A64Pilot

What kind of compressor are you referring to? I won’t have AC on a small airplane, but if I did I’d want it to be electric, the reason is that if done properly you could pre-cool the airplane before pulling it out of the hanger. ‘I assume but do not know that you can do this with electric cars, if not then they aren’t very smart, it’s the initial cool down that uses the most energy, once cool it’s not so hard to keep it that way. ‘The AC unit we installed in Crop Dusters was essentially a golf cart motor hooked to an automotive compressor, what would better is a brushless DC motor, I believe the Prius is that way, that would give you a variable speed compressor. I got my HVAC card to work on the Longbow AC’s if needed, a Longbow has dual 7.25 ton AC’s to keep the avionics cool. heat from bleed air. I never needed the card, the AC’s were extremely reliable

Maybe a heat balloon would work better, using Martian atmosphere, it’s cold as the devil there and they work off of heat differential of course, but the source of heat would be an issue.

One of you smart smart guys could easily install a micro switch and a light if you think it necessary, I’d consider that a minor modification myself so long as you didn’t modify the mechanism

They don’t hand fly well at all, they trim poorly, they are meant to be an auto pilot flown airplane, nothing wrong with that, just know it going in. ‘Then look at what the parachute limits are, something like 53 to 140 kts in straight and level flight?, so pretty much for an engine failure and not much else?

it’s the cam of course that will be your biggest concern. I’d pull a couple of cylinders one from each side and get a look. That also lets you get a good look at the cylinders too. Someone in my neighborhood is resurrecting a twin Comanche that hasn’t run in 15 or so years, they had rusted cylinders on the left engine but said the cam was good. I think they will know for sure in 50 hours, or so. I would inspect the filter in 5 hours, then 15, and finally 50, after 50 I’d start to feel lucky. ‘The moment you find metal that will stick to a magnet, stop and find out where it’s coming from, if you catch it in time you may save a crank etc. Put lots of oil in the cylinders and leaving the bottom plugs out spin it over several times with the starter to blowout all oil out before you put the plugs back in prior to starting. Last edit. Good luck on getting the plug out of the case, sometimes they can be a real bear to get out, you can pre-oil from just about anywhere even remove the pressure sender and go in there if you can’t get the plug out

A spinning ball generates lift, called I believe the Magnus effect, so I guess you can “fly” a ball https://www.grc.nasa.gov/www/k-12/airplane/beach.html A cannon round fired off axis of an aircraft in flight will generate lift on one side and has to be compensated for to hit a target for instance

Several years ago somebody must have had a meeting with FAA inspectors, DAR’s MIDO’s etc and told them that they could be personally held responsible for whatever they sign, since then, many don’t want to do anything. DAR’s , DER’s and yes even IA’s exist to do the FAA’s job, anything any of those can do, you can have the FAA do, just be prepared to wait a very long time, all are delegates of the FAA, the FAA loves to delegate

So, a Harrier in hover isn’t flying?

You have the Walter E11 ? Is it derated to 724? Can you hit torque limits or do you temp out first?

Good friend who just passed had the Georgia plate NHRA, he’s had it for decades

The chart is mounted on the panel and yes I’m familiar how it works, it works off of intake vacuum of course so you must have low manifold pressure to get vacuum, so assumption is prop to full RPM and then reduce throttle as much as you can and still maintain flight, vacuum gauge should still work ‘There is an recurring AD that I’ve not read yet, but recurring AD’s often exist for things maybe I’d just as soon do without. ‘I put an Air Wolf wet pump on the last airplane and was real happy with it, I may look at that for this one, maybe the best backup is a system that’s reliable enough to not require one?

HVAC is simple, I don’t know of any forums but I’m sure there are some, there is a forum for everything. ‘But I’d buy a HVAC for dummies book or similar, the principles are the same but things are getting more complex, used to be you had one expansion valve in a heat pump and it was driven off of a temp bulb, now for the more efficient units, there are two and they are electronic and driven by stepper motors and have of course control boards and a temp sensor, more precise and more efficient. Getting licensed isn’t hard, even I got one.

It was returning to Ft Hood from conducting a live fire demo at Ft Sill, the demo was neat because we got to see the arty guys do their thing and even a low altitude drop of a full bomb load from a B-52. The artillery guys had a neat trick, they could fire three or four rounds each at different trajectories and all land on target at the same time. The B-52 was something to see too. ‘I don’t know where it was because there was no radio call of we are fixing to take a picture or anythiing

Graveyard spiral

How would you like or have been this guy? https://www.ainonline.com/sites/default/files/podcast-files/2017-07-ain-human-factor-ntsb-aviation-incident-final-report_0.pdf CAPS I see as being most useful for the guy who runs out of gas and doesn’t want to try a forced landing or other similar thing where you have control and can plan it.

