 Let's pull it up for a second. Whoa! Well, that's a bummer. Now we've learned that we need to treat this with safety. Oh! Oh! Oh! Did you get hit? No. No, did you? I was hiding behind you. I guess you could say the pteridals are torn up. Yeah! Yep, right away. Three, two, one. That's actually super satisfying. Bubby is the best product that I've ever seen. Guys, look what I got. You know what these are? Bags. These are pteridial props. Remember from like six months ago when everyone was like, oh no, not these. I got them, bro. Is this a time machine? I don't know why we're doing an episode on this. Well, and these are called donuts? Yeah, so these are called the donut props. We've tried to make these in the past with 3D printed stuff, and we've actually filmed a lot of content on it, and we have never gotten them to work. They exploded every time. I think I want to see are there any benefits? Go ahead and get them on your quads. Actually, I already put them on your quads for you. Oh, really? Yeah. Thank you. All right, I'm going to just start with the line of sight test. Take it off. What's that? Sounds like a bi-blade. Yeah, so I don't think it's much quieter. I just think the pitch is a lot lower. I mean, at least from the quads that I've seen. I mean, it almost is a bi-blade, right? Yeah, I mean, it's kind of like a quad. Well, they're attached to the point. Like a bi-blade. Yeah, fine is good actually. I mean, how does it handle from your line of sight? Better than a bi-blade actually. But I'd have to do a bi-blade side by side. Yeah. I feel like this is closer to the sound of angry bees. Yes. I mean, would you give it a little full throttle blip? Let's see. Like what? Here we go. It's louder. It is louder. I think it's louder. I think it's louder in the higher throttle, but when you're hovering, I think it's a little quieter. I don't like it. You don't like it? I don't like it. Yeah. And the prop wash channeling is pretty good. Yeah. All right, let's go ahead and do a little FPV test. They look cool. I will say. I mean, just looking at them static, they look cool. No, they don't. Why do they? The fact that it flies is just cool. They look like little bow type hostas on your quad. That's it. Wow, it actually flies good. No, shut up. You got one flipping. No, no, don't just do that. I mean, does it have a pitch? It's a 5 inch prop. So this is a 5.1 inch prop, and it's a 4.5 inch prop. If I could say it's as good as the J37s, but if you blind tested me, I would be like, eh, it flies like a bi-blade, but pretty good. You think it actually flies like a bi-blade, wouldn't it? A little bit, a little bit like a bi-blade. It sounds like one. What's interesting is that it has the four blades, but it doesn't actually sound like a quad blade. You think it would have a high pitch, whiny. I wonder if you've broken one yet. Let's try going up really high and then just try to catch it with full throttle and see if the pressure. All right. I'll just see if you can explode it. I mean, I'm curious. Oh, sounds bad. It does sound a lot worse right now. I'm curious if you broke the plastic already. Yeah, I mean, it definitely is flying worse. Yeah, so go to 399 and just, all right, let's see. He's coming down. Oh, I did it. Oh, that was full throttle. That was full throttle. I mean, it's 45 pitch. Yeah, 4.5 pitch. It's got the catch. I honestly thought that the ends would just flex up and snap. We don't know what. Honestly, just flies like a bi-blade, to be perfectly honest. Yeah. If I was listening to music and I didn't hear the sound of it, I would assume that it's just a bi-blade prop, like a good one too. A good bi-blade. So if you fly bi-blades right now, fly. No, I'm not saying that. But I will say it's, because I don't know if there's really advantages to this than not. But I mean, it's pretty efficient. Like I'm not pulling as many amps. Yeah. I might break a prop here doing this trippy spin. It's definitely not quiet. And it's not anymore pleasant of a sound. No. It's not more pleasant. I don't like it at all. Yeah. It's quieter in the low range, but it's louder in the high range. Yeah. I think what they're saying when they say it's quieter is that when you're just cruising along, like for your everyday delivery drone or like camera drone, that's really just gonna be putting around. That's when it's supposed to be quieter. Cause yeah, if you just hover, like if you just cruise, what's it sound like? That just cruise real quick. It's quiet and it cruise. It sounds like a gamad then kind of. It does. It sounds like an inspired tune or something. And so that seems a little quieter. Yeah. Yeah. It's not. So when you were bringing it in. So the prop is definitely up more. Like it was, you know what I mean? Like it's, is it? Yeah. And when I saw it, it was wobbling. Yeah, I believe it. Oh, oh. This