Air Density FAA Part 107 Drone Exam Weather pt3

[@chrisd2261]

Man I wish I had a teacher like you in school. I was able to get a 90 on my test because of you. Wish you would come back to youtube and teach more drone things like you said you wanted to.

[@Chrstphr03]

Hey Mr. Migs - I passed the test! Thank you tremendously for your help, having assembled the playlist with an abundance of information. The test was tough as it at first felt completely foreign but with information you've provided I was able to shift my mind into perspective, putting it all together.

[@BenHyatt]

Thank you for these videos. Took my test this week. Would not have passed without your videos! Passed!

[@MrMigsClassroom]

Thanks Ben!

[@BoundlessFPV]

I just walked out of the text center with a 97%! Thank you for all your help!

[@MrMigsClassroom]

Rockstar!

[@infidel4478]

Tested and passed today, thanks for the help Mr. Migs. I watched almost all of your videos on Part 107 and they were all extremely helpful. I was particularly pleased by the fact you get right into the lessons. There are quite a few Part 107 'instructors' on YT who sort of ramble if you know what i mean. Thnx again.

[@MrMigsClassroom]

Congratulations! You rock! Thank you for the kind words.

[@TheRunnerBrett]

REALLY well done. I was confused about this but not now--THANK YOU!

[@rudygamboa8222]

I passed because of your vids!!! Thank you for sharing your knowledge!

[@MrMigsClassroom]

Excellent! Glad to hear it!

[@JefferyLSmith]

Great informatiom Mr. Mig

[@MrMigsClassroom]

Thanks Jeffery!

[@dhxiee]

A great serial of videos for explaining the weather section in part of 107. Thank you so much, Mr. Mig!

[@MrMigsClassroom]

You are welcome! Please subscribe if you haven’t already.

[@MarianaVyshnevska]

Like your format

[@MrMigsClassroom]

Thank you!

[@michaeldesmit5577]

I like the question and answer format that have been using. Easy to understand and your presentations are very helpful. Thanks

[@DonEdward]

I just took a practice test on the weather section and did terribly! I'm on the 3rd Mr Mig weather video, bingeing them all, and I feel much better prepared. Taking the test again to see my score improve! I'll let you know how it goes!

[@IslandCreek]

Taking the exam Friday...so nervous lol thanks for the videos they are so helpful!

[@nohtodaniel8047]

Watching all your Part 107 videos, so far...so good, nice how you explain things. I am also a teacher, out of work at the time but love to teach. i think maybe you should explain to everyone the simple conversion from C degrees to F degrees C x 9 / 5 + 32. It is easy enough to do in your head, no paper/pencil or calculator required.

[@MrMigsClassroom]

Yes, I want to do a video on that. I also have a simple way for people who are adverse to math formulas. start with the simple 0 Celsius equals 32 Fahrenheit conversion then add five Celsius for every nine Fahrenheit or vice versa. Ex 5c = 41f. 10c = 50f.

[@CarolinaAirshots]

Great info Mr. Mig

[@MrMigsClassroom]

I appreciate it!

[@seanmolincreative]

Thanks for explaining this. I ultimately did enough practice tests I realized that high meant low and low meant high, but it was SO frustrating to not understand why.

[@LawnBunny777]

New sub. Excellent video! On practice tests I was always getting that High/Low Density question wrong! I mean, High Density Altitude meaning Low Density and vice-versa is just so confusing but I get it now! Weather is my weak point and your video on this really helped. Looking forward to watching others of yours! You explain things very well!

[@MrMigsClassroom]

Glad it has helped. Yes, that is tricky.

[@annieo.4779]

Seriously, why aren’t they just saying High Altitude Density instead? Then it would make sense to say “oh, high altitude density is low density.”

[@LawnBunny777]

@@annieo.4779 exactly!!! I haven't taken my test yet but I just memorize the 3 Highs - High Density, Temp, and Humidity mean lower performance.

[@OranJuno]

​@@LawnBunny777 To anyone reading this comment, no it's high altitude, temperature, or humidity means decreased performance. Not density.

[@LawnBunny777]

You're right. My bad. At any rate I did manage to pass my part 107 and I got 97% right!@@OranJuno

[@arkansasoutpost]

I've taken a few practice tests in the last few years, and I always got the density altitude questions wrong. The terminology is so counter-intuitive that it borders on evil. We tend to read 'high density' or 'low density' as a compound adjective that modifies 'altitude', so 'high density altitude' naturally sounds like an altitude with high density. I think I solved the problem in my own mind though. While watching this video, I started adding a hyphen between 'density' and 'altitude'. It's a cheap trick, but it calmed me down.

[@MrMigsClassroom]

Yes it is counter intuitive and tricks most of my students. Adding a hyphen makes a lot of sense to better understand it.

[@arkansasoutpost]

@@MrMigsClassroom btw, I got a 90% on my UAG exam today, and I thank you and your videos for helping me get there. I was a bit peeved that that I only got two weather questions, one on density altitude and one on what kind of flying conditions lenticular clouds indicate.

[@MrMigsClassroom]

@@arkansasoutpost congratulations J!