Sometimes, especially if you do your own maintenance on other things like say for example something Diesel, each side to line will have one washer on either side of the bolt holding the line on, and knowing how to anneal them can be of use. Banjo bolts I think they are called, and you run into them pretty often for fluid lines. Often they are metric and not all that easy to get the washers for depending on where you are.

I guess it’s fugly, but not any fuglier than the AH-64. We worked with an Air Force unit in the late 80’s. they were interested in how we “did” nights. One commented on how he now understood now why we flew so much at night, we were too ugly to be allowed out in the daytime. ‘Later we found out that they were the F-117 squadron, now talk about an ugly airplane. I wish I knew then what they flew.

On the boat we had a Garmin in reach that was great for that, different plans but $12 a month and whoever you want can track you, you send them a link to a website and it shows position and of course your tracks, and the tracks persist for years so you can zoom out on our “map” and see everywhere we went in the Caribbean, and the in reach can send and receive txts and send SOS messages, but I wouldn’t consider it a replacement for an ELT or PLB myself but some do.

I’ve not seen 5606 soften an O-ring, now over time it seems to, but that’s a longtime. ‘Having said that whatever rubber is used for auto brakes is not comparable with 5606, if your worried about that, get Viton O-rings, not much eats Viton and they are available. I think it’s overkill though

They way some pressure transducers work is by the caveman method of compressing carbon powder, the tighter it’s compressed the lower the resistance. That’s how old microphones work too, so it’s more sensitive than you might think. ‘I woud bet that what your seeing is very likely the varying voltage of your electrical system, and not pressure fluctuations, maybe. Try pulling your alternator field CB and see if the numbers change, if they don’t, that in my opinion eliminates voltage fluctuating as an issue. ‘I’m not familiar with your aircraft, if you have a alternator switch use it of course.

Your looking at what is sometimes called analysis paralysis, it often comes from hooking a digital device that will display tiny increments, whether accurately or not is arguable, but the faithful believe something will measure to .001 because it displays that, a issue is that the analog device can’t measure within 5 PSI even when it was new, decades ago, and it hasn’t gained in accuracy since then. ‘There is a reason why the stock gauges have only a couple of numbers on them, with big green arcs

It may be Continental’s that has the issue, but one of the manufacturers has a problem with the adapter loosening and the engine losing oil. I believe it’s the one Cessna uses or maybe it’s the one Continental uses on the engines it supplies to Cessna? I didn’t dig into it, just came across it. Either way what I was trying to point out is that adding an oil filter is of course adding more than a filter, the adapter is another failure point, and while I’m making no claims myself, sometimes well meaning modifications come with their own set of problems. ‘For instance my Mooney has some kind of Emergency Vacuum system, and while I’ve not dug into it, I believe it may be more of a problem than a cure. ‘I think I may be removing it at the next annual if I find out that it’s more of a safety issue than what it’s trying to prevent.

So your saying that even if you sign up for LADD with the FAA someone can subvert that by paying Flight Aware a fee and get your tracking data anyway? Or are you saying that for a fee you can allow some but not others to track your aircraft, even if you have signed up for LADD. Or what are you saying, sorry I’m dense I guess.

Yet, many if not most of the tracking sites will post pictures of the aircraft as well if they can get them. ‘I guess just in case the N number wasn’t enough to identify it?

I can’t help you with the balls, but O-ring wise, get an O-ring kit from Amazon and use the one that fits. ‘Every aircraft jack I’ve ever seen uses 5606, which is basically just hydraulic oil, often “jack oil” is automatic transmission fluid, and I think that 5606 and ATF are pretty close to each other. Farm tractor hydraulic oil is often also the hydrostatic transmission oil, so it’s different, but I don’t know how, it’s oil colored and heavier viscosity than 5606, don’t have clue about it other than that though, I wouldn’t use it, I’d use 5606 myself. ‘The cylinders them selves most often have simply O-rings and wiper rings is all. ‘I’d take one to a place that rebuilds construction equipment hydraulic cylinders, I bet they have the parts on hand. Biggest thing that makes an aircraft jack, an aircraft jack in my opinion is the mechanical stop that’s often nothing more that a big nut so to speak that stops the jack from falling if the hydraulics give up. If those have such a device, then they may be worth fixing, if not, maybe not. I think they will be an easy fix