 Come back at us? Yeah. Foto, photo, photo. Whoa! This is EDFPV. Oh my gosh. That's what I'm calling it at least. These are... What is this? EDF? EDF motors that you typically have on like a foamboard jet. Okay. Matter of fact, I got the idea from QuadMover. Just recently I saw one of his YouTube videos and he was flying something similar to this. But when he flew his, he didn't have FPV on it. I thought it'd be really cool to stick FPV on one and see how it flies. The last time I remember seeing anything like this or hearing about it was back in the flight test days. And they talked about how bad EDF motors were. I figured maybe 10 hours had changed. Well, what makes an EDF bad? I don't know. I think that maybe they're not as responsive as a regular motor. Maybe they'll be slower to respond. At least that's what flight tests experience back in the day when they talked about using EDF motors for a drone. So EDF, I think that stands for Electric Ducted Fan, right? Could you technically say this is a jet? I think it is. Is it technically a jet? I think we should say it anyways. I think we've got jet drones. So yeah, the EDF actually comes as a plastic tube with the motor mounted to it. And then I actually had to cut this frame out of G10 on my CNC router and then glue the ducts to the frame. Also, they're just glued in there, huh? Yeah, they're just glued on there. This is not the type of thrust system we usually use. Typically on a drone, we've got a motor mounted to an arm and a propeller mounted to the motor. But this is not really a prop in there. That's like a fan. What is it? Like 10 blades and they overlap? How many are there? 12 blades. So there's 12 blades. What would you say the size of this? I mean, these look like two inch fan props. Yeah, it's two inches. Finding clockwise and counterclockwise EDF motors was a challenge. Like the first time I bought these, I ended up buying... It all comes as one unit. It's not like you could just buy four motors and then buy different direction props. Yeah, like I originally bought four clockwise by accident thinking, oh, this will work fine. And then I got them like, oh, darn it. You need the spinny boys to spin in two different directions on the opposing axes. And when you want to yaw, you spin up the props that are going in the same direction to get that yaw force. If all four props are spinning in the same direction, it would just go woo. But I'm curious how much yaw authority you'll actually get out of this because this seems very heavy for what's effectively a two inch prop. Right. Yeah, it is pretty heavy. Those are some pretty big motors. It's taller than it is wide. So this is a 2611 motor. This is a bigger motor than we use on any of our five inch quads and it's all driving this little two inch fan which is telling me there's something going on here. 4,600 KV. Yeah, that's insane, right? So what type of battery? Are we using a four cell? It's rated for three or four cells. What? Put a four cell on it, yeah. 45 amps. Four times 45. I mean, that's about what our drones are rated for. I mean, that's a lot of amps. Yeah, I think we'll hit the limitation of the battery. Like, there's no battery. I don't care what the C rating tells you. I do definitely have some durability concerns. I mean, this whole thing is plastic, right? So the motor is actually suspended by this plastic duct itself and it's hanging out there. I think on a crash, if you hit that bell, you're probably just going to shatter this thing. So I would not call this crash proof. These were made to be glued into foam board airplanes not hung off a G10 frame and power loop. You typically don't crash a foam board airplane very often. Yeah. You're not flying it again. Yeah. Come on, let's fly this thing. I want to see what this thing can do. Maybe it's going to just rip by like a five inch. Maybe this is the next wave of drone. Maybe. I think Banggood will clone this. I cannot believe. Did you see they did bone drum? A nice one, too. It is nice. I kind of wanted to buy it. It's so fun. Banggood, that was a joke. We got you, I guess. We weren't trying to get you. All right, rock, paper, scissors. Rock, paper. All right, you got it. Yeah, where should we take off? Because the motor's on the bottom. I don't think I want you jumping it off the table. So when you arm it. Oh, God. It goes a little while. Should we hand launch it? I mean, I guess this is actually totally safe to hand launch. Yeah. You would have to try so hard to get your fingers in there. Yeah. Yeah, let's hand launch it. Arms. Oh, boy. Oh, it's instability. Okay, now it's an acronym. Oh, no way. Oh, my God. I can tell this has a lot of power. That's crazy. It is not at all stable. Like it feels very badly tuned, but I just also think that's just a function