Yellow P47 Build up  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> Yellow P47 Build up
Page: [1] 2 3 4 5 6 7 8 9 10   next >   >>  

Login
Message << Older Topic   Newer Topic >>
Yellow P47 Build up - 10/9/2004 3:28:47 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi

Just started the build up and have a question, I'll also post the build here for others to see as I go along.

I've finished gluing and shaping the horizontal stabiliser and fitted the elevator. I had problems deciding how to shape the end cap, but got there in the end.

Instructions state 5/8" up and down for the elevator but this is barely reachable with my current configuration.

Could you take a look and let me know what I've done wrong with the end cap shaping, I can't get my head round it.

Thanks

Lee

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
       Post #: 1

RE: Yellow P47 Build up - 10/9/2004 4:05:10 PM   
juvatwad



Posts: 196
Joined: 5/18/2003
From: El Paso, TX, USA
Status: offline 		The stab end cap fairing at the trailing edge will hold up the elevator. You have to cheat in that area and cut it back some. It won't be too obvious when everything is painted.

(in reply to heliraptor)
       Post #: 2

RE: Yellow P47 Build up - 10/9/2004 4:44:01 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi

Any chance of a picture of yours quite close in so I can see where / how much you cut it back ??

Lee

(in reply to juvatwad)
       Post #: 3

RE: Yellow P47 Build up - 10/9/2004 6:36:36 PM   
badger41


 

Posts: 222
Joined: 12/30/2001
From: marshall, WI, USA
Status: offline 		the problem is that at this time according to the far right picture is that the hinge line is forward of the elevator.
look on the drawings and you will see a short line drawn thru where the hinge is . that is where the hinge pivot should be.
the full size a/c has the hingeline/pivot line equal to the tip of the elevator, that is the curved tip, and extends all the way to the elevator horn.
this also means that the Robart hinges need to be set deeper in to the elevator.
I have built four of these Y/A P-47's. Two with G-62's and G-38's Both engines do a good job and seem to as fast as each other. the 62's get off the ground quicker .

tom

(in reply to heliraptor)
       Post #: 4

RE: Yellow P47 Build up - 10/9/2004 6:52:49 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi Tom

That pic was just to show the inside of the end cap. The hinges are still loose, and when I pulled it out thats where it sat.

I have got the hinges bedded in to the elevator slightly, and notched for clearance, as juvatwad said, the limiting factor is the end cap where it touches the elevator restricting movement, not sure how to relieve it.

Any shots of your elevator setup?

Cheers

Lee

(in reply to badger41)
       Post #: 5

RE: Yellow P47 Build up - 10/9/2004 9:21:25 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi

Bit more done, all cover strips are on, final shaping to the end caps has revealed a little more travel. I noticed some small holes in the ends of the inner foam section so used small carbon rods to help align the two surfaces up.

All done less the glassing.

Tomorrow comes the wings !!

Lee

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

(in reply to heliraptor)
       Post #: 6

RE: Yellow P47 Build up - 10/9/2004 11:38:48 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi

Just reading up on the wings in preperation.

Step 69 in the instructions mentions gluing a piece of 1/64 scrap ply to the wing tip before gluing on the fibreglass end cap. I haven't seen this before, is it the usual method ?

Lee

(in reply to heliraptor)
       Post #: 7

RE: Yellow P47 Build up - 10/10/2004 3:44:12 AM   
juvatwad



Posts: 196
Joined: 5/18/2003
From: El Paso, TX, USA
Status: offline 		I don't have a picture of my stab, but the part I cut back is far out on the tip of the stab where it begins to curve rearward. There is still a bit of a lip on mine, but it's less than that on yours. I used the plywood scrap, because a fiberglass to wood bond is better than a fiberglass to foam bond.

(in reply to heliraptor)
       Post #: 8

RE: Yellow P47 Build up - 10/10/2004 3:45:59 AM   
mbuck515


 

Posts: 94
Joined: 11/9/2003
From: marlboro, MA,
Status: offline 		yes its so you have more surface area for the glue to adhear to, and so theres more of a hard surface for the tip to glu to instead of the soft foam.

mitch

(in reply to heliraptor)
       Post #: 9

RE: Yellow P47 Build up - 10/10/2004 1:19:56 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Cheers guys

Finished off the elevator earlier today. I'd forgotten about the metal horn.

Started on the wings now, currently gluing up the trailing edges of both flaps and ailerons, just about to trace and cut out the ply tip plate.

Cheers

Lee

Attachments
Click to see fullsize image.
Click for fullsize

(in reply to mbuck515)
       Post #: 10

RE: Yellow P47 Build up - 10/10/2004 2:15:34 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Hi

Again, reading ahead. The method suggested for mounting the aileron servos, bearing in mind YA recommend a real strong servo on the aileron, how is the mounting method holding up, i.e to the cover held in with 4 small screws. Maybe me, but this sounds a little weak.

Has anyone mounted the servo to the floor of the servo well??

If you have, any construction tips or pics would be very helpful.

Lee

< Message edited by heliraptor -- 10/10/2004 3:25:39 PM >

(in reply to heliraptor)
       Post #: 11

RE: Yellow P47 Build up - 10/10/2004 2:34:33 PM   
heliraptor


 

Posts: 336
Joined: 8/4/2002
From: Colchester, Essex, UK,
Status: offline 		Anybody have a part number / supplier for the 1/2A Horn used on the rudder in the concealed setup??

Cheers

Lee

(in reply to heliraptor)
       Post #: 12

RE: Yellow P47 Build up - 10/10/2004 5:06:27 PM   
juvatwad



Posts: 196
Joined: 5/18/2003
From: El Paso, TX, USA
Status: offline 		I don't recommend mounting the aileron servo to the hatch cover. This is one of the possible sources of flutter/wing failure cited with this particular model. I used BVM wing servo mounts and mounted the servos to the floor of the servo well. http://www.bvmjets.com/Accessories/carbon.htm

I also did not use the conceled rudder horn, but instead set up a standard pull-pull system.

(in reply to heliraptor)
       Post #: 13

RE: Yellow P47 Build up - 10/11/2004 2:47:17 AM   
mbuck515


 

Posts: 94
Joined: 11/9/2003
From: marlboro, MA,
Status: offline 		you can mount the servos in either place, they are both strong enough, i have 2 P-47s and one has the servo mounted on the hatch and the other is glued in the wing and i havent had any problem with either of them. on the 1/2a horns i got mine from dubro if i remember corectly, but i cant remember the part number. which version do you have (bubble or razor)? motor? posible color scheme?

Mitch

(in reply to juvatwad)
       Post #: 14

RE: Yellow P47 Build up - 10/11/2004 3:50:09 AM  &nbs