RC India

hey guys i have started my new project that is multiplex easystar i have finished making all the parts other than the wings as i am thinking of hot wireing it so i am half way through the sanding of the fuse and rudder and elevator have been sanded i am posting the pics of the fuse 25% sanding done i know it doesnot look nice now but wait until you see the real beauty and also it cost me around 500 rupees excluding electronics which i already have it will be the basic rudder elevator plane

here are the pics after 25 % sanding (please bear with me as it will take me time to sand the tail part of the fuse to get it a tubular shape

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091742.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091744.jpg)

this pic shows the start of the tail being tubularated or whatever.

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091746.jpg)

hoping to finish and maiden it by sunday
and guys can i just make the wing by sanding it down to get the airfoil needed as i feel it as simpler

hey guys just made elevator and rudder
and i am surprised that when i just threw the plane to glide without the wing the model kept on going straight and and glided down without the wings i believe this is going to turn out good but lets keep our hands crossed

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091747.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091748.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/070720091749.jpg)

the tail might seem to be very brittle but its not also there is a lot of reinforcement not very heavy but a little o help it cope up with the disaster

nice job subbu  {:)}  I have an easy star and i wonder why i paid so much for it  ;D  ;D

I should have ordered one from you  8-) hehehe.. but good work dude, if you want any help with the dimensions or some pics let me knw. I will post in some close up's of my easy star if you want..

Cant wait to see it fly..Good job dude..

Cheers

Atul g.

thanks a lot atul bhaiya can you please post some pics of it as i have the dimensions specially the tail part of the fuselage rest all i have it with me



subbu

well i am thinking of selling it if it is a success and add some addition and name it something else so that it is different from the easystar or the multiplex people shall kill me





subbu

Good Work Subu,
A small Suggestion, Wrap wonder tape around the full plane for toughness, or sandwich depron with 2 mm coro
Sandeep

It will be interesting to see how you mount the motor  :)

well anwar bhaiya i have test mounted the motor will post pics in half an hour

hey anwar bhaiya heres how i mounted the motor it has my new improved mount with complicated rubberband patterns

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091750.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091751.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091753.jpg)

Cool ! 

Just wondering if it is pointing down a little too much.  I think the thrust adjustments usually are like 2 or 3 degrees off centre (both down and to the right of the direction in which the air is being pushed).

thanks for replying this mount is so versatile that i can change the angle anyway and i am doing it now wait for a moment i will post the pics

anwar bhaiya i am posting two pics please tell me which one would be the better one

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091754.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091756.jpg)

and the creamy thing which you see is a wonder stuff which i found from somewhere which acts as a filler that is it hides the imperfections of the sanding if any ;D

also please tell me if i should hot wire or sand the wing(yet to be made) to get the airfoil. i have tons of sanding experience and none with hotwire cutter

atul bhaiya just saw that you are online can you post some pics of the wing if possible

Oops, I think I said "down" instead of "up"  :o 

It is pointing up a little too much, compared to level of  the tail (or direction of flight/fuselage).  In any case, just follow the offset requirements for thrust cancellation, and readjust as necessary.  Final adjustments might be needed in the field so carry whatever material you use for adjustments with you (like toothpicks, or extra pieces of foam etc).

Hi Subu,

Sorry man, i was a little busy.. I will post the pictures rite away.. Keep up the good work  {:)}

Ok i just modified the same post, here they are dude... hope these pics help ?

Next week, if possible i will also post some pics of the easy star a professional thermocol modellor is buidling here in pune..

All the best subu..

hey guys completed the plane today just about now only part left is sand the other half of the wing and about 10 % fuse. then i am ready to put in electronics. tomorrow i shall hinge and fix the plane up completely and start with electronics assembly have a look at the following pics still a lot sanding need to be done at the nose cone to make it get the perfect shape. so enjoy the pics and always suggestions are welcome and also i have changed a few things in the plane which i shall reveal after the first flight.


how i made the polyhydral just use your hairdryer

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091757.jpg)

now on to the plane

(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091759.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091760.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091761.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091762.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/080720091763.jpg)





please note that that nothing has been attached firmly every thing is just kept in its position to show the progress ;D ;D ;D

May i suggest

1. The vertical fin should have been an extension of one of the laminate sections that the fuse is made of.

2. Fuse looks a bit weak (or may be too rounded/sanded) at the middle. Maybe embed a CF tube or balsa spar along the length of the fuse.

3. It may be sufficient to simply round the corners every where vs. sanding the fuse to shape.

4. Wrap the whole fuse with 3M clear tape. Apply the tape length-wise on the fuse and wrap it around near the nose.

5. The motor mount area should ideally be laminated with balsa for strength.

6. May be a good idea to make the wing in sections - shape smaller sections and then butt-join them. So that you can make the air foil more precisely than making one long one.