one snapped. Yep, snapped. Do you see that there guys? This one snapped right there. Did you hit something at all? Maybe it's possible. I don't think I, I never heard anything though. I can really see it in here. Oh, there's so thin. But like, look here. I definitely hit something because you can see, even though it didn't break here, like it definitely rubbed on something. I'm not going to switch to it, but I will say like if you had just put me with like a pair of headphones on, I could tell something was up just by like the FPV. You could see like the prop was like weird. But how does he fly it? I would have just told you it's like flying a bi-blade prop. Obviously they crash it. I fly the HQJ37. It's a three blade prop. Three blade of props are what I would say 99% of FPV pilots fly. It's just kind of like the best balance because the thing with props is, you know, you have two, three and four blade of props is your most common props. Like bi-blades, which are two blades are generally more efficient. They're less draggy because you have a less blades. And so they're faster in the air. The downside is they're not as grippy without that extra blade. Quad blades are the exact opposite. They're kind of slow in a straight line because they're draggy. They're not very efficient as well, but they have tons of, what we would call it, grip, I guess, with a quad. And that's where we find the tri-blade is the most popular because you get the balance in both. Also, with four blades, that's more blades that you would bend and break and crash is. Bi-blades, not so much, I guess, which is a positive, but they're also like really hard to balance because I don't know. That's why you fly the tri-blades. So what is this like, I see four blades, but it's connected. So what is like a bi-blade? I would say that it doesn't fly like a quad blade. It flies like a bi-blade prop. Even though I guess, technically, you could argue it's a bi-blade or a four-blade prop. I mean, so this back one is really weird. Like, is this actually catching air? Like this one is definitely a scoop shape. But it's weird that it kind of like, you know, goes out. So I don't even know like what the air is doing. What I heard is it's supposed to like channel the air through the hole. What? Are you joking or is that? No, seriously, seriously. It's supposed to like hit through the air. So the end basically catches the air from going this way. Yeah, it keeps the... Interesting. I want to see you fly. Yeah. I mean like, I don't really need to see a durability test because I didn't really hit anything. I mean, we already know it's gonna snap. But I mean, we'll find out. Here, this one's broken already. Let's just see. How easy it is. It's not snapping. It's not snapping, but I think it's gonna pull. I think it needs to be spinning it. Look at the way it's just... Maybe five and a half inch. Try this one now. No, no, no, no. Let's see you fly. Cool. They're actually, yeah, no, they are, I feel the pitch, the higher pitch. Oh, but no, but then once you get like high up, they kind of drop off, don't they? Half of the throttle? Yeah, but you never go high up to the throttle. No, but, well, I blip. And if I can't blip. Yeah. You have to blip a little bit more. I told you they fly pretty soon. Yeah, they fly pretty good. Right? Surprisingly. See, you guys thought it was crazy. I mean, it's only James's story. I mean, I do think you're crazy, but... That's about the props. I'll be honest, it was just not what I expected. That's why I was like, I thought you were just joking Yeah, and it catches just fine. Like they're not underpowered at all. You can do tricks, like I'm doing all the tricks. I'll probably not trippy that one. That's trippy. Oh, wait, I'll wait for the trippy. Yeah, do that again with that type of stuff, yeah. On this thing. See if I come out of it. Don't like me who's very low in the throttle all the time. Yeah, it is pretty quiet. Although, I mean, you'd have to compare it to how it sounded with the other props. I was pretty quiet with regular props too. I mean, you were flying a little bit earlier today, I can hear it. This is definitely quieter. This is definitely quieter. Yeah, it's more pleasant when I fly it than when you fly it. Whoa! Oh, no, no, no! Oh, the durability test. Oh, those are, no, they're jacked. I can see it already. You can dip. I mean, let's go look. Don't burn motors, but... Oh, that's... Oh, they don't like the turtle. Will it turtle? Ooh, that's a good point. We never talked about turtle mode. Okay, I just see it clouded for us. Yeah, no, they don't turtle. When I walked over there, the first thing I saw, like all over the floor, was just like little blue bits. What? No! Hey, that one actually looks good. What? No way! No way! This one could fly. And these two couldn't. And you have three blades