Hi Gents.

 

I have DiyDrones Hexacopter with 850kv motors.

http://store.diydrones.com/ArduCopter_Hexa_3DR_Ready_to_Fly_from_Udrones_p/ud-achrtf01.htm

 

Currently running with 3s 5000mAh & 10x4.5 plastic prop.

Hovering at 50% Joystick.

Max flight time is 8 min with 8m/s horizontal speed.

Payload without batt = 400g

50m above sea level.

What should i do to achieve 20min + flight time in 8 m/s horizontal speed.

 

2x 4cell 6000mah?

Carbon prop?

Carbon frame?

Better motors?

 

 

Regards

Ludvig

 

 

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • I recently had a 3DR Quad with the 880kv motors and APC props fly 24 minutes without any special preparations.  All I did was mount 2 4S5000mAH 20C Turnigy batteries to it, wired in parallel obviously.  It was pretty easy, and if flew fairly well.

    The Hex should be capable of similar.  Though with a 400g payload, that will certainly make it that much more difficult.  I think you should be able to get to 15 minutes without too much trouble.

  • Has anyone got any experience with these battery`s?

    http://www.maxamps.com/Lipo-11000-148-Pack.htm

     

    My 3s 5000mAh hyperion battery`s weight = 428g

    This 4s 11000mAh MaxAmps is = 825g

     

    This should increase my flight time pretty much.

     

     

     

     

  • RCTimer has a setup that claims 23 minute flight times? Has anyone tried one of these? http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=...

     

     

    Looks like they use very low 350 Kv motors with very large props. Large props at a very low RPM should be much more effecient.

     

    .

     

     

     

    http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=722&productname=
    • I have 1000kv motors with 10x4.5 blades and get 17min time on 3s 5000maH battery.
  • Multrotors are extremely inefficient and 20 minutes may not be possible. For long flight times you need an airplane or a helicopter with a gasoline engine.

     

     

  • Thx guys.

    Will this configurations effect the stabillity of the aircraft.  E.g lower kv motors with bigger props at 4s battery?

    What is the drawback & benefit?

    Would it be a better option to use OctoCopter?

    I must say im impressed about how great this HexaCopter flies. 

    Ludvig

  • T3
    The simple solution is fly a plane.
  • You will have to do it all.

    Lower kv motors (300-400), hardcore ones with japanese bearings etc - axii, tiger etc.

     

    Larger (14-15" props), preferably graupner e-props or similar (there are plenty to choose from but i stick with the graupners)

     

    Higher cell count - 4s will probably do, but I'd be aiming for at least 12000mah (3x4000mah packs), maybe one more, in which case you might need bigger props.

     

    The rest of the weight will matter, but will be insignificant compared to the batteries as long as you keep it sensible.

     

    Oh and leave the camera at home ;)

     

     

  • MR60
    Hello,
    You will not reach 20 minutes because of your weight. The more batteries and rhe bigger their capacity, the more weight.But the extra battery weight increases faster then the increased capacity (flight time).
    Unfortunately you must thus cut a maximum of weight off. But could you cut down enough weight to reach 20 min ? Try and let us know about your experiments!
    Hugues
This reply was deleted.

Activity

DIY Robocars via Twitter
RT @chr1sa: Just a week to go before our next @DIYRobocars race at @circuitlaunch, complete with famous Brazilian BBQ. It's free, fun for k…
7 hours ago
DIY Robocars via Twitter
How to use the new @donkey_car graphical UI to edit driving data for better training https://www.youtube.com/watch?v=J5-zHNeNebQ
Monday
DIY Robocars via Twitter
RT @SmallpixelCar: Wrote a program to find the light positions at @circuitlaunch. Here is the hypothesis of the light locations updating ba…
Nov 26
DIY Robocars via Twitter
RT @SmallpixelCar: Broke my @HokuyoUsa Lidar today. Luckily the non-cone localization, based on @a1k0n LightSLAM idea, works. It will help…
Nov 25
DIY Robocars via Twitter
@gclue_akira CC @NVIDIAEmbedded
Nov 23
DIY Robocars via Twitter
RT @luxonis: OAK-D PoE Autonomous Vehicle (Courtesy of zonyl in our Discord: https://discord.gg/EPsZHkg9Nx) https://t.co/PNDewvJdrb
Nov 23
DIY Robocars via Twitter
RT @f1tenth: It is getting dark and rainy on the F1TENTH racetrack in the @LGSVLSimulator. Testing out the new flood lights for the racetra…
Nov 23
DIY Robocars via Twitter
RT @JoeSpeeds: Live Now! Alex of @IndyAChallenge winning @TU_Muenchen team talking about their racing strategy and open source @OpenRobotic…
Nov 20
DIY Robocars via Twitter
RT @DAVGtech: Live NOW! Alexander Wischnewski of Indy Autonomous Challenge winning TUM team talking racing @diyrobocars @Heavy02011 @Ottawa…
Nov 20
DIY Robocars via Twitter
Incredible training performance with Donkeycar https://www.youtube.com/watch?v=9yy7ASttw04
Nov 9
DIY Robocars via Twitter
RT @JoeSpeeds: Sat Nov 6 Virtual DonkeyCar (and other cars, too) Race. So bring any car? @diyrobocars @IndyAChallenge https://t.co/nZQTff5…
Oct 31
DIY Robocars via Twitter
RT @JoeSpeeds: @chr1sa awesomely scary to see in person as our $1M robot almost clipped the walls as it spun at 140mph. But it was also awe…
Oct 29
DIY Robocars via Twitter
RT @chr1sa: Hey, @a1k0n's amazing "localize by the ceiling lights" @diyrobocars made @hackaday! It's consistently been the fastest in our…
Oct 25
DIY Robocars via Twitter
RT @IMS: It’s only fitting that @BostonDynamics Spot is waving the green flag for today’s @IndyAChallenge! Watch LIVE 👉 https://t.co/NtKnO…
Oct 23
DIY Robocars via Twitter
RT @IndyAChallenge: Congratulations to @TU_Muenchen the winners of the historic @IndyAChallenge and $1M. The first autonomous racecar comp…
Oct 23
DIY Robocars via Twitter
RT @JoeSpeeds: 🏎@TU_Muenchen #ROS 2 @EclipseCyclone #DDS #Zenoh 137mph. Saturday 10am EDT @IndyAChallenge @Twitch http://indyautonomouschallenge.com/stream
Oct 23
More…