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Found 9 results

  1. Here's a interesting good one for the team. I have a bid for a contract that part of the requirement of the contract is that the company provide a on call drone for emergency services that is CFR Part 107 compliant (55 lbs max) but that has a continuous flight time of up to 2 hours without landing or recharging batteries. Need some help from the crew out there. They also want the drone to have IR and Night Vision capability. It is a government bid and they say they will obtain all the required waivers. Any one know of what Drone systems would fly for 2 hours at a time and is Part 107 complaint?
  2. Battery and Prop

    Hey guys, I built an f450 quadcopter model. I want to purchase another battery but I don't know how to go about choosing one. Any ideas, thoughts, or recommendations when it comes to batteries. Also, in my research for the right propellers for my drone I've come across two different designs. One is more rounded and smooth shaped. The other is more sharp and triangular in shape (it is this shape that I see on toy rc copters). I also see this prop shape on most youtube videos I see concerning drones. My question is does the shape of the propeller make a difference? Is one more efficient than the other? Cheers!
  3. Tilt-Shift/Diorama Mini Time Lapse in Strong Winds: Mavic Stability+Battery Test Hi, here’s an unplanned short video of a tilt-shift/miniature/diorama with the Mavic Pro. I was initially planning to see how well and how long it would hover under strong winds and okayish temps. Speeds in the video vary between 100x and 4000x plus a reversed clip. Editing was a lot more work than I expected, so I hope you enjoy watching it! Please check out my tutorial videos and other stuff as well! Facebook Page, Aerial Film and Photo - https://www.facebook.com/dronefilmphoto
  4. Hello all,I've just finished my Quad F450 build and as I tried to power it on for the first time my ESC's keep beeping and the FCU doesn't power on. It this happening cause of a faulty/wrong connection I did or do I have an issue with something from my components? My build consists of :1. Frame F4502. Flight Controller Unit KK2.1.53. Motors x44. ESC's x45. UBEC6. Battery7. Tx/RxThanks in advance for any help and info you can provide.
  5. Eachine Racer 250 Lipo Battery

    Hey everyone, quick question; What battery can I use for my Eachine 250 Racer? It came with a 1300mAh 4S battery and I would like longer flight times. I understand that I should probably buy more batteries and another charger but I want to make sure I am buying quality parts.Any suggestions? Or should I just stick with having more stock batteries?
  6. I was recently given an S900 to fix up for a client. It came with a battery and a controller but I have hit a wall when figuring out how to charge the drone's 16000 mah Masione battery. My problem is with the balancing connector, it's a lot like a typical 6 cell balance connector but it's smaller and the plastic guiding pieces on the male end that fit in the grooves of the female end are a bit closer to center. I just spent two full days looking for something to make this work on the internet and visited multiple local hobby shops ... Please help!
  7. You just acquired the Alpha Unmanned Systems Power Board (PB) to make your piston engine UAV more reliable thanks to the back up battery while reducing or eliminating the battery care task. But now, which brushless generator should you choose for your UAV? Wich are the right RPMs to achieve the voltage I need? If you made yourself this questions continue reading this article. First of all, we have good news for you, all electric engines can act as motors or as generators, this means that if you apply electric energy to the engine it will give you work, but if you apply work it will give you electricity! This means that any drone electric engine can be used as a generator thats why they can be found at very affordable prices. But let's focus on what's important. In brushless engines there is a constant that will give us the clue to calculate all the necessary parameters to integrate the Power Board (PB) in the UAV. This constant is the Kv, motor velocity constant or the back Electro Magnetic Force (EMF) constant, this value tells us the number of RPMs that will be achieved when applying a certain voltage and is a data that all the manufacturers will provide. Then, having this value and knowing that we need a minimum of 19 input volts to charge the backup battery and that the maximum allowable input voltaje is 30 volts, a nice voltage value to work with would be lets say 24 volts, now assuming that the typical rpms of the propeller of a Fixed Wing SUAS are 9000 rpms we have all the necessary data to define our brushless engine. RPMs = Kv X Voltaje 9000 = Kv X 24 --> Necessary Kv constant is: 375 But what happens if, for example, we can only find a 475 Kv engine, then we would need to increase the rpms of the brushless generator to achieve the same voltage, in that case we can use the transmission between the propeller shaft and the generator to increase the rpms as follows: Necessary rpms are: Kv X Voltaje --> 475 x 24 = 11400 Gears/Pulleys relationship must be: 11400/9000 = 1.26 this means that the generator gear or pulley must have 1.26 times the number of tooths of the one installed on the propeller shaft, f.e. 15 one and 12 the other (12 X 1.26 = 15.12). Now you have all necessary information to integrate your generator and Power Board on your UAV!
  8. We are conducting research into current practices for powering smaller UAVs/drones. Of particular interest are how choices are made among types of batteries. We would like to understand the decision process, as well as any important trends for these devices. We would also like to explore any unmet needs for better power sources. As part of our approach, we reach out to experts who can provide a unique perspective and are knowledgeable in this area. We are not seeking any confidential or proprietary information, just your high-level expertise, insights, and opinions. We do not want to know about specific projects, but rather aggregate experience with these topics. Please let us know if you would be willing to participate in our research via a brief telephone interview. If you are not the right contact for these types of questions, please feel free to refer us to a colleague. We are happy to offer an appropriate honorarium for your valuable time and expertise. Best regards, Jeff Hovis Product Genesis jhovis@alum.mit.edu +1 617-710-8141
  9. Faster Charging

    I bought the Q500+ and charging takes a good 2 hours. I think I read 4K comes with faster charger. How fast does 4k batteries charge? Also hearing there are 3rd party options? 3rd party options that charge much faster and can put batteries in storage mode, 50% charged? Any info on battery charging options and where to buy them would be appreciated.