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« on: February 20, 2012, 12:20:24 PM »
ashJR7202
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For Long wanted to Build big Flying wing, which will fly gently, stable and can ride on thermals.......

so decided to go for 50" flying wing....then Praddy gave me idea of making ALULA instead of traditional flying wing....and i like this bird...

it has slightly forward swept and dihedral of around 1 degree.......

Decided to make own plan..downloaded few pics from original website and some forum and started creating Vector drawing in CorelDraw.......after completing took print out in A4 size, stick  it together and cut the main wing.

Decided to make KF2 airfoil.. main wing was cut in 8 mm Biofoam, KF2 step airfoil in 5mm and control surfaces in 5mm.

planning to keep it as light as possible...so planning to use 2208, 1800 kV motor with may be 1000mAh 2s Lipo and 7" prop.. power system is not yet finalized...will have to experiment....motor will be mounted in the front in puller config..

here are few pics

AshishX6_372.jpg
BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #1 on: February 20, 2012, 12:27:12 PM »
ashJR7202
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Few More

AshishX6_379.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #2 on: February 20, 2012, 12:35:24 PM »
sundaram
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Subscribed  Clap Thumbs Up
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« Reply #3 on: February 20, 2012, 12:43:11 PM »
SunLikeStar
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Good going Ashish, cant wait to see this baby fly Thumbs Up
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« Reply #4 on: February 20, 2012, 12:46:59 PM »
ashJR7202
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will definatly try to complete this till weekend  Head Scratching. so that we can maiden it on sunday...may be u will have to launch it for me  Clap...and of course dont break it.... Grin Grin
« Last Edit: February 20, 2012, 03:22:31 PM by ashJR7202 » Logged

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« Reply #5 on: February 27, 2012, 12:10:12 PM »
ashJR7202
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over the weekend was able to make removable rudder, control surfaces and able to mount servo.....

to make rudder detachable, i used 2 cm long, 5x3 mm hollow Cf pipe and fixed it on the fuse, and used 3 mm CF rod in the Rudder so that it can be easily inserted/attached to fuse..here are few pics

P1010091.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #6 on: February 27, 2012, 12:12:37 PM »
ashJR7202
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Control Surfaces attached with CA hinges and Evotite

P1010099.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #7 on: February 27, 2012, 12:18:18 PM »
ashJR7202
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Servos and Horns mounted

P1010114.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #8 on: February 27, 2012, 12:20:16 PM »
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mast  Good job
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« Reply #9 on: February 27, 2012, 04:14:19 PM »
abhay
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Wrong Brothers



+1 sunlikestar  (mast)Giggle
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« Reply #10 on: February 27, 2012, 06:11:02 PM »
ujjwaana
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Nice build Ash!! The detachable fin is good. Did you consider Nylon bolts instead of CF Rods ? you can get M4/M6 bolts long as 2 inches.
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« Reply #11 on: February 27, 2012, 06:53:23 PM »
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Superb Build Ashish!!!!!
yet another model with perfection.

Shreekant
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« Reply #12 on: February 27, 2012, 06:58:03 PM »
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Ash
That looks like a good slope soarer
Isn't the original design supposed to be a sloper or a combat wing ?
Xantos
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« Reply #13 on: February 27, 2012, 06:59:00 PM »
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Ash
That looks like a good slope soarer
Isn't the original design supposed to be a sloper or a combat wing ?
Xantos
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« Reply #14 on: February 28, 2012, 09:21:55 AM »
ashJR7202
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@Ujjwaana,
thanks yaar, i was also thinking same, it was better option but would have taken more time in getting it so thought of completing it with CF tube and rod

@xantos,
original design is a soarer, but thought of putting little power to it...lets see how it fly...

Cheers
Ashish
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« Reply #15 on: February 28, 2012, 10:12:33 AM »
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which type connectors are you using for servo (seems like snap on), i have never used thats why asking .

what is the motor specification and battery you will be using

waiting for the maiden
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« Reply #16 on: March 05, 2012, 11:47:14 AM »
ashJR7202
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Finally completed and was able to maiden it on sunday.... Clap

thanks to Praddy and SLS...to successfully maiden it...test pilot was praddy and launcher was SLS...

initially used CF 2805/1600, with 6" prop and 2s 1000mAh battery to keep setup light.

but during maiden we realise than it is just able to fly level....so changed setup to 2208/1800 motor with 6" prop and 3s 1000mAh battery..and wow it started climbing pretty decent.....

it was really wonderful day.. praddy, SLS and me enjoyed flying this bird... it was gentle....pretty stable.....

unfortunatly i forgot my camera so video this time..but next time will surely do it...

now planning to upgrade it with folding prop and to build canopy to reduce drag...

here are few pics

cheerss

AshishX6_383.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #17 on: March 05, 2012, 11:49:24 AM »
ashJR7202
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which type connectors are you using for servo (seems like snap on), i have never used thats why asking .

what is the motor specification and battery you will be using
HI vineet,

servo connectors are standerd one, JR type.

motor is 2208/1800 kv, battery used is 3s 1000mAh
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« Reply #18 on: March 21, 2012, 12:50:03 AM »
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where can we get Depron or any other type of foam in pune.. the exact shop location would really help...n whats the approx cost of sheet(also please tell the std size we get)... thanx in advance..  Smiley
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« Reply #19 on: March 21, 2012, 09:28:34 AM »
ashJR7202
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It is called Biofoam here in Pune as well as mumbai...it is available in number of shops at Bohari Lane at tulsibaug and also in Aundh

cost is around 5mm: Rs 60-70, 10 mm: Rs 125. these prices are amost 1.5 times that are in mumbai!!!!
« Last Edit: March 21, 2012, 10:29:23 AM by SunLikeStar » Logged

