As an aerospace engineer, I strongly appreciate how informative the video is and how the presenter made it very easy for the average person to understand. Excellent video.

I can’t help but wonder if this video was in response to an email Austin may have received from the Cirrus publicity department after the race video. Cirrus Publicity: “Your last video cast our jet in an unfavorable light.” Austin: “No it didn’t. The laws of aerodynamics did. Allow me to demonstrate.”

I'm autistic and I've never seen a person explain so clearly. I wish every teacher was like you

One of the most informative videos I've ever seen on this range of topics. I wish my flight instructor had done an overview like this way back in ground school as it REALLY would have hammered home some of the critical fundamental knowledge regarding the effect of all these variables on flight performance in a really intuitive manner. 👍

But my truth is different: I was recently on the NBAA fair and Cirrus did not really stick out among the Gulfstream‘s, the Vision Jet had no range - jada jada. But honestly, which private pilot of family member spends more than 4h in one leg in a small aircraft. Then the SF-50 really stuck out on a smaller U.S. Exhibition in Scottsdale and the director let me fly it to Henderson, Las Vegas. This is what I learned: The Cirrus Jet is a roomy stretch limo like a Tesla X. I hand flew it all the way and it was so simple to fly with the G3000 glass cockpit. It felt like sitting in a 360 iMax theater, totally quiet coasting with 311kt on 22‘000ft looking down along the glittering colorado river as the sun set. The flight went under my skin and I got a bit big fan of the Cirrus Jet, despite the physical limits this video presents. But if you like payload, get a Pilatus PC-12 and put your motorcycle through the cargo door, absolutely great too. But if you just want to coast along, the Cirrus is it: Stunning.

If I had had such a fantastically clear-thinking and explanatory teacher in mathematics and physics, I would have become an engineer instead of a librarian!Thanks for the great explanations. Even I understood everything and that means something!

I am no engineer and even I get this after his explanation. What a great and informative video

This is a solid presentation and very informative. The problem is he is discussing the resulting products in the air race and not the design-intent for these aircrafts. The Cirrus Jet was not build for speed and still cruises at 315 KTAS at times. It was also made as a transition turbine class plane for Cirrus pilots wishing to fly higher and faster with similar landing speeds, controls and wingspan. Wingspan of a Cirrus Jet was specified at around 38 ft so it would fit inside of a conventional T hangar. The width of the cabin was intended for spaciousness and comfort when flying long distances, not speed, and to provide a means to demonstrate the panoramic view from the windshield. The Cirrus Jet is restricted to 0.53 MACH or 250 KIAS, which is also the speed limit for all aircrafts before 10,000 MSL. I am not discrediting any part of the aerospace engineering data. Just mentioning the design-intent of a product matters in comparisons.

This video also shows what a difficult design problem the PC-24 was for Pilatus. They basically were trying to make a higher, faster, PC-12 without losing the things that make that plane so good and so versatile vs a typical light-medium jet . Understanding this stuff really makes the fact that Pilatus managed to succeeded as well as they did very impressive.

As an enroute ATC, the cirrus jets are awful to work with. Trying to sequence jets to TEB becomes 100% more difficult when you have an SF50 leading the pack, barely able to get out of his own way.

I went through the same analysis as Austin, and so took delivery of a new Epic E1000 single-engine turboprop last year. Just this week I flew it from St. Louis to the Atlanta area with 6 adults and all of their luggage, doing more than 300 knots at FL330. No way could we have done that in the Cirrus jet. The 4000 fpm initial climb rate and 1200 shp shoving you down the runway during takeoff have to be experienced to be believed. Because we're flying up at 33-34,000 feet much of time, we're often referred to by ATC as an "Epic jet."

I’ve never come across this channel before and I have to admit, I had very low expectations of your content. How wrong I was! Truly an excellent lesson made extremely easy to understand.

Comparing the vision jet to the t-38 is hilarious! Cirrus designed it on purpose to be slower so it was as easy as possible for cirrus piston pilots to transition to single pilot jet operations where a type rating is required.

We were going half the speed of *smell!* We got passed by a kite! There was a goose behind us and the pilot was yelling "Go around!"

As a retired airline pilot with an aeronautical engineering degree I too love efficiency in a design to meet the mission it is designed for. But efficiency isn’t everything. I think Austin is missing the “coolness factor”. The Epic looks like lots of other airplanes and the VisionJet has a unique and attractive look. Plus, jets are cool and procedurally easier to fly than prop planes. Cirrus knew what they were doing when the made a straight wing jet that procedurally flies almost the same as their best selling line of SE piston planes. How many SR20/22 pilots would upgrade to a jet if it didn’t seem like an easy transition? The wider cabin with tons of legroom are also attractive compared to the “tube” layout of “efficient” airplanes. And although debatable safety value based the statistics, the CAPS parachute is often the factor that motivates pilot’s wives to give the go ahead on a Cirrus purchase. If efficiency was everything why would we build light twin engine aircraft? Everything Austin says is true and well presented but I just don’t think efficiency is the whole story. Coolness is a thing in airplanes… ask any Warbird or Pitts pilot. Cross country flying is not the only mission. Sometimes it is a $150 hamburger.