[@AlexGlanville]

@@MrMigsClassroom -- I think an intuitive way to educate others on this is to relate it to space. As you get higher, the air density is lower. Why? Because there is no air in space and the higher you are the closer to space you are. That's how I made myself remember the difference. Low altitude density is "thicker" because it's farther from space so there's more air pressure, making the air denser.

[@michaelbryant879]

Passed The Test Mr Mig, appreciate what you do and helping out the community. Keep it up. If you ever want to follow my page to see my flights in Miami , let me know ! Have a great day.

[@MrMigsClassroom]

Congratulations Michael! Yes post a link and I’ll check it out.

[@michaelbryant879]

@@MrMigsClassroom LuxLionseye Miami is my youtube page. It wont allow me to post a link. Spam filters.

[@MrMigsClassroom]

@@michaelbryant879 nice videos!

[@chuckrogers5077]

Only bureaucrats could do something like this... I just change the order of the words (in my head) to "high (or low) altitude density" and it seems to help me keep it straight. I can easier envision the air getting less dense as the altitude increases.

[@haileyboland8345]

I was wondering about Temperature Inversions. I saw some questions on practice test about them.

[@nohtodaniel8047]

Hello, just a question...why don't you have your Amateur Radio License??

[@MrMigsClassroom]

I don’t know, I never got an amateur radio license. I’m not really an expert in radio or even an amateur lol.

[@Ecallejas3470]

Wanted to ask a question that I haven't found an answer to and doing some online tests I get mixed up about when and how to use either true North or magnetic North? How would you answer that? And thank you in advance

[@WA4OSH]

5:00 What is confusing here is using the words density and altitude together. Key on the word altitude instead of the word density. Density altitude is a way of converting the air pressure to an equivalent altitude over mean sea level. When the air is hotter than 15degC, it's less dense so it's like being higher in altitude. Hot air has a higher equivalent altitude than the reference altitude. Under hot days your aircraft will perform as if it were at a higher altitude. On cold days, your aircraft will perform as if it were at a lower altitude.

[@misterskippy2u]

Great content. The mix of metric (centigrade) and Imperial (inch) units for Density Altitude drives me crazy. Anybody else triggered by that?

[@tomrehkopf9793]

Just take out the word “density” as Mr. Mig suggests, and things clear up. High altitude = bad for flying because there is less air to work with to give you lift. So the higher the [density] altitude, the worse for flying.

[@videosinfrench9928]

Let's change the word order here to make things much easier. Change "High density altitude" to High altitude density" i.e., lower prop efficiency and "Low density altitude" to "Low altitude density" i.e., higher prop efficiency? Makes sense doesn't it. And why not add some saturated colors to sectional charts: RED, YELLOW, GREEN, etc. It would eliminate some of the difficulties of being able to make sense of charts.

[@laurencenilan3641]

Still can't wrap my head around stating that higher altitude has lower density air, yet the example of being on a mountain in a high altitude has high density altitude. So confusing!

[@pppjourneyonabike5992]

Should change the term to... Low Altitude - density

[@donaldquimby8099]

Isn't "high density altitude" poorly worded? I understand the authors of the Part 107 might have the excuse that we all should be aware of the possibility of poor wording, but seems that could cause more problems than making things very clear.

[@MrMigsClassroom]

Donald, I agree it is confusing. Unfortunately, it is what it is. On the exam “high density altitude” means air that is less dense. Like air at high altitudes is less dense than air at low altitudes.

[@videosinfrench9928]

The FAA and youtube Part 107 videos need to change the word order here so it makes sense. HIGH ALTITUDE DENSITY (low) and LOW ALTITUDE DENSITY (high) is a better word order. then High density altitude and low density altitude. "Showery precipitation" is ridiculous also. How about, "Scattered rain showers"? And the wording of some of the questions on the test is absurd.

[@skyranger187]

"Low-density altitude" is misleading. Why not just say "low-altitude density"? Because government, that's why! Lol. I hate bureaucracies.

[@FLYBBL]

Yes, just switching altitude and density fixes the issue. Leave it to guberment to mess it up

[@DLHMedia]

I’ve appreciated the detailed extinction of a lot of your videos. On this one I believe there is a falsehood in describing high density altitude happening at high altitude. As I understand it, we’re talking about “high density” and “low density” at an altitude- which is why you can have a high density altitude upon takeoff. Useful info and maybe calls for the need to edit this video?

[@MrMigsClassroom]

DLH, thank you for your comment. In the video, I stated that at high altitudes, the air pressure can change and sometimes you can get low density altitude at high altitudes and sometimes you can get high density altitude at low altitudes. Therefore I do not believe there are any falsehoods in this video, and I will not be taking the video down. high density altitude means the air density is low, which is what is usually the case at higher altitudes. At higher altitudes there is usually lower air density. For the purposes of the drone exam this is a good explanation. Could there be more complex explanations to air density if someone wanted to be a meteorologist for example? I’m sure the answer is yes, but in this context, what I stated is accurate.

[@DLHMedia]

@@MrMigsClassroom at 5:15 what do you mean with that statement? If needed you can edit it with text on top of the video