RE: TF GS P47 Build - yeah another bloody one!!  
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RE: TF GS P47 Build - yeah another bloody one!! - 3/19/2005 9:24:50 PM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		John,

the filler that I use for doing sheeting prior to glassing is a lightweight mirror finish spackle that is ready mixed. Made by Selleys, now you probably do not get Selley's products over there but any hardware store will have ready to use lightweight mirror finish fillers.

I have used top coat filler that is used for going over the seams in plaster wall sheets but it does not have enough body.

Once I have glassed I then use an automotive filler , forget the name but it is normally a reddish colour. It sands well, has good adhesion and you apply it with a piece of stiff card. I use it mainly for raised access hatches, overlapping panels etc. Lay down a piece of tape then spread this stuff out feathering it as you go outboard. Then sand down ot the tape. Leave a nice raised panel of a realistic thickness.

No idea on Ultra coat as I have never used the stuff. Is that a glass resin or is it a paint? For resin I use aircraft grade araldite, 50:50 thinned to a water consitency with metho. Paint waise I just use automotive acrylic laquer mixed from paint samples by a panel beating shop I know of.

Ahh engines, here's a can of worms. ZDZ60 should be great I would think. The Fuji I'm not sure of. I have heard a few things to the negative on these engines. do some research and ask people who have them is best.

For my money Zenoah is way to go. G-62, simple, sturdy and parts a planety and the price is reasonable. You can get electronic ignitions as well from after maket suppliers. Really smooths them out.

cheers
Peter

(in reply to jr6596)
       Post #: 201

RE: TF GS P47 Build - yeah another bloody one!! - 3/23/2005 9:38:38 PM   
Rob C



Posts: 329
Joined: 3/21/2005
From: Winnipeg, MB, CANADA
Status: offline 		Canuck1
I just stumbled onto this thread a few days ago. The TF gs P47 is my next project, having just ordered the kit and the tail wheel retract (Robart). I see you are using the Robart gear for the mains, just looking at your wing. I am getting some good ideas off this form and maybe can bypass some of the mistakes others run into. I really like the looks of your project so far. oh yea I'm from Winnipeg.
Rob C.

(in reply to Peter_OZ)
       Post #: 202

RE: TF GS P47 Build - yeah another bloody one!! - 3/28/2005 12:09:47 AM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		Guys,
been doing some building on the RHS wing panel. As from my earlier posts my plan has been to build this as per normal then modify for sub spars and scale gear location.

Aft sub spars are now in with one of the play braces epoxied in place. Very straight forward. Only thing to note is to ensure you put packing under the ribs prior to cutting for the subspar, also when fitting the bottom spar it needs to be packed up to keep it flush with the bottom of the ribs.

I need to now get the calipers out and do a series of measurements so that I can get the correct dimensions for the dihedral brace to be fitted in this aft subspar. Once that is done I'll measure and cut for the other ply brace then epoxy it in.

From there it is the same procedure for the front subspar.

You will note in the pics the red vertical marks on the ribs, this is the guide marks for the wheel well that has to be cut out. I won't have to remore the top of the main spar of indeed the tops of the ribs in the well area, I'll be able to lay a well floor over what is left of the ribs in this area.
Not sure of the exact depth till I get my 6" main wheels.

Anyway it is progressing very smoothly. If you can build the main spar as per the destructions ok then you will have no problems doing the subspars as it is exactly the same procedure.

All up the extra weight is not going to be a lot, should be well under a 1lb and the wing be very strong.

2nd photo shows the cut marks being drawn on rib 1 - very easy. Take a perpendicular line off the marks you drew on the plans then extend the vertical line up the ribs.

cheers
Peter

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       Post #: 203

RE: TF GS P47 Build - yeah another bloody one!! - 3/28/2005 9:36:53 AM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		Bit more progress today.

Ribs have been cut out for the fwd subspar. Pics detail this. Bit fiddly and time consuming this front one but straight forward enough if you are patient.

I'll cut out the play braces tomorrow then epoxy to the subspars themselves. Then the ribs are glued to the ply braces.

then that wonderful task of sanding the new subspar top sections to conform to the wing airfoil shape .

May even start on the wing sheeting tomorrow too - will see.

Once the top is sheeted I'll flip it over and start cutting out the wheel well, false well floors, walls and the mounts for the retracts - fun fun fun!

Anyway din dins is ready.

cheers
Peter


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       Post #: 204

RE: TF GS P47 Build - yeah another bloody one!! - 3/28/2005 9:02:18 PM   
john pickford


 

Posts: 7
Joined: 7/3/2003
From: Auckland New Zealand, NEW ZEALAND
Status: offline 		have just more or less finished a Brian Taylor P47 D razorback (modified to a bubble top) and finished it in the colors of M X -E as stationed at Duxford,when I learn to drive this B---- computer properly I'll post a photo . As for the color ,it is a shade of grey,as one of my buddy's has been to Duxford and viewed the beast . My model is 77" has unitract retracts, a Super Tigre 23 for power, and weighs 19Lb . To balance I have fitted on board glow as the battery helps with the C/G along with some lead.

(in reply to Peter_OZ)
       Post #: 205

RE: TF GS P47 Build - yeah another bloody one!! - 3/28/2005 9:37:57 PM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		sounds nice, I'm not familiar with MX-E but have a few shots of MX-X from when I went to Duxford last year.

cheers
Peter

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       Post #: 206

RE: TF GS P47 Build - yeah another bloody one!! - 4/2/2005 3:58:02 PM   
Canuck1



Posts: 1046
Joined: 7/1/2002
From: Edmonton, AB,
Status: offline 		Finally I have got back to working on the P-47. Wings are now fully sheeted, including Flaps and Ailerons. I will be taking my time with this plane, as I am not planning on flying it this year.

