But why spend money when I am getting all of it for free... I will find some bigger sheets ... I will get them from retail stores who print their offers on them and hang them in their shops... they are 3mm or 4 mm I guess... I will not use it if its 4mm

Btw...total cost of my plane till now is rs ZERO... plus my effort and time... ..that sounds good...

Pls sugest a motor esc,lipo, prop combination... length of plane is 45 cms... wingspan 80 cm and zero dihedral. AUW must be around 1 kg.. weight of structure of plane is around 100 gma Right now...it will increase to around 200 grams oncluding the wings...please take note of my budjet...4k... no need of tx/rx setup...payload 100-150 gms( onboard computer and camera)

Your weight budget seems to be a bit off. I have used coro. It is not that light..

Just the fuse weighs 100 gms without decorations and landing gear... yes, my estimation might be wrong ...the weit of the body might be more than 200 gms

Got two bigger sheets of coro of size 12"x 18"... hope I can make two wing halves out of them

Topalle, I'm not an expert, but here is my two paisa:

1) First focus might be on getting the airframe airborne and controllable - aesthetics etc come at a pretty later stage; typically one will make and break a few models before "getting there" where the craft is more than just predictable. A box designed fuse is simplest to start with I believe.

2) The concept of controlling via raspi is great (and unique) but raspi has substantial lags in processing from GPIO (its not intended for realtime automation or control), and then there will be network lags over 2G. There will be some teething problems and some unexpected results but as long as you stick with the 22ms RC frame rate, and as long as you are not expecting your model to perform precise 3d maneuvers, all should be well; Your major time will be spent in deciding between various options and creating the required protocols etc (e.g. How would a packet received via GPRS be converted to a useable command, would you use a single PPM signal and use a johnson counter to demultiplex, or use 4 separate PWM GPIO lines on raspi to connect the servos; what would be the packet architecture, remember you're communicating over 2G so you want packet size to be super small, error detection and correction, what if one byte is corrupted or goes missing, GPRS connectivity is lost, how would things reset themselves etc, would you use buffering?). There will be more.

All the best. Rest assured there are a lot of people around who will be willing to help.

GS

PS: It is useful to get a bigger sheet of coro as you will be able to create large wings with lesser cuts. Being an AFMA I'm expecting you'd want the craft to fly slow to start with

Quote from: anwar on September 11, 2013, 08:40:43 AM
"AFMA" (Autonomous Flying Model Aircraft) zindabad.  "UAV" murdabad !

Saw this thread fort he first time,

+ Anwar Bhai

Great Old Wine, New package seems great !!

Finished the fuse build and is in one piece...made from single sheet of coro.... tail and rudder attached...will post pics tomorrow...  weight of fuse is 130 grams till now... btw experimented with feviquick and works miraculously
The wings will be built on Sunday...

All the technical issues will be attended to after the plane is flyable but thanks for pointing out...

Here are the pictures of the completed(?)fuse..
Can anyone tell what to use for landing gear
( I have used wheels of toy cars but they are too low and the plane is touching the ground when kept on those landing gear

ok.hey just look at flutter wireless development board with a range of 1 km may be it might be use full

http://www.flutterwireless.com

thanks

Use bottle caps.

will it bear the load of an 800 gm plane landing?

It will depend on the bottle caps you are using and your building skill. I use two caps for each wheel. 4cm dia. Use cycle spokes nuts as the shaft bearing.

Thanks

Will rubber power be able to lift this plane off the ground given good enough wings providing good lift?

I really doubt that