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Hobbyking Global Hawk UAV

Posted by CrashingDutchman on May 28, 2010 at 4:05am
Hobbyking launched a new product on their website that will interest many here: GlobalHawk UAV w/70mm EDF Kit with 2 meter wingspan.

GL-Hawk.jpg


This GlobalHawk has a wingspan of 2 meters, also we have included a 70mm ducted fan with 5 blades for 4,000kv motors. We have supplied this in kit form because it is fun and easy to build and there are a variety of fans available for you to choose, you will need a 28 size inrunner motor, Lipoly battery, escs and servos to make it fly. It will take you around 2hrs to complete this model. This is a very unique aircraft and a great glider too!

Specifications:
Wing Span : 2000mm / 78.7in
Length : 768mm / 30.20in
Wing area: 25.4dm2
Height: 273mm / 10.75in
Net weight: 341.9g / 0.75lb
Flying Weight: 1100~1200g
Servo: 4x9g (Not included)
Motor: 28-XX Brushless outrunner 3500~4000kv (Not included)
ESC: 40A (Not included)
Duct fan: 70mm
Shaft size: 3~3.17mm

Required:
Your own TX & RX
4x9g
28-XX Brushless Motor 3500~4000kv
40A
Battery
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Comments

  • CrashingDutchman May 31, 2010 at 7:24am
    Ok Mike, no problem. For that amount of money I can almost pick it up from you!
  • CrashingDutchman May 29, 2010 at 2:16pm
    Mike, want to part with one?
  • CrashingDutchman May 28, 2010 at 11:35pm
    It was not my video, I found a link to it on rcgroups.com.

    I am not sure if this is a plane for loops and rolls. How many of you do loops and rolls with their uav's?
  • Riccardo Kuebler May 28, 2010 at 10:43pm
    Hi,

    nice flight, but are you considering this a test flight ?

    In my test flights I do at least a looping, a roll, inverted flight, a stall and a spin. Yes, with all my planes. I did this with EZ* too and with Chubby Lady too (only problem with this last one is that when rolling it stops in inverted and stay there, no chance to have a complete roll :D ). Eventually a speed dive, if structure permits.
    Anyway I meant flutter at speed ;) (this, dives and then speed, occurs often testing/flying with autopilots.

    Best regards,

    Ric
  • 3D Robotics
    Chris Anderson May 28, 2010 at 8:26pm
    @Komugi, no that's an earlier model that was smaller. It was a complete POS as the guy discovered. I had one and gave it away. Nothing fit..
  • Komugi May 28, 2010 at 3:11pm
    I found this: http://www.rcuniverse.com/forum/m_7220223/mpage_1/key_/tm.htm
    Is that the same model?
  • Jack Crossfire May 28, 2010 at 11:30am
    While the west keeps pumping more money into the dead horse of home equity stimulation, China keeps slamming the hits.
  • CrashingDutchman May 28, 2010 at 11:22am
    Here is a movie: https://www.youtube.com/watch?v=uKilIgmUbjs

    @Riccardo: I don't notice much flutter in that movie. Climbrate might be not very good indeed with payload. Here are some pictures from someone who converted this plane (at least, it looks like it is is a similar or the same plane) to a pusher.
  • Riccardo Kuebler May 28, 2010 at 9:57am
    Mhmm, devil's advocate again.
    Wondering about:
    - short wing chord. Flutter at speed ?
    - EDF. Climbing rate with some payload ?
    - very short lever arm and a lot of weight far from CG. Very unstable/nervous/dancer on pitch axis ? Hard to gently control stall conditions ?

    It's longtime I have this Predator on my wish list, but it never convinced me. To take video I still prefer gliders. They have high efficiency, are very stable etc.

    Best regards,

    Ric
  • Developer
    Jani Hirvinen May 28, 2010 at 9:39am
    I wonder how long it can fly with 3S4000mAh. Anyways it's really cool looking bird. And looks like it has a lot space inside to mount all nice hardware :)

    Ken, I really do understand you ;)
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