friends what prop size do u sujest for 800g electric plane(suggest me the motor's kv too)

Emax CF2822 1200KV  prop: 9*5, 10*5

Try out this link:
http://www.rcdhamaka.com/index.php?main_page=product_info&cPath=100_93&products_id=391

how about a 1450 kv motor and 7*4 inch

will be 1450kv and 7.3 effective

go for 8x6 slow fly prop.

Instead of going for 1450 kv.
go with CF2822-1200 kv and 9inch prop.

@swizera: he already brought 1450kv motor i guess 

If he already bought , then its his wish 
I doubt that motor can give enough thrust .

any possibility to increase trust ?like increasing the prop size

i mean without changing the 1450kv motor

i got a 1450kv motor and 8.4 inch prop.does it can give me enough trust to lift 800gm weight

help me pls

sell your 1450kv motor and buy Emax 1200kv motor from Rcdhamaka. 

Battery is 2S or 3S ??

any more ideas

Khan007 firstly ... Know the model ... Is it a glider ? Scale ? Jet ? 3D .... This will decide what thrust and what speed is required to keep it airborne ... And then finalize the power config ...

Khan , you have place order or you have it with you.
If you have just place order than , you can request them to change as they cost same.

If you had it with you , then no choice , make smaller plane with weight less than 500 gm and use on it.

If you really want good thrust of nearly 800 gm than go with other motor. CF2822 will also not give you 800 gm thrust , but can fly your plane.

its a 2200 mah 3s battery

Like for a 800 gms  jet u will need a small prop is it has high wing loading and needs speed more than thrust to keep it air borne ..on the other hand if its something Like a slow stick u will need thrust and not speed so need a bigger prop ... And all this will dictate the motor battery ....

this the plane photo 36inch wing span

Done this from some plan ? Wings don't seem to have aerofoil so won't have lift not a it will be tough getting it airborne as will require a large high pitch prop coz its only speed thats going to keep at aloft ..... Correct me if I am wrong ....

it got aerofoil wing

but its made from aluminium rod ,and coro plastic board,thats why it look like that

This model is similar to Moss glider model i build. Only the wingspan is different. Mine was around 40" and wasn't having airfoil shape. I used 1200KV motor for it with 20A ESC and a 2S 1000mAh battery and GWS 9X5 prop.
I don't know why your model is so heavy... 800gm... since, it seems to be a slowstick...