of the motors. The sound is so crazy. It does sound like Jets, doesn't it? It's quieter than I thought it would be. I think it is. I think it's pretty loud, man. All right, bring it up close. I mean, it's in like a CineWoop, right? It's going to be quieter than that. I guess it is. You're right. Or at least maybe the tone is more pleasant. I don't know. I think the tone is cool because it sounds like a bunch of little jets. So this was fully charged when we started. I'm already down to 15-3, and I've only been flying for about 57 seconds. So I don't know how efficient it is. I think it's all right. I mean, at full throttle, it's sag down to 14-7. That's not bad. So this is when you just send it, right? So you do a trick? Yeah, no, I'm just going to do it. I'm just doing a shake down run. I'll let you do the first trick. I'm just flying through some gaps. Yeah, it's really bobbly when you see it. Like it doesn't have, it seems like any authority. Like it just drops, huh? Yaw is fine. I was very concerned about yaw. I didn't know how much angular momentum you'd actually get out of those little ducted fans. But yeah, it's working just fine. No problem with yaw. All right, I'm going to do one roll. I'm going to do one roll. I'm going to come over so you can get a good big roll. All right, I'm going to do it. Three, two, one, roll. Whoo! Did you see that snapback? Yeah. That was really weird. I don't know if I got that. Well, it was like you didn't make the full roll. And then when you applied throttle, it kind of wanted to... All right, I'll try it again. Three, two, one, roll. Whoa! Okay, if I ever, anytime I go low throttle, so here's what I'm doing. I'm just cruising here. I'm chopping throttle and getting back on it. I have to be really smooth. I'm trying. Look how slow I get back on the throttle. So chop and just bleed onto it. And it still bobbles. Like if I really get aggressive with it, like chop and get on it. Oh! It seemed like it was going to fall out of the sky there. So you really have to like, I think that's what it is. It's not responsive. So like the PID controller, I think is like too fast for it. Or it's very responsive and we need to lower P. I don't, I can't tell. Okay, there, I got that roll a lot smoother because I just went way slower on reapplying throttle. So rather than like catching it, like making it really snappy, I like, I'm going to stop while rolling. No, no, no, no! What was that? I was just totally went crazy. It looked broken. No! No! Oh no, it's on tape. It's on tape from this piece. Oh, because you mentioned that. You mentioned that there's two plastic pieces and they were just taped together. So we could just put it back together and re-tape it or re-glue it. Of all things to fail. Yeah. I was wondering if I should have put a second that bead of glue around it. The motors are pretty warm. The basic rule is like if you can touch it, then it's not too hot. That's what people say, but that seems pretty hot to me, but maybe not too bad. It's like if you can touch it for a few seconds. It's just a little tape. So this thing came in basically two plastic pieces, the one that has the flare to it, the actual airfoil, and then one that's just a tube. And I guess it was just taped together. Dude, I'm sorry. I could not like, it just went until like a death wobble. Well, I wonder if it came loose. While you were in the air. And then I would think that might have what happened because it seemed like it was doing fine, but then it was just like nothing. Like I had no control. Let's see if we can fix it back up. I wonder if it's going to fly better just from having the reinforced tape. Yep. Give him a throttle. Oh, oh, it just died. Did it? Yeah. It stopped. One motor's not spinning. Oh. All of them. Woo-hoo! Whoa! It went like turbo mode. I think one of the motors may be bad. And you know how it limits power to the other motors? One motor, one motor goes bad. It'll limit power to the other three. That's what seems like what's happening to me is that it's shutting down one motor and the other ones are compensating. I think it's that front left one was acting up. All right, guys, so it's kind of a bummer that the EDF drone didn't work out because James was pretty pumped to fly one of Sean's weird drones. And today is his last day in Orlando. He's getting on a plane in four hours. And we were just at the warehouse getting ready to get him packed up and Sean shows up and Sean... I got it fixed. I got it fixed. What'd you do? I mean, what'd you have to get done? Well, luckily I knew this was going to happen. So I automatically ordered six motors instead of four. So I had to basically cut off two of the ducts and glue on two more ducts and resaw the motors. But we're back together again. We got four working