Testing BLADE VORTEX Interactions with Devin Supertramp

Testing BLADE VORTEX Interactions with Devin Supertramp


So I think drones are some of the coolest
technology of this year. Today we’re going to review a couple of these
drones, starting with the Spark and working our way all the way up to the Inspire 2 with
my buddy Devin Supertramp. He’s unpacking that drone right now. We’re going to fly them here inside Devin’s
office, and we’re going to measure the decibel levels of the props and talk a little bit
about the drones individually. And, I have an extra DJI Spark that I’m going
to be giving away at the end of this video. So stick around for those details. Let’s get started. [Intro] Alright so these are all of DJI’s drones. We’ll start here with the Spark, we have the
Mavic Pro, and then we have the Mavic Pro Platinum which is a drone that DJI recently
released. There are a couple minor differences – mostly
in the propellers. You can see the shape difference between the
regular Mavic Pro and the Mavic Pro Platinum. We’ll talk more about this in a second, but
apparently this is supposed to be slightly more aerodynamic, a little bit quieter, and
because of that, there’s a little bit more flight time. Then we have the Phantom 4. These props are not collapsible and it’s not
as portable. We’ll talk about that in a second. And then here we have the Inspire 2 which
is an incredible step up from all of the lesser drones. This drone right here belongs to my buddy
Devin who has a channel called Devin Supertramp. And Devin, tell me why you chose this drone
over all of the other ones? [Devin] So we really started with the Phantom
4 and absolutely loved this drone. And then we upgraded to the Inspire 2. You’re looking with the whole package – $10,000
plus. But for us, we do this as a business, and
for us we work with a lot of different companies filming commercials so this is a commercial
drone. As far as like they even use this in Hollywood
for a lot of stuff as well and it films in 6k. It can go extremely fast. I want to say that they say you can go around
55-57 miles per hour. Super fast, the image is incredible, super
stable. [Zack] One thing that I want to point out
is that the sensor size of this drone is huge. Like if you look at that compared to the Phantom
4 – like the sensor behind this thing is going to be so much smaller. And even more so with this Mavic Pro Platinum. [Devin] As far as like going cinematically
– that has to do with the lenses. So the lenses on the actual Inspire 2 are
interchangeable. Here we have a 16 millimeter, a 35, a 24,
and a 50 millimeter lens that we can hot swap to get that super cinematic look. [Zack] Alright so jumping back to resolution
we have a DJI Spark which is the cheapest of all of these drones. I think this one is right around $500 for
the whole package. It’s got an extremely small sensor, does 1080p,
but it’s still a good little drone. But the reason for this video today is the
newest drone that DJI has released called the Mavic Pro Platinum. You can see that the Platinum is a slightly
different color than the regular one back here. And with that different color there’s a slight
increase in price and a slight increase in flying time. It can fly an additional 3 minutes. So instead of 27 minutes of flight time, you
have 30 minutes of flight time. I don’t know if that’s worth the extra price,
but it’s kind of fun. The reason for that slight difference in flight
time is because the propellers are quieter. I think there’s less drag. I’m not an expert in aerodynamics, but because
of that less drag, the propeller isn’t making as much noise and it can support itself for
longer. Right now we’re going to take this little
device right here which measures the decibel levels of the drones and we’re going to see
which drone is the quietest, which I think we know which one that is, and to see if there’s
a difference between the Mavic Pro and the Mavic Pro Platinum. And finally, we’ll finish off with Devin and
his super drone here at the end, and we’ll see how loud that thing really is. [Devin] Or how quiet! The size of the blade is actually roughly
two and a half times bigger than the drone itself. Slight disclaimer, I’ve never flown this drone
before, so we’re going to find out how well it really flies. I’ve already seen the big guys. So the little guys will be a whole different
story. [Zack] Alright, so we are currently going
through technical difficulties. We have to update the Spark before it will
take off inside of there. So while we’re waiting for that, Devin, where’s
the most interesting place you have flown your DJI Inspire? [Devin] The scariest place – Easter Island. We’re always traveling all over the world. Easter Island though, we didn’t realize like
you’re not aloud to fly drones at all on that Island. So we took off and within a minute, minute
and a half, we were surrounded by police officers. They grabbed us all, they threw us against
the car and they made it very apparent that you are not allowed to fly drones on Easter
Island and they took the drone and they said if we took off again that they’d put us in
prison. We didn’t fly for the rest of the trip which
was a bummer because we fly halfway across the world to fly a drone and then all of a
