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RC Models => Electric Planes => Topic started by: arjun2592 on May 12, 2011, 12:07:14 PM

Title: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 12, 2011, 12:07:14 PM
HI ALL

this is my very first RC plane build

i am trying to copy the PRECISION AEROBATICS ELECTRIC SHOCK
i chose this plane because it is smaller in size and can be flown in very small area and it is 3d

Materials -

1) i am using wood strips ( used in co-boards for decoration ) for the entire plane build.
    because this is lighter and also cheaper.
2) glue- using super glue and fevicoal

FOR POWER SYSTEM

i have no idea about what electronic i should use but already have

EMAX cf 2822 1200kv motor
4 pic  of  HXT 900 9g servos
Turnigy 1000mAh 3S 20C Lipo Pack


i will post pics by this evening

thanks!
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: rajathv8 on May 12, 2011, 12:17:19 PM
All the best :)
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: xxkrishxx on May 12, 2011, 12:33:23 PM
If u r a beginner,it won't be suitable for u..Go for a trainer plane build..
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: PankajC on May 12, 2011, 12:45:16 PM
While we try to be ambitious in our projects, we should be practical in our approach. My recommendation for a newbie would be as follows
1) Go for a pusher rather than a tractor
2) Go for a high winger rather than a low one
3) Go for a slow flyer with a a low wing loading
4) Keep the weight low
5) Try with 3 channels first - throttle, elevator and rudder.

pankaj
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: anwar on May 12, 2011, 12:59:17 PM
While acknowledging the above two posts as the right thing to do, if you have already starting building the 3D model you mentioned, be sure to limit the throws either physically, or preferably using the DR/EXPO combination on the transmitter. There is really no reason why you can't fly a 3D plane, if you tame it down *AND* you are VERY (I mean VERY VERY) comfortable flying on a sim.  The caveat would be to have a more experienced flier do the initial trimming, if that option is available to you.

Keep the weight close to 500gms, for that motor.
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 13, 2011, 09:01:25 PM
hallow

couldn't post picks yesterday hope to do it by today or surely tomorrow

yes i understand being a beginner i should go for high wing trainer
BUT
as i already started build and it is almost complete and also trying heard to keep it within 500g
so i don't wanna drop the plan.

here are some picks of the real precision aerobatics electric shock  

i will post the copy one (the one i am building) by tomorrow surely.

the battery i chose is 3s 11.1v 

which ESC should be used with  cf 2822 motor  (  25Amp    OR     18Amp )  ???

Lipo  battery is 3s



thanks!
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: rajathv8 on May 13, 2011, 09:09:45 PM
You will need 25A ESC for this.
This may help whle using this motor:
http://www.rcindia.org/electric-planes/my-new-coro-trainer-avispad/msg62249/#new

Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 13, 2011, 11:15:26 PM
 
the size of the wingspan is 30 inch

total length is 31 inch

weight =  about 400g including 4 * 9g servos + motor

what should be the prop size for the motor  ??



Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 14, 2011, 10:36:14 PM
sorry for the delay

here are the pics


Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: rcpilotacro on May 14, 2011, 10:40:42 PM
Leading edge of the wing is too blunt, might behave unpredictably at high alpha
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 14, 2011, 10:45:58 PM
here are some more
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 14, 2011, 10:58:12 PM

i tried as far i can copy the real one


right side wing is yet to be covered and

As it was my first wood construction rc plane so i made few mistakes hope that will not efect the performance !


wingspan is 30 inc
which prop should be used ??

the real PA ELECTRIC SHOCK uses 10*3.7 prop


here are few more pics

if i am making any mistake
pls  guide me through


thanks!



Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: VC on May 15, 2011, 12:12:30 AM
Banboy I don't know about your flying experience or the aerodynamics of the model,
however, that wood strip that you are using is an amazing product! I have used the same stuff and it is amazing! It almost has a balsa like feel to it.

Your model is looking good.

All the best!
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: arjun2592 on May 17, 2011, 03:52:11 PM
hi all

i just measured the plane weight  and  i now have a BIG QUESTION (WILL IT FLY)

JUST the plane weight is 375g ( without any electronic )

The total weigh i.e wood plane + 4*9g servo + motor + Esc = 470g

after adding battery and receiver i guess it will be about 570 to 600g

now my question is that the motor i chose, will it be able to pick this weight

what should be the prop size for this plane  ???

i tried  heard to keep it within 500g but couldn't

pls suggest



thanks!

Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: rcpilotacro on May 17, 2011, 05:36:53 PM
Gr8 build, for a 3D atleast 1.7 times the weight should be your pull, for a decent tailslide recovery
Title: Re: BUILD THREAD - VERY FIRST RC PLANE
Post by: dards on August 31, 2011, 08:03:13 AM
PA is undoubtedly the one of the best electric plane manufacturer. extremey light weight,  rugged and fly really well.

if you are interested in a good build thread of their flagship model  extra MX here is the link

http://www.rcpak.com/index.php/forum/12-arf-a-rtf/10997-precision-aerobatics-extra-mx-build (http://www.rcpak.com/index.php/forum/12-arf-a-rtf/10997-precision-aerobatics-extra-mx-build)
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