Information

ArduCopter User Group

Discussion group for ArduCopter users

Members: 2214
Latest Activity: 20 minutes ago

Discussion Forum

SPLASH DOWN

Started by Ben Snyder. Last reply by Gustav Kuhn 20 minutes ago. 3 Replies

Well, one of the shittiest and most destructive things that could happen to a UAV happened to me today. Accidental low-battery LAND failsafe set my 3DR Y6 down... into a pool. I retrieved it…Continue

Calling All Custom Multi-Copter Pilots!

Started by Forrest Frantz. Last reply by Bill Piedra 4 hours ago. 4 Replies

I plan to do what is called a "pull" to made changes to the custom code regarding custom shaped copters.  This change in code would only impacts irregular shaped quads, hexas, and octas when the…Continue

Taranis

Started by Tom. Last reply by Greg Nuspel 9 hours ago. 7 Replies

Having huge issues trying to set up my Taranis with the Pixhawk. I can get the first 4 channels (AETR) working fine but I can for the life of me get channel 5 and the flight mode switches…Continue

PixHawk Out of Box Problems

Started by Bruce Jones. Last reply by Thomas J Coyle III 13 hours ago. 33 Replies

Yesterday I received the PixHawk I ordered on January 2nd.  Four week delivery time is pretty good for a new FC from 3DR!But I've had all kinds of problems trying to use it. First I tried using the…Continue

Comment Wall

Comment

You need to be a member of ArduCopter User Group to add comments!

Comment by Rui Manuel Cravo Marques on February 24, 2012 at 6:20am

Chris Gough, yes me too. Correct me if I'm wrong, but have you tryied to push a car ? It has about 2000kgs, are you making that force ? I seriouslly doubt that 1000gr of thrust in spec sheets would be lifting capability but more "suited for a 1000gr airplane model", so it accelerates untill it has a speed where air can sustain the weight. I see spec of motors with 1200gr thrust with a 10" prop... put 4 of this on a quad and see if you can lift 4800gr :)


Developer
Comment by Marco Robustini on February 24, 2012 at 5:01am

Ecalc work fine, when I designed my X8 got it right:

Comment by Chris Gough on February 24, 2012 at 4:45am

Pay attention, sometimes motors have in their specs the thrust, but it's not lifting thrust but horizontal thrust (for planes)

??? I thought thrust was thrust.

motocalc works well for me.

Comment by Rui Manuel Cravo Marques on February 24, 2012 at 4:38am

Gjango, I don't know if you're familiar with this site : http://www.ecalc.ch/ 

The thrust depends on several factors : motor power, motor kv, propeller used. A 100w motor with 800kv and a 13" propeller will give you less thrust than a 300w motor with 800kv and a 13" prop, since the last one will be able to maitain higher rpms with such a "eavy" prop, but the motor will also be heavier. Pay attention, sometimes motors have in their specs the thrust, but it's not lifting thrust but horizontal thrust (for planes)

Comment by Gjango on February 24, 2012 at 4:28am

hi to all

How can I calculate the thrust produced per motor in kg?

Comment by Ellison Chan on February 18, 2012 at 10:36pm

Well, 850kv @ 20amp would probably generate over 1kg thrust per motor.  So your flying weight with the gopro is over 4 kg?  That does seem like a heavy drone.  If you're really over 4kg, you should probably be looking at a hexa or octo.  Since if you try to find motors for a quad that can lift greater than 4kg, you're talking about expensive motors and escs.

Comment by Adli Shahnaz on February 18, 2012 at 10:06pm

Elison, 850kv with 20amp ESC. I just transferred from the normal jdrones ardu frame to the X1 frame. Should I change the motors and the ESC?

Comment by Ellison Chan on February 18, 2012 at 10:02pm

Adli, what kv motors come with that frame?  12x45 sounds like they're big for a 20amp rated motor..  Adding another battery in parallel will likely make the lifting ability worse, since there will be the extra weight of the battery added to what you say is an already heavy drone.

Comment by Adli Shahnaz on February 18, 2012 at 9:46pm

Hi guys,

Can I add an extra battery to the arducopter?What do I need to do in order to do that? Help please. Right now, I am using the JDrones X1 frame with 20amp of motor and 12 x 45 props. It seems  a little bit heavy to lift with gopro attached to it. Thanks.

Comment by Sayan Andriyanov on February 4, 2012 at 12:11pm

Adli, is your camera fixed or it dangles?

 
 
 

Groups

Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Drone Delivery Challenge, is here

© 2014   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service