RC India
Welcome Guest, please login or register.
 
Pages: 1 2 [All]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: November 18, 2010, 02:42:37 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010




While I put my thermocoal P51 build/repair on hold, I decided to start from scratch and start with the bio foam. Its more durable, light weight and the plane profile is itself very much glider like to help me learn 3d flying.

I took the plan from this thread
http://www.rcgroups.com/forums/showthread.php?t=1058716

I resized the plan to get the following dimensions after the cut

Wingspan: 700mm (27.55 inch)
Fuselage length: 610 mm (24 inch)

Planned electronics:


TURNIGY 2204-14T 19g Outrunner - Capable of 240-260gm thrust
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6547

Mystery 12A Brushless Speed Controller (Blue Series)
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9485

3 x HXT900 9gm Servos
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=662

Rhino 610mah 2S 7.4v LiPo Battery
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=7305

Spektrum AR6100E 6CH Reciever
http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPMAR6100E

Prop: Not finalized but most likely this one...

GWS EP Propeller (DD-5043 125x110mm) 5 x 4.3
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10034


The foam is amazing and big enough to make 2 such planes from 1 sheet and still have some left over. I attached a pic of remaining sheet after I cut the plan. The CD is placed in the pic for size comparison.


Next thing is I need carbon fiber rods and fiber tape... any good alternative for both?

Cut Plan.jpg
Sukhoi Su-31 - 3D Foamy
* Cut Plan.jpg (22.42 KB, 800x481 - viewed 1554 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #1 on: November 18, 2010, 02:46:18 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



I did a before assembly weight check, bare kit + 3 servo + 610mah batt. + esc + motor was coming to 150-155gm after including the remaining push rods, fiber tape & carbon fiber rods.. I am expecting it to be near about 180-190gm... with a motor capable of 250gm thrust I dont think it will be any problem... lets see
Logged
 

Read
« Reply #2 on: November 18, 2010, 03:07:18 PM »
ashJR7202
Plane Lover
Forum Hero

*****

Reputation Power: 8 
ashJR7202 has no influence.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Intermediate
Posts: 651
Join Date: Apr, 2010



this looks neat!!!!

i have little doubt abt motor!!!! dont trust those numbers

i built 25" yak out of 5mm biofoam and used C20 motor from HK with 2slipo and 8x4 prop, it was just enough, but when i installed CF2812 with 3s 800mAh lipo, it fly like real 3D bird!!!!

try using 5gm servo, i used these on my yak!!!

all the best

Ashish

Logged

Hanger: Mini Yak-54| 210 Phantom | SU-47| F-15| EuroFighter|Scrappy|SU 27|Eurofighter|Sukhoi PAK FA
Blade MCX| Blade CP PRO
JR XP7202| DX7
 

Read
« Reply #3 on: November 19, 2010, 04:26:31 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



And its completed with all electronics and carbon rod. I went to RCDhamaka's office and had a nice interaction with Karthik & Sanjeev there... lovely people and nice collection they have. Learned some lessons, was a good evening overall. ok back to plane, I bought Fiber tape & carbon rods to complete my plane.

I had to use little different setup this time than my P51, I used 4 servos instead of 3 as the tail elevator is single piece not two. I am using Elevon setting on Dx6i for elevator/aileron mix and then mix 1 is set to elevator + Aux channel. Tail servo is attached to Aux channel.

Any better solution for electronics setup? I am using OrangeTX ... my prop saver bands are lost somehow Sad so used normal rubber for testing and for sure I could not push all the way up. Will need to wait till I get prop saver bands to do a test flight..

Can anyone in BLR land me some to test it over the weekend?

HPIM6951.jpg
Re: Sukhoi Su-31 - 3D Foamy
* HPIM6951.jpg (65.35 KB, 749x655 - viewed 1939 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
« Last Edit: November 19, 2010, 08:16:09 PM by findvikas » Logged
 

Read
« Reply #4 on: November 19, 2010, 04:27:17 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Yeah... I have used lots of fiber tape to make leading & trailing edge. Its awesome quality tape, I might order some more.
Logged
 

Read
« Reply #5 on: November 19, 2010, 06:50:29 AM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



my prop saver bands are lost somehow Sad so used normal rubber for testing and for sure I could not push all the way up. Will need to wait till I get prop saver bands to do a test flight..  Can anyone in BLR land me some to test it over the weekend?

