RC India
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: February 26, 2012, 06:57:14 PM »
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




Watch out this space for Build and Fly Log of Su-47 Berkut. here is the video of the real Berkut

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 #1 on: February 26, 2012, 07:02:22 PM »
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



Full plans here (Including A4 Tiled, decals etc)
http://www.parkjets.com/storage/SU-47%20BERKUT.zip
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 #2 on: February 26, 2012, 07:30:16 PM »
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



Few points to keep in mind are

(a) will require cross covering cf 1x3mm strip from tip to root (See image), or else yo will end up like this (http://www.rcindia.org/rc-general-topics/basic-aerodynamics-for-rc-flying/msg90970/#msg90970)

(b) CG could lie outside the wing this one is a perfect example of that, you will see in the flying videos, when she bunts slowly, she will kinda nose down and float up, where should the CG be ? see image

(c) contrary to common belief , swept forward wings for the same span, control area and throw, rolls shade slowly, so ? elevon throw has to be more, if you are connecting it to the same servo but at different servo holes then choose the upper one for the Ailevons and lower for the tailerons. opposite of what is shown in the image

(d) Fuselage lift constitutes > 60% of the total lift, it is imperative that you cut and stick as per plan, in the plan you will notice the nose is drooping down, this is to allow the fuselage to act like an aerofoil and the lift to get generated

(e) fin is small that is because the spanwise flow in the swept forward wing comes inwards and discharges at the wing root, this will allow fin to be in the airflow zone all the time, high alpha directional stability should be good, will report this after the flight report

(f) Placed well, this is a one sheet aeroplane (like the MiG 29 ) see image for my layout

PS
anybody building along ?

Berkut.jpg
Re: Su-47 Berkut:- Tomhe Plans;- Build and Fly Log
* Berkut.jpg (41.83 KB, 725x800 - viewed 1116 times.)
This post has 2 more images(s)/attachment(s). Please login or register to view them.
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 #3 on: May 28, 2012, 11:10:48 PM »
vikalp11
explorer
Plane Lover
Senior Member

***

Reputation Power: 2 
vikalp11 has no influence.
Offline Offline

City: mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 137
Join Date: Jun, 2011

Jai Hind



Hello Sir,
Has the build gone any further?
Would like to see this .....interesting craft!
Logged
 

Read
« Reply #4 on: May 29, 2012, 12:13:12 AM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



Sir.. its an awesome build.. Hats Off Hats Off Hats Off
Logged

Phoenix.........
 

Read
« Reply #5 on: May 29, 2012, 05:51:14 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



she flew extremely docile owing to very small elevator surface so changed it to a bigger one, wasn't happy at all with the performance i look for >Cheesy, therefore will build another one. will upload video soon
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 #6 on: May 29, 2012, 04:15:04 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



 Salute Salute Salute
Logged

Phoenix.........
 

Read
« Reply #7 on: May 29, 2012, 08:45:47 PM »
vikalp11
explorer
Plane Lover
Senior Member

***

Reputation Power: 2 
vikalp11 has no influence.
Offline Offline

City: mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 137
Join Date: Jun, 2011

Jai Hind



ok sir
Logged
 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Tomhe design F18 Hornet « 1 2  All »
Electric Planes
VC 34 23907 Last post August 10, 2010, 03:15:05 PM
by controlflyer
FA-18 Super Hornet tomhe plans
Electric Planes
rcpilotacro 14 10040 Last post November 17, 2011, 03:04:13 PM
by rcpilotacro
Su-37 Super Flanker:- Tomhe Plans
Self-designed, DIY and College Projects
rcpilotacro 9 7445 Last post February 16, 2012, 11:47:35 AM
by ashJR7202
MIG 29 Tomhe Build Log! Happy Bday RCIndia
Electric Planes
VMaliakal 15 10789 Last post August 06, 2015, 12:40:21 AM
by vishalonline
scratch build plans
Beginners Zone
bhoditha 1 4412 Last post April 09, 2015, 04:14:41 PM
by K K Iyer