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    Can you jump a 12V plane battery with a car?

    The risk is eliminated or at least minimized if the good vehicle is NOT running during the jump. Yes, I know this is contrary to the instructions provided by "experts". The problem is due to a phenomenon known as "load dump". When the dead vehicle is cranking, its starter is probably drawing...
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    Old Cessna parts

    Kinda hit-or-miss, but if they have it the price is usually decent: preferredairparts.com. If you have the part number, you can search their inventory on line.
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    Spark plug anti seize question.

    The peak voltage in the primary winding is much higher than 14V because of the "inductive spike" generated when the points open (or the transistor turns off). 100-200V typically. Same deal with magnetos. That is NOT how you measure the turns ratio in a transformer. A common method is to...
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    Spark plug anti seize question.

    How do you figure that? My simplistic calculation: If primary current is two amps and coil turns ratio is 100, then secondary current would be 2/100 amps or 20 milliamps.
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    Flying with worn valve guide and/or worn rings?

    FYI, the broken ring in the picture is the second compression ring, not the oil ring. However, it does act as an oil scraper and can have an effect on consumption as you noticed.
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    Reel mower for taller grass.

    How about a scythe? Any height you want, better exercise... https://en.wikipedia.org/wiki/Scythe https://scythesupply.com/
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    Reel mower for taller grass.

    This one claims a cutting height from one to four inches: https://www.amazon.com/dp/B01N7K4BNX/?tag=thewire06-20&linkCode=xm2&ascsubtag=AwEAAAAAAAAAAOBU
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    Flying with worn valve guide and/or worn rings?

    Lycoming's limit for oil consumption is 0.006 x BHP x 4 ÷ 7.4 = Qt./Hr. They do not say whether BHP is the rated power or the operating power e.g. 65% of rated. So let us take the smaller number: .006 X 180 X 0.65 X 4 ÷ 7.4 = 0.38 Qt/hr. This is almost double your actual rate of 0.2 Qt/hr...
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    Auto engine diagnostic qeustion (NA)

    Is the cooling system filled with antifreeze (which would smell) or plain water (which would not)?
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    Auto engine diagnostic qeustion (NA)

    For $37 you can obtain this test kit...
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    How much money should I expect to make in the industry??

    https://www.bls.gov/ooh/transportation-and-material-moving/airline-and-commercial-pilots.htm#tab-5
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    Alternator Issues - Suspected Over Voltage

    For $50 you can get a 30V/10A lab type power supply which can also serve as a battery charger...
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    Cessna Generator Troubleshooting

    A couple more suggestions: 1. When you polarize the generator, ground the field through an ammeter and check for around 2 amps of current. 2. I would not trust the months old inspection, as a failure could have occurred since. Remove the generator and re-inspect brushes, springs and...
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    Cessna Generator Troubleshooting

    Brushes are available for $6.35 each. An alternator runs over $1,000. https://www.fresnoairpartsco.com/product/19066984-brush-delco-generator/
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    Engine overhaul on a stand

    Automotive engine stands attach to the engine at the back where the clutch or transmission bell housing bolts on to it. I don't see how this would work with a typical aircraft engine. That said, my O-300 overhaul manual shows the engine on a stand which places the crankshaft horizontally. No...
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    Dangerous request from airport manager?

    I beg to differ. 91.126 indicates it is regulatory: § 91.126 Operating on or in the vicinity of an airport in Class G airspace. (a) General. Unless otherwise authorized or required, each person operating an aircraft on or in the vicinity of an airport in a Class G airspace area must comply...
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    Dangerous request from airport manager?

    I am afraid my handle is misleading. The airport is in USA. FWIW, "traffic pattern" is USA specific, in ROW it is "traffic circuit".
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    Dangerous request from airport manager?

    I got the following e-mail from my home drone manager: Good morning all, As the area resident population continues to grow, so do varying appreciations for aircraft noise. As stewards of aviation, practice and repetition of flying skills is paramount to safety and enjoyment. However, the noise...
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    N/A, FM antenna question, FM neck-loop

    OP, looking at Listen's literature it appears they have two 72MHz transmitter models, one with a vertical whip for smaller buildings and one with a horizontal dipole for larger buildings. I will assume you have the dipole since there is talk about moving it. They may be unwilling to move the...
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    Piper Arrow at tie down with dead battery...how to charge?

    True, but the generator's ability to start itself is not much help in an airplane with a totally dead battery. The master contactor is energized from battery voltage, so you would not be able to connect generator to battery and start charging.
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