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Old Apr 29, 2012, 04:26 PM
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Joined Apr 2012
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I'm trying to build my first plane

I have been flying a trainer for quite a while now and have grown out of it. I saw mikey's video on the pylon racer ( http://mikeysrc.com/Pylon_Racer.html ) and would love to make one. and even if I crash it is seems pretty cheap to fix. I have done some research on how to make rc planes but the out side doesn't seem too hard and actually I am going to love it but I still dont know that much about the internals . I looked up some of the hardwear that looks like it would work for the pylon racer but im not sure if everything will work... I'm Guessing something has to be wrong is it? could I get some help buying my first...? EVERYTHING

14.8V 4 cell 1600 -2200mAh 20C li-po battery
http://www.hobbyking.com/hobbycity/s...Lipo_Pack.html

2600 - 2700KV 78 gram brushless motor.
http://www.hobbyking.com/hobbycity/s...idProduct=6263

60 amp ESC.
http://www.hobbyking.com/hobbycity/s...ESC_Opto_.html

9 gram servos.
http://www.hobbyking.com/hobbycity/s...cro_Servo.html

4.5 X 4.5 high speed prop.
http://www.hobbyking.com/hobbycity/s...propeller.html

also I dont have a transmitter or receiver will this work out well?
http://www.hobbyking.com/hobbyking/s...x_Mode_2_.html

thank you so much for your help
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Old Apr 29, 2012, 04:59 PM
Balsa builder and balsa basher
RC Trainer plane's Avatar
Joined Apr 2012
683 Posts
Welcome !!!

Hey Readability welcome to RC groups and it's nice to see you want to build your own plane . I'm also building my own plane (Scratch built balsa RC Trainer 1.6m wingspan) and it's also my very first build. Unlike you i've never flown an Rc plane before ( not including little park flyers ) but want to build my own . I've looked at the Rc plane you want to build and i think it's a neat little flyer. However as your second aircraft you might want to step up to something where you can use your skills that you've learnt from your RC trainer. Here's one i though you might like. http://rc-trader.co.uk/blog/electrifly-super-sportster. I prefer balsa over foam to build with ( you might prefer otherwise). my RC plane is made of balsa.

Also have you decided on a wingspan? once you've done that here's a link to what the proportions of you're rc plane should be if you want a nice smooth flight. If you want a more responsive and more agile plane shorten some of the dimensions.http://www.indoorflyingmodel.com/DesignParameters.html

I was also wondering if you want to include an airfoil. you probably know about this but a symmetrical airfoil is grat for a pylon racer.

If your building with foam which i presume you are, then a KF airfoil is great. It allows for lift and it's easy to build. Here's a link for a well explained youtube video on KF airfoils
Why we use KF Airfoils! (2 min 57 sec)
You may also like some of the designs this guy has.

Anyway i've gone on enough here's the link on my build if you want to check it out. http://www.rcgroups.com/forums/showthread.php?t=1638287

Hope it inspires you to go the balsa way
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Old Apr 29, 2012, 06:11 PM
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Joined Apr 2012
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thank you! that electrifly super sportster does look like a great plane I might look into it! if anything when crash it enough to total it, I'll try my hand at building some thing else using the parts from it. I still would like to know if everything that I might buy in the first post will work together well?

I have never owned at balsa plane it seems like too much work and it is really easy to fix a foam plane. I know if I get a more aerobatic plane I am going to crash a lot at first and would like something that I could fix myself and with this modal it only cost $1 for the foam to build it

I don't know the exact wingspan I'm just basing it off mikey's pylon racer
there is (what some might call) a airfoil on the racer. he glues the spar on top of the wing and then tapes over the wing and that makes the "airfoil". I have read a little about the KF airfoil and might try something like that in the future but right now I'm sticking to using the design that I talked about above (it seems simpler, for now)

Best wished for your project! if I did that much work on some thing like that I would never fly it!!!
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Old Apr 29, 2012, 06:43 PM
Balsa builder and balsa basher
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Joined Apr 2012
683 Posts
Sorry but I can't access your links to your planned electrics. However I think you'd be better of looking at this forum and setting up a thread in this link. http://www.rcgroups.com/foamies-scratchbuilt-428/ sorry I couldn't help
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Old Apr 29, 2012, 09:42 PM
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Taiwan, 北市
Joined Dec 2010
1,215 Posts
I'd suggest building a RTF kit first, then scratch build your first R/C airplane after knowing how to deal all of the stuffs needed. Here's the link I think would be helpful with you at this moment. http://www.rcgroups.com/forums/showthread.php?t=1586139 I did suggest what he might need for the RTF kit I recommemded. Be reminded that the RTF kit, GWS Slow Stick or E-Starter is quite cheap, they are easy to build, easy to fly and easy to repair.

Chen
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Old Apr 30, 2012, 05:38 AM
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United States, GA, Buford
Joined Nov 2007
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Quote:
Originally Posted by Readability View Post
...and even if I crash it is seems pretty cheap to fix...
The cost to fix a crash is not anything compared to the cost of time spent fixing it. Bare that in mind when you pick your build materials.
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Old Apr 30, 2012, 09:37 AM
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United States, VA, Virginia Beach
Joined Feb 2012
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I've had balsa kits that I've actually repaired for a cost of less than $1.

In particular I tip stalled a high wing trainer on landing and did a nice cartwheel in for my landing, there was much applause and if anyone had large numbers on signs I'm sure they would have gone up.

End result the whole tail section sheered off and was only held on by the pushrods. I took it home peeled back the covering and cut off the jagged bits of balsa. I went outside as the ice cream mans truck could be heard. I bought 2 popsicles and went home to enjoy them. I then took the sticks and then glued them into the fuse binding the two pieces, the patch held the entire time I owned the plane (about 4 more years).

True story.
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Old Apr 30, 2012, 12:47 PM
Balsa builder and balsa basher
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Joined Apr 2012
683 Posts
To be honest i think balsa is better to build with and is a joy to work with. But i think you seem set on foam so you should go with that.
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