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Testing BLADE VORTEX Interactions with Devin Supertramp

2017-12-13
so I think drones are some of the coolest technology of this year today we're gonna 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 gonna fly him here inside Devin's office and we're gonna 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 all right so these are all of DG eyes drones we'll start here with a spark we have the Mavic Pro and then we have the Mavic Pro Platinum which is a drone the DJI recently released there's a couple minor differences mostly in the propellers you can see the shape difference between the regular Maverick Pro and the Navajo a tanam 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 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 so we really started with the Phantom 4 absolutely love this drone and then we upgrade to be inspired to 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 6 K it can go extremely fast I want to say that they say you can go around 55 57 miles per hour super fast image is incredible super stable one thing I want to point out 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 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 at 35 24 and a 50 millimeter lens that we can hot-swap I'm gonna give that super cinematical all right so jumping back to resolution we have the DJI spark which is the cheapest of all of these drones I think this one is right around 500 bucks 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 three minutes so instead of twenty seven minutes of flight time you have thirty 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 gonna take this little device right here which measures the decibel levels of the drones and we're gonna 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 a maverick 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 or how quiet the size of the blade is actually roughly oh two and a half times bigger than the drone itself so slight disclaimer I've never flown this drone before so we're gonna find out how well it really flies I'm worse than the big guys so the little guys be a whole different story alright so we are currently going through technical difficulties we have to update the spark before it'll take off inside of here so while we're waiting for that Devin where's the most interesting place you have flown your DJI inspire scariest place Easter Island we're always traveling all over the world Easter Island though we didn't realize like you're not a lot of flight 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 a lot of fly drones on Easter Island and they took the drone and they said if we took off again and they put us in prison we didn't fly for the rest of ship which was a bummer because we spam a flight cross halfway across the world to fly drone and then Allison we're not a lot of flight at all we did our homework we'd seen other people that are flown drones out there but they must have done it super under the radar but I with all the crazy rock heads and I mean that place within itself has its own amazing history crazy insane place and what's this one right here so this is New Zealand we actually flew a drone there as well mrs. Hopkins where they actually filmed Lord of the Rings and The Hobbit so we've got special privileges special access from new zealand tourism to fly there and each one a 15-time story this was on the back lot of Universal Studios for 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 we should be good to go three two why yes all right so we've got a foot away from the blades right now and it's about 91 decibels going from the drone blankety was that your first time flying this drone first time flying the spark no crash no crash landing ok so right now this is set to attract the max decibel level you know the peak that it reached and 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 gonna take off with the Mavic throw 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 I I almost destroyed it I got so bad that you actually I'd take the controller away from me yeah we were at like Jurassic Park I think it's a video on what's inside is youtube channel but Devin was flying at around he went through some really tall weeds he's getting a second chance here a second chance time to redeem myself here we go I stand back a little bit safety first right about that amazing all right so that's how Mara 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 you know 10 sets of decibels so this is DG is newest drone the DGI Mavic platinum i think it's going to be a little bit quieter than the DJI Mavic pro so these are the two 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 so just off of your ear alone what do you think which one is this is by far the quietest substantially in my opinion so that one ended up being 83 which is 7 decibels less than the 90 from the previous medic so it is considerably quieter which my mind blown because this one's so much smaller so I would have initially thought this would be much quieter the reason helicopters make noise is something called the like 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 isn't really going to be the mono truth 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 stand back boys and girls so we were at 94 to hover and then a 95.9 at you know the fold max I think like snoring is like 40 decibels and a jet plane is like a hundred and 20 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 gonna go for stealth none of these drones are gonna be good but so far the platinum is the quietest all right so check out the aspire to 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 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 DGI was able to make the smaller props quieter do you think they could put that same style on this and make them bigger drone quieter I wanna 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 or higher up elevation there is thinner so those actually handle differently too so I'd be curious to if those sound quieter than these as well I was looking over here this picture was all down but it is now Cricut 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 was at 96 97.7 so even though we saw at 19.7 wasn't moving fast at all just cuz but if we were taken out going 50 miles per hour I think it was going to be a much different than all these drones combined so either way all of the drones are extremely loud there's gonna 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 the drone before yeah so I have gone in trouble both Glamour's say how it is we actually six months ago we were filming in Ireland give or take and we were filming a skellig michael that's where they fill in the last two Star Wars movies episode 7 episode 8 and very famous part is where Luke meets ray or Ravens Luke and we took the drone or from a boat and we're flying over the island and going back to what we're just talking about as far as the loudness of all these you can't fly a drone in bursts jingchou Ares we were outside of the sanctuary but it was still loud enough that I felt super close to them so they actually had a radio us in and tell us to kind of not be as close to the island we were there are pros and cons with having a big drone con is definitely how loud they can get we would've had a much easier time with the smaller drone but we wouldn't have gotten the cinematic shots that we got with this one Star Wars Island video you shot with this drone is coming out today right 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 when the most mysterious places it has incredible history and you'll see that history on the video and it shows you a sneak peak 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 gonna be stoked on it every type 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 channel I'll leave a link for that as well thanks a ton for letting me use your office and yours thanks a ton for letting me use your office and your inspire to I super appreciate it I am not about to go out and buy one of these how much you say it was a wrap just for the body itself a $6,000 but once you start getting the batteries the camera and everything else you're ten thousand and thirteen thousand dollars into it well so drones are expensive but the consumer drones are way less expensive than this now these are essentially the same drone so if you already have the BGI Mavic Pro you don't need to go out and buy the Platinum gens because like 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 so everyone crashes this John I've got inspire to we've crashed three of them one in the ocean sad story but if you're gonna you're gonna 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 giving you these other drones so definitely keep that in mind as you're considering and dream to get so I have an extra DJI spark that I'm gonna 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 will 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 I'll have that link for you and we'll see you in the next one over and out
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