.40 size Yak 3. Designing and building    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> .40 size Yak 3. Designing and building
Page: [1] 2 3 4 5 6 7 8 9 10   next >   >>  

Tower Hobbies Today's Special Offer! Brands Products
Login
Message << Older Topic   Newer Topic >>
.40 size Yak 3. Designing and building - 1/18/2004 12:11 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Looking at the market of r/c warbirds you can probably notice that russsian WWII fighters are greatly underrepresented (especially the smaller sizes). That is why I started to design my own .40 size Yak-3 last May. Besides designing Yak-3, my friend and I also built CNC machine to cut the parts.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by mihaj -- 3/31/2004 3:55:37 PM >

Hide Signatures
       Post #: 1

RE: .40 size Yak-3. Designing and building - 1/18/2004 12:25 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		The entire design was done in 3D CAD program, then transferred to G-code and cut using our CNC machine.
After long learning curve we managed to design and cut all the parts.
Here is the result:

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by mihaj -- 3/1/2004 7:27:01 PM >

Hide Signatures

(in reply to mihaj)
       Post #: 2

RE: .40 size Yak-3. Designing and building - 1/18/2004 5:47 AM   
Bruiser



Posts: 65
Score: 100
Joined: 8/17/2002
Last Login: 11/17/2006
From: Alamogordo, NM, USA
Status: offline 		So what is the plan for it? Are you going to sell kits or plans of it? What is the actual span, wing area, etc?

-Bob George

Hide Signatures

(in reply to mihaj)
       Post #: 3

RE: .40 size Yak-3. Designing and building - 1/18/2004 6:08 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		We don't know yet. It all depends on the people's interest.
We will post step by step building process and work on the manual at the same time.

The WS is 54" area is 605 sq.in. It has built-in washout. Total weight should be no more then 6 lb.

< Message edited by mihaj -- 3/1/2004 7:27:16 PM >

Hide Signatures

(in reply to Bruiser)
       Post #: 4

RE: .40 size Yak-3. Designing and building - 1/19/2004 12:09 AM   
flying2bill



Posts: 485
Score: 100
Joined: 12/25/2001
Last Login: 2/13/2005
From: Central City, IA, USA
Status: offline 		Not to jump the gun but...... how about a MiG 3 next, I have always thought it to be the sexiest of the russian planes, and then the one in your avatar, I can not pronounce it properly let alone spell it.


_____________________________

Rule of the 3 W's
If it involves Wheels, Wings, or Women, it's bound to be trouble.

Hide Signatures

(in reply to mihaj)
       Post #: 5

RE: .40 size Yak-3. Designing and building - 1/19/2004 12:25 AM   
phread59


 

Posts: 1483
Score: 100
Joined: 7/21/2003
Last Login: 8/22/2009
From: coal township, PA, USA
Status: offline 		all I have to say is Gimmegimmegimmegimme!!!!! I love it, just the ticket. A russian fighter plane in a size most of us could build and fly. I would love to see more 40 and 60 size warbirds. The fields I fly at are just too small to effectivly fly a big 1/4 or so scale plane. And factor in the cost I feel this is a prime market for someone to move into. I would buy a kit or even the plan for a bird like this. Be sure to post progress here. And congratulations looks good. BTW did you get the plans from the Crank Organ guy? I would like to know how did it go? does it work nice? Was it hard to build ect.

Mark Shuman

Hide Signatures

(in reply to flying2bill)
       Post #: 6

RE: .40 size Yak-3. Designing and building - 1/19/2004 12:49 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Mig-3?...... Good idea. What size? As a matter a fact, we do have couple more planes in the works. Mig-3 is on "To Do" list starting today.

For Mark'
CNC is our original design. I apologize for not giving more information about CNC.
Let's stay focused on the airplane project on this thread. Please feel free to PM me with your CNC questions.

Thanks for Your support.
Stay tuned for project process updates.

Hide Signatures

(in reply to phread59)
       Post #: 7

RE: .40 size Yak-3. Designing and building - 1/19/2004 7:16 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Vertical and horizontal Stab.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by mihaj -- 1/19/2004 4:17:53 AM >

Hide Signatures

(in reply to mihaj)
       Post #: 8

RE: .40 size Yak-3. Designing and building - 1/19/2004 7:24 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Fuselage assembly.
1.Main Fuse former consists of four interlocking pieces.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 9

RE: .40 size Yak-3. Designing and building - 1/19/2004 7:38 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		2. Upper formers installed

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 10

RE: .40 size Yak-3. Designing and building - 1/19/2004 7:52 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		3. Bass side stringers glued in place. Doublers installed on cockpit formers F2 and F3.
Top balsa stringer glued in.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 11

RE: .40 size Yak-3. Designing and building - 1/20/2004 2:19 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		4. Bottom Fuse formers installation.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by mihaj -- 1/19/2004 11:25:05 PM >

Hide Signatures

(in reply to mihaj)
       Post #: 12

RE: .40 size Yak-3. Designing and building - 1/20/2004 2:31 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		5. Wing mounting plate glued together.
Fuse side formers installed.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 13

RE: .40 size Yak-3. Designing and building - 1/21/2004 2:25 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		6. Tail block goes in place
Bottom stringers glued in.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 14

RE: .40 size Yak-3. Designing and building - 1/21/2004 3:39 AM   
LA7flier



Posts: 437
Score: 100
Joined: 10/19/2002
Last Login: 2/3/2012
From: pleasanton, CA,
Status: offline
quote:

ORIGINAL: flying2bill

Not to jump the gun but...... how about a MiG 3 next, I have always thought it to be the sexiest of the russian planes, and then the one in your avatar, I can not pronounce it properly let alone spell it.

