Hi all,

I have designed a foamy Yak 55. I will start building the model & will share with you my progress till the flight... the plane is designed slightly bigger than the normal foamies it has wingspan of 38 inches.. i wanted slightly bigger as its easy to fly outdoors in wind.

Sharlock

good one!!!! what is the motor ur planning to use!!!!?

The motor is brushless Chinese make http://www.unitedhobbies.com/hobbyking/store/uh_viewItem.asp?idProduct=4915
battery is 1300 lipo
prop 10x4
radio JR

The fuselage almost done.

Coming up nicely

What glue are you using ?  And what is the thickness of the foam ?  Planning for any reinforcements ?

The glue is our great Indian glue "Fevicol" great for this job & better than the expensive foam safe that i have used in the past. The foam is 6mm thick, I will be using carbon fiber rod for reinforcements in the wing.

Plain old white color Fevicol used for wood work etc ?  Fevicol has many many types now, hence the question.

I use the Fevicol "MR" white adhesive works the best...

some more updates

Wings & tails feathers before joining. I need to bevel the control surface end so i can get the max throw for 3D flying.

For the paint scheme for this plane i am planning to go for red & yellow with black chex.. on the wing tips

Here is the wing attached & reinforced with a 2mm carbon fiber rod this will be enough to strengthen the wing.

Quote from: sharlock on October 08, 2010, 10:07:28 PM
The motor is brushless Chinese make http://www.unitedhobbies.com/hobbyking/store/uh_viewItem.asp?idProduct=4915

It appears that the motor is way too small for this size. I recommend you put this.
http://www.unitedhobbies.com/hobbyking/store/uh_viewItem.asp?idProduct=5354

and a 8040 GWS prop.

I will be experimenting with different motors. Lets see how it performs

here is the trim scheme for the plane before painting. I will start the painting the model with black chex on the nose & the wing tips

Finally painted mostly complete, only tail plane & bottom of the plane needs to be painted. I made a mistake by making a slot for the rudder servo in the very front of the fuselage actually i was planning to use a pull-pull system but later changes my mind. I will install the rudder servo in a normal push rod style near the tail.

Nicely done !!     

Thanks..    more to come after i install all the gear.

Hey,

What colors are you using to paint this as it doesn't look that it's being airbrushed

Thanks
Hellyflyer

I used fevicryl acrylic paint to paint this model. I have a airbrush but did not use it.

Cool I am planning to use the same on my Coro Build 3d plane. 

Quote from: Hellyflyer on October 11, 2010, 01:03:57 PM
Cool I am planning to use the same on my Coro Build 3d plane. 

The acrylic color should work fine on your coro best results will be if you airbrush it, as the paint is thick & leaves brush marks on it.

Brushless motor installed.

Almost all done painted the bottom & tail plane parts.

Good One. Nice Color Scheme... Is this Fevicryl ? with normal paint brush?

It looks that the motor is a bit small for this. You may be able to fly it, but I dont think it would be good for 3D. Post the updates.