dzeleski

Atkinson cycle engines are really only beneficial at lower loads. This is why hybrids typically have a true Atkinson cycle engine, but even those engines are no longer really Atkinson engines anymore. Modern engines are mostly Otto with a mock Atkinson variable cam timing that puts them into a similar state. Any of those engines immediately move into Otto mode the second you request any power. The reason this doesnt really work for most piston airplanes is because we are operating at much higher loads then a car is at 60mph down the highway. We regularly operate at 65-100% of available power. Your car probably uses 10-20% of its peak power cruising down the highway.

Damn I hope she is doing better! One thing to note is that if you have a high quality credit card used for travel many of them have pretty good travel protection built in but you need to use the card for the entire trip. https://www.nerdwallet.com/article/travel/amex-platinum-travel-insurance-guide

Called my installer yesterday about this. Im scheduled for mid June to have all of my -11 servos removed and replaced. I have not had any issues with my AP and my install has about 250 hours on it. My IFR re cert is due in June anyways so its no big deal as I knew it was gonna need to go away for a bit. My G5s are running 8.02, will most likely get updated to 8.20 during the process as well but ill find out as we get closer to the date.

I watch YT every single day, I don’t have cable anymore. There is just as much crap if not more of it on cable tv. YouTube has plenty of highly education channels. Practical Engineering, Steve Morris Engines, SmarterEveryDay, element14, Adam Savages Tested, Flitetest, veritasium, EverydayAstronaut, Scott Manley, Andrew Huang, Rob Scallon, etc. This type of content doesn’t exist on cable tv.

I havent used a GTN in several years now but if they did update it to work like that is a great change.

I guess my workflow is a bit different because I run an Avidyne. I dont need to do any of those things as it will auto tune to ground based nav aids, ID them, set the inbound course, and switch to the correct mode based on the approach type. Some of those things happen prior to activating and some happen after, but its all automatic, including when I go missed. As far as being careful about going direct to the FAF, yes you do need to understand that and generally I dont use direct unless im told to go direct. What I do is activate the leg, and just maintain the heading given until it captures automatically (assuming the AP is configured correctly). And because I set a leg of the approach as the active leg it assumes the approach is activated.

It actually is all in the AFMS, youll need to cross reference that with your Navigators guide as well because in NAV mode it is also commanding inputs.

I never use vectors to final mode. It removes all of the fixes of the approach and if anything about that approach changes you need to reload it. So in short I never use it even when being vectored. Ill set one of the fixes/legs off of a loaded approach if im being vectored. If you are being vectored and then ATC say direct to XXX or maintain NNNNft until XXX now you need to reload the entire approach.

Start with this: Generally when an AP does something you didnt want it to and the question is: "Why did it do that?" The answer is because you told it to do it, even if it was on accident. AFMS: https://static.garmin.com/pumac/190-02291-20_02.pdf When ATC says expect ILS 24 I will ONLY load the approach, once I am cleared for the approach I will then activate it based on where on the approach you are you might need to modify the flight plan but I never activate before I am cleared. But as said above that button on your GPS and the button on your AP do different things, the manual explains it. Edit: Before you enable the AP ALWAYS verify the command bars, does it look like/match what you are asking for? You have to do this every single time you touch that AP. If Yes continue with enable, if no you need to scan that panel and look for the incorrect annunciations. Were you on HDG rather then NAV? etc.

What kind of CHT probes do you have? Do they go to the spark plugs or are they screwed into the cylinder head directly? The spark plug probes will run hotter then cylinder head probes. Do you have a datalog from an engine monitor? What is your take off full rich fuel flow? And at what elevation + DA? How do you have the engine configured for climb? Full rich? Prop full forward? Full throttle? Check the baffles in between cylinders, make sure they are there. Last time I checked mine they were held in with springs and can easily be installed incorrectly.

I ended up sending my broken piece to K & K for repair(https://www.precision-welding.com/). They said that is was within repair limits. Ill give my shop a call today to confirm everything was good. Thank you very much!

Yeah ignore the product promotion part. Tech sector is filled with "heres a problem, heres how you can pay us money to solve that problem"

Yes but also not really. AI systems are validated using datasets. The issue with that is because data can vary so much its (at least at the time of writing this) basically impossible to test all the possible options an AI could execute upon. The issue with AI is that if you feed it the exact same data twice you probably wont get the same exact answer(there are memory training caveats here). Sources on this are kinda hard to find because this is still kinda new but this article is the closest thing I could find for you: https://www.qed42.com/insights/perspectives/biztech/complete-guide-testing-ai-and-ml-applications

ML is not "AI" and neither are NLPs. They are all different topics within computer science and generally considered a subset under the topic of AI. Here is a description of ML vs AI: https://ai.engineering.columbia.edu/ai-vs-machine-learning/ or https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/artificial-intelligence-vs-machine-learning/#introduction Heres a description of what those two things mean: https://www.geeksforgeeks.org/difference-between-deterministic-and-non-deterministic-algorithms/ Hope that answers your question.

