ukraine never had effective control of the nuclear warheads, although they had physical control and probably could have made them unusable, but not fire them without some serious reverse-engineering and possibly rebuilding large parts.
Yes, and that was codified by all signatories of the Budapest Memorandum. Russia tries to argue that it hasn't violated the terms because it only uses weapons against another signatory state "in self-defense", which is an agreed exception. Everyone knows it's ludicrous, but apparently even Russia does not want to be perceived as violating agreements.
The very concept of "NATO expands" is misleading. NATO doesn't decide to expand. Countries that had previously been neutral apply for membership. Contrast that to how "Russkiy Mir" expands.
Thanks. I'm not too good with Cyrillic letters.
Tragic, if true, but you need to work on your texts and captions. HIMARS is rocket artillery, not an "anti-aircraft missile defense system": High-Mobility Artillery Rocket System. And what is the caption in the video? PC30? BCY?
Saying it hasn't been built in 30 years is a bit misleading. Although the base Il-76 airframes may be that old, the latest substantial avionics upgrade (designated A-50U) is less than 15 years old or so (first delivery in 2011), which isn't too bad for military and aircraft systems. A lot of the E-3 equipment is older. That is not to say it is more capable than the E-3, it probably isn't, but I'd say a fully functioning A-50U should not be underestimated. It's even got toilets! Then again, it is also not clear to me that any "U" models are currently airworthy.
Also, for some comedic relief, there is a "Combat Approved" episode about the A-50. "Combat approved" is a youtube channel making unbelievably (though unintentionally) funny parodies of documentaries. Everything Russian is the absolute best, the old Russian stuff is decades ahead of anything the west is currently developing, etc. The impressive thing that they can say all this with a straight face. They have lots more of these hilarious episodes, plus dozens of short clips of aircraft landing and taking off, and some live-firing exercises.
Yamaha SY77 split voices: Sustain-pedal to affect only one Element?
As the title says, I am new to the Yamaha SY77, and I'm making a split voice with piano on the left and sax on the right, and I want the sustain footswitch only to affect the piano. (How) can this be done? It was trivial on the DX7 II-D with a Split-mode Performance, but I can't seem to find a setting on the SY77.
Having programmed the DX7 (II) for a long time, and having read the SY77 manual, I had no big trouble finding my way around the 77, but this one baffles me. I would consider it pretty vanilla to be able to sustain piano chords with the left hand and and then play unsustained lead lines with the right.
In most respects, real-time-controller-wise, the DX7 II seemed more flexible, even though undoubtedly the SY's synth engine is much more capable.
(Also posted to reddit, since the community is still a lot larger, but I'm willing to give lemmy a chance ...)
Different "geometries" for same disk model?
I know that for decades now, hard disks don't really reveal their actual internal geometry (which is complicated anyway, since inner cylinders may have fewer sectors than outer cylinders, etc.), and present fictional geometries to satisfy legacy software, but I found it weird anyway.
I have a ZFS raidz2 NAS which originally consisted of 8x2 TB SAS disks and is now in the process of being live-upgraded to 8x4 TB (change disks one by one, resilver, change, resilver, etc ...)
I now have four of the disks replaced, and in NetBSD they all report different geometries. They all report the exact same number of total blocks, so it's not actually an issue, but still strange.
sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST4000NM0023, GE11> disk fixed
sd0: 3726 GB, 330809 cyl, 10 head, 2362 sec, 512 bytes/sect x 7814037168 sectors
sd1 at scsibus0 target 1 lun 0: <SEAGATE, ST4000NM0023, GE11> disk fixed
sd1: 3726 GB, 348145 cyl, 10 head, 2244 sec, 512 bytes/sect x 7814037168 se
Jeppesen Shop Down? Does anyone know why?
Hi,
for a couple of days, now, shop.jeppesen.com (directly linked from jeppesen.com) has been down. The first days it showed a banner that it was "down due to technical issues", but since yesterday it just shows a banner saying "Jeppesen. A Boeing Company".
Is anyone else here able to reach the shop?
Is there any information about why, and how long this is going to last?
I'm quite seriously confused and bewildered that the market leader for aeronautical charts could just "close shop" like that. The only thing I could imagine that would take so long is an attack where data could have been modified, including backups, requiring manual validation of all data.
Dell T420 mainboard in T320? Differences? Heatsink? Air Baffle?
I have two Dell T320 servers, which work great. But I'd like to have some more CPU power, so think about upgrading to the T420. It is almost the same, except that on the T420 main board, which seems to be otherwise the identical PCB, the second CPU socket is actually installed. (In the T320 it's just empty soldering points.) My question is: Is the air baffle the same, or do I need a new one if I swap out the main board? I am aware that I will need a second CPU heatsink.
Thanks.
