after buiiding 300 coro ,help me in building in a plane so that i will not faced these problems

1.       no more broken props , so i am planning that the motor should be on back side like  
                     axn   floater.anybody have any plans for that  plz hepl.

2.       should survive litle bit crashes and the material i have is some sheets of coro and
          refridgerator thermocol
3. electronics weight is around less than 300 gram .


plz help tired of looking so much planes on different websites.

Vineet Try this you can build this easily from 3 mm Coro.

In place of a square fuselage which was made with depron like foam. you can bend the three mm coro from bottom and seal the fuselage from top and the lower fuselage will be rounded and top square one.

You can even cut the motor mount little higher to save props.

http://www.rcindia.org/electric-planes/easy-glider-with-5mm-depron-type-foam/

give me specs of your electronics along with its weights. I will be able to give you the plan modified for 3 mm coro.   

vineet... check this you have some plans here for a pusher.!

http://www.scratchrc.com/Scratch-Built-RC-Aircraft.html

http://www.scratchrc.com/Scratch-Build-Pusher-Planes.html

sent pm  of electronics to sunder sundar sir , dont mind if i call you that now.

will be posting some pics of electronics soon.

Quote from: R/C vish on June 22, 2011, 11:39:30 AM
vineet... check this you have some plans here for a pusher.!

the pusher plans are good but cannot able to download them , what to do??

cant u try shikra from rcforall?

i know vineet is interested in pusher models but i need to ask something.
cant prop savers help him?
Also
its not necessary your prop will break, it can also chip off from the sides, so i think the prop can chip from the rear also?

You really want to stop your props from breaking i suggest you make do "tests" before you actually fly.

Quote from: naatumach on June 22, 2011, 06:48:53 PM
i know vineet is interested in pusher models but i need to ask something.
cant prop savers help him?
Also
its not necessary your prop will break, it can also chip off from the sides, so i think the prop can chip from the rear also?

thanks for rply.

i am using motor from the reverse end i dont think a prop saver can be placed over there

Quote from: naatumach on June 22, 2011, 06:52:01 PM
You really want to stop your props from breaking i suggest you make do "tests" before you actually fly.

test

how??

Quote from: vineet on June 22, 2011, 09:42:19 PM
test
how??

check out reply#39 on http://www.rcindia.org/electric-planes/my-first-scratchbuilt-plane/25/

A small tip... you can always post a direct link to any post. Like this one for Reply #39 mentioned in the above post.

http://www.rcindia.org/electric-planes/my-first-scratchbuilt-plane/msg68436/#msg68436

The link can be obtained from the clickable topic name ON THAT SPECIFIC POST.

And further on the topic of test, see the search results for "glide test" here.

http://www.rcindia.org/search2?search=glide+test

Doing glide tests can really help you save your day (and effort, patience, money, sanity, etc etc).

Please check the prop postion only.



and
http://www.rcindia.org/electric-planes/rcpowers-extra-300-using-3mm-coro/

And I have drawn the pic.
http://www.rcindia.org/for-sale/sale-sale-sale/msg68150/#msg68150

This can be easy for any starters and the prop may be saved as ot's periphery will be covered with coro materials.

@anwar
Thank you sir, i didnt know that.
next time ill keep that in mind.

Im sure someone else might have also devised the glide test, i always get lost doing forum searches.

ok got the test thing .

http://www.scratchrc.com/Scratch-Build-Pusher-Planes.html,

single boom

can i use this idea with 9*5 prop , like can we put motor mount little up for that

Quote from: vineet on June 23, 2011, 08:50:32 AM
http://www.scratchrc.com/Scratch-Build-Pusher-Planes.html,

That does look do-able.

Since you said you are using 3 mm Coro, I think this design is possible if you have a glue gun. All cut outs can be joined together using thin hot glue bracing and where you are sticking two coro surfaces together, then sanded with emery and CA/ Araldite should do.

RC Friends who have worked with coro please suggest modification / improvements please.

Hello,

thanks for the encouragement , want some suggestion over this .

want to clear some points

a .  are the ailerons and rudder  are working right
b.   battery position is yet to be placed wondering where ?  
c.   and anything i do not know

d    ailerons effect is very less
e.  using BROKEN prop , its working fine , just a little bit vibration i thing , will it harm

         

Hi Vineet! Nice build!
Have you done a glide test? That will help you decide the position of the battery.
And why are the ESC terminals (XT60) not shrink-wrapped?

ya i have done it , it is not falling on its nose but it is going side ways as like drifting manner.

Have you tried flying it?

I guess the sideways-drifting could be controlled in flight. If not, try balancing the components.

could it be drifting because of a skew wing?

i dont know what is skew wing ?

but i noticed one thing that when it fly it goes to right and down also ,as if i am using rudder but the rudder is fixed as i am using alerons ,

and i cant hold wings on fuselarge because tape is not working and rubberband i cant use as there is no space .

by skew i mean the wings are not perpendicular to the fuselage.
To check on drifting you can also do glide tests and permanently modify the rudder.

To fix the wing.You can use zip ties like the photos.