Density Altitude (Private Pilot Lesson 6e)

[@jgnmas]

I’ve used so many of your videos to pass my Part 107. I know your videos are more advanced, but they’re so well-taught that I can grasp the stuff I need to know and then some.

[@ahmadalshamie]

SHE IS MY BEST DISTANCE LEARNING INSTRUCTOR TEACHING IS TALENT THANK YOU

[@flankerskioneniner4290]

Where is she now ? She never upload nowadays

[@Goatman365]

Made me understand the PA and the DA, thank you very much...you rock!

[@lidorbarkai7861]

The best explanation i saw about how temp differentiate altimeter reading

[@fabianmihai1178]

Cyndy you are Simply Amazing 💖🙏 Thank you for making understanding easy for everyone of us . I cannot wait to start my ground school. You are one of the reasons I decided to keep it going when i got stuck in the begining... Thank you from all my heart 💓

[@shawnsmith1865]

Thank you Cindy for making these videos. I'm in ground school now at night ....you really help to clear things up. There is Sooo much to learn!

[@maxblack-u9f]

It is so useful! Thank you! I was self-studying on PHAK and I got so confused.

[@arashpirzadeh7808]

Finally a good video on the topic

[@Filmbz]

Dope Dope, thank you for sharing and the clarity. I'm recertifying for my FAA Part 107 tomorrow😁💪🏿🖤💛🤍

[@salomon3343]

Thanks for your presentation in ground school . It's help me with my training..

[@cherfblessedman5259]

Thank you Capt. Cindy I'm really learning a lot from you. God bless...

[@relentless2002]

Thank you Cindy

[@toddw6716]

Your the best at explaining this stuff

[@alexwonner7469]

Best explanation ever! Thank you so much.

[@KumaranPilot]

Amazing explanations.

[@kristofferjung2221]

Question: So in this case, is it right that I would be flying at about 6500msl but my airplane is performing as if it 7860msl? It isn't physically flying at 7860msl right??

[@maritestaylor8458]

The information is soooo awesome 😎😎😎😎

[@jonathanmoore9661]

Your videos have helped me SO much. Thank you!

[@MrSam-db1vw]

I think it to make the calculation is better because it make me stay understand how the dynasty altitude work versus pressure altitude working versus reality altitude if you like to say so but the machines make me stop thinking about how these subjects work together

[@flankerskioneniner4290]

Thanks. Your explanation, easy to understand

[@alejandroosorio7697]

Thank you so much Best explanation ever

[@2ndbar]

Thanks again!

[@jakew9887]

Great Video. Thanks

[@CatriMatri]

So do you NEED to get PA first in order to find out what DA is? Seems like the only way you got to DA is because you added the PA you had already figured out. Correct?

[@christinarawlins4224]

Yes, to calculate Density Altitude you have to begin with Pressure Altitude.

[@seattleraf]

So I’m indicating 6500 but performing at 7860. Got that. But what about my true altitude vs indicated? At the beginning of the video with the columns you mentioned how on a hot day you’d be flying higher than on a standard day to get the same indicated reading, right? So in the example my true altitude would be greater than 6500 as well right? Would my true altitude be 6500 + (13*120) = 8,060? That feels like a huge difference but then again your example was in an extremely hot day (2x standard). Is that right?

[@jeffjorczak]

Does the top of the air column actually change based on the temperature?

[@sotos82b]

I thought than the formula to correct for the temperature was 4*(isa dev)* altitude /1000

[@DirkLarien]

i think as well. 120ft/C should be for performance calculations only (how plane performs) But for height calculations it should be like you say term alt = QNH alt + (4 * isa temp deviation * height of air from the ground/1000) Still i think lady Hollman is great teacher, she has good explaining gift.

[@caseykelso1]

i hope your the type to answer our questions;) : i thought barometric pressure fixed that for us ie; the reason we can comp. for it on our alt. meter??????? should we be correcting for temp. as well? and what is STANDARD???

[@DarthissGameplays]

I can't understand something. I would be **fiscally** flying at 6500ft or 7560? Thanks!

[@tonyinthe805fd]

Why did you use 31.2 in this example. I get that it's just an example, but a new pilot might think that the altimeter can't go above 31 for the correction.

[@jackhammer111]

And you have to do all that while you're flying the airplane.. Which is more of a problem? Being higher than your altimeter says or being lower?

[@nickde6339]

If a higher QNH than standard 29.9 inHg shows me a higher altitude, why does the airplane think I am lower down... I get what happens at the molecular level, but shouldnt the QNH decrease the altimeter if the QNH is higher than standard?? and increase it if the pressure is lower than standard, exam: 28.9?? This so fkn weird.. I hope somebody helps me.

[@makkavalley9144]

i always thought cold air was more dense so higher density altitude = better performance . i was wrong

[@nofilaltagdy854]

you are queen

[@robertoNirengi]

Does anyone know that where the equation (1 Degree celcius = 120ft) derived from?

[@uu2323]

did you get the answer on that? i did take lesson about this part on school, but didn't understand

[@robertoNirengi]

No brother. I guess it's a very complex formula. Better to memorizr the thumb rule only. No need to go too deep 😊

[@uu2323]

@@robertoNirengi yeah, really it is. we just need E6B calculator, right? :)

[@robertoNirengi]

Yeapp. Let the professors think about it. We are the aircraft operators. A basic calculator and a brave heart are enough for us 😊

[@tharcissekongolo6239]

I know that 1 inch square of mercury equals to 1000ft therefore 0.2 inch equals to 200ft

[@paulcrooks4467]

So how that affects flying

[@DanDanJanJanJP]

Thank you.

[@namnyaklogistics8365]

Cute ,smart,humble

[@INDIGNITYBOY]

Here is comes a very good question. In US, Do they always measure the density altitude by Celsius ?

[@ArtisanTony]

temp in C and alt in feet :)

[@paulcrooks4467]

You working backwards

[@timquain5341]

Ok so now I just don't trust my altimeter.

[@hkb1467]

For this one I think it would be best to stick with stating the atmosphere is less or more dense depending on altitude and temperature rather than speaking of taller or smaller atmosphere which is really not correct.

[@thebestken]

Remember: When pressure is higher than standard > Indication is higher than actual When temperature is higher than standard > Indication is lower than Actual Because, the adjustments were not made to a perfectly standardized Altimeter.

[@georgeclawson2083]

Women .are better instructors, I understood her presentation!

[@IvanIvanov-ve6ti]

That is not a good explanation.

[@Braunix]

Give us a better one!

[@IvanIvanov-ve6ti]

@@Braunix kzbin.info/www/bejne/Z3nVqId6mb-Nb6c&lc=z22qdht5vnutxdjl4acdp432iaxt50exniq21a1rpmpw03c010c

[@IvanIvanov-ve6ti]

@@Braunix You're wellcome :)

[@jimjohnston526]

If you watch her video on Pressure Altitude she also makes a big mistake. PA=(29.92-current altimeter)*1000+field elevation. If current altimeter is >29.92 it will give negative number. She did not do this and it will make a BIG difference in DA calculation.

[@Sifo_Dyas]

So the temperature at takeoff of 30°C never came into play.