RC India

So i have started building a new foamy 3 days back and have just completed the fuselage. Members kindly put forward your suggestions and reviews. Thanks.
Here are the pics:

Some more:

Will now move on to the wings. But before that, now i really need inputs from all members.
My 1st question : How do you cover the model(plz briefly describe the process and the materials required) after sanding to cover the minute pores which are formed?
My 2nd question : How do i effectively cut out the block of foam at the center of the fuselage so that i may put in the electronics? Thanks for your time and patience.

Hey that looks great. Did you fuse multiple sheets of depron and sanded it? that causes too much wastage right?
Where are you planning to put the electronics? Will you have a grove to place electronics?

Thanks ashok bhaiya. No, i didnot fuse multiple sheets. I had this 100mm thick block of biofoam, i just cut the shape with the help of a hotwire and then sanded it to get those rounded edges.
Yes, placing the electronics is my next task ahead for which i need help. I certainly need to groove out a chunk of the foam to get the electronics in for which i need suggestions on how to do it effectively.

HI Rohit, great job with the hotwire and the smooth sanding. The structure sure looks good :)

Whoa! Welcome back Ritesh bhaiya and thank you so much for the compliment.

Anyone with the answers to the questions!!!

1) You can use  colored packaging tape(wondertape). This is the best in my opinion as it gives both glossy looks and great strength to your model. You can also use paint- any water based paint, fabric paint, but it doesnt add any strength just looks!
2) Are you planning the fuselage compartments like easy star? You can cut  it in half by hotwire. I think you can make compartments by heating a block of wood of same size and pressing it hard.( Just try this on some scrap and practice. I havent tried this )

fantastic job!
such a nice design and finishing...............
you can use vinyl sheet for the covering. these are having strength and nice for decoration of rc models.
you will get it from Dalhousie square in Kolkata.

its really nice job!!!! great finish like pro....

putting electronics will be little tricky in there!!!!!
u may cut out some bottom and put ur electronics in there.....

or say cut it into half vertically make some compartment for electronics and motor as well...but i think u must not be willing to do this as it looks so nice...

i think more experience people on this forum can help u better!!!!

Thank you so much. Sure will try that.

Thanks so so much for the encouragement.
Yes, i did cut the fuse vertically into two separate parts and took out the chunks where i plan to put the electronics and then glued the two parts back. It looks the same as outside and also has the much needed space for the electronics to be put into.

ohhh so u already did that grt!!!
try to make some hatch or say opening from where u can have access to electronics....
may be from top, where u will attach ur main wing would be perfect place for this!!!! of course if the wing is removable!!!!

cheerssssss

Yes thanks again for the valuable suggestions.
I ll just leave the top part of the space for the electronics open. During the flight, ill put the wing over it and tie it down with rubber bands. Will that work?

I just wonder, won't the vinyl sheets be too heavy if i cover the entire fuse with it? If so, is their another replacement?

Vinyl sheets are not heavy.it's just like stickers. you have to peel it. We generally use vinyl for foamy as well as balsa models bcoz of reflective and glossy.

You could try with color tape or thin color film for covering.

Oh thank you.

Sethji,
Happy to see your post. Long back. but your homepage perhaps a little bit bulky as always it opens up slowly with slow response (while Scrolling) even in my 2MBPS broadband connection (Downloading speed more than 400 kbps, uploading speed >144 kbps). Please be with us. Now we have plenty of materials. Styrofoam, High dencity thermocol, Coro, CA Glue, Electronics in Kolkata. Of course, those are not sold for modeling but other purposes.

Rohit, why shrink-ed into Sofa or relaxing after long sanding ? Cut with hot knife or bended 1A bend hot wire cutter for making space of  Electronics. But the space of pushrod, you have to cut in two pieces. What is the current weight of fuselage ? please dont throw the large waste blocks. They can be used for free flight gliders.

Take the 40V/5A Power supply from my office. It's in the office and cut the fuselage. You can take in absence of me also just informing in office.

What about the wing ?Thinking of using Coro or same foam ?

Thanks.

Well, thanks kalyan da. BTW i was watching TV sitting on the sofa with my fuse on my lap after having already sanded it. My sister decided that it was the perfect pose for a photograph and so there you have it.

Well, Sethji's homepage loads quite quickly in my computer without any problem.

Why dont you use the same technique as half cut fusulage with compartments inside and detachable wings?

I didn't understand your question Ashok bhaiya?

Check out some of the Easy Star pics and its fuselage. I said you can mimic the same idea for fusulage.

Oh ok thanks.
I got confused since there wasn't any pictures attached with your post, so i was wondering which technique you were talking about?

hi,
long back i was doing practice to open a slot in a dense thermocol block like you have. seen a video in youtube and finally i was able to dig a slot in the block.
see the pic below and try to understand the illustration and text.
Sandeep

hi,
long back i was doing practice to open a slot in a dense thermocol block like you have. seen a video in youtube and finally i was able to dig a slot in the block.
see the pic below and try to understand the illustration and text.
Sandeep

yes sandeep sir
I did the same thing....

Sure sandeep sir, will keep that in mind next time onwards.

@avishek : how do you plan to attach the push rods in your foamy?

I will attach servos near to stabilizers on fuselage. I left tube type hole at inner fuselage to pass the servo wire to the end of fuselage.

So, finally after a long delay, the foamy, RG1508 is complete, 10 mins of work remains on it. Everything is done except the painting, have decided to do the painting after the maiden, will post the pics tomorrow.