motors. Hopefully it goes better this time. We don't have any spares, right? That's it. No, this is the last chance. All right. It's alive. Not dead yet. All right, we'll just do a little cruise around. It looks so cool. Oh, yeah. I mean, line of sight, it looks wicked because it's got these four motors hanging down. Why is it so much better than you would think it would? Get a little more juice. All right, let's see if we can... What about a high speed? Oh, okay. Wow, okay. All right. Yeah, yeah. What's the voltage? No, it's nothing. Like 15.4 from 15.8. So, like, yeah, it seems pretty efficient. All right, we got the radar gun ready, but we got a low battery. Yeah, come towards through. That was pretty quick. I mean, considering how small of the area we're in. Yeah, try to come from a farther distance away. Yeah, full throttle from all the way back there. Yeah. That's better. Oh, yeah, 70. 70, okay. Yeah, that was... Okay, okay. I mean, it's ducted, so I can't hurt you. Drop it. Hey! It landed this time. It landed. Is that the first time we landed it? Yeah, I think so. This is the first time we've landed this block. Okay. So, you think that was all that you could give it? 70? That was all the way up. That was up all the way. Yeah, I mean, we could throw one more on, do it right the first time. Yeah. And then maybe we'll get a fast battery. I want a full charge battery. Okay. I mean, jets are supposed to be fast, right? Yeah, when you use the EDFs with planes, the whole idea is it's really fast, right? Yeah, it's really fast, and you're not supposed to slow down very much with them. Oh, nope. Oh. That was it. Did a... I think it lost a motor or something. I went full throttle, and it would just... No, again. I mean... I think as soon as I applied throttle, it was... Pretty sure it's going to be toasted. I think it's more broken than the last time it was broken. Yeah, it's done. Oh, yeah, we broke it again. EDFs are bad. Don't do it. That's the lesson for today. EDF drone. Bad idea? I mean... It was a fun idea. Yeah, it was different. It sounded really cool. It did sound like a jet. It looked interesting. 70 miles an hour may not seem fast relative to some of the really fast drones that we've seen here before. 130! What were you saying about this? Yeah, I mean, what's like the fastest 2-inch drone that you've ever flown? Right. Right? Yeah, I guess. If you compare it to a 2-inch drone, then this is incredibly fast. It's got a ridiculous amount of thrust coming off the bottom. Yeah. But I'm not sure you could compare this to a 2-inch drone because it's using the same battery we would use on a 5-inch drone. It weighs about the same as a 5-inch drone. These are very beefy motors. These are bigger than the motors we use on our 5-inch quads. I think what was most interesting about this, it continued to accelerate for longer. Like, these motors seem to just continue to... It takes a lot of spool up. Right. So you might have been able to get it even faster if you've been able to start further back and hold full throttle for longer without it just rattling itself apart. Yeah, I think we did a couple more attempts at it to figure out what the top speed actually was. You know, I think we got a decent idea. It just... it was too much power! Yeah. Too much power for hot glue and tape. Yeah. And that's the other thing is just building this was obviously a challenge. Yeah, right. Yeah, I think if I designed the frame a little bit different, I could have made it a little bit stronger, but we're still dealing with plastic. Yeah, I think you approached it as you normally approach putting things together, which is make the frame really tough. And this frame... Yeah. You're not going to break that frame. It's a really tough frame, but the frame is by no means the weak point. It's these motors that... oh yeah, I feel like I could just break it. Yeah. Just like if I just cranked it. Yeah, there it goes. Yeah. It's not practical. No. But it was cool to see and it was cool to see just a different type of motor used. I mean, there's a good reason why we use outrunner motors with direct mounted props. And there's a good reason we've settled on five inch props for most of the freestyle we're doing. I mean, I think the thing that surprised me the most is how well it flew. Yeah. I didn't think it was going to maneuver as smoothly as it did and have the throttle response that it did. Even though it took a little while for it to wind up, it flew great. Yeah. So guys, if you enjoyed this video, hit a thumbs up to let us know you had a good time. And if you're new here... Don't forget the bell. If you want to make sure you don't miss out on any of our future episodes. Guys, I'm Ledrub. I'm Let's Fly RC. I'm P. Devex. And we will see you next time on Rotor Riot. Woo!