Everyone should really read this. ChatGPT and Bard are not really "AI", they are really NLPs and are VERY limited in what they can do and will happily answer incorrectly with full confidence. Lots of software uses the term AI for making a decision when thats not really what AI is. Code is always making decisions thats quite literally how code works. We do not need AI to fly airplanes autonomously. In fact it could be argued a non-deterministic piece of software is not the correct application for flight. Well defined deterministic tested code paths are ideal, its essentially impossible to test AI because you can get a different result every time it comes up to a possible problem. With deterministic code we can test inputs for expected outputs. Rockets have been flying completely autonomously to space using deterministic code since basically the inception of space flight. If something happens do this, of this list of airports find me the nearest one with a runway of X length and a gps approach, if hydraulic system A fails follow these steps to isolate, etc. Controlled inputs == controlled outputs, this requires significant redundancy with an odd number of systems to ignore out of family values but its all possible with current, existing tech. https://theaircurrent.com/technology/emergency-autoland-puts-garmin-on-the-bleeding-edge-of-autonomous-flying/ Not Artificial Intelligence While on its surface, EA looks a lot like the work of artificial intelligence. “We could’ve done artificial intelligence, we could’ve done computer vision,” said Kilgore of the patented system. It’s not. In 2019, certification of an AI-driven system isn’t possible. The FAA, nor any regulator, has yet to create a framework for certifying so-called non-deterministic systems. In technical terms, non-deterministic refers to the inability to objectively predict an outcome. “I think [AI] has its use,“ said Kilgore. “But as far as certifying it, I don’t know that you’re going to find a good use case where you can certify until you can explain what it’s doing.” EA is, however, entirely deterministic. At every point, Garmin’s algorithm knows why it making the decisions it is given the inputs. “In this case, we can go back and we can understand exactly what it’s going to do and it’s going to be repeatable,” said Kilgore. “We tried not to overcomplicate the problem for what it’s intended to do.” And what it’s intended to do is to get a healthy airplane with an ailing pilot out of harms way. It’s not ready to be a fully automated system in normal operations, and those challenges — particularly related to the interaction of a healthy pilot and their ailing airplane — have yet to be solved, but it is one big step in that direction.

Yeah exactly im talking inside the FAF. Interesting. Guess ill need to try a few things the next time I go up for some practice. Yeah that is insanity.

Soooo.... Are we saying on a stable approach we shouldnt use the rudder to fix a small deviation? Say 2-3 degrees? Cause thats exactly how I was taught. Something larger and the yoke gets involved. The pressure on the pedal is pretty low though and the ball doesnt really go too far away from being centered. Normal turns I obviously dont just use the rudder though... thats kinda insane.

Thank you, I just ordered the stiffeners from them. They had them as new surplus and ive ordered from Preferred before as well.

Hi all, My J is stuck in annual due to a cracked bulkhead. Im looking for a spinner bulkhead and stiffeners for a 1977 M20J. Part Number for the bulkhead is 680031-017 or 680031-003 Part Number for the stiffeners is 680031-023 six of these are required If anyone happens to have one or know someone that might please let me know! Thanks! Dylan

I go to Aspen/Snowmass a few times a year, in fact I just got back yesterday. I have not flown my J there... yet so I cant comment on the landing/parking costs. Lodging is expensive but everything else is fairly reasonable for being so far into the mountains. Lift tickets are a little more then other areas but for the quality of the mountain, services, shuttles, and some trails that are an hour long between lifts its worth the cost in IMO. Food costs are similar to LI/NYC. When I do eventually get the courage to fly my J there ill be finding a flight school to give me a few hours of local training and mountain training. I've flown in the NE "mountains" but 3-7k mountains are a different game then the Rockies.

Im not increasing anything. The throttle is left completely alone. The drag on RPM is due to the #2 cylinder not firing and causing power loss.

This is what a sticking valve looks like and sounds like. Based on that EGT graph you have a sticking valve. As said above this is something that needs to be looked at today, not in a few weeks or in a few months.

Did I reply/quote on anything of yours besides: No. So now your stretching something to make an unrelated point that had absolutely nothing to do with what I said. Between slowly seeing people stop posting here over the last several years and speaking to people at Mooney Summit im not the only person that thinks this place is going down hill. This isnt up for debate nor is it MY point of view. Scientists determined lead was horrific for life in the 60s and our further understanding of that has only made the impact of leaded fuels worse. Those that dont should open a book and educate themselves instead of attacking people because they are pleased to see a vendor posting on this site for the product they are trying to release. The fact that you think Elon is twitters savor tells me all I need to know. Im done in this thread.

What a shit take. Plenty of people do for that exact reason. Doesn’t build that great of a community when knowledgeable people leave because of it.

The amount of entitlement in this thread is absolutely wild. You all realize how privileged we all are to even be able to do this let alone complain about a new fuel that doesn’t poison the people below us that help pay for the airports we commonly land at? We have a big enough issue with airports closing due to “noise” when those people bought a house next to an airport that has existed for half a century we don’t need leaded fuel to even be in the conversation anymore, it’s a joke. The fact that we are burning leaded fuel still in 2023 is frankly disgusting and negligent. It should have been banned 3 decades ago. If you don’t want to buy the STC, don’t buy it. This place is more toxic then video game lobbies at times it’s ridiculous.