left. That's really bad durability. That's weird. I mean, we didn't expect it to be durable. I mean, he was turtling. I've never seen a prop explode in a turtle mode. No, I've never seen him just destroy the hub. Yes! Well, give it a point. Let's give it a 1.5 or 1.5. Well, Bubby, I think you need to fly mine. Yeah, because I've been flying your quad a bit, so I'm pretty cum. Yeah, he's been flying my quad because someone's got two quads on the mountain. Yeah, I'm not gonna talk about that right now. So. Three quads at this point. I mean, the one of them wasn't even mine, but I did crash it. The basin mountain. Yeah, all right, let's see. He just goes immediately for the punch. Oh man, he's gonna like. Yeah, you're in a little, like, spang flying earlier, so that's way louder. He's so loud. I bet he gets. I bet he definitely lacking power. I bet he gets 90 seconds. No way it flies that power. Where, at the top? Probably because they're flexing out. Yeah, at the blips. Oh yeah, they're probably flexing. All right, let's get some flying. You know what would be fun is to put these on like a re-squad. It's not so bad when you're just like, low throttle, just flying it, well, there it's kind of long. It is well-flowing, it's fine. Let's see. I mean, they don't, yeah, like your quads fly still smooth on them. Right? It's just, yeah, I don't know. I would've thought that they would've like vibrated all over and just like, or been lacking in power or something, you know, like some deficiency from being in that weird shape. Oh, I tapped a little tree branch there. It's all right. Yeah, it seems like the only bad thing about them is the durability. Yeah, I think that's the only like major deficit that I'm saying, but like. I wouldn't say there's any advantages. I will say they are smooth because they're just kind of underpowered, at least in the top end, like it's very, yeah. Definitely not as responsive as something like the J37s that I fly. Do we have a weight comparison? Are they heavier? They gotta be lighter, right? Just that thin blade. Right. But there's one more. You can tell the props and you go full throttle that you're like, you can hear them flexing. Yeah, yeah, yeah. Which never happened to me because I don't do that. Oh, there we go. I didn't crash the trippy spin. Let's see. Gonna hit this gap. No. Yeah, no, I mean, they're fine. Like, I don't feel. That is a little obnoxious. It's very obnoxious. It's a, I'm trying to think. It's like a ring, it's more of a ringing sound. Like when it echoes. Yeah. It's like a hollowness to it. Like a. Yeah. All right. Explode them now. They look smooth. Like they look good. I mean, you're flying really well. Yeah. Oh, we should check the motor. See if it's like, they feel. They felt fine. They felt fine. Yeah, they felt fine. Not cooler or warmer, just kind of. That lens flare is so bright. I can't even see. Right. I thought Bubby's only gonna fly for like 90 seconds without blinking them. You would be interested to try this out on like a lifter. Like, eight motor, five inch. Turtle, okay, out of turtle. Oh, let's see if you can turtle. Oh wow. I don't want to burn the motor up. Yeah, he's gonna burn the motor up, but it would have taken off. Appreciate you not wanting to burn my ESC out. It would have taken off though, it looks like. I mean, it's never a good idea to like limp your quad home because with like a broken prop or bent blade, you can really burn out an ESC or a motor very easily. Oh, it doesn't look bad. So two of the props are fine. One of them split, the other one's like definitely broken. So this was strictly from the crash because I didn't really try turtle-moting, so this was like a good AB comparison of when you try to turtle-mode, James squad. Motors are pretty toasty actually. Toaster than they would be with, I mean that one's bent, so that one's gonna be, like even feel like these. Don't ride one wheels. Respect the wheel if you're going to. Yeah, I feel this is a little bit warmer than. All right, if you guys do wanna test these props for yourself, we do sell them at Rotorite.com. There will be a link in the description to where you can purchase them. I think it's a fun experiment. I think it's worth maybe buying like a pack next time you order from us, but. If you wanna look cool, these are great props for you. But that's really it. That's all it is. I mean like there's really no other benefit to them. They look cool, they do fly goods. It's a conversation piece. It's a conversation piece. They don't look cool. Death blades, okay, look at these. Look at their sharp like knives, like swords. Three big swords just coming off. What is this? What is this? A loop? I don't get them. Or if you wanna get them, they're on the link in the description. Thanks for watching guys. I'm Alex. I'm Bobby. I'm P-Dev-X. See you next time.