Alright so after 3 months, and a bit of hectic work in the last couple of days, I finally finished painting my plane and have got the final product which is ready for the maiden. It is a bit of Cessna 182 and 185 actually an average of both.  ;D

Now, let me begin with some pics

  :o
it looks like an RTF :bow:
Rep++

Really nice.....great job.... :bow: :bow:

I couldn't say a word cos my mouth is wide open and my eyes are going :o

It looks awesome man.  :goodjob:

Thank You so much sunlikestar, ankit and azhaguvel.

Thank You so much VC bhaiya and Kalyan Da, and to all those who have given me your valuable suggestions, it wouldn't have been possible without you.

Good job. Looks fantastic! :) Have you used any reinforcement for the wings?
And whats the AUW?

I feel ashamed to call myself a scratchbuilder after this!

Rohit, I hope you understand Bengali. There is only one term to describe this beauty "Fata Fati Guru!" ;)

CONGRATS!

Rohit's just gonna xplode now  :giggle: :giggle:
But none-the-less hats off to the build and finish  :salute: :salute:

That baby looks like it was imported from HK. Fabulous build!

If I may be allowed to add 2 suggestions here:

1. Change the yellow rubber bands to black.

2. Get some (4) stickers cut from a car number plate sticker seller - VT - ROG and slap them on the fuselage sides and wing top and bottom. Voila!

Thanks Rajath. Yes have used Carbon fibre for the wing. Will put the details up soon, in a video.

VC Bhaiya, you're the true role model.

Final pics!!!

Can change the thin rubber bands(the one which goes diagonally) but I dont have a black colored replacement for the thick one.

Yes, will do that. Thanks.

Build details, specifications and a short video to follow!!! Good night!!

Good work rohit!!! it really looks like an arf

Thick black rubber bands = Old scooter / bike tyre tube (available for free) + metal scale + sharp cutting knife = Simple!

Thank you so much Ashok bhaiya.

@VC bhaiya :  :giggle: :giggle: LOL Yeah

Hey nice work!
I like to share with you that even I have made a depron (foamy) aircraft, its 99% done, just a slight paint job is left!
Will post pics soon!
I started constructing it since December last year... Named it as IND333
I made the wing span of 54 inches and total weight is 982 grams!!! Trying more and more modifications!

If you have really made this, no doubt, you are a master in craft, and that glue you use is the best!! :thumbsup:

Hey thanks Globalmind and yes I have made this but I am not a master in craft, just a beginner.  ;D

Rohit,
Damn busy I was that cannot read this.

Grate fnish. Anyone can tell it as machine finish or clone including me.

Eager to clone at BE&S`U. Foams, Glue, Hot wire cutter and other gears are waiting for cloning. What motor you used? 150 watt 2812 or old 350 watt ?.

What is the front wheel ? A Closeup pic please. (From VKSingh?)

Thanks Kalyan Da.

The motor I used is the 2212-10, 1400kv 140 watts. Well, my exmas are over and I have a two months long vacation.

The front wheel is basically, the landing gear of an old RTF plane that I have. I took out both the wheels stuck it together to make a single wheel and put it on the nose gear. 

Dear Rohit,

Please accept my heartiest  :salute: :salute:

What did you use to attach rubbebands to fuse?? Nylon screws?? what length??

How did you sand foam to an airfoil??

How much is AUW?

 :help:

Thank you

Vishwas

Thank You so much vishwas.

Well, I had these normal metallic screws lying down in my house, of about 2 and a half inches long. I used that.

For sanding you require lots of patience. I basically use two sand papers, 80 and 160 grit metallic grains. Stick that to a piece of wood or a sample foam block(which is what I did) and then just sand till you get the desired shape. For deep sanding use the 80 one and for light sanding use the 160 one. I just drew an airfoil shape on the cross-section of the wing and then sanded it accordingly.

Haven't measured the AUW.

Congrates!!! it looks amazing. pretty neat finish!!!

all the best for maiden!!!

yeah looks good, w8ing for ur maiden video....

Yes hopefully the maiden is good enough for a video!!! :giggle: :giggle: :giggle:

gr8 build rohit, couldn't call you as i don't have your number, was there at RCTC yesterday , quickly organised a meet , one phone call and some of us were flying, did my raptor 90 maiden. will be there on the 21st morning, can organise your maiden at RCTC, kalyan da has my number. Gr8 build , once again check your thrust line , is it skewed slightly starboard, re-check :thumbsup:

Hey thanks Gusty bhaiya will surely correct it. PMing you my number. Oh C'mon bhaiya you could have Pmed me a day ahead, I am so eager to meet you all. Anyhow will surely be there on the 21st and this time hopefully you'll come.

So, went to maidan at 5.30 am today for the maiden. Hand launched it, excellent glide performance. Just that the day was too windy, I was really having a hard time controlling it, decided to land and save the model. Have a few cosmetic damages due to the hard landing, other than that everything else is fine. Waiting for a calmer day. Sorry, don't have the video, I took the video cam with me, but had forgot to charge it.  :banghead: :banghead:

Augustinev, could you care to elaborate how you determined this just looking at some photos?  The reason I am asking is that I cannot make out the difference and when I am into scratch builds, I think understanding this part may mean the difference between a crash and a safe landing.

Pankaj
 

So, I actually decided to put the 3 sec video that the camera did shoot before it shut down due to low battery  :banghead: :banghead:. Haven't been able to take it since, was busy with the extra 300. Anyhow, here's the intro with the 3sec footage at the end.

http://www.youtube.com/watch?v=YPOnTd1S2As

Nice video but I like the Huan heli video better  ;D
Looking forward for the flight video :thumbsup:

Thanks Sunlikestar, yeah this was a bit more serious.  ;D