92" Ziroli P-47 Thunderbolt

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• cvanscho
• milquetoast
• Toucan
• Andy_B

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[selleri]

As some of you may know I've been gearing up to build a 92" Thunderbolt based on Ziroli plans for the last couple of years.
I guess I better get started seeing that Shane has his Gannet well under way 

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Fibretech

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I'm sure there will be one or two more suppliers down the road 

Wingspan 232 cm(92"), about 53 cm(21") wide at the wing root.


The fuselage is not much shorter.


CJM retract, not decided on set of wheels yet.


Local tradition 


Laser Lizard short kit.


Only "problem", if it can be called that, is that the parts literally fall out of the frame.


Control horn for one of the flaps. There you can also see the small pieces that connect the parts to the frame.


Few ribs.

[snap-roll]

Looks like pure fun   I think a bit of wight saving drilling seems to be on the agenda  Gotten any Forster drill bits yet, have you

  Johan

[selleri]

Nobe, but I'm going to look for them this week. 

[imagedktr]

Nice one Sverrir 
The laser cut parts look great mate 

[stearman]

Nobe, but I'm going to look for them this week. 

B&Q have drills suitable for holes in thin material, see my Mitchell build thread in Scale Models,
Stearman

[Tiger]

B&Q have drills suitable for holes in tin material, see my Mitchell build thread in Scale Models

Sverrir,

Do you have B&Q.................. up in the frozen North?.............    

Great to see, that you've got what you've been waiting for, for soooooooooooo loooooooooooooooooong.

Some interesting wall paper in your building room...........    

Tally Hooooooooooooooooooooooooooooooooooooooo

Andy

[imagedktr]

I must say though Sverrir , Your appearance has changed a lot since Cosford ! 

[selleri]

I think the price of an airline ticket over to the UK would up the price a little bit       I live in Iceland btw
I've been watching your B25 thread, nice model, might be a built one in my future, got a You are not allowed to view links.
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YT B25

brewing.

The Stearman pic is from an old Würth calender, not sure about the scuba ones. The building room is at my mates place.

Must be the new cowling... though I still haven't perfected the ancient art of self filming   

[CF-FZG]

Local tradition 
<Quoted Image Removed>

I thought we all tried them on for size   well I did with the Avenger cowl 

Looking forward to this build Sverrir 


Mark.

[snap-roll]

Hey Sverrir! When you get out of the bucket to get drill bits... Buy the expensive ones if there's a choice...

They are a bitch to sharpen up if of inferior quality and over heated..

  Johan

[selleri]

lol, how did you know I was waiting for payday 

Some of the reading material I've acquired, from various sources, including this forum(thanks guys)   

[selleri]

Well I guess there is no use in postponing this any longer, I decided to begin on the horizontal tail as it seemed to be of a suitable proportions.
I'm still short of some wood but hopefully it should arrive soon.

Here I've found the parts from my box. Not much problem getting them out, just a little shake and they just fall out, don't you just love lasercutting.


And hopefully they'll end up close to this arrangement.


I began by putting up the tabbed ribs and support them with some balsa.
This helps when it comes time to locate the rib in relations to the trailing edge, then it can be fastened.


Here the trailing edge has been applied and next up is the leading edge.


Then we put in our spare ribs 


And here we are now 


The ribs for the elevator where not in the package so I'll need to do some cutting soon.

[snap-roll]

Hi Sverrir,
No need to do any serious cutting for the elevator ribs just use a piece of suitable stock balsa ex. 25x3mm and just chop 'em down to the right length, glue in and use a long "bar sander" to shape the profile of the whole elevator in one go.

  Johan

[selleri]

I like your style young one   

[selleri]

Small steps 

[selleri]

Next step was to trim the wing ends.


Then the fun started, time to begin on the elevator's trailing edge.


Then it was a matter of aligning it to the center of the leading edge.


Now it was time to get busy and start scratch building, I needed 10 ribs for the elevators because they where not included in
the short kit. Reason being that they are not shown on the cut list on the plans.
To simplify matters I made all the ribs the size of the largest one and then trimmed them depending on where they went.


And here this is starting to resemble a structure that we can use to fly 




Next I'll sheet the tail so I better end this session by gluing together two balsa planks for the sheeting.

[selleri]

Not time for the sheeting yet   

Next step was going over the whole stabiliser with some sandpaper, the elevators are glued on with a few CA drops.
One unexpected benefit of the lasercut is that you clearly see what areas you've gone over with the sandpaper.
I've also added some balsa where the trim tabs are.


And here I was considering putting some hinges, red + marks the spot, any comments regarding placement or number of hinges?
The black lines at the top are where the full size hinges are

[rcfanuk]

Hinge positions look ok, I would put more balsa infill blocks at the hinge positions to give them more gluing area.

Steve

[Tiger]

Just as Steve has written.............    

I would also move the two outer ones closer to the ribs...........

What design are we looking at here? Rounