RC Beginner in Budget

Started by ajith, April 13, 2011, 09:21:32 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

ajith

I am very interested in RC planes ....
i am planning to buy a 2.4Gh 6 ch transmitter & reciever  
and
want to make my own plane .....   probably from foam ... or balsa
Please suggest me where to get all my parts
and their approx prices ...

my Max budget is RS 7500 - 8000  ???              (ELECTRIC PLANE )

I gathered this list which i think is probably sufficient  for my needs  :headscratch:


propeller : RS. 80
out runner motor : please tell me what to use  for a plane of 1.5 kg
Esc : Depends on motor
servos  (9 gm) : RS. 200
foam /Balsa wood  : 5 mm sheets  or wood 3mm thickness  : RS. 250
Battery & charger : Depends on motor
wheels : RS. 45 pair  (2)
carbon rods  : RS.360
Transmitter planning to buy :
from    www.rchobbyaddict.com

Image attached below   link not working ....



please  tell me what motor to be used and also about Battery ; charger ;ESC  :help:
........  if you know the prices  please notify    AND  if there is any change in prices of these near you feel free to share with me .... {:)} {:)}

awaiting for  your replies  (:|~ so  i can start soon
regards  -- From  a  RC  lover

Divyam

You could search in the forum.. This question has been asked MANY times on the forum.. :)

And, Welcome to RCIndia! :)
Thunder Tiger Phoenix BX
Associated RC18T2/B2 Kit
Walkera 5G4Q3
TechOne Angel
Hiller 450 v2
Futaba 7c 2.4Ghz
Slash 4x4 (sold)

anwar

Hi Ajith -

A very warm welcome to the forum :) I am sure you will get all the help you need to start in RC here !

My suggestion is to spend at least a few hours READing and SEARCHing through the forum, then ask specific questions if you are still confused.  Currently you are showing like 20 minutes of online time here... just make yourselves at home and see the existing discussions. 

Remember, the more you READ, the more you SAVE MONEY :)
Hangar : Please see my introduction.
RC India forum and me : About this forum.

rcpilotacro

Ajith welcome to the forum, since you are a beginner, i would suggest to get yourself a GWS Slow stick , stick in a 2212 motor and the Tx Rx of your choice and you are good to go, like anwar bhai says the more you read , the more you save money
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

PankajC

Dear Ajith,
When starting out, most folks newbies (myself included) think about going for a big model. However, as I have learnt the hard way, its about learning to fly a model and not about size. So as an entry level plane, do not look for a foamie with flying weight (or All up weight = AUW) ore than 700-800 gms for starting on electric. This will lower your initial expenses on motor/esc/battery
Also look for a pusher instead of tractor as it will be more resilient to crashes

Pankaj
Spektrum DX6i | EP Pusher Trainer | EP CUB |

ajith

#5
Thank's every one

i have been following this group from a week   and have read (being offline)  recent posts (past 4 months)
My plane Planning ...      
weighs about  : 1Kg

so please suggest me with Motor ; propeller ; ESC  ; Battery ;  :help:   :headscratch:


i am going to use SERVOS ( image below)  4-5 of them

I an going to order 6 ch Transmitter stated above :How is it. good for its price ??  is it enough for an intermediate flier ?? (i want to learn fast)

i want to build  a plane for now & as soon it flies good i want to build a F-22  or a su-35  :P

I have been reading and searching for rc stuff from past 3-4 months .......

Now i have saved enough ( want it to be with my own cash) and  want  my first plane within 7000 -7500.  Including 3500 for transmitter  :thumbsup:

seniors  please help .....
Help me finding  the right Stuff for  Motor ; propeller ; ESC  ; Battery ; .  I want to start right ahead


mean while  i am trying to build it with a 22000 rpm brushed motor  and have built  my OWN servos  with toy motors {controlled its rotation to 95 deg  with making a half circle gear cut out from hard  plastic. and use light weight  Insulation foam.}
This one will be done after my first RC plane (what ever may happen).

Donations are like water in a desert    for me  now (:|~

I'm in my B-tech First year  Electrical




PankajC

for  just getting your plane up in the air you would need about 120-140 watts of power (if on electric), going by the 60watt/pound rule. It is not advisable to fly at full throttle, so the wattage of you motor needs to be more towards the 200W mark.

