Hello All,
I had built a CORO SPAD as my first attempt, but the box type shape could not given satisfaction and feel of a real aircraft, which can increase the heart beats, Perform Aerobatics and fun in flying, so I intent to build my second scratch build as CORO MIG 7  because of the beauty of MIG and easy building from Coro sheet.
One of reason which inspired me, that most of the designs which we considered are box type, so I want to  make some more shapes from CORO.
Thanks to Dave West for free Plans. Plan was downloaded from site http://westaero.wingedshadow.com
Objectives
•   To get feel of Aircraft and perform Aerobatics
•   Good  aesthetics of model
•   To Demonstrate the easy building from CORO sheet with beauty.
•   Since Coro is easily available and models are likely crash proof, so to motivate beginners to build models from CORO
•   To demonstrate, that we can build more other shapes also from CORO.
I will follow the original plan and use 3 mm coro for entire build.
Need help and support from all seniors and other members of forum.
Thanks and Regards
Mjet

Sunlikestar is the man who can guide you...He has made one

Thanks Bakya, I have gone through that thread.

Parts are ready to cut.

Parts have been cut down from Coro, but landing gear on wings is a  puzzle for me. Need some ideas from forum members , Pl help me...

Use wing spar to fix and use coro covering for better look and stop longitudinal movement of landing gear assembly that seen in single wire landing gear.

s

Sorry guys, please ignore my post. This was my two year old terror machine taking over my laptop

Here is the progress , I am a slow builder...
Completed the wing ( Flat Bottom)  - Glue used ( Rubber based and Hot Glue)
•   Used Pine wood spur and screwed together
•   Dihedral 4 Inch as per plan
•   Wing Span – 45 Inch
For Landing gear  – Wood block installed inside of wing

Coming up nicely  

If you want ideas on the landing gear, look at the TeaRacer builds too.  They are fairly similar low-winger models.

Thanks Anwar for Moral boosting .. pl review , that what I did for Landing Gear..
I decided to put landing gears made from Cycle spoke ( Gauge 10,  3 mm ) , so glued ( Rubber based ) wood block and small pieces of Ply to provide some space for screws.
This may also provide some strength to spur.

I have completed the Fuse , but the weight of wings and fuse is some higher than expectation ( about 500 gms).

After  torque rod installation  on wings , I doubt , that HXT 9 gms ( 1.5 Kg)  servos will work , need suggestions from forum. Will upload the pictures soon.

Fuse completed , here is the pictures

Good one Mjet, and I agree with you that the box shaped planes though easy to make with coro are boring beyond a point. I too downloaded the plan+buildlog from the Davewest link but lack the will to start. Iam currently making one box shaped mid winger in coro. Maybe when you complete and post the maiden video I'll push myself to try this out  ..
How you made those round formers btw? using wood? did you sand it to shape?

Thanks koushik for good words, round formars made from coro only. Ply formers are not required , we can double the coro formers.

I used only two ply formers and filed to round shape. you can file and get the desired shape very easily by using RUSK File. I have made the wooden propellar for this model by using this Rusk File. will post the pictures of wooden prop making process.

Mjet sir,
where can i get coro sheets?? ..... is it scratch or i can buy it at stationary ??
what do they call it in hindi??

hi.. You got the sheet in pune . Kings papers , Raviwar peth bhore ali. coro plastic.
Regards
subhash
cell-9922225585

in india its coro plast is known as sunpack... just enquire for sunpack of desired thickness in any plywood stores... here in kerala it cost abput 100 for 8x4 size....
 

sunpack .... in a plywood shop..... i am sure people here wud be correcting me " beta it is called sunmica not sunpack"....... hehe

anyways will try thks ... both of u

Hi Sameer,

As mentioned above , that the local name of Coro is "SUNPACK" and you must get it in Nagpur. You can search with the shops , who are involved in Screen Printing.

The prices varies between Rs 100 - 140 for 8x4 sheet.

Quote from: Mjet on November 26, 2012, 12:07:58 PM
Hi Sameermaha,

Screen Printing.

plz abbreviate it to sameer....
thks for the tip....... my cousin owns a screenprinting shop........ he is sure to knw..... thks a lot

Fuse and wing completed

Today I have taken maiden flight of My MIG, but model was moving in a circle (antilock wise) on ground and not able to take off  . Tail wheel was Ok.

After adjusting under carriage, model has take off (20-30 feet only), but unstable and back to ground (left side).

Requesting members for suggestions to correct the model.

Thanks and Regards
Mohan

You should try hand launching it till you trim it out then go for ROG. Was the CG accurately marked and the model balanced; sound like a tail heavy plane. Not sure tho, a video would have been very helpful

I could not take vedio    , but will post the vedio after correction .

Hello all,

Need suggestions and inputs from senior members, pl help.

Thanks and Regards

Not too sure, but check if the model weight distribution is OK, i.e. hold at spinner and end of tail and see if it balances. Also, is the Tail & Vertical Stab properly square? Any warp in the wing or control surfaces?