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« on: May 23, 2012, 11:13:31 AM »
rakshitc
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What I know that for a twin engine one must set up each motor rotating in the opposite direction to cancel out the torque generated.. Smiley...but im not sure if i can use normal props for both motors Undecided...... i tried to find counter and normal set of props (the prop i require is 6x4 one) out of no luck i failed to get one Bang Head......
 :help:Can i use two normal propellers for this set up? if so how? if not where can i get a set of these props  Help Me
Please help

Thanks in advance Hats Off
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« Reply #1 on: May 23, 2012, 12:08:02 PM »
VC
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L'enfant Terrible du RCIndia
Have you checked www.rcelectro.com for props - normal and counter sets?
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« Reply #2 on: May 23, 2012, 12:17:52 PM »
rakshitc
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Can u tell me which size are these combo sets
http://www.rcelectro.com/index.php?page=shop.product_details&flypage=flypage.pbv.v5.tpl&product_id=244&category_id=7&option=com_virtuemart&Itemid=7 and
http://www.rcelectro.com/index.php?page=shop.product_details&flypage=flypage.pbv.v5.tpl&product_id=181&category_id=7&option=com_virtuemart&Itemid=7

i need either 6x4 or 6x3 my plane design cant fit anything above 6"
they have 6x3 counter rotating props
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« Reply #3 on: May 23, 2012, 12:37:45 PM »
VC
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L'enfant Terrible du RCIndia
http://www.rcelectro.com/index.php/rcelectro.comindex.php?page=shop.product_details&flypage=flypage.pbv.v5.tpl&product_id=117&category_id=7&option=com_virtuemart&Itemid=7

6X3Counter, PM and ask him if he has a standard available.
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« Reply #4 on: May 23, 2012, 12:42:24 PM »
amit_delhi
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@VC ...In twin-motor setup how do we calculate the total thrust? Is it like thrust of one motor X 2
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« Reply #5 on: May 23, 2012, 05:21:27 PM »
PankajC
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@rakshitc
You can use 'normal' props as long as one of the motor is reversed to spin in opposite direction.

Pankaj
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« Reply #6 on: May 23, 2012, 05:33:39 PM »
rakshitc
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thank u very much pankaj sir
saved a lot of time for me
will get a normal prop cW and CCW set

Regards
    Rakshit
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« Reply #7 on: May 24, 2012, 10:26:57 AM »
Soaring Eagles
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Roger
Hi,
what i think is that for a pusher model u dont need to assemble props rotating in the opposite direction as torque being a vector quantity will act perpendicular to the plane of the prop.  it will actually follow the right hand thumb rule..so u should have both the props rotating in the same direction...if they rotate in the opposite direction the torque generated will be opposite to each other and act as a couple.
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« Reply #8 on: May 24, 2012, 01:06:14 PM »
roopeshkrishna
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HYDRO PLANER.....
and if you have a gyro, can take output to balance the motor variations.. fly nicely..  Thumbs Up
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