Microdrones claims 60 min of flight time for a Quadcopter ?
This must be the best sell pitch ever or just their fantasy.
But still, if somebody can come up with a formula ( battery size , prop size,
motor ) to get at less 50% of that it would be great .
This are the specs for the MD4-1000 from the MicroDrones
Empty weight 2650g
Max payload weight 1200g
Take-off weight ~5500g
Size 102cm rotoraxis-rotoraxis
Flight duration up to 60 min
Operating distance up to 2000m
Battery cell LiPo 9000, 18000 or 27000 mAh
Wind tolerance 12 m/s
Replies to This Discussion
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Permalink Reply by Ozan Aktaş on -
Hi Jani,
Do you know when these big disk motors will be on sale in Jdrones store?
Best,
ozan
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DeveloperPermalink Reply by R_Lefebvre on -
Jani, I'm curious if those motors might be useful in a helicopter application? How many Volts and watts are they capable of? It might allow direct drive on a 450 size heli, or less gear reduction on a larger heli.
It would be interesting to maybe build a 450 heli with this on the main shaft with no gear reduction, and then use a small motor on the tail, direct.
Probably doesn't make any sense, but it's just a neat idea.
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Permalink Reply by Todd Hill on -
Robert, Some simple calculations would show this improbable with those motors. But good idea non the less. At best you would have to drastically change your gear ratio. For a 450 CCPM Heli you would need more torque than these motors are capable of producing for a direct drive setup turning rotors that large. 200-250 size heli is more probable.
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Permalink Reply by Maximus on -
I remember Graupner or Multiplex has helicopter with large motor like these...I was thinking about putting them on multicopter !!! :)
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Permalink Reply by Brian Bills on
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@ Maximus
I want to order 4x of your w4822-390KV and 1x of your w4822-520KV but when I a add to cart all that is showing up is a 590KV?
Please advise as I need to evaluate these motors asap.
Thanks,
Brian
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Permalink Reply by Andke on -
what's up with the price ?
would also expect better prop mounts, not prone to bending, even if the price were half.
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Permalink Reply by Jason Wise on
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@Andke, get these motors from Himodel, $39.95 vs $99
http://www.himodel.com/sort.php?sub1=E0
There the same motors
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Permalink Reply by Maximus on
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I ask my factory about this large price difference....
They are definitively not the same quality :D
But maybe it is enough for fun !
Maximus
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Permalink Reply by Jason Wise on
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Its easy for you to knock Himodel, simply because you are in competition and are selling them for $99, so basically anything you say is rubbish with claims of 'not the same quality'
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