sudden we’re not allowed to fly it at all. We did our homework and we’d seen other people
that had flown drones out there, but they must have done it super under the radar. But it’s the Island with all the crazy rock
heads. And I mean that place within itself has it’s
own amazing history. Crazy insane place. [Zack] What’s this one right here? [Devin] So this is New Zealand. We actually flew a drone there as well. This is Hobbiton where they actually filmed
Lord of the Rings and The Hobbit. So we got special privileges and special access
from New Zealand tourism to fly there. And each one of these pictures has their own
story. This was on the back lot of Universal Studios
for our Overwatch video, which actually, it’s a long story but we’re not allowed to release
it for legal reasons, so you’ll never see that video. [Zack] We should be good to go. [Devin] Three, two, one. [Zack] Alright, so we’re about a foot away
from the blades right now…the propellers…and it’s about 91 decibels going from the drone. Was that you’re first time flying this drone? [Devin] First time flying the Spark, and no
crash landing! [Zack] Okay right now this is set to attract
the max decibel level, you know, the peak that it reached. So the peak that it reached with the Spark
was 94. Now I imagine that the decibel level between
all of these is going to be pretty darn similar. But let’s try the DJI Mavic Pro. It’s almost double the size of the props. We’ll see if it’s twice as loud. Alright so now we’re going to take off with
the Mavic Pro. This is the second time Devin has flown one
of these. The first time we were in Hawaii right? And what did you do with it? [Devin] I almost destroyed it, and it got
so bad that you actually had to take the controller away from me. [Zack] We were at Jurassic Park. I think it’s a video on What’s Inside’s YouTube
channel But Devin was flying it around and he went through some really tall weeds. He’s getting a second chance here. [Devin] Second chance – time to redeem myself. Stand back a little bit. Safety first. [Zack] So right now we’re registering about
85. It’s actually lower than the Spark so I’m
surprised about that. [Devin] You see that?! [Zack] Did you almost hit the ceiling? [Devin] I’m not going to do it again! [Zack] Alright, so that time we were at 89.9,
which is a few decibels less than what the Spark is. The decibel scale, I think it’s like a log
base scale, so it’s not like an exponential scale, but it does go up considerably with
each 10 sets of decibels. So this is DJI’s newest drone, the DJI Mavic
Platinum. I think it’s going to be a little bit quieter
than the DJI Mavic Pro. So these are the 2 propellers that we’re looking
at. You can see the propellers for this one are
just like, you know, straight out, and then these ones are shaped differently. Now, I’m not sure what the aerodynamics of
the blade has to do with it but let’s see how much quieter or efficient this is. [Devin] Step back. [Zack] Take one. So just off of your ear alone, what do you
think? Which one is quieter? [Devin] This one by far is the quietest. Substantially in my opinion. [Zack] That one ended up being 83 which is
7 decibels less than the 90 from the previous Mavic. So it is considerably quieter. [Devin] Which my mind’s blown because this
one’s so much smaller, so I would have initially thought this would be much quieter. [Zack] The reason helicopters make noise is
something called the blade vortex interaction. And the sound you hear from a drone or from
a helicopter is the sound of the blade hitting that pocket of air, or that vortex from the
previous blade, because you know, the way it’s slicing through the air. And so I imagine that however this tip or
this fin is, it’s minimizing that vortex effect and minimizing the sound. Because this one was considerably quieter
than this drone was. So my question is now that we’re going back
to the older shape when we jump into the DJI Phantom, or your drone, how much louder is
it really going to be compared to these ones? [Devin] The moment of truth. [Zack] So going back to the blade vortex interactions. So this blade, even though it’s super small,
the pocket of air it creates could be what’s making it so much louder. It is interesting that the smaller drone is
the loudest so far, but I think that’s about to change with the Phantom 4. [Devin] Stand back boys and girls. [Zack] We’re at 94 at the hover. So we’re at 94 at a hover, and then a 95.9
at, you know, the full max. I think like snoring is like 40 decibels and
a jet plane is like 120 decibels. And this is at 96. We’ll just round up and say 96. So it’s pretty darn loud for a drone. If you’re going to go for stealth, none of
these drones are going to be good. But so far, the Platinum is the quietest. [Devin] Alright, so taking off the Inspire
2. These I’d feel much more confident hitting
your fingers. This one will cut off your fingers. So it’s like sticking your hand in the blender
so stand back a little bit more than normal. [Zack] I’ll try to avoid that. Yeah, at peak this was 97.7. So guaranteed the loudest drone is the DJI
Inspire, but I’m curious if DJI was able to make the smaller props quieter, do you think
they could put that same style on this and make the bigger drone quieter? [Devin] I want to say yes. And then actually the Inspire 2 has 2 different
