carusoam

See how far Big G has gotten with their AP… They were steadily working their way through the alphabet… The oldest was probably the 65 M20C… The M20A is slightly different from the M20C… The M20C already had the servo mounts from the factory from the Brittain system that was there originally…. Make contact with the Garmin factory… get on a list. Or make a list for them…. An AP is a wonderful thing to have for a plane…. Best regards, -a-

Welcome aboard Shawn! I’ll let @M Terryknow you are asking… Best regards, -a-

Welcome aboard Scott! You are in the right place. Best regards, -a-

Nice to see @TrekLawler checking in… Additional data has been supplied above… Best regards, -a-

wait a sec… another Mooney at central Jersey airport, Manville NJ? I just posted a YT video interview with the pilot of the last one…. Best regards, -a- New ownership, reported in March of this year… engine out, on T/O… more of a gear ripped off than a gear up…. https://www.tapinto.net/towns/hillsborough/sections/police-and-fire/articles/plane-taking-off-from-hillsborough-airport-crashes-into-cemetery Inviting @Alan Fox to see if he is familiar with this one…

Check to see what the JPI is set for seconds per data point… Newer ones can get one per second… Standard setting is a goofy six seconds… neither will be fast enough to catch this transient with any accuracy… PTTs are a simple switch to ground… See what else is accidentally connected to it…. Reviewing the health of the field wire is a great idea… alternators are known to stop working when the field wire stops being connected…. PP thoughts only, not a mechanic… Best regards, -a-

Does your set up allow you to see what altitude is being reported? My BK transponder 76C? Has a display of pressure altitude on its face… This would help to minimize the possible sources for the error… Starting from the static system, to the device that puts a number on the pressure… to where that number gets reported next… Sometimes the altimeter is involved with reporting the data, since it is connected to the static system… What is the box called that converts the static pressure to altitude code? faded fuzzy memories of gray codes…. Best regards, -a-

If only there was an FAQ section…. This would be a perfect entry for it…. Best regards, -a-

Welcome aboard Fredrik! Silicone and painters tape… Best regards, -a-

Bummer… Usually, the leading edges take a beating…. Head on impact with rain and snow have a tendency to sand blast the paint… The Camaro looks great… my ‘95 Firebird Formula has been shedding paint for decades… Black under a clear coat… The first place to lose paint was the metal headlight covers…. Then the top surfaces of everything else…. Keeping shaded… things last forever. For large surface areas… people have stripped and painted seam line to seam line…. With pretty good success… Leading edges often get a black line painted on them… to create a seam line… where it is expected to be seen… otherwise you may end up with nice patches that are obvious to the untrained eye… Hence the discussion on clear coats… how well do they hide the added seam lines… Also be on the look out for painting strategies to avoid seam lines… or at least minimize them… Matching paint colors has been covered around here a few times… Best regards, -a-

Nice thread gabez! Thanks for sharing it. Three things I try to look for before committing to flight… 1) rpm… 2) MP… 3) FF… Confirming aircraft performance after the fact…. 4) Running cloud/ahoy to measure T/O distance… and confirming with climb rate If I have all three… I am most likely producing 100% power as expected… If I have the fourth… all is proven good. Where this falls down… is partial blockage of a fuel injector… The fuel will appear in the other fuel injectors… but not produce full power… Partial blockage of fuel injectors is a bit common around here… an engine monitor is a good way to find them… If you can… download your data from the monitor… up load to Savvy… push the share button… copy the link here… There have been a few reports of turbo MP controllers not working perfectly… the MP data is recorded by the engine monitor… PP thoughts only, not a mechanic… Best regards, -a-

For an interesting paint discussion… Find the Mooney Anomaly…. @TheMooneyAnomaly and any of the threads covering paint fixing prior to waxing… using the modern ceramic waxes… Best regards, -a-

Clear coat is the first layer to fall off in big flakes after it sits outside in the heat and daylight… Modern automotive paints probably work well for five to ten years in NJ… until the clear coat breaks down… Dark paints are probably the most susceptible to damage… as the temps rise pretty quickly in the sun. Of course… the paint I’m discussing is for the GMs that sit out in my front yard…. If you can… experiment with small areas… get a feel for how well your skills and paint match your expectations…. My M20C’s paint went about 45years getting small areas repaired without looking patchy… no real skill involved. PP thoughts only, not a mechanic… Best regards, -a-

There was a discussion regarding lubrication around here… earlier today. MP controllers are the first thing to consider… they have a few moving parts that get exhaust temperature hot… There is a particular lubricant for this… called mouse milk… Use early and often… Simple and effective… start there, and see where to go next… PP thoughts only, not a mechanic… Best regards, -a-

What does the POH say? The POH usually covers normal operations of the plane… So many changes all at once… it is time to check the accuracy of the gauges as well… RPM is easy… there is an aural app for that… it can hear the prop and tell exactly how fast it is turning… MP is kinda easy… it should match the outside pressure when the engine isn’t running… FF if calibrated… should read the documented number as you go down the runway… T/O is max power… for your plane, per its documents… POH and any STCs You should be able to achieve max rpm, Max MP, and Max FF before gaining too much speed… A new prop and engine installation… may take a few hours of tuning things to get right… There is nothing more complex than an M20K’s fuel system… Fortunately, you don’t need a Mooney specific mechanic to handle engine set-ups… Expect some oddities… when using digital engine instruments… you may get some red lights flashing as the rpm exceeds 2700 rpm by 1 rpm… the rules were written before digital instruments were invented… The mechanical controls are good… but not 1rpm precise… PP thoughts only, not a mechanic… Best regards, -a-