Beautifully presented, Austin! BTW, my Velocity XL-5 RG with 375HP and 1900lb empty weight could get to 10,000 ft in just a little over three minutes and cruise all day at 200 kts while sipping 14 gph. 127 gph fuel burn would make me nauseous while looking at the miserable climb rate.

Thank you Austin and team for the lessons and the wacky air races! Keep them coming!

I'll be honest, this is not at all what I was expecting. However, I think this was a lot more interesting. I always find the science behind aerodynamics really fascinating so I'm happy I stumbled across this. Great video! Thank you for the explanation

What a great, thorough video and still easy to follow the more complicated parts, great work Austin and all the team.

I fly a Cirrus SR22 and have about 6 hours in a Vision Jet, the thing that's complicated in aviation is that not every plane has the same mission. You have to balance cost, speed, range, comfort, maint etc. The Vision Jet is currently 3.5 million and with that bubble gut look it has, results in an extremely roomy cabin. The epic and many of the turbo props in that range are cramped. To compare the Vison Jet to basically any other light jet isn't fair because they all start at about double the price. So for personal/business use the Vision Jet fits the job for me. Also having that parachute as a last option is great for me with my family on board. I know everyone is Chuck Yeager but some times you are out of options. There was a crash near by me 2 weeks ago, Engine failure at night in imc at 200ovc. That pilot would have survived in a Cirrus....

Autoland + CAPS will continue to convince Mom's to let their rich husbands buy "a jet" to fly the family around, regardless of performance.

Great video. Informational. I share this with my new pilots getting in to the PC12 to discuss fuel flow aerodynamics etc. Not too technical but enough foundation to open discussion on new topics. I appreciate the work

This is one video that needs to be watched start to end without skipping.

Wow. You were always the "X-Plane Guy" Who appreciates life a lot and takes it perhaps a little easy. Well, I had so many "aHA" moments in this video, and I was overly attentive at it, engaging in your tremendous enthusiasm! Thank you very much, the conciseness yet informational focus of this video was an absolute bringer for me. I wish my flight instructor had the same skillset of presenting!

I have a Bachelors Degree in this and still learned a few things. Great video. The immutable laws of aerodynamics!

You summarized in 20 minutes what I learned in 4 years of aeronautical school.

You can explain it really good, can you please make more videos like this! Thanks Austin

great assessment and clarity for those thinking about making the jump from prop to jet!

Thank you for taking your time to explain this....I have been flying the vision jet in x-plane 11 for a little while now and concur with your analysis...Thumbs Up!

This is not a fair comparison at all. Love the detail on the vision jet and education, but we are forgetting it's purpose. Which was to be incredibly comfortable for passengers, extremely safe and easy to fly for an inexperienced pilot. I've sat in the Epic, and have flown multiple times in a vision jet. Vision jet has loads more room, the interior is more refined, AC controls for passengers, fold out TV, ridiculous legroom etc. Vision jet has Garmin G3000 w/ safe return, has a parachute, on board radar and has required annual training... Which can be a pain but makes better / safer pilots if we are honest. Vision Jet also has auto throttle and the Epic does not... Doesn't bother me much but to some it's a big deal. Also, you can unload 80 gallons and have plenty of payload to get more people on a 2-3 hr flight anywhere you need just about. Most people don't want to be in a plane for 4-6 hrs without stopping. I know my kids won't last more than 2 hrs... I agree the Epic is faster, probably flies better and has a more reliable engine. I love the Epic's electric tinted windows and you can now get on board radar for 75k... But most people want to go somewhere 2-3 hours away by plane in style and comfort. While being safe! My friend regularly gets 330 knots out of his Vision G2+ and he has never burned 125 gph climbing... I think something was up with that plane in the video. I am currently deciding between the two. Epic definitely deserves it's accolades but the Vision Jet does many things very well. After all, it outsells everything close to it's price point for a reason. Lets not forget that currently a vision get is much cheaper than an Epic. These prices are not accurate in the video. I can get a new Vision Jet for 3.2-3.4MM. Epic with radar is 4.5-4.6MM. Roughly a 1.2MM difference. I could buy a beach house with the difference... Or 4 Porsches... Or 2 really nice RV's.... But, Holy crap it might be worth it for that climb rate in the Epic. Either way you go there needs to be a true comparison of the facts... I want the performance of the Epic and luxury and safety of the Vision jet... Flying in a Vision Jet again this week... Epic sales rep is coming to see me again at end of the month... Still haven't decided. Decisions decisions...

