@ mandar : Can you please also check with the toy shop owners, if they can get a spare wing ? Because it is a machine made up, it can not be designed with hands and/or tools also. That curves and dihedral shape is very difficult to get with hands and/or tools. It would be really great if they can get a spare wing. So that i can re use my plane with upgrades.

i dont think spare wing will be available... all these Chinese stuff.....but yes u can make one using 5 mm biofoam......it did not need to be curved even flat would also do and you can make it dihedral....
check this post

http://www.rcindia.org/electric-planes/build-log-russ-40-trainer-(quick)/msg80318/#new

Nice build!

I tried same way on my piper cub wing and it went note down when hand launched.

One of experience flier told me that i keep the thrust axes parallel to the plane axes and due to that trust axes try to match with planes access when throttle is open. because of that it will dive down when hand launch.

Do you know how much up thrush angle you should provide?

Is there any standard angle or formula to calculate the angle of up thrust axes.

Thank you,
Atul 


Did you gave any up

Hi Atul,

about thrust angle....it should be 2-3 degree down and also in right direction...that means motor should point little don words and in the right direction.....

about nose down... it could be because nose is heavy.......

I was thinking opposite of it? 

Can you please upload one photo from side angle so that we can see tail to nose and the angle of motor to the axes of plane?

Thank you,
Atul