7. Is the wing a little thin and of lesser chord than whats prescribed? I don't know the dimensions of the easy star

hi tg here are the answers to your questions there are five carbon rods running all the way from the nose to the tail and four from wing tip to wingtip. the fuselage is not yet stuck together with  epoxy so when every thing is done it might look stronger. for the motor mount area thanks for the tip i shall do it immediately. the first part is something i did not know i.e the vertical fin part and also the manual has them as different section anyway i will rebuild it. for the tape i was about to use scotch brand clear tape.

for the airfoil i have used the sand the whole thing method as i could get a clean and nice airfoil your idea will be tried out in the later versions as wings have been sanded also for any imperfections i use my mysterious cream to get it perfect.

actually the wings thickness is correct as i referred to atul bhaiya's easy star for the dimensions

oh and one more thing is that i have heard that easy star can taxi is it using the rudder and the airflow due to pusher config please suggest.


thanks a lot tg as i have really learnt a lot from your valuable suggestions and keep suggesting who know i might give it away for free (may be after it has flown and is approved as begginer level). i am thinking of testing it with pramod bhaiya and then give it to the hands of a complete begginer and see how it turns out.

hey guys everything is held by toothpicks for the pic as i was short of epoxy or hot glue
subbu

The problem with sanding a long stretch is that the same pressure and orientation is not guaranteed along the length. So you will end up with a smooth but "wavy" surface. You may make a sanding "bar" which can be used to shape longer surfaces. You may use thin ply in place of balsa also, if you can get thin ply.

hey guys everything has been set up all sanded and only thing left is joining the wings can anyone tell me how is it done in real easystar

Hey  Subu ,
Good to see you using  non flying time due to rains to build , that is  great .
Most people seem to think that only flying is aero modeling but I believe that  building your own models is what aero modeling is all about .
I am strong build and fly type .
Sai

Yep, stop buying those Techone foamies and starting cutting the foam  :P

Hi subbu,

i hv put in some pics as u wanted it..Try to put in some velcro so that the wings dont move at all.

I had a weird accident on my easy star.

Easy star was abt 100ft in the air and the wings just came out  ;D. The prop disappeared, wings were flying to one side and the fuselage just rocketted down to the ground * bang * but no harm done i was in the air within 10 minutes.. ;D

Hope these pics help you decide on hw to attach the wings on the fuselage..

Cheers

Atul G.

Quote from: anwar on July 09, 2009, 11:00:57 PM
Yep, stop buying those Techone foamies and starting cutting the foam  :P

Sounds like someone on our neighboring forum   :P ;D ;D

Quote from: rcforall on July 10, 2009, 09:00:24 AM
Sounds like someone on our neighboring forum   :P ;D ;D

Ouch ! That hurt  :'(

Sounds like someone who just wants to ACT nice  ;D

That is the best part here friendly open exchange of info and swipes at each other just for fun   {:)}

hey atul bhaiya thanks for the pics they help a ton sorry could not respond to sms as i was in school :)

hey guys test fitted everything and everything works very good the only thing is that if the plane is underpowered i am using 2212/10 bl and at full throttle it doesnot even move forward in the ground though i have not taped the bottom another suggestion could be to use the bigger mammoth 222w motor from sai uncle will post details a little later

The Easy star uses a  small prop becuase of the mount position , you cannot use a prop more that 6 " hence to generate enough thrust you need a high KV Motor like the 2212/06  with a 30 amp ESC 2212/10 cant work.

Sai

just curious, won't it be ok to mount the motor on the nose of this plane?

hey sai uncle actually in the previous pics if you see i have used 2212/06 but i thought that it would be tooooo overpowered for the plane hence i used the2212/10 anyways will change it back to 2212/06

hey guys testing it tomorrow with the powerful 2212/06 and just a little info the planes wingspan is about ten cm more and the plane has a lot of cf embedded into it thats the reason the planes weight is around 600-700gms

hey subu, post a pic or a video man.. lets c the finished easy star (indian version)..  ;D

i think i agree with tg here, try to put the motor on the nose as an experiment..

cheers

atul g.

of course i will  put in the video in a couple of hours as my mother has asked me to clean my room :'( :'(    anyway dont move anywhere i will post it in an hour

and for the experiment i will put that in the next sunday

i shall be putting in the video with the 2212/10 as yet to solder connectors to 2212/06

heres the pic guys and video coming up in a minute


(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/110720091768.jpg)
(http://i635.photobucket.com/albums/uu71/Pikle6/easystar/110720091769.jpg)

also it will have a paint with flames and decaling from nick my friend

atul bhaiya and anwar bhaiya before you sign out just check the video it will be up in a moment

http://www.youtube.com/watch?v=fPfpzTxLtjk

wait a sec please its being processed

Good work subu..  {:)}

In btwn wats the thickness of those wings ?? You think they will be able to take some heavy winds ???

this is going to be a great flyer.. spray paint it..