Five hours of AvGeek Gold: The D. P. Davies Interviews with the Royal Aeronautical Society
AUDIO: The D. P. Davies Interview on his service in the Fleet Air Arm and the Handling Squadron during the 1940s. “The test pilots’ test pilot”, former CAA Chief Test Pilot D. P. Davies talks about his early career first training and then serving in the wartime Fleet Air Arm, including reminiscence...
A four-part series of the interview with one of the greatest test pilots, D. P. Davies, conducted in 1992 for the Royal Aeronautical Society. Almost five hours of avgeek gold. (The other three parts should be listed at the bottom.)
D. P. Davies is also the author of the seminal work about flying large airliners, "Handling the Big Jets".
Although less well known, he is undoubtedly on the same level as Chuck Yeager and Bob Hoover.
The level of expertise and adventure, combined with the British humour and understatement, makes this immensely enjoyable to listen to, despite the less-than-perfect audio quality.
Flugtag Walldorf EDGX dieses Wochenende!
Kann selbst leider nicht da sein, aber es wird bestimmt großartig mit Kunstflug, Modellflug, Fallschirmsprung, etc.
Flugtag in Porta Westfalica. Video!
Ein kurzer Zusammenschnitt vom Flugplatzfest 2023 am Flugplatz Vennebeck (Porta Westfalica). Es gab Kunstflug (mit und ohne Motor), Rundflüge für alle (Motorflugzeuge, Segelflugzeuge, Motorsegler, Hubschrauber), Aussteller mit Elektroautos, eine Hüpfburg, und natürlich genug zu Essen und zu trinken ...
I finished editing the video of our aerodrome festival on August 12 and 13 this year. Enjoy and comment!
Flugplatzfest Porta Westfalica 2023.
Ein kurzer Zusammenschnitt vom Flugplatzfest 2023 am Flugplatz Vennebeck (Porta Westfalica). Es gab Kunstflug (mit und ohne Motor), Rundflüge für alle (Motorflugzeuge, Segelflugzeuge, Motorsegler, Hubschrauber), Aussteller mit Elektroautos, eine Hüpfburg, und natürlich genug zu Essen und zu trinken ...
Ein kurzes Video unseres Flugtags in Porta Westfalica EDVY. Gerne kommentieren und fragen.
Waffel-Fly-In in Leer-Papenburg EDWF
Ein paar Highlights von einem Nachmittag in Leer-Papenburg. Es war "Waffel-Fly-In", deswegen waren einige Kaffeeflieger da, aber auch eine Pilatus PC-12, die aus der Schweiz angereist kam. Some highlights from an afternoon at Leer-Papenburg airfield. It was a "Waffle Fly-In", and so a few weekend wa...
Leider war ich nicht selbst mit dem Flugzeug da, sondern nur kurz zum Kaffeetrinken und zugucken. Aber wie immer nette Gespräche mit anderen Piloten, unter anderem mit dem Eigentümer der kleinen Morane, ein Typ, den ich auch ein paar Jahre geflogen bin.
Außerdem der Versuch, peertube etwas populärer zu machen, den youtube-"Ersatz" im Fediversum.
Plakat / Flyer zum Tag der offenen Tür Porta Westfalica 12. und 13. August 2023
Nachdem ich die Ankündigung schon vor ein paar Tagen gepostet hatte, gibt es jetzt den offiziellen Flyer.
"Flugtag" in Porta Westfalica on August 12 and 13
Tag der offenen Tür 12. und 13. August 2023 Fotos von früheren Tagen der offenen Tür: KONTAKT PORTA – EDVY Tel: +49 5731 - 76 30 70 E-Mail: [email protected] OPS: +49 5731 - 76 30 69 OPS: +49 171 - 3680591 PORTA RADIO 130.640 MHz LANDEBAHN / RUNWAY 05 - Asphalt - Dim …
For anyone in the region, there are two days of exhibition, sightseeing flights for the public, aerobatic displays and information about the local clubs, food&drink, RC model planes and more.
Location is the public airfield Porta Westfalica EDVY near Hannover.
GELÖST: siehe Kommentar. Sichtanflugkarten Deutschland in Garmin G3X Touch?
Moin,
ich versuche auf der Garmin-Website gerade rauszufinden, ob es für das G3X Touch DFS Visual Operations Charts gibt. Explizit steht das nirgendwo. Es gibt die ICAO VFR Charts (enroute), und Garmin "Flite Chart" Instrumentananflugkarten und "Jeppesen View" für die Jeppesen-Karten, aber DFS VFR-Anflugkarten?
Ich hab alle unserere Geräte registriert, und sehe auch alle Angebote zu den einzelnen Datenbanken und Bundles, sehe aber nichts zu den VFR-Karten (außer wie gesagt enroute ICAO-Charts).
Hat jemand hier auch eine G3X Touch-Installation und nutzt solche Karten auf dem Gerät, oder weiß, ob's die gibt? Das wäre hilfreich zu wissen. Ich hab derweil auch schon direkt bei Garmin angefragt.
Schnurgerade. Moderne Autopiloten sind großartig!
