Hi Friends,

This is my first built.

Electric power system:

AX 2306N 2000kv brushless Micro Motor (thrust 357gms)

AX 2308N 1100kv brushless Micro Motor
http://www.hobbyking.com/hobbycity/store/uh_viewitem.asp?idproduct=5429
With 550gm thrust.

2 6gms servos
ESC 10 AMP

Wing made out of thermocol and still incomplete.
Wingspan 38", Chord 8"
Wooden spar at 1/3rd from LE

Boom out of mirandi woodstick (weight 40gms, length 32")
elevator and rudder out of 4mm Coro

Total AUW is 300gms.

I am looking forward for your help fixing it.

Wing is not complete yet.

Good work their, Amit:thumbsup:
cover that wing with newspaper soaked in 50/50% solution of fevicol and water or with fine cotton cloth 'dhoti' and you are good to go

goodluck

Hi amit , good build.
IMG00377-20120517-2318.jpg   from this pic it seems that your horizontal stab. is bending on right side when seeing from front. make it straight.

thnks bilal and swizera...is the elevator width sufficient for this. It is 10" X 6"? Rudder is 6" high.

Bilal how much more weight the 50% diluted Fevicol and newspaper treatment will add? Right now the wing is weighing 40gms.

And what should be the opt size of propeller for this?

apply face tissues over wings.. with 25% fevicol SH, and 75 % water.. nothing will add as weight after drying.. two layer is far enough.. do not dry it under direct sunlight.. warps.. and its a nice effort..

Roopesh sir, does it provides equivalent stiffness? It may help me a lot 
 I have been covering mine with newspapers, but they add a lots of weight 

Abhay, when we use news paper, it will be much heavy.. but with tissue, nothing will add extra when dried.. here is two examples of my wings from thermocol.. one is 50 inch span and proved well in flight.. stiff.. light.. and withstands lots of crash impacts.. easy to repair..

Roopesh sir, what is that pink color covering.? Have you covered it with something or it is just paint?

roopesh sir,what have you used for reinforcement?

amit, seems you have cut the wing using hot wire cutter.. sand it thoroughly before covering.
best wishes   

thnks Abhay... sand thermocol...will it not break into balls?

Modellers.. to make a thermocol wing, you do not need any hot wire cutter.. instead, make a template, of the wing, and draw it on a piece of thick card board, or paper, and cut it uot all inside with a sharp knife.. then you can keep this as a template.. then take two sheets of thermocol, that thicker than that you need, and make a groove on one side of the sheet, exactly at the area of the cg point of the wing.. then place and glue one thin strip of balsa, or carbon rod, and apply glue on both surface of the thermocol sheets.. then place it togather and add some weight all over the laminated sheets..

wait untill dry..then draw a bottom line after taking a measurement with steel scale.. this must be equal on both tips of the wings.. then draw a second line from front to back.. this also must be precise.. then place the template at the line beginnings.. draw a clean single line with a sketch pen.. then satart to sand.. use 60 or 80 grit sanding belt, while the belt must be on a flat strong piece of ply wood.. make sure that the sanding is logarithmatic..  no hurry.. and will be a mess with lots of flying grains.. clean as you sands.. then after a little sanding, insert the template through one side, and make sure the shape.. contunue to other end.. after the basic shaping, use 400 grit emery paper to smooth once again..

after the smoothing, clean all flying particles and wipe the wing with a cloth.. blow air if possible with vaccum cleaner, in reverse.. cut the wing half at centre, and make an angle with sand paper.. use fast two or five minute epoxy, to rejoin the wing.. this gives you a diehedral angle.. after drying, start to apply the tissue.. how to apply..? its all easy.. place the tissue, over the wing, and dip the brush in diluted glue.. remember.. 25% glue and 75 % water.. if not will be tough to apply as tissue tears off.. then allow all dripping glue bak in to the pot, from brush.. stroke the brush in to one direction over the tissue, and follow to the end.. do not restroke.. the tissue will be a mess.. apply the second one.. along.. and wait for dry.. under fan... when dry, continue the application, while leaving a convenient place to hold the wing all the while.. do not repeat the application in same place again.. instead apply in a continues manner.. after drying an area, can follow then.. after drying can see an unbelievably stiff light wing in hand..

the colour of the wing is not painted.. but it is the natural colour of the tissue.. can buy in lots of colour.. pink.. red.. yellow.. blue.. white.. green.. choice..

            

All my asked and unasked queries are sorted.

and please never under estimate the streangth of the structure completed by the tissue and thermocol.. its too stiff and strong, while light in weight.. means very light.. here are two examples.. of my works..

will add a video log to make a wing from thermocol.. hope it may help you all lots to make a simple plane in an inexpensive way.. but need a little time, as i am tied up in a model aircraft project..

the craft worked above by Amit is a nice one..   

@roopesh sir plz post the video wen u have time and ofcourse dont frget to take care of ur health

Sure.. i have some commited works.. will add it as early as possible.. 

It looks like it will fly and it will get into the air.  That's really never the issue anyway.  The main issue is always if it will "land" properly

I have a micro scale to weight it if you would like to know the all up weight (AUW) w/ battery before the maiden. 

what size is that prop? 

hi lance, good to see you.

I measured the AUW its around 300 gms. with battery its 10X6 prop.

I have 8X4 props too.

10 X 6 is a good start with a 2 cell.  If it's not enough thrust, go to the 8 X 4 with a 3S.  That motor is 1100 kv that was on the Tiger Moth.

I have 4 2S batteries (610mah, 500mah, 800mah) all ready to be tried with this. will charge all these before Sunday. Yes that is the same motor and servo and ESC are also from that Tiger Moth.

For all new pilots, don't be afraid of crashing.  Try not to crash of course but don't let the fear of crashing grip you.  Every new pilot crashes and without mistakes you can't learn.

Roopesh Sir We are desperately waiting for Video of wing