That would be the I-16 "Rata" or Rat made by the Polikarpov Design Bureau...Polikarpov also produced one of the best twin bombers of WWII...the PE-2...faster than the lend-lease Hurricanes the Russians flew.

Hide Signatures

(in reply to flying2bill)
       Post #: 15

RE: .40 size Yak-3. Designing and building - 1/21/2004 3:58 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		You are right about I-16. Sorry, but Pe-2 was designed by Petlyakov.
They are on my todo list as well.

Cheers

Hide Signatures

(in reply to LA7flier)
       Post #: 16

RE: .40 size Yak-3. Designing and building - 1/21/2004 6:19 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Back to building.
7. Firewall and motor mounts glued together.

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 17

RE: .40 size Yak-3. Designing and building - 1/21/2004 6:21 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		8. Tail wheel support plate glued in place

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 18

RE: .40 size Yak-3. Designing and building - 1/21/2004 6:43 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		9. Firewall and motor mount epoxied.
There is a build in 2° Right and 3° Down Thrust

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 19

RE: .40 size Yak-3. Designing and building - 1/21/2004 7:46 AM   
Shrky



Posts: 150
Score: 100
Joined: 9/22/2003
Last Login: 5/25/2011
From: Vancouver, WA, USA
Status: offline 		mihaj,

Looks really good so far. If I can offer some suggestions however. First with the horizontal and vertical stabilizers being solid sheet it looks like the tail feathers are going to be pretty heavy. You may want to look at making more lightining holes in them. Second, it seems as you plan to sheet the turtle back portion of the fuse. If so I think your going to want to add another stringer on each side between the top stringer and the main longeron to support the sheeting. Other than that it's looking good so far. Can't wait to see the rest.

Good Luck,
Scott

_____________________________

Never run out of airspeed, altitude and ideas all at the same time.

Hide Signatures

(in reply to mihaj)
       Post #: 20

RE: .40 size Yak-3. Designing and building - 1/21/2004 5:48 PM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Hi Scott,
We appreciate your attention and advice. We agree that the tail fathers look too heavy. But you'll be surprised how light they are especially after they shaped-up. We are using .25" balsa that typically light.
Regarding the turtle back. The distance between formers is pretty short (keep in mind it's a .40 sizer) and ones you apply the sheeting it creates a stressed surface which is rigid enough for this size of model.
Here is our first prototype that worked pretty well.

Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by mihaj -- 1/21/2004 10:11:20 PM >

Hide Signatures

(in reply to Shrky)
       Post #: 21

RE: .40 size Yak-3. Designing and building - 1/22/2004 5:50 AM   
flying2bill



Posts: 485
Score: 100
Joined: 12/25/2001
Last Login: 2/13/2005
From: Central City, IA, USA
Status: offline 		thanks for reminding me of the name, how do you properly pronounce Polikarpov?
I once did a MiG3 that I blew up from Gus Morfis 1/12 scale plans to a .25 size and have had the plans blown up to .40 size for some time but never took the time to work out landing gear issues. I used balsa sheeted foam wing, very strong, in cartwheel incident only broke tip of wing, destroyed fuse.


_____________________________

Rule of the 3 W's
If it involves Wheels, Wings, or Women, it's bound to be trouble.

Hide Signatures

(in reply to LA7flier)
       Post #: 22

RE: .40 size Yak-3. Designing and building - 1/22/2004 6:09 AM   
Shrky



Posts: 150
Score: 100
Joined: 9/22/2003
Last Login: 5/25/2011
From: Vancouver, WA, USA
Status: offline 		mihaj,

Ok well if it worked out ok on the prototype I guess you don't need the extra stringer. My thoughts that because it's a 40 size that the turtle back would probably be sheeted with 1/16 sheeting. I could just see myself sticking a finger through the sheeting in the unsupported area. Anyway hope to see this available soon. I'd grab one up in a second.

Good Luck,
Scott

_____________________________

Never run out of airspeed, altitude and ideas all at the same time.

Hide Signatures

(in reply to mihaj)
       Post #: 23

RE: .40 size Yak-3. Designing and building - 1/22/2004 8:32 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		Hi Scott,
I see where you coming from. And I totally agree with you. The plane is sheeted with 1/16 balsa. I think that any model plane should be handled with care.
But good thing is, the first prototype came out at only 5lb.(fixed gear though) It was our main goal to make the airframe as light as possible.
Pretty soon our first prototype is going to be converted to electric.

Thanks for sticking with us.
Any concerns or design ideas are appreciated.

Mike & George

Hide Signatures

(in reply to Shrky)
       Post #: 24

RE: .40 size Yak-3. Designing and building - 1/27/2004 2:00 AM   
mihaj



Posts: 336
Score: 100
Joined: 1/16/2003
Last Login: 3/14/2008
From: Baltimore, MD, USA
Status: offline 		We are back.

10. Wing pin doubler installed.

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to mihaj)
       Post #: 25

Page:   [1] 2 3 4 5 6 7 8 9 10   next >   >>  
All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> .40 size Yak 3. Designing and building
Page: [1] 2 3 4 5 6 7 8 9 10   next >   >>  




Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2012.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


7.797RCU1