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Old Sep 30, 2013, 05:12 PM
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Constructing a cardboard plane.


Hello. After seeing some planes made from cardboard, I decided to construct my own. I am making a large plane from cardboard, popsickle sticks, and glue. I am aware I need brushless motors, ESCs, receiver, and battery. However, I don't know what kind of each type. I'm looking for help as I'm a newbie in RC.

The plane: The plane has a wing span around 3 feet. The wings have ailerons. It has a rudder and will have elevators. 4 motors will be used. 2 on each wing. I will use a total of 5 servos and 4 brushless motors. How will I plug all this in into one receiver? Will 4 1400kv motors lift this 2-3 pound aircraft?

Edit: I haven't added elevators and the planes weighs 2 pounds without parts.
Last edited by Cardboarder; Oct 01, 2013 at 10:55 AM.
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Old Sep 30, 2013, 05:22 PM
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these forums are a bit more targeted toward building:
https://www.rcgroups.com/foamies-scratchbuilt-428/
and
https://www.rcgroups.com/the-builders-workshop-131/
Old Sep 30, 2013, 08:34 PM
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Building the plane is no problem. It's that I need more help with choosing electronics for the plane rather than building. Isn't this the forum for electronics? I'm new here.
Old Sep 30, 2013, 08:59 PM
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https://www.rcgroups.com/power-systems-13/
Old Sep 30, 2013, 09:14 PM
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Quote:
Originally Posted by Cardboarder View Post
Building the plane is no problem. It's that I need more help with choosing electronics for the plane rather than building. Isn't this the forum for electronics? I'm new here.
Then I would suggest getting a power train system that will produce 1kG of thrust
OR MORE, EASILY. 3-4 cells motor. So you can slap popsicle sticks on there until your heart is content. The motor's KV and prop combination is kind of like gearing. which is determine by what type of plane you want to build...
Im not a mind reader to know what you have in mind as an air frame type.

Id also recommend a prop in a slot type model....it'll save you time and money on props
as you learn to fly. They come in all type of designs.

never the less...a 1kg thrust motor will give you enough without worring
too much about power to wieght ratio.

I personally think it's cheaper to just get DTF...it saves me gas money.
I still have more than 10 sheets out of 20 that's been over 6 months.lmao
Last edited by smcx66; Sep 30, 2013 at 11:10 PM.
Old Sep 30, 2013, 10:07 PM
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Still circling in sink...
In the Beginner Training forum, there's a sticky on Choosing a Power System. I'd suggest going through that first - it will get you up to speed better than anything else.
Old Sep 30, 2013, 10:50 PM
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Thanks everyone!
Old Sep 30, 2013, 11:18 PM
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Quote:
Originally Posted by Cardboarder View Post
Building the plane is no problem. It's that I need more help with choosing electronics for the plane rather than building. Isn't this the forum for electronics? I'm new here.
ok, you obviously weren't clear in your first post and edited your post after i had responded. you can ask questions here (and anywhere for that matter) but perhaps being clearer in the beginning would have helped. regardless, folks on the forums i suggested would also be able to answer your questions - more so perhaps since as builders they have to consider every aspect - from the airframe to the electronics.
Old Sep 30, 2013, 11:22 PM
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Sorry will do.
Old Oct 01, 2013, 12:08 AM
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Suggested electronics for your plane:

Transmitter: $140
http://www.amazon.com/DX6i-DSMX-6-Ch...=spectrum+dx6i

ESC: 25amp (25C) $7.15
http://www.hobbyking.com/hobbyking/s...idProduct=6460

Outrunner motor: 200watt $9.48
http://www.hobbyking.com/hobbyking/s...dProduct=12920

Servos (2 @ $2.68 each)
http://www.hobbyking.com/hobbyking/s...rSearch=hxt900

DX6i receiver: $5.89
http://www.hobbyking.com/hobbyking/s..._Receiver.html

Battery: 3S (3cell 11 volt) $5.75
http://www.hobbyking.com/hobbyking/s...strSearch=lipo 3s 25c 1000

And 3 EC3 female connectors.

It sure beats the cost of those expensive Supercub planes that sell for $199
Plus your have all these parts which you can use on future planes.
Last edited by billisfree; Oct 01, 2013 at 12:16 AM.
Old Oct 01, 2013, 03:28 AM
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Although whether any of the suggested power setups will be of any use to you will depend on what you mean by "a large plane". Details are important, I think 36" wingspan is a pretty large plane...some of my friends think it's not large until you get over about 80". Weight is the most important factor and because you're using heavy materials yours is likely to be heavier than most.

I suggest you build the plane then tell us how big it is and what it weighs. Then we have a chance of suggesting a power system for it.

Steve
Old Oct 01, 2013, 08:02 AM
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Adding 4 motors/ESCs/servos/pack will add a fair amount of weight. 2lbs AUW would be fine, but that thing will be heavy at this rate. Certainly far from ideal for a first plane.
Old Oct 01, 2013, 08:22 AM
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I know it's a challenge, but it can be done.
Old Oct 01, 2013, 09:19 AM
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I'll post dimensions later.
Old Oct 01, 2013, 09:37 AM
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What are the female connectors for? I thought ESCs had all the wires.


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