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One of the printers we use for prototyping / manufacturing. This is the BIGREP ONE, the most advanced big FFF printer!
We are using bionic structure to make the Arrow Drone stable and crash proof.
This is the customized Arrow 200 for the next trailer. This will look so great with electronics and leds!
Hi, i´m flying the Ardupilot for many years now. This community accompanied me on my way into the professional multirotor industry. I´ve been working for Ascending Technologies on the Volocopter Project for example.
I´m a big fan of the work diydrones/3drobotics does for the multirotor development. A special thanks to Chris Anderson!
I always try to push the boundaries with my drone developments. The Arrow Drone is made out of hightech materials and bionic structures. This makes the drone rigid and crash proof.
We see drone racing to become the next big worldwide extreme sport this year. What makes it unique is the combination of advanced flight mechanics, adrenaline, competition and fascination. We developed the first customizable systems that make the entrace easy for beginners and give pro pilots the full potential for racing events.
The Arrow 270 can also be used for moviemaking with the upgrades (brushless gimbal and GPS). Due to its compact size (see the comparison to the Phantom 2 in the trailer) it is perfect for traveling. Im thinking about building the Pixhawk as an upgrade into the Arrow 270. What do you think, would it also be useful for racing?
If you like the Arrow Drone and you want to join the adrenaline packed action sport drone racing that get one of our affordable systems. You can save even more money on our preconfigured teampackages:
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Comments
@Josua
The struts/arms and body are not aerodynamic and they block prop thrust.
Saying it is as aerodynamic as an arrow doesn't make it so.
Arrow Frontal area:
Arrow Quad frontal area at 70degree pitch:
In comparison aerodynamic arms and body would look similar too:
You will also have an issue with the power achievable on 4S from the Tmotor 2206 and the pitch speed of the HQ6045 prop. The motor is rated at 180W, but you need to drive it to 400W to achieve max prop pitch speed of 155kmh on 4S, which is a long way from enough thrust, especially through you complicated frame, to get the quad to go 150km/h. Try ecalc to see what you can expect from those motors/props.
Typically I don't get involved, but in this case there are some claims that just don't seem to be true. I think you can do much better than what you have designed so far, as it it is possible to design a quad that achieves what you claim. I just don't see how what you are claiming is also what you have designed.
A colleague of mine visited a Chinese electric motor factory the other day to inspect their work. The Chinese project engineer ran up to him an asked him what specification label they should put on the 1/2HP pump motor they ordered. The choices were 1/2HP, 3/4HP or 1HP.
Being "Made in Germany", also makes me want to defend our national pride in making things that work according to their design specification. Failing that make the specification what the design can actually achieve. If you want to be successful, honestly sell the performance you have achieved and tested and provide some evidence of the same.
Alternatively add a pusher prop and motor to make it go fast with less current draw and battery battery life. ;-)
Regards JB
In the kickstarter video we didn´t fly 150 km/h. We´ve just tested it with a GPS tracker. Like stated the copter needs an angle up to 85 degree and some time to accelerate to this speed.
@JB You mean the struts on the Arrow 200? We were able to remove them and get stability with other modifications. The Arrow 270 has some struts inside the frame, they have no big influence on the aerodynamics.Overall the frame has a very aerodynamic shape compared to other quads - like an arrow ;).
@Josua
I said greater than 60degrees. It also depends on how heavy your setup is. My point was that a extra pusher motor will easily achieve those speeds as it can run a higher pitch prop that doesn't need to produce lift to hold up the quad. Also the frontal area of a quad from the side is typically significantly less than from the top at 80-90degree pitch where you're trying to achieve Vmax. To be honest the extra struts on your design might make it more crash proof, but because they are so wide it also dramatically increases the drag and induces further loss in propulsive force created by the props, that is converted into turbulence instead, requiring you to have an even more powerful system to create the stated velocity. On top of that I'd say the battery will probably last 2-3min, if it doesn't spit chips beforehand. Customers getting 10-30 flights from a battery won't be happy, especially if the thing will be lucky to do 120kmh as is. :-( I'm looking forward to a video of it being otherwise.
Trying to achieve high velocities with a quad at high pitch angles is the hard way to go about having a fast quad IMHO, just try adding another motor in the right direction and see what happens. ;-)
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@ Quadmovr
Big fan of your videos and they have been inspiration of some of my own builds. Great video and skilz! ;-)
Ah yes well that is not your desing flying around though. I am aware that an X format tubes with these motors and 6S can achieve that, but thats not what I see in the kickstarter.
But whatever, good luck with your project! Anything that gets people into the sport I am a supporter :)
(I, like many people on here, just dont appreciate false marketing too much. You dont see the best racers in the world out there today claiming such speeds, so to see a new company run by people I never heard of in the racing space come out and make such claims, well you can see how that could be misinterpreted)
to get 150 you have to be in the range of 80 to 90 degree. unless your quad is very heavy.
these are radar measured 144kmh.
https://www.youtube.com/watch?v=va2hQhweeTE
Hi. You need much more than 45 degress to achieve 150 km/h. We are working on a following trailer with a lot of racing shots, so stay tuned ;).
Josua
What quad pitch angles are you using to achieve 150kmh? If you are using less than 45degrees you'll find it hard to produce enough forward thrust to achieve max velocity without climbing, regardless of how powerful your setup is.
Likewise, your rate of climb will slow down the quad forward momentum because energy is being spent on lift instead of forwards thrust.
I can convert nearly any 250size quad/hex by adding a 200W pusher prop motor to fly over 100kmh, simply because the thrust of the pusher motor is in line with the direction of intended travel.
Unless you have >60degree pitch it's unlikely your quad will achieve 150kmh in level flight, without increasing altitude whilst doing so.
Regards JB
Yea I seriouslydoubt you get such speeds. What is the total AUW of the 200 with the batt? You guys have a youtube channel where you have actual FPV vids? and not just marketing material?
Racing is really a fascinating sport. Its like an extreme sport where you can get an adrenaline kick, but you wont hurt yourself (using the technology responsible). Also it is one of the first affordable extreme sports.
You can setup the Arrow in 15 minutes. You should always start on a big meadow. For FPV its good to have a couple of objects for orientation. We will give information on this in our online tutorial.
From my perspective we have a very save project. Lots of drone companys start with 0 or low experience. We already worked on some challenging projects in the multirotor industry. I worked on the volocopter project for example (components and test plattforms).
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