Learn How To Fly W/ The Rc-help Trainer. Build & Fly Guide

maddy23285

New Member
OK then, I will wait for these to arrive. By profession I am a software engineer. I could not spare much time on weekdays for my projects ,so I works on weekends only, so meanwhile I will complete rest of the building :)

I know it is out of topic, but as you know I am a beginner and I really want to discuss few concepts about rc components to clearify my doubts.

I made my first rc plane (pirior to this V1) after watching experimental airlines Noob Tube video on you tube. I made it small about 23" wing size and put turnigy 1450KV motor, but it was unable to generate the required thrust. After adding all components its weight was about 560gm.


What I know:

1. Battery Amperage > ESC Amperage > Motor Max Amperage.
2. To increase Thrust go for lower KV motors. ( Thrust depends on KV or Wattage ?)


It would be very helpful, if you could help me to understand how to choose the motor.

My Doubts:

What are the basic things one should remember before joining main and tail wings? What if main wing is bit higher and tail wing is placed lower than that? Does it really matters?

According to video (Experimental Airlines) I bend my depron board for main wing and fixed everything as shown in video, but after completing my wing building I noticed that curve thickness of right main wing is more than left wing. What exactly happens when we try to fly plane with these kind of wings?
 

Tony

Staff member
Lower KV motors will have more torque. They are better for heavier planes. Higher KV is better for prop jet type planes. More rpm but less torque.

Joining the wings, just make sure they sit flat on the fuse. If they do that, they will be even with each other.

I'm not sure what you mean about the curve thickness. Can you post a picture?
 

Tony

Staff member
The most that could happen is you have a little more drag on the right wing. Simple solution would be to add a little rudder into it to compensate.
 

maddy23285

New Member
Hi Toni,

It was really difficult to sand and give the perfect airfoil shape when all KFMs are glued together with hot glue before sanding.

Please check the images in attachment and let me know if it needs more sanding

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Sammy786

New Member
HI Tony hope you have had an awesome new years.
Look you suggest 1000kv with 35A esc on 220lipo and 10x6 prop
Well i just received the prop i bought from hobby kings a 10x6 prop and it looks very big and also the review on the prop that size is for a bigger motor as i asked and some guy off the review told me that 10x6 prop not for a 1000kv size motor.
Maybe he doesn't know what he's talking about so i though i ask you thanks mate.
 

maddy23285

New Member
Hi Tony,

My parcel is arrived last week :) Now I am ready to put all electronics into V1.

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The prop in image is 10x4.5 SF prop.

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Tony

Staff member
Right on, looks like this thing is going to go into the air here soon. Be careful with that SF prop. They are supposed to be used on a gearbox setup and not a direct drive. I highly suggest the APC props for this plane, but that is not saying that the prop will not work. Stick it on there and try it out, but land and check the motor temp after a couple minutes of flying just to be safe.

Can't wait to see this in the air.
 

Tony

Staff member
I have used the SF props, and they work on a motor that is a little larger than it needs to be for the plane, but get a smaller motor for the same plane with the SF prop, and it starts to heat up. Just keep an eye on it, and GET VIDEO!!! :chuckles:
 

Sammy786

New Member
Re: Article: Learn How To Fly w/ The Rc-Help Trainer. Build & Fly Guide

this is the motor that you suggested Turnigy 2836 Brushless Outrunner 1000kv (AUS Warehouse) and the ESC H-KING 35A Fixed Wing Brushless Speed Controller (AUS Warehouse) You also suggested I get a 10x6 prop with 220lipo battery.
I was told 10x6 is too big for the motor.
Thanks tony.

- - - Updated - - -

I have received all the electronics in including the 10x6 prop just waiting for you to give me the go.
I also have made the wing with a bit too much dihedral would that be ok? lol
 

Tony

Staff member
I think you are ready to install all of the electronics and get this thing in the air. Mount your firewall/motor mount, get the motor on there, get the ESC and servos in there and set up your control surfaces and get that sucker in the air! lol. I want to see this puppy flying.

As for too much dihedral, as long as we are not talking over 15º, you should be fine.
 

maddy23285

New Member
Exactly tony, I am waiting too. I have placed pop sticks on both inside and outside as shown in video. I am going mount all servos, control horns and motor tomorrow.. :)
 

campaholic

New Member
Just thought I would post a couple pics of my V3 RC-Help Trainer. Used the Youtube videos as a reference for the build. Flies great. thanks for the plans and videos!!!

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Tony

Staff member
That plane looks GREAT! Love the orientation marks on the wings! Do you happen to have a video of it in the air? Would love to see it.
 

campaholic

New Member
Thanks Tony! The orientation marks worked great. Easy to distinguish the top from the bottom. Used colored scotch tape. No video yet as I was out by my self for the maiden.

If any one is interested in what gear I used:

BP -2212/13 Outrunner
Castle Creations 18A ESC
2200 3S Lipo
10x4.7 APC Slow Fly prop. Drew 22+ amps / 200+ watts at full throttle so was very conservative on throttle for test flight.
Now has 9x6E APC prop drawing 15A / 175W at max throttle. Not flown yet but looks like a great combination.
2 Hitec HS-55 servos for rudder and elevator.
2 GWS Pico servos for the ailerons with servo extensions.
Hitec 555 reciever.

I know it's old school as it's 72mhz but my gear has been sitting for a while and wanted a plane to bash around and not worry about before I upgraded to a 2.4ghz radio. I figure a lot better to practice with this plane and get time on the sticks then to take out my nice balsa planes and crash them out of the gate.

Thanks Tony for the great plane, plans and all the help and build info you put out there!
 
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