Craig.

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_____________________________

Eat, Sleep, Fly

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       Post #: 207

RE: TF GS P47 Build - yeah another bloody one!! - 4/3/2005 9:30:28 AM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		Gday Craig,
looks like you are making good progress there mate. whish my wings were all sheets and the other bits done.

I've fainlly got all the subspars in today, just waiting on epoxy to cure on the last ply brace then have to sand all of that to conform to the curve of the wing. Next will be sheeting then flip it all over so I can tackle the gear mounts.

What I think I will do is to use the mounting positions as shown on the plans and the ribs as a guide to get angles right then I will extend those out and crank to the correct angle.

Couple of pics attached first shows the subspars in and the fwd one clamped while the ply brace cures.

Second one shows one of my blown up subspars - sure will make detailing layout easy.

Well roast beef for din dins - roast taties and smothered in gravy yummmmo!!

I'm off

cyas later
Peter

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       Post #: 208

RE: TF GS P47 Build - yeah another bloody one!! - 4/9/2005 10:17:56 AM   
Peter_OZ



Posts: 4357
Joined: 6/5/2002
From: Brisbane, , AUSTRALIA
Status: online 		slow progress of late - too much time on ebay

have butt jointed all 8 sets of wing sheets as per the destructions and they are currently drying under the weight of some pavers.

Here is a tip I used if you are pressed for room.

Lay down some glad wrap plastic lunch wrap on your table then lay one of the completed skins on top, another layer of glad wrap then put the next completed skin etc etc. Lastly put a final layer of glad wrap then weight it all down with heavy weights - I used pavers, 4 on each pile.

Well flying tomorrow weather permitting, it been bucketing down here last few days, bloody cane toads will be breeding up so I might get some golf practice in

Will sand the ribs and ply b racing tomorrow and maybe even sheet the wing half.

cheers
Peter

(in reply to Peter_OZ)
       Post #: 209

RE: TF GS P47 Build - yeah another bloody one!! - 4/9/2005 4:16:47 PM   
aps f4u



Posts: 209
Joined: 1/15/2004
From: Centerville, IA, USA
Status: offline 		Hi all, Today I have finaly come to the part of painting my GS Jug. It has been a long winter and and a couple hundred hours put in to this Jug, but it was all worth it.

I am getting realy excited to fly this bird and hope to achive first flight in the next couple of weeks. I hope every thing I have heard about the flight characteristics and beeing and all around good flyer are true. This is my first giant scale war bird build, so I don't know what to really expect, but I am soon to find out!

I'll post some pic's of the P-47 after I have painted it. Good luck to all who are building the P-47 and for the ones who have posted pic's of there P-47's, they are looking great!

a

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       Post #: 210

RE: TF GS P47 Build - yeah another bloody one!! - 4/9/2005 5:39:40 PM   
Kirk RC


 

Posts: 267
Joined: 4/14/2003
From: Salt lake, UT, USA
Status: offline 		Hello Guys,
Been reading everyones posts lately. Just this week I flew my GS P-47 for the first time. It flew great with just two clicks of left ail. trim but needed all the down trim I could give it. I balanced slightly nose heavy but when you poor on the coals that ZDZ 80 just climbs!! Most of the time I was at 1/3 throttle and with that big 26x10 prop the fan diameter looks so scale. I was originaly concerned that I would have too much down line braking but not an issue at all. As I may of stated a while back this one is monocoat and done up as Tar Heal Hal. This is the first time I have done such a "striking" color layout on a warbird and it really stands out in the sky. Denny at Cajun RC did my graphics and they came out great. Aps- this is my first GS warbird as well and it flys most of the envelope more easily than the 1/7 stuff. No pitch change at all with flaps and gear down, it just plows through the sky like the real one. Also much less right rudder was needed on take off then I expected. One thing you may want to consider is give yourself more elevator throw on high rate then what TF recommends or if your radio allows triple rates. On my last landing I almost ran out of elev. fed in more power to compensate as we all know thats SOP but IMO you need more pitch control. I had already upped the throw 2/16 above the high rate recommended and will dial in 2/16 more. At the stated elev rates I wouldnt loop this bird without a bunch of alt. The real ones flight envelope for a loop was similar. Yours may be different and I know my balance pt, power set up, fuel weight etc maybe to blame, just a heads up. My flying buddy took 35 pics so I will get some posted when I put them in Digital formatt (scanner is on the fritz). All in all a great flyer with do bad habits that I could find. I just picked up the 1/5 scale TF P-51B on E-bay!!! Not something you see at the field often and been out of production awhile.

Cheers,
Kirk

(in reply to aps f4u)
       Post #: 211

RE: TF GS P47 Build - yeah another bloody one!! - 4/10/2005 1:44:18 AM   
Edwin


 

Posts: 3201
Joined: 2/8/2002
From: Leander, TX, USA
Status: offline 		Just got the leading edge sheeted on the right panel this evening. The left panel is framed and top sheeted. I will temporarily join the wing halves to install the spring air mounts to get it right.
Been a long day today. Spent 9 hours running a transmitter impound at our clubs first heli-rally. A little over 50 pilots. Pretty good showing.
Edwin

(in reply to Kirk RC)