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« Reply #20 on: March 21, 2012, 09:40:19 AM »
ashJR7202
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Finally got chance to take some videos on sunday, thanks to AMint (SLS) and prady  Hats Off!!!!

normal flight:



Alula in the crowd, with eagles easy star1 and Amits glider



Some low pass by Prady



Cheers

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« Reply #21 on: March 21, 2012, 10:32:03 AM »
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we had beautiful thermals that day Smiley
waiting to see some colours on this bird Ashish Thumbs Up
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« Reply #22 on: March 21, 2012, 05:46:11 PM »
ashJR7202
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Ha yaar, and such long flight!!!!

for color scheme Praddy gave me some ideas..lets see..
« Last Edit: March 21, 2012, 07:04:21 PM by anwar » Logged

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« Reply #23 on: March 31, 2012, 02:41:21 PM »
ashJR7202
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Here are few pics of ALula taken last week

Alula Dance.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #24 on: March 31, 2012, 02:46:12 PM »
ashJR7202
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Yesterday, made colorful sceme for Alula in CorelDraw and got it cut on redium.

here are few pics of complete scheme.
1st: with flash..so radium is shining...

AshishX6_417.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #25 on: March 31, 2012, 02:53:10 PM »
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That is so awesome Ash..reminds me of Christian Eagle Smiley
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« Reply #26 on: April 05, 2012, 09:35:24 PM »
ashJR7202
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thanks Ankur,

after making beatiful color scheme i started building canopy for this bird...here are some more pics

AshishX6_399.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #27 on: April 05, 2012, 09:36:10 PM »
ashJR7202
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putting it on the bird

AshishX6_410.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #28 on: April 12, 2012, 10:42:44 AM »
ashJR7202
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Flying colorful...Alula

P1010188.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #29 on: April 12, 2012, 10:43:36 AM »
ashJR7202
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some more

P1010210.jpg
Re: BioFoam 50" Alula - Powered swept forward Flying wing
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« Reply #30 on: April 12, 2012, 10:56:21 AM »
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Sirjee beautiful Sirjee! Bow
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« Reply #31 on: April 12, 2012, 12:44:23 PM »
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Hi Ash

The bird looks beautiful in air. have you used some covering on the wings leading edge? It looks so shiny in the pics.

Happy flying
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« Reply #32 on: April 12, 2012, 12:46:35 PM »
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The leading edge is covered with a strip of fiber tape.
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« Reply #33 on: April 12, 2012, 01:00:49 PM »
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Looks great ASH sir Smiley
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« Reply #34 on: April 12, 2012, 02:34:48 PM »
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Tooo Good!! First I thought its an ARF, but sadly, one has to make its own!!!
Good going Ash!
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« Reply #35 on: April 13, 2012, 10:27:38 PM »
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finally i found the shop where we get biofoam.. I am posting so that every one finds it easy.. Smiley
Thak you ashish sir.. Smiley

Kings Paper & Stationery
S No 343, Bhoriali, Raviwar Peth, Pune - 411002. ph: +(91)-(20)-24481924
map link : http://www.justdial.com/Pune/kings-paper-and-stationery-%3Cnear%3E-raviwar-peth/020PXX20-XX20-000783454255-P1Y3/map

latest costs:
3mm big sheet.................................Rs 125
8mm sheet normal size.......................Rs 80
10mm sheet normal size.....................Rs 100

Now I have one more query..

I asked the shopkeeper what glue do i use to stick biofoam.. he said Fevicol SR

Is there any other faster glue we can use with biofoam or thermocol?
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« Reply #36 on: April 13, 2012, 10:40:41 PM »
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Please explain the terms "normal size" and "big sheet". What are the actual dimensions?

You can use Fevitite Rapid or Decoration glue to join Biofoam.
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« Reply #37 on: April 13, 2012, 10:49:06 PM »
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actually i had asked him the dimensions but forgot them till i came home Tongue
I thought it better to not give that information instead of giving the wrong information.. Smiley
I ll go there again in some days and update my post

also where do we generally get fevitite or decorative glue from, whats its commercial name and how much does it cost?
« Last Edit: April 13, 2012, 11:48:15 PM by SunLikeStar » Logged
 

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« Reply #38 on: April 14, 2012, 12:36:53 AM »
allthatido
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Happy is a man whose hobby is his profession



Biofoam is also available at Venus Traders  FC road but at a slightly higher price.
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« Reply #39 on: May 28, 2012, 11:08:43 AM »
ashJR7202
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I am attaching the Full A1 and Titles A4 Size plan i created to build this Alula. I used CorelDraw to create plan and then publish it in PDF. it will help, if anyone willing to build this one. this plan does not include canopy, but basic wing and KmF2 airfoil sections. one might need to alter tail piece so that it will not hit ground while landing

* Alula_50.pdf (15.01 KB - downloaded 703 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
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Hanger: Mini Yak-54| 210 Phantom | SU-47| F-15| EuroFighter|Scrappy|SU 27|Eurofighter|Sukhoi PAK FA
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« Reply #40 on: May 28, 2012, 11:23:14 AM »
roopeshkrishna
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roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
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HYDRO PLANER.....



nice machine.. Clap Clap Clap
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« Reply #41 on: April 12, 2013, 05:33:47 PM »
ashJR7202
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recently we had Night flying session at PanCard club, i put some LED Srtips on it, and it looked awesome
here are some pics and videos



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« Reply #42 on: April 14, 2013, 08:52:19 AM »
hangingtough
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what do you use for wing stiffening
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« Reply #43 on: April 14, 2013, 09:05:32 AM »
ashJR7202
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for wings i used 5mm hollow carbon fiber tube!!!
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