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« on: March 31, 2012, 11:52:27 AM »
amit_delhi
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Dear Aero-modellers,

I need help in procuring electronics for my first trainer.
Are these items good for a basic plane..Please help. (I am going through each section of this forum but still not confident if this choice is Good or not)

1)   ESC - FLY PRO Seires 25A 2-4S Brushless Speed Control
     
2)   Motor - 1000KV Outrunner Brushless Motors W/ Prop adapter Type A2212/13
      Dimensions:27.5x30 mm
      Shaft diameter: 3.17 mm
      Weight:47 g
      Thrust : 1200gms     

3)   Servo - CORONA 12.5g/ 2.5kg/ .14 sec Metal Gear Micro Servo
      Size:   22.5X11.5X24.6mm(0.88"x0.45"x0.96")
      Weight:   12.5g
      Operating voltage:   4.8V~6.0V
      Operating speed:   0.14sec/60
      Stall torque:   2.5kg.cm
      Gear Material:   Metal
      Connector wire length:   215mm
      Temperature:   -20℃~+60℃

4)   Charger - Turnigy 2S 3S Balance Charger. Direct 110/240v Input

5)    Battery - ZIPPY Compact 1800mAh 3S 25C Lipo Pack
       These LiPos are really very slim and compact at the same time very efficient.
       Weight: 134g (including wire, plug & case)
       Dimensions: 106x17x34mm
       Balance Plug: JST-XH
       Discharge Plug: XT60
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« Reply #1 on: March 31, 2012, 12:38:14 PM »
SunLikeStar
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Please post some details of the plane you are building, over all the setup looks good  Thumbs Up
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« Reply #2 on: March 31, 2012, 12:54:02 PM »
aviator
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Think 9G servos are more than enuf if u r planning on a fomie.
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« Reply #3 on: March 31, 2012, 12:57:21 PM »
amit_delhi
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@aviator thanks, I am planning to get sunpack (coro) and build a model from that...could not figure out where I can find biofoam or high density foam in Delhi.
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« Reply #4 on: March 31, 2012, 02:07:05 PM »
Swapnil
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Go with coro if you can't find foam.  It's kind of easier to work with and lasts long.
The MG servos are ok with the motor you have chosen (I have both). Just take care of AUW and wing loading of your plane.
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« Reply #5 on: March 31, 2012, 02:08:14 PM »
Swapnil
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BTW, which plane are you planning to build?
« Last Edit: March 31, 2012, 03:29:06 PM by Swapnil » Logged
 

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« Reply #6 on: March 31, 2012, 03:03:07 PM »
amit_delhi
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@swapnil thanks for your response. cant correlate MG servos with motor? metal gear servos are ok with this motor because of weight..? 
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« Reply #7 on: March 31, 2012, 03:23:43 PM »
Swapnil
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Right.  That motor can give sufficient thrust for carrying those servos.
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« Reply #8 on: March 31, 2012, 03:24:42 PM »
Swapnil
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omit
« Last Edit: March 31, 2012, 04:32:50 PM by SunLikeStar » Logged
 

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« Reply #9 on: March 31, 2012, 03:25:46 PM »
Swapnil
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omit
« Last Edit: March 31, 2012, 04:33:04 PM by SunLikeStar » Logged
 

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« Reply #10 on: March 31, 2012, 03:28:46 PM »
amit_delhi
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 Bow any suggestions for a easy trainer made out of coro Swapnil?
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« Reply #11 on: March 31, 2012, 03:41:18 PM »
Swapnil
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Have you visited Spadtothebone? (www.spadtothebone.com/)
I tried a couple of conventional designs first but that didn't work out so well. Then I built a pizzabox (PBF) which flew good but was too agile for me as a beginner.

The first plane I did more than 10 flights with and could handle well was the ESPA3D (a 3D plane, can you believe that?! I guess I had too much simulator practice).

So, I'm not the right person to advice you about trainers! Smiley
Use the search box, there's loads of beginner-plane build logs here.