We get replacement prop-saver rubber bands from shops that cell parts for carburetors of cars, etc.  They are known as "O-rings", and come in different sizes.  Remember that even though they look stiff, they can stretch quite a bit if you use something like a screwdriver while installing it over the prop.

BTW, why do you need elevon mixing on a plane like this ?
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #6 on: November 19, 2010, 11:28:27 AM »
foamybuilder
Plane Lover
Forum Hero
*****

Reputation Power: 8 
foamybuilder has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 626
Join Date: Sep, 2010



And its completed with all electronics and carbon rod.

Looks cool...When r you planning to fly it. I need to check your Dx6 transmitters features also, couldnt do it last time..We plan to go tomr morning for flying..
« Last Edit: November 19, 2010, 12:40:23 PM by anwar » Logged
 

Read
« Reply #7 on: November 19, 2010, 07:19:22 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Can we go on Sunday instead? I have a little get together at my place tomorrow so cannot go tomorrow morning. Sad
Logged
 

Read
« Reply #8 on: November 19, 2010, 08:12:03 PM »
Jatayu
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Jatayu has no influence.
Offline Offline

City: Tampa , USA
State: OUTSIDE INDIA
RC Skills: Advanced
Posts: 281
Join Date: May, 2010



Nice Build!!!

I'm building lil-ripper to fly this weekend, will be ready by sunday,
so if u guys are talking abt going to E-city ground to fly, i can come on sunday....

BTW, I was at Infy today and tried to check out the area marked on the map but it got dark by the time i went there...
Logged

Spektrum Dx6i | Blue Baby |  Fast Cat | TB-20 | Speedy | Lil' Ripper| Little Elley| PT-20 Ryan | Delsoro - SAE Heavy Lifter | Hiller 450v2|2x AXI 2217/2|2x Castle Creations- Thunderbird 54A| 2x Thunderpower RC Lipo 850mAh 65C| 10x Futaba s3114

SAE Aero Design West- 2011
1st Place Highest Payload Lifted
2nd Place Operational Availability
 

Read
« Reply #9 on: November 19, 2010, 08:15:17 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



I think foamy was talking about going to hoskote lake bed.. join us there if you can... its superb area for flying with high grass too so that you wont damage anything on crash. Where you stay in BLR?
Logged
 

Read
« Reply #10 on: November 19, 2010, 08:17:14 PM »
Jatayu
Plane Lover
Forum Veteran

****

Reputation Power: 4 
Jatayu has no influence.
Offline Offline

City: Tampa , USA
State: OUTSIDE INDIA
RC Skills: Advanced
Posts: 281
Join Date: May, 2010



I also bought prop savers from Sanjeev recently...i guess i have an extra O-ring with me, u can have it for testing no prob....
I stay near familymart or metro on kanakpura road...or usually hanging aroung in jayanagar...
-Skanda
Logged

Spektrum Dx6i | Blue Baby |  Fast Cat | TB-20 | Speedy | Lil' Ripper| Little Elley| PT-20 Ryan | Delsoro - SAE Heavy Lifter | Hiller 450v2|2x AXI 2217/2|2x Castle Creations- Thunderbird 54A| 2x Thunderpower RC Lipo 850mAh 65C| 10x Futaba s3114

SAE Aero Design West- 2011
1st Place Highest Payload Lifted
2nd Place Operational Availability
 

Read
« Reply #11 on: November 19, 2010, 08:28:55 PM »
rohitgupta322
Plane Lover
Forum Hero

*****

Reputation Power: 12 
rohitgupta322 has no influence.
Offline Offline

City: Illinois, USA
State: OUTSIDE INDIA
RC Skills: Beginner
Posts: 986
Join Date: Feb, 2010



Looks really neat. Clap
Logged

Be Inquisitive
 

Read
« Reply #12 on: November 19, 2010, 08:44:14 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



BTW, why do you need elevon mixing on a plane like this ?

I realized you were right, so I used Y cable instead to get the same effect. and I saved 2 channels on the RX Smiley


Here is how the setup looks now...


Left + Right wing servos attached to a Y cable then go into Aileron
Tail Elevator servo connected directly to elevator channel, same with rudder servo.. connected directly.

Now I want to add some flaps on the 5th channel using flap button.. I can mix Flap=>Aile but it act as aileron (one side up and other down)... any way to do that... I do not want to use elevator (on tail) for flaps which is easy to do. Please suggest
Logged
 

Read
« Reply #13 on: November 20, 2010, 06:32:35 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



foamy... did you go today? If not then lets go tomorrow, I need to do a maiden of it.
Logged
 

Read
« Reply #14 on: November 20, 2010, 06:39:49 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



After couple of dry runs and few motor tests (hand held).. I realized that 2C was not giving enough thrust to this motor on 12A ESC. hmmm. the ESC supported both 2 & 3C and so does the motor.. time to upgrade Smiley I changed the battery to 610mah 3C instead of 610mah 2C and what a difference... this thing should be able to do vertical (might not be unlimited but maybe few). The only problem I have this time is that the motor gets little hot (more than warm) after couple of minutes of flying at full throttle.


Ahh... for prop saver, I used a very good alternative.. I had couple of latex balloons ( yeah you guessed it right, the life saver too) and cut the top ring out of it. with 3 folds it is just a snug fit...  you need to make sure that you soak up all the lubricant of it before using as prop saver.


Test video will be up soon, still uploading.
Logged
 

Read
« Reply #15 on: November 20, 2010, 06:51:37 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



One side effect, checked the AUW and it has reached 260gm.. far ahead of my expectations... boo Sad I used too much carbon rods and tape I guess.. but I wont compromise on the strength of this even if I have to upgrade the motor. I will do a test flight with the same motor for now.
Logged
 

Read
« Reply #16 on: November 20, 2010, 07:22:23 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



The video upload is giving me some trouble... will try again in some time.. This is the color scheme that I am planning for it... lemme know if you think its eye catchy... or if you like something else is better then please suggest with link...


PS.: I guess my color skills have not changed since primary schooling.., this design made by me in past 5 minutes Smiley

color plan.jpg
Re: Sukhoi Su-31 - 3D Foamy
* color plan.jpg (23.87 KB, 800x356 - viewed 1429 times.)
Logged
 

Read
« Reply #17 on: November 20, 2010, 10:47:21 PM »
rajathv8
Car Lover
Forum Hero

*****

Reputation Power: 20 
rajathv8 barely matters.rajathv8 barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1802
Join Date: May, 2010



foamy... did you go today? If not then lets go tomorrow, I need to do a maiden of it.

Hey let me know if you guys are going!

Hey the colour will look good but would be nice to not use yellow - just to make your hanger vibrant (all your models have a lot of yellow) Cheesy

(Yellow with black) or (red with black) is a nice combo. Uploading some samples. Just my thought.

a-ne202001a_1.jpg
Re: Sukhoi Su-31 - 3D Foamy
* a-ne202001a_1.jpg (20.31 KB, 500x326 - viewed 1262 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
« Last Edit: November 20, 2010, 11:08:09 PM by rajathv8 » Logged
 

Read
« Reply #18 on: November 21, 2010, 04:51:22 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



The video upload is giving me some trouble...


Can you guys wait for just 12 years for this video upload to finish up? I am sure it will not take much time.. Smiley oh yeah this is advanced video uploading


youtube blunder.jpg
Re: Sukhoi Su-31 - 3D Foamy
* youtube blunder.jpg (35.79 KB, 800x341 - viewed 1179 times.)
Logged
 

Read
« Reply #19 on: November 21, 2010, 09:48:47 AM »
iamahuman
Captain 'no sense of direction'
Forum Administrator
Forum Hero

*****

Reputation Power: 31 
iamahuman is working their way up.iamahuman is working their way up.iamahuman is working their way up.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2864
Join Date: Apr, 2010



What the hell!!!!How is it so slow?With an unlimited connection(read slower than the 2GB plan),I can upload videos quite quickly.
Logged

"Chuck Norris once overcharged a lipo. Thank him for the Sun."

SSC LCG Slash 4x4.
JQ THE eCar.
 

Read
« Reply #20 on: November 21, 2010, 11:23:56 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Here it is now...





This is on 2S, big prop... heat up the motor pretty quick... need to reduce the prop size. but after the size reduction it was not giving enough thrust so upgraded the lipo to 3S...

upgraded video soon
« Last Edit: November 21, 2010, 11:47:11 AM by findvikas » Logged
 

Read
« Reply #21 on: November 21, 2010, 11:46:07 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



What the hell!!!!How is it so slow?With an unlimited connection(read slower than the 2GB plan),I can upload videos quite quickly.

It was some issue with youtube only or maybe FF. Now its working fine... uploading the second test video after upgrade..
Logged
 

Read
« Reply #22 on: November 21, 2010, 12:17:34 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Test # 2 - With 3S lipo.. AUW = 260g, dual rate config for 3d or normal flying.