Bravooooo....  {:)}

Make sure you have a dedicated cameraman around when you test fly this !

sure guys i will do whatever you guys say i am thinking of flying this with pramod bhaiya

Great effort..  {:)} . Would love to see it fly.

-Ismail

thanks guys i am overwhelmed by the response :) :) :) :) :)

hey guys my fear of this setup being underpowered vanished as soon as i attached the landing gear on the plane and this plane shall take off with the same setup i.e 2212/10 (though it was not meant to be a pusher motor  ;D ;D)

if you need the pics let me know i will put them too

hey anwar bhaiya do you know how can plans be converted to tiled pdf one's please tell mee as i dont know how

I haven't tried that myself.  But let us start by understanding what you are trying to do.  It is pretty clear you need some kind of PDF writer, the issue is which ones support resizing.

What kind of document format is your image in now ? 

If it is already a PDF, this one looks like a simple way of doing it: http://www.lucubration.com/open-source-projects/pdf-tile-printer.html

hey guys how are you people today i am very sad :( :( :( :( rain has not stopped from yesterday night the plane will have to wait another week anyway i tried to taxi it down the parking lot and at half thottlr the plane was in air and i had to bring it down so it did not hit any car is anyone interested in buying tiled plans for 500 rs if yes tell me i will make

if you want the model also please tell me i will be happy to make one for you and the cost would be 1000 rupees as i am collecting money for something big and also the plans come in a cd with instuctions

test flight is today guys after school in a ground near the school

hey guys switch on the tv and tune into any news channel. BREAKING NEWS MUMBAI'S FLOODED AGAIN AND NAVI MUMBAI EXPERIENCES STORM SHOWERS. am praying to god to stop this as soon as possible as i need to fly my easystar

and one more thing our school declared holiday ;D ;D ;D ;D due to rain ;D ;D

Just now checked this thead, good work Subbu...

But I feel more jealous of you really! Such a small kid is building and going in Mach10 in RC.

I really got inspired... and let me post my Scratch building thread of 'Trainer 1' which is easy to fly and a good plane for noobs.

MEROG

Dear Subbu,
Great work on the EasyStar Replica! A further note of encouragement, its a great model to scratch build........ ask me how I know....... been there, done that!

Mine is christened the Easy SpadStar - the reason being that the elevator, rudder and the polyhedral add-ons are 3mm coro. Frame is 8mm plywood rod, wing spar is bamboo. wing had 3 degrees of built in dihedral. fuselage and wings is Thermocole fully laminated with packing tape (very tough and light, holds its own in crashes - ask me how i know!) canopy is a hacked sprite can, motor - 1400kv, esc - 20A and battery - 3s1800mah ( a 1000mah would do but this was what i had spare) prop APC 8x5, Maidened at the Sholavaram Airfield on a Saturday Evening a month back.

Am attaching a couple of pics. Hope I motivate u a bit more - not that u aint motivated enough.....
Gud luck.

Hey, btw the pics r here.................

No money can buy such a cockpit  ;D 

Nice one ! {:)}

Edwin ,
that is great stuff come over sometime to Kovalam , would love to see it fly .
Is the Fuse a PVC  conduit pipe , if not I think that could be a great  substitute as well.

Sai

Dear Sai Sir,
The fuse is actually an 8mm plywood reaper. On the maiden day, after close to 10mins of flight, the Easy SpadStar was caught in crosswinds and i panicked......... and crashed nose first........ and broke the reaper right in the middle.... planning to replace it with a cf tube like in Mr Moss..... would be a lot lighter, i guess. I would be walking into ur office sometime monday or tuesday for the cf and a tx lipo.
And btw, ur thread on props is gr8.

hey guys day before yesterday i finally got a dry spell the plane was test glided first to chech the cg and it was perfect but before we could start off with the power on rain god blessed us with a heavy burst of shower all electronics are safe

oops forgot to congratulate martian 2121 (i believe edwin) on your successful plane

Thanx Subu.

Hi,
Is there any substitute for easystar 2200Kv in outrunner and matching ESC.

Snehal

Yes you can find lots of out runner which run better than in runner on an easystar.
I am using this right now (http://www.rcindia.org/electric-planes/upgrading-brushless-motor-for-easy-star/msg51331/#msg51331), all info about the setup is available on that page.