RC India

Hi Guys I m new to this forum with old flying experience.

Here is my newly scratch built F22 raptor, it is still not complete.

Wing Span 28"
Power Plant:
2212/06 Motor
30 AMP ESC
2200 3 Cell
3 metal geared servos

Wowie! (:|~
Awesome build!
I know I should wait for a senior to do this, but welcome to the forum! ;D

Pretty neat... keep it up.
BTW,  what AUW are you targetting?

thanks Pankaj

Still the canopy to be done, thinking of making one with the plastic or fiber glass material, but if nothing works out then bio-pack jindabad.

AUW will not be more than 650 grams

Can anyone suggest me the paint technique, because the foam that I am using (Bio-pack) is not paint safe like depron...

Thanks Swapnil

What I use is first a couple of coat of  diluted WBPU and then use fabric paint and finish of with a final coat of WBPU

Thats cool, now i have the follwoing questions.....

1) where do you source WBPU from? do we get it in local market? if yes then what is the make of WBPU? I am from pune.
2) will it add weight after giving a coat of WBPU?
3) You mentioned diluted, how do we dilute? with water or thinner?
4) Which company fabric paint to be used.

thanks in advance.

Hi welcome to the forum. WBPU stands for Water Based Polyurethane... U can dilute it with water.. :)


-Angad

Welcome Joe! Nice build. Care to share the plans?

The WBPU I use is from pidilite - i.e. the company that manufactures fevicol adhesive. Their WBPU is called Aqua Satin and is generally used as a wood finish. I had to call their sales office in mumbai to get hold of a local office and subsequently a dealer who sells in Delhi. So you might want to try some paint shops first. Check my post on cub trainer somewhere a year back for a photo of the container.
Initial coat is about 2:1 ratio with 2 parts being WBPU. It does add weight - on its own with a model your size would go up by about 40-60 gm. Another method to add gloss is to dust the model with talc immediately after applying the coat of WBPU and then using a very fine sandpaper (600-800 grit) to remove the excess talc. But then this is a weight adding method 

Fevicryl is the fabric paint I use and is available in all stationary shops. retails for Rs15 per bottle and to thin this you would need a "medium" also found in stationary shops

Brilliant build!!

Hey VC, thanks dude, this model is from RC grups, thanks to Tomhe for the excellent design, Tomhe's plans are for profile build but in the same thread MetroGTi has converted this plans to full fuse.

check link for the plans and other build instructions

http://www.rcgroups.com/forums/showthread.php?t=723890

thanks pankaj for detailed information, i m already on hunt.... hope to get it in local market.

Wow.. now that is one good build!

beautifully built... {:)}

Nice work....!!!!!

That finished really well....

Hope you maiden this beautiful bird soon and share the video(If any) with us....


 :hatsoff:

I'm a novice here too..

nice build..... cant wait to see your maiden flight video...

good luck

Arun

hey that is one of the finest built!!! great work!!!!

for color u can use Acrylic spray cans, but be careful if u use excess or from too close it will burn ur foam!!!
u will find more info in some forum on how to use those.....
i have used it on my wing and few other model....

all the best for maiden

Ashish

thank you guys,

Ashish,

I had this acrylic spray can but it some how eats my foam, though the can says its water based acrylic spray but it burns the foam. I have gone thru couple of threads and Pankaj has suggested me to use WBPU i will try that. thatnks for tip though.

You must have tried with Compressed Can spray.

I have been using just the acrylic paint water based, thinned with its own medium or water along with a compressor and 0.3mm double action pen spray guns with excellent results on all type of foam.

Only on a Taped foam adhesion is poor it tends to peel off on aberration but no worries touching up again has been never a problem.

Cool Built there  {:)}  {:)} :thumbsup:

Some painting works using only Acrylic Paint water based and Compressor on similar foam here by me

http://www.rcindia.org/electric-planes/depron-mig-29-(fulcrum)-build-from-plan/

http://www.rcindia.org/electric-planes/indoor-micro-flying-under-20-gms-diy-projects/

Yes you are right, i have compressed can spray. I do have acrylic water based paint bottles, i have used them on my my SU-37 diluted with water, these paint bottles works great, I used normal soft flat brush and used a fine roller when the paint is wet. the results are good.

My bad, i do not have a spray gun nor a compressor, I have inquired few shop for the gun and air compressor they are expensive, the compressor quoted me was close to 5K and another 3 K for the gun, so i dropped the idea.

Guys any idea of procuring the spray gun at lesser price? this will help other people like me who really wants to paint by themselves.

Whats available through ebay and locally are all up close to 5K. Even I bought for around same price from ebay.com lucky to have received it safe in India.

Cheapest I have come across till now is at HK you can try that after going through the review.

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9298

This is an another one of the compressors available from HK for air brush painting.

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14005