Logged
 

Read
« Reply #23 on: November 21, 2010, 03:20:22 PM »
foamybuilder
Plane Lover
Forum Hero
*****

Reputation Power: 8 
foamybuilder has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 626
Join Date: Sep, 2010



Test # 2 - With 3S lipo.. AUW = 260g, dual rate config for 3d or normal flying.



I think control throws are too high. Did you do a maiden. Were you able to control it.
Logged
 

Read
« Reply #24 on: November 29, 2010, 11:24:25 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Here is the Maiden flight video and some 3D flying Smiley

Watch in HD if you like.

Logged
 

Read
« Reply #25 on: April 08, 2011, 10:35:24 PM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



I have this model left with me, It had took a bit of damage but I am sure with a good hand it can be repaired and fly again in the sky.

It comes with following electronics

TURNIGY 2204-14T 19g Outrunner - Capable of 240-260gm thrust
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6547

4 x HXT900 9gm Servos
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=662


All the pushrods are installed and its in pretty good condition. You will need to have following
500mah Lipo
12A-15A ESC
Prop
RX & TX

I am willing to give it away and not asking anything for myself. How you get this is in following easy steps:

1) Login to http://www.helpageindia.org/donate.php
2) Make a generous donation of any amount, no reserves here, no need to mention my name for tax benefits.
3) Give me a reciept, send it to findvikas (at) gmail
4) Pickup from my place, Bangalore
5) Simple isn't it.


PS.: I am not endorsing anything here. Just trying to support old age.
Logged
 

Read
« Reply #26 on: April 09, 2011, 05:27:19 AM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



That a nice gesture there, Vikas, Have a happy married life, see you soon back here, after your marriage, from States hopefully. Thumbs Up
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #27 on: April 09, 2011, 05:39:09 AM »
saikat
Plane Lover
Forum Hero
*****

Reputation Power: 14 
saikat has no influence.
Offline Offline

City: Tezpur
State: Tripura
RC Skills: Expert
Posts: 1130
Join Date: Jul, 2009



nice as the gesture sounds ... have you really thought this through ?

What happens when more than one person makes a generous donation ?

will you give it to the person that gave more Huh?

or divide pro rata Huh?
Logged

 

Read
« Reply #28 on: April 09, 2011, 06:33:02 AM »
findvikas
Plane Lover
Forum Veteran

****

Reputation Power: 6 
findvikas has no influence.
Offline Offline

State: Haryana
RC Skills: Intermediate
Posts: 464
Join Date: Oct, 2010



Great cause pay later... Smiley  Please block it before you make a donation... if by mistake any two people does the donation, don't worry I will refund the cash. Smiley

Gusty Sir, Thanks a zillion Smiley
Logged
 

Read
« Reply #29 on: April 09, 2011, 02:00:32 PM »
rajathv8
Car Lover
Forum Hero

*****

Reputation Power: 20 
rajathv8 barely matters.rajathv8 barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1802
Join Date: May, 2010



The plane that took a million crashes bravely but never gave up Smiley
Logged
 

Read
« Reply #30 on: April 09, 2011, 10:11:56 PM »
kiruthi.iaf
Plane Lover
Active Member

**

Reputation Power: 1 
kiruthi.iaf has no influence.
Offline Offline

City: coimbatore
State: Tamil Nadu
RC Skills: Beginner
Posts: 13
Join Date: Jan, 2010



Hats off Vikas.  Salute Salute Salute
Logged
 

Pages: 1 2 [All]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Sukhoi PAK FA - so close so far
Chatter Zone
ujjwaana 6 5208 Last post March 26, 2010, 05:10:06 PM
by flyingboxcar
Sukhoi 37 doing cobra
Chatter Zone
PankajC 14 8944 Last post March 30, 2010, 10:16:43 AM
by anwar
Sukhoi/HAL (FGFA) Sukhoi T-50 PAK-FA
Electric Planes
magarwal1 1 4819 Last post May 30, 2011, 10:59:06 PM
by magarwal1
SUKHOI 37 : Build LOG « 1 2  All »
Electric Planes
Mjet 37 19692 Last post September 03, 2014, 05:30:48 PM
by Mjet
Rocking the NEW E-flite Sukhoi SU-29MM (Gen 2)
Electric Planes
DominicM 0 1917 Last post January 24, 2017, 01:03:16 AM
by DominicM