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      Start Your Own Drone Club   12/30/2017

      Now you can start your very own Drone Club here and have your own mini forum for your club! Visit the Clubs section in the main menu!


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About DivenParker

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  • Location Dublin, CA, United States
  1. Tattu 2305 2450KV Brushless Motors are made for FPV Racing drone. Each quadcopter motor has been carefully balanced and tested in the factory. Tattu 2305 2450KV motors are mainly suitable for 180-250mm quadcopter frame, the compatible propeller sizes are 5040 / 5045 two-blade or three-blade propeller, they made for FPV Racing drone. This is an interesting motor as a first entry as it bucks a few of the current trends in the dominant motors on the market. Review: The stator size is right in the middle at 2305, a bit smaller than the popular large motors, and a bit larger than the popular small motors. The weight is right in the middle as well, coming in at just under 30g. This seems to be a motor of the middle ground on just about every front, with a fairly large air gap, square magnets, and multi-strand windings. The shaft is retained with a c-clip, but it does retain the stronger single-piece hollow shaft design. The machining quality and smoothness of this motor are top notch, with excellent finishing and no play. Results The results here are reflective of the middle ground this motor seems to occupy; very solid performance, especially for the smaller stator size and conservative kV. The kV tested a tad lower than advertised coming in around 2390kv. One of the most noticable things about these results is the relatively flat performance across the range of props, only showing about 100g difference between the lighter 5″ props and the heaviest 5″ props. This is indicative of the larger air gap and shorter stator, where the lower torque loaded props respond well to the kV and the heavier loaded props bog the motor down a bit. That being said the performance here is very comfortably in the middle range, easily clearling 1300g on the mid to heavy load props, and staying around the 1200g mark even on the light props. It is also interesting to note that this motor barely got out of the low 30A range even on the heaviest props. It seems clear this motor was targeted towards that middle space of the average user, a pilot looking for a mid-weight motor that is usable on a broad range of props and a broad range of flying styles without being over-powered or killing the battery. This seems to have it the nail on the head for a general use, broad application motor that just about any pilot can find a use for. Tattu 2305 2450kv Test Full Results Tested KV: 2390kv Weight: 29.7g Stator W: 23mm Stator H: 5mm Test Environment: XRotor 40A ESC Timing: Med-high Dither: 7 PWM: Damped Light Venom 60A Power Supply 2Farad Caps x2 in Series Custom Datalogger TI TivaC Launchpad Allegro ACS758-200B Voltage Divider EagleTree eRPM Sensor Custom Thrust Stand w/ HX711 4 ms logging rate Atmospheric Data (Typical) Barometric pressure: 29-30 in Ambient Temperature: 70-74 deg F Humidity: 50-60%
  2. Name Xiaomi Mi Drone 4K DJI Phantom 3 SE Photo Brand Xiaomi DJI Aircraft Diagonal Size 434mm 350mm Wight 1376g 1280g Max Speed 18 m/s 16 m/s Max Service Ceiling Above Sea Level: 500m 6000m Max Ascent Speed 6 m/s 5 m/s Max Descent Speed 1.5 m/s 3 m/s Camera Lens FOV 94° FOV 94° 20 mm (35 mm format equivalent) f/2.8 focus Sensor 1/2.3 inches CMOS 1/2.3” CMOS Effective pixels: 12M Image Size 4000 x 3000 4000 x 3000 Photo JPEG JPEG, DNG (RAW) Video Recording Modes 3840x2160p 30fps 2560x1440p 30fps 1920x1080p 100/60/30fps C4K: 4096 x 2160 24/25p4K: 3840 x 2160 24/25/30p 2.7K:2704 x 1520 24/25/30p FHD:1920 x 1080 24/25/30/48/50/60p HD: 1280 x 720 24/25/30/48/50/60p Supported SD Cards Micro SD (Class 10/U1 and above) 8 ~ 64 GB Micro SD, Max capacity: 64 GB, Class 10 or UHS-1 rating required Video MP4 MP4, MOV (MPEG-4 AVC/H.264) Remote Control Operating Frequency 2426.5 MHz~2461 MHz 2.400 – 2.483 GHz;5.725 – 5.825 GHz Max Transmission Distance 1 km FCC Compliant: 2.5 mi (4 km) Battery No mention 2600 mAh LiPo 2S Battery Battery Type LiPo Battery LiPo Battery Capacity 5100mAh 4480 mAh Voltage 15.2 V/4S 15.2 V/4S Flight Time 27 mins 23 mins Net Weight 450 g 365 g Other Feature Press button to take off or land Slide button to return home Circle around an object Plan a route Send to a point LIVE VIEW Quality: 720P @ 30fps Price & Shop Links $430(Click here to the shop) $807 (Click here to the shop) Compare with these two drones, which one do you like better? Xiaomi Drone or DJI Phantom? If you don't know how to choose, you need to know more guide of buying drones.