Good Luck!
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« Reply #12 on: March 31, 2012, 03:50:32 PM »
amit_delhi
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Availability of square PVC pipe or stick is the hurdle, I am searching for its alternatives easily available.
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« Reply #13 on: March 31, 2012, 03:55:11 PM »
amit_delhi
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Okay if I use aluminium U shape channel for fuse for spad..do you think this motor can provide enough thrust for that...?
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« Reply #14 on: March 31, 2012, 03:58:04 PM »
Swapnil
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PVC has a tendency to wobble. I use wooden sticks (beading sticks, used for furniture edges). You can reduce weight by drilling holes along its length. Wooden sticks are used in the original ESPA3D too.

I think aluminium would be too much! Smiley
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« Reply #15 on: March 31, 2012, 04:05:10 PM »
Swapnil
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See the 1st pic (f.jpg) in post #8 here:
http://www.rcindia.org/electric-planes/espad3d-coro-(another-3hr-build!)/

You can see the wooden stick. It doesn't go all the way to the motor or tail and has holes along the length.
(Oh, and that plane doesn't look so ugly anymore! It was just my young cousins back then. Smiley )
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« Reply #16 on: March 31, 2012, 04:16:55 PM »
amit_delhi
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http://www.rcindia.org/electric-planes/espad3d-coro-%28another-3hr-build!%29/

got this thread..!  Clap

Soon I am going to make a build log thread...pls accept to be my Mentor in Chief.... Bow
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« Reply #17 on: March 31, 2012, 04:22:02 PM »
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In f.jpg of post number 8, there is the beauty flying high in the sky...cant see wooden stick there in that pic. these wooden sticks are called margins, and they are used as edges on 3/4Inch plywood. I have lying around 100 feet of these margins in 3/4inch and 1 inch size. that was surplus from the recent furniture work I got done recently. 
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« Reply #18 on: March 31, 2012, 04:32:00 PM »
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Err... sorry. That's a resized low-res pic. I was watching the original one on my PC when referring to it. You can still see the stick under the belly even though the holes can't be seen...

Thanks for the info on the margins Smiley . Our local carpenters call them something like 'beading' sticks. I've used a 1/2 in. one for the ESPA3D.
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« Reply #19 on: March 31, 2012, 04:37:07 PM »
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Making an RC plane from straw board, ( Coro sheet ), is far easier.. go for a wingspan of 38 inch at least, and 7 inch chord.. a polyherdral will help to stabilize even more.. with a tappered edge.. a 1000 RPM motor with at least 200 Watt power, or 1400 RPM with 220 Watt, with a 9X6 and 8X5 will works nicely, with any 9 gram servos.. can use wooden reapers to reinforce, by stripping on a circular saw, in to 4mm X 4mm strips, will be great.. a 1200 mAh, to 2200 mAh battery will help.. all above took about two hours to make one.. a pusher in to same configuration helps to protect motor from a direct hit.. have some nice flights..  Thumbs Up
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« Reply #20 on: March 31, 2012, 04:46:08 PM »
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Soon I am going to make a build log thread...pls accept to be my Mentor in Chief.... Bow

MIC? Smiley
Dude, I'm just a beginner like you! But I'll gladly help you with whatever I can. 
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« Reply #21 on: March 31, 2012, 04:53:56 PM »
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 Clap Clap Clap Hats Off
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« Reply #22 on: March 31, 2012, 04:58:11 PM »
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Call Mr. Divya Puri, he deals in the items you need. He is Noida based, he would be a great help to you. His number is 9811963278.
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« Reply #23 on: March 31, 2012, 05:28:58 PM »
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HI Amit !

We have made more than 65 trainer models using the same combo.The reason we use metal gear servo is it does not break during hard landing or a crash while a plastic gear servo breaks.And 3 gms extra on each servo hardly makes a difference as the motor is giving a nice thrust.
we make the high winger trainer models with ailerons or without ailerons(Polyhedral wing for stability) using 2mm and 3mm Plastic Coro sheet.I can send you the dimensions.
They fly beautifully and are very stable.
We use 3/4 inch Plastic Electric conduit or Pine wood as a spar and keep the airfoil flat at the bottom while folding the wing at the leading edge.
Very simple to make and will take maximum 4 hours of construction time.
I will post some photos of the trainer which we make.

All the electronics are readily available with me. All brand new and packed.
Can be shipped Immediately so that you can build your trainer asap.