Most of the motors at this wattage are in the 3-4 cell lipo range. Once you have the motor, the props and esc are suggested by the vendor/supplier. Do remember that the ESC is 15-20% higher than the max amp rating for the motor.
The battery you get have markings like 1600mAH 20C (just an example), you should keep the AH x C rating of the battery at 125% of the amp required. For example you need a 200W motor at 3cell Lipo - you would require 200/11.1 or 18amp on a continuous basis, keeping a buffer, you should opt for at least a 20-30 amp ESC. The battery of 3S1P 1600 mAH 20C would work out the discharge at 20x1.6 = 32 amps which is more than the 25% buffer required for the setup.

Spektrum DX6i | EP Pusher Trainer | EP CUB |

viksi

There are some cheaper Tx options available on Hobbyking. Also you could think about making models which are lighter. goflykite.com comes to mind. These kites are simpler to make with carbon fibre rods and depron. You can use standard phone batteries to fire the motor. good luck
Don't drink and fly, fly like you are drunk :)

rohitgupta322

Buying Tx directly from Hobbyking is a headache. Since many LHS's are selling Tx's, there is no point buying from HK. Depending upon your budget you should choose your TX.   
Be Inquisitive

ajith

Thank you all  {:)}

my plane is going to look like this {image below }
I want to make the wings with  foam (depron) and a carbon rod for support .not like in pic with balsa ribs .
will there be any problem then ??


I have decided to  Build my plane  first.  and then order for all  electric  gear.
But i want to find all my required items  before start off ....    :salute: :salute:

Will this motor { image below }

be able to lift 800-900 g  plane ? :help:
will a 1600 mAH  20 c; 11.1 v   Li-po  enough for this ?
Will there be any problem if we use a 25A  ESC  for this ??  (I mean it it sufficient. without being fried !)  :headscratch:


Where can we find  Good quality  Bio-foam   or  Depron  please  provide with  Size's  and  rates


SunLikeStar

ajith, if this is your first plane you should start with a already proved plan.
I strongly recommend
http://www.rcgroups.com/forums/showthread.php?t=921481
You will learn a lot from it and will have tons of fun flying it.

carenaman

i want to repair my Chinese heli wings connector with stabilizer  will any one help me.

rajathv8

ajith you can get depron from foamybuilder on the forum. His sheets are of good quality , reasonable rates and he is a good guy to deal with. Just PM him.

ajith

Guys 
can you see the motor  in the  Picture above  and

tell me if it  can be  used  to  lift a 850-900 gm plane ... ??  :headscratch:

and what ESC should be used fo that ??    :salute:

will  a   11.1v   1600mAH  20C   Li-po   Handel  it  at all times ??   :help:

Husein

1. Yes
2. A 20amp ESC should do just fine
3. Yes, what exactly do you mean by 'at all times'?
Its the eye of the tiger, its the thrill of the fight
Risin up to the challenge of our rival
And the last known survivor stalks his prey in the night
As he watches us all with the eyes of the tiger

ajith

At all times 
i mean that  even if there is an excess drain from the Li-po ....... 

and what is the difference between brushed ---  brush less  ESC   :headscratch:

i am planning to use a 25 A  ESC for Extra safety ........    :salute:

will there be any problem ??  like  less flight  time .... excess heat from (Motor   or  ESC  or  Li-Po  or  Reciver unit ) ??    :headscratch:

rohitgupta322

#16
A lipo with a specification for eg 20c can supply a maximum of 20 times the mah rating. If the motor draws more amps then the maximum that the lipo can supply then ofcourse it would overdrain it. For a 800-900g plane u are basically looking at a motor in the power range of about 140-150 watts. Now divide the wattage by the battery voltage which is 11.1V then you will find the max amp that it will draw if it runs at full power is about 13amps, now the battery shud be able to supply more than that which a 20C 1600mah can easily do. All these have been discussed so beautifully in the forum, please spend some time and read through them.

To answer your second question, in crude terms, a brushless esc is used when u use a brushless motor whereas a brushed one is used incase of a brushed motor.   
Be Inquisitive

ajith

Finally  getting Foam  thank you  "Foamybuilder "   {:)}  :thanks:

Now i have decided to List parts for my plane

My plane  looks  something  like this   <{ image below }>
  and weighs about 850-900 gms

and i have a few questions  and  need your  suggestions

Will this  motor  make my plane  fly fast ... and a good flight ?    >> (Image Below)

what ESC will be  Good  for this ??

Which Li-po  should  be  used  ??   { Specifications:  mAH; c ;Amp ;V. }

Where can i get a good charger for the Li-Po  at  a  LOW  PRICE  ??     :help:

Is this  transmitter  a good choice  ??  >> (Image Below)