kinds of blades already. These are your standard ones. We also have high altitude, so when we’re
out here in Utah and are higher up elevation, the air is thinner so those actually handle
differently too. So I’d be curious too if those sound quieter
than these as well. I was looking over here because I was afraid
this picture was going to fall down, but it is now crooked. So the whole picture went like this from the
air pushing out this way. So this is definitely the most powerful. And even though we saw the 97.7, I wasn’t
moving fast at all just because…but if you’re taking it out going 50 miles per hour I think
it was going to be much different than all of these drones combined. [Zack] Either way, all of the drones are extremely
loud. There’s going to be no sneaking up on anyone
with any of these things. The thing that I am most shocked about though
is that the littlest drone was not the quietest. The quietest drone goes to the DJI Mavic Platinum. But have you ever gotten in trouble for shooting
with a drone before? [Devin] Yeah so I have gotten in trouble. Full disclaimer, just saying how it is. Six months ago we were filming in Ireland,
give or take, and we were filming a Skallig Michael. That’s where they filmed the last two Star
Wars movies, episode 7, and episode 8. And a very famous part is where Luke meets
Ray or Ray meets Luke. And we took the drone from a boat and we were
flying over the island. And going back to what we were just talking
about as far as the loudness of all of these, you can’t fly a drone in bird sanctuaries. We were outside of the sanctuary but it was
still loud enough that it felt super close to them. So they actually had to radio us in and tell
us to kind of not be as close to the island as we were. There are pros and cons with having a big
drone. A con is definitely how loud they can get. We would have had a much easier time with
a smaller drone, but we wouldn’t have gotten the cinematic shots that we got with this
one. [Zack] Star Wars Island video you shot with
this drone is coming out today, right now. [Devin] Today, right now. Check it out on the YouTube channel Devin
Supertramp. A lot of work went into it and it’s one of
my favorite places in the world. One of the most mysterious places. It has incredible history and you’ll see that
history on the video. And it shows you a sneak peek…no spoilers
in the actual video for Star Wars, but if you have any interest in Star Wars, it goes
over the history of how they made things happen for the actual movie. So I think any Star Wars fans are going to
be stoked on it. [Zack] That will be tight. I’ll leave a link for that video down in the
video description. You can check that out. And if you have not seen Devin Supertramp’s
channel, I’ll leave a link for that as well. Thanks a ton for letting me use your office…[air
conditioning turns on]…thanks a ton for letting me use your office and your Inspire
2. I super appreciate it. I am not about to go out and buy one of these. How much did you say it was? [Devin] Around…just for the body itself
it’s $6,000, but once you start getting the batteries, the camera and everything else,
you’re ten thousand to thirteen thousand dollars into it. [Zack] Wow. So drones are expensive, but the consumer
drones are way less expensive than this. Now these are are essentially the same drone,
so if you already have the DJI Mavic Pro, you don’t need to go out and buy the Platinum,
just because they’re essentially the same. You get three minutes more flight time and
it’s slightly quieter. If you’re trying to decide between these two,
definitely go with the Platinum because of those small differences. [Devin] So everyone crashes a drone. The Inspire 2 – we’ve crashed 3 of them. One in the ocean, sad story, but if you’re
going to crash a drone if you’re just flying or even if you’re professional, so it’d be
much better to get a smaller cheaper version, make mistakes on this one before you start
getting these other drones. So definitely keep that in mind as you’re
considering which one to get. [Zack] So I have an extra DJI Spark that I’m
going to give to one of you guys. Now this is a white version and it’s got like
the full package in it with the controllers. I think it’s the fly more package. Either way, it’s coming to you guys. I’ll leave a link in the video description
for that. Thanks a ton for watching. Make sure you check out the Star Wars video
on Devin’s channel. I’ll have that linked for you. And we’ll see you in the next one. [Devin] Over and out.

4 thoughts on “Testing BLADE VORTEX Interactions with Devin Supertramp”

  1. So stoked to have the chance to work with you my friend! Thanks for letting me be apart of the adventure, I legitimately learned a ton from the experiment!

  2. The dzb dont really tell how Loud it is
    The rpm matter more so technically the inspire should be the most silenced but another factor is the motors vs the body or weight. The phantom should be pretty loud and the inspire should be silence because it’s bigger motors but the propellers are so big and that makes the motors spin faster. The spark with bigger props should be silence then the mavic pro

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