Die von SkyDemon aufgezeichnete Flugroute unseres gestrigen Aus-Flugs von Porta Westfalica nach Rendsburg/Schachtholm. Der voll gekoppelte Autopilot GFC 500, vom Flugplan im G3X Touch gesteuert, zieht die Bahn wie mit dem Lineal gezogen.
Ich fliege auf Rundflügen total gern selbst, aber auf Streckenflügen, wo auch das Ankommen wichtig ist, erleichtert ein guter Autopilot die Sache, und es bleibt mehr Zeit die Landschaft zu genießen. Immer ein Ohr am Funk, und regelmäßiger Blick auf die Instrumente bleiben selbstverständlich.
Fliegt ihr lieber von Hand, oder mit Autopilot, oder seid ihr wie ich in der Gruppe "kommt drauf an"?
Dümmer-Rundflug ab Porta Westfalica mit der PA-28-161 "Cadet"
Ein kurzer Rundflug ab Porta Westfalica EDVY, rund um den Dümmer, mit einer jungen Familie.
Ein Rundflug mit einer jungen Familie, die Omas Haus, ihr neues Zuhause und ihren Liebliengs-Ausflugs-See mal von oben sehen wollten.
Noch ein Flugzeug, mit dem ich Flugbegeisterte mitnehmen kann.
Diesmal nur ein kleiner Zweisitzer, aber dafür in erreichbarer Nähe von meinem Arbeitsplatz (der weit weg ist von meinem Wohnort), so dass ich mit meinen Kollegen die Welt von oben bewundern kann. Vorige Woche habe ich zusammen mit dem Charter-Checkout auch gleich meine Auffrischungsschulung zur Verlängerung der SEP(land)-Klassenberechtigung durchgeführt.
Zeigt eure Flugzeuge, oder die eures Clubs / eurer Schule
Our Club's PA-28-161 Cadet on final approach to Runway 23 at its home airfield Porta Westfalica EDVY
Ich fang mal mit unserem Schulflugzeug an, einer Piper PA-28-161 "Cadet", hier im Endanflug. Die Cadet ist eine "Zwischen"-Variante des PA-28 Basismodells "Cherokee", mit dem neueren sich verjüngenden Flügel und dem altem Rumpf mit nur zwei Fenstern pro Seite, angetrieben von einem 160 PS-Lycoming O-320. Es hat den "Steig"-Propeller für gute Startleistung auf Kosten von ein paar Knoten Reisegeschwindigkeit.
Antwortet direkt hier, oder macht einen eigenen Post auf.
PSA: in EASA country, your "flight review" can be done earlier than you may think.
According to EU regulation 1178/2011, the only condition is that you have at least 12 takeoffs and landing and 12 hours (of which 6 as PIC) and one hour total flight time ("block time") of "refresher training" within the last 12 months before the end of the validity of the single-engine piston and/or touring motor glider class ratings.
As far as I can tell, the one hour of refresher training doesn't even have to be one contiguous flight, but can be spread out over multiple flights.
Only a proficiency check (i. e. checkride with official examiner, which is required if you don't have the prerequisite flight time) needs to be performed within the last 3 months before expiry.
Auffrischungsschulung kann lange vor Ablauf der Klassenberechtigung durchgeführt werden!
Was viele (einschließlich mancher Fluglehrer) nicht wissen: der Schulflug mit Fluglehrer zur Verlängerung der Klassenberechtigungen für SEP und TMG kann, genau wie die 12 erforderlichen Flugstunden, Starts und Landungen, irgendwann innerhalb der letzten 12 Monate vor Ablauf durchgeführt werden. Wenn ich das richtig lese, muss es nicht einmal ein zusammenhängender Flug sein, sondern nur zusammen mindestens eine Stunde Gesamtflugzeit (Blockzeit) mit FI oder CRI.
Eine Prüfung ("Befähigungsüberprüfung"), die man stattdessen machen kann (bzw. muss, wenn man die erforderlichen Flugstunden nicht aufbringt), muss innerhalb der letzten 3 Monate durchgeführt werden, daher vermutlich die Verwirrung.
Bei mir waren's nur ein paar Tage vor Beginn der letzten drei Monate, aber genug, um den Fluglehrer in meinem Verein ins Grübeln zu bringen:
Quelle: [EU Richtlinie 1178/2011](https://eur-lex.europa.eu/legal-content/DE/TX
Where can I see the server version in jerboa?
I'm sure many have that problem right now (e. g. feddit.de is on 0.17.4), and I understand the developer's choice not to support old server versions anymore, so when I choose to stay with Jerboa 0.0.34 for the time being, I'd at least like to see when my instance upgrades to 0.18. I can see it at the bottom of the Communities list in the desktop browser, but haven't found it in the app, yet.
149 keys (plus 37 of the out-of-shot melodica) waiting to be worked on.
Just before the start of our band rehearsal for a worship evening in a few weeks.