Contact : 9881607277
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« Reply #24 on: March 31, 2012, 05:34:39 PM »
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Also i have the basic accessories available at very very minimal cost :

3.5 mm gold connectors for the motor and ESC
XT - 60 or Deans Connector for ESC and Battery
1.8mm Push Rod Linkage connectors
Small plastic horns
Self Tapping Screws to mount the X motor mount to the firewall
Heat Shrink sleeves
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« Reply #25 on: March 31, 2012, 05:38:36 PM »
Swapnil
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Wow! How much would the above setup (in 1st post) cost me including shipping? Please PM me the individual prices, I'm interested.
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« Reply #26 on: March 31, 2012, 06:01:10 PM »
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@roopeshkrishna sir, thanks for your valuable guidelines. Its a good omen for me that you dropped in with your guidance. I have gone through all your scratch building threads, your life size INS Viraat, and your in comparable ability to make useful equipments from trash like your CDR to brushless motor thread. Its an honour SIR to get guidance from you... Salute

@varungarg thanks, I will PM you for accessories as well.

@ahmad thanks I will get in touch with mr. puri.

BTW: I am making this trainer for my 3 years old son. He was asking for toy plane and I told him that we will make a real one that flys as well.
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« Reply #27 on: March 31, 2012, 06:32:45 PM »
Swapnil
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Ahh, lucky kid!
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« Reply #28 on: March 31, 2012, 06:36:26 PM »
amit_delhi
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Electronics and accessories are sorted...now comes radio. How come all the online shops have zero stock of Tx/Rx? Only RCBharat have stock of FlySky 9CH...

@swapnil Should I go for a FlySky 6 Channel or a FlySky 9 CH or wait for RChobbyAddict before they restock Turnigy 9CH...

I am going to connect Tx to FSM and practice on that while making the model.. I know its not a 2-3 hours job for me, its definitely going to take a week.
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« Reply #29 on: March 31, 2012, 06:42:44 PM »
amit_delhi
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Okay I read both FlySky and Turnigy are same, so the question comes 6 Ch or 9 Ch...
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« Reply #30 on: March 31, 2012, 06:50:21 PM »
Swapnil
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Totally up to you. If you are going to stay in this hobby for long then 9x is the one to go for.
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« Reply #31 on: April 02, 2012, 02:04:34 PM »
amit_delhi
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Swapnil, I have ordered Fly Sky 9x, hope to receive it by this weekend.
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« Reply #32 on: April 02, 2012, 07:10:29 PM »
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have a great success and nice flights..  Thumbs Up Hats Off
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« Reply #33 on: April 02, 2012, 09:21:02 PM »
amit_delhi
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Latest price updates for Coro sheets:

2mm (6 X 4) - 75 rs.
3mm (6 X 4) - 100 rs.
4mm (6 X 4) - 150 rs.

Today got 2 X 2mm, 2 X 3mm and 1 X 4mm coro sheets from Chuna Mandi, Paharganj, New Delhi

Now they have coro sheets in 4 stunning colors, Yellow, Blue, Red and Green too. I bought plain white sheets.
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« Reply #34 on: April 02, 2012, 09:29:36 PM »
Swapnil
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Woah! In my city 4mm coro costs Rs. 450!
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« Reply #35 on: April 02, 2012, 09:32:05 PM »
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I went to the wholesale guy in a very crowded market, was looking like "Sabzi Mandi", according to the rates I have seen in forums, found his rates very reasonable.
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« Reply #36 on: April 02, 2012, 09:34:34 PM »
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or..........did I got coro or something else..... Giggle, no no it is coro yaar I saw pictures of coro sheets somewhere.
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« Reply #37 on: April 02, 2012, 10:43:03 PM »
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@swapnil dont worry If you are in need of coro sheets, I can courier them to you from Delhi. I can get them cut in half, like in 3 X 4 feet size.
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« Reply #38 on: April 02, 2012, 11:00:18 PM »
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Thanks man! I'll let you know if I need some.
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« Reply #39 on: April 09, 2012, 02:12:35 AM »
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Coroplast is nice and very easy to use and u got a great deal on them too.. I use it to make kfm airfoil wings and stabilzers. But for the fuselage, it may not be that ideal as the flutes give it a higher tendency to fold.. And your electronics are good enough for a 30-45in plane (just make sure you dont exceed the 1200gm limit as its your max thrust).

Best of luck and I think your son could be the youngest RC Pilot in India!!
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