That was so good, interesting and informative. You are a great presenter, Austin, thank you so much.

Very clear explanation on jets and physics. I learned so much! Great video 👍

I will add some practical examples. Firstly, the rules, the FAA requires single engine planes to stall at speeds not higher than about 65 mph (i'm talking power off), this is why planes have flaps on their wings, the fowler flaps on my Cardinal make the wing about 25% larger in area and change the angle of attack, resulting stall speed of about 55 mph, but this also reflects relatively fat wings with no sweep angle, none. A lot of pilots think their plane could go faster with stronger engines, this really only works if the original engines were too small to begin with. Original Cardinals had only 150 hp, come the B model that had 180 hp and they reached the sweet spot. What more power will do is allow a higher rate of climb and angle of climb, that's really nice when you have a short runway with a forest of trees at the end of it. It also shortens the ground roll on takeoff making a short runway sound better. Where you do get more speed with HP is altitude, piston engines rather quickly loose power with altitude while the true airspeed increases about 2% for each 1000' beneath your wings. The practical example is the Cardinal's engine produces only 75% of power at 10,000' but this means an A Cardinal is making about 112 hp there while the B Cardinal is making 135 HP up there. The problem with propeller planes (and helicopters) is the airflow over the prop tips. At 2500 rpms the tips are going 854 feet per second, add the forward speed of the plane at 120 mph or 180 fps your tips are going 1034 fps, darn close to sonic speed. If you are willing to settle for speeds between 350 mph and 400 turboprops are the answer, they can take off from shorter runways and land on same, on the right plane jets can be significantly faster but this won't show much on flights of say 400 miles or less. During the flight climb and descent below 12000' planes are limited to a max speed of 250 knots and the prop might outclimb the jet. Another thing to mention is that most airliners use 'fan-jet' engines with a really big fan in front, these are called 'high bypass ratio' engines that allow most of the air from the first stage (the big fan in front) to bypass the rest of the engine, essentially being a big propeller, but these might be too big around to put on smaller private jets.

Got to be one of the best videos I have watched. Super easy to understand. Enough science for the nerds. Enough costs for the accountants. Well done

Awesome video, thanks Austin!

This was an awesome video!! Everything you explained made so much sense! Could you do more videos like this on aerodynamics?

this is such an amazing video. wow. i have no words. the explanation and enthusiasm is incredible

Great presentation Austin, thank you!

In conclusion, we need a default "Properly designed biz jet" for XP12.

I thoroughly enjoyed watching this video. You had me waiting to see the evolution comparison though 🤔

I was already a big fan of Xplane for practicing my schooling at home. But all these new informational videos are just so well done I can learn hands off as well.

great explanation. youre an awesome teacher!!!!!!. i always wondered why i dont see more cirrus jets.

Great analysis. Need more.

Glad I found this video. I hadn't previously tried the Xplane Evolution, and now it's my favorite. The only advantage the SF50 has over the Evolution is that it's easier to taxi.

Slow but comfy.

Great explenation, comparison and review! Thank you for the job!

The Cirrus jet is about comfort, safety, and flight experience. If we don't consider any of those factors, sure let's design all jets like needles with sweep wings. It all comes down to what is more important to the owner. There is a reason why the cirrus jet sells so well... You can be a master in aerodynamics, physics, and math but there is no way you can enter comfort, safety, and flight experience into formulas as they are a matter of personal perception.

Austin is a great lecturer. :)

Excellent Presentation!

Wow this has really changed my mind about getting a jet certification.

Excellent video. Very informative and excellent conclusion

I learnt so much from this video, great explanation!

Finally at the end you got to the point, in technical terms it is cool factor plus some really good sales people.

What a great informative video - wow impressive info - never did like the Cirrus for the lack of speed, now i know why. Thought the Eclipse was twice the plane. Now I know why.

Wow!! Well done. Great explanation and examples.

Excellent presentation!!! Thank you.

Excellent video! You are a great teacher, presenting complex ideas in a way that anyone can understand. Enjoyed the lecture!

This was a fantastic presentation!

Outstanding comparison!

Cirrus Pilot: ***ya well...i have a parachute*** Nuf said

Wow...excellent analysis and very eye-opening for potential Cirrus Jet customers. Nice job!

Excellent explanation of the forces at work. Well done!

Holy Smokes! You should get a cape and a crown for this. One of the best most engaging explanations ever. I hear the bell!

I love my vision jet😊

the cirrus jet is a joy to fly. no big engine and/or propeller right in front of your face. easy to land. easy to see out of. if i want to enjoy my flight and experience the best views and enjoyment, i use the Cirrus jet in my x-plane missions. In real life, would i be bothered about spending a few extra hundred dollars on fuel every flight? not really.

I suspect the Cirrus SF50 was designed for Cirrus owners to trade up. That said, most single propeller plane pilots, would not be ready to upgrade to a Citation Mustang or Phenom 100. The SF50 is essentially the jet equivalent of the SR22. Cirrus wanted good low speed handling and comfort for new jet pilots. Top speed and ceilings were of secondary concerns. The SF50 may not be a very good jet, but it performs way better and has more room and comfort than the top SR22 model.

Very informative and an eye opener. I was hoping to hear more about the Lancair Evolution in the comparison since obviously you are an enthusiast with the Evolution. I think this would be of added interest since it will be produced in the Czech Republic with an eye on the USA market. Thanks again for a solid video!

That last sentence sums it up perfectly.

I think their design decision was based purely on ease of flight and safety. Those fat, straight wings make for low VREF speeds, which make for an easy plane to land. Maybe Cirrus could build a performance version with dynamically swept wings and maybe slightly slimmer airfoils.

Very interesting video that made me definitely understand the interest of turbofan engines

What a fantastic and informative video. Thanks for breaking it down for all the dummies like myself

I had no idea about the ram air effect on jets! Thanks for the explanation :)

This is one of the most informative aviation videos I’ve ever watched.❤

Love to see a review of the Syber Jet SJ30i, tks, your excellent compassion.

Love the leasons. A real game changer for the industry! Thank you.

Muy buena explicación. Gracias!

I have flown both the Epic E1000 and the CirrusJet extensively in XP11 and XP12. The Epic is an absolute beast. I've flown them both round the world. It was much easier in the E1000. You need to get up to altitude as fast as possible in the CirrusJet. The only thing to recommend it is that you don't have to manage the prop speed, and more modern control systems will remove that need too. But that con comes with the pro of having Beta, the E1000 can really stop fast on short field landings. That leaves what? Not having a prop in front of you?

Superb explanation! 👍

Great video. Thanks for the explanation.

Had to laugh at the totally genuine frustration felt at 12:09 😂 Thanks for the video, Austin

Very interesting, great video.

Great & informative video. Presented in a much clearer and concise way than when I initially trained. I’m not so lucky to personally own a jet but do own a 310 as well as a T210. The jets I fly will always be owned by others. With that said, as a plane owner and consumer I geek out on performance and planes. Cirrus is the most overhyped, overpriced plane in history. Marketing genius. Instead of telling people the parachute was a addition due to its poor stall characteristics we’ll market it as a “safety” feature. Not surprising that the jet is overhyped as well. The Epic is truly epic. That is favourite plane for personal GA purposes…Awesome bird. Thanks again for the awesome breakdown.

The lack of ram air effect really is the nail in the coffin

Excellent presentation.

Very nice explaination very professional thanks a lot

That was excellent and very informative, if I find 3 or 4 million down the back of the couch I will not be buying a CirrusJet.!

Frontal area of the wing of the Starship was a killer for it.

EXCELLENT VIDEO. YOU ARE A GREAT TEACHER

So for whom is the Cirrus intended? C172 cats who win the lottery...?

great, informative video.

Awesome explanation ...!! Thank You for sharing .. Cheers :)

Wow, what a great video, I learned more in this video than I didn’t high school lol.

Speaking of efficiency, my Flight Design light sport does 124 knots at 4.4 gallons per hour using car gas.

W Epic. Nice work Doug. Thank you for the excellent video Austn .

amazing information, i'm definitely subscribed

A big factor that is overlooked is insurance! Vision jet requires FAA certification and you have to keep your type rating current with check rides. It is an easier plane to fly than a TBM and the insurance coverage can be less than half the cost of a TBM for the same pilot hours. TBM's are more complicated to fly-especially on landing. Vision jet is meant for a seamless transition from an SR22 for owner operators. TBM's are more geared towards professional pilots.

Excellent analysis, Next one with the Piaggio Avanti!. Also, how the Celera Increases the Frontal area and still be efficient? Because the small and thin wings? Or the high alttitude flight envelope?

In a nutshell, the CirrusJet should have never, ever been a jet. It would have been better as a turboprop. Jets really only make sense, if you go above M0,6. Go slower and all you do is burn extra fuel.

Very informative. Thanks. Honda Jet vs TBM 950?

So, would the SF50 be a better aircraft as a pusher turboprop? If you put in the Epic 1200 shp PT6 & prop aft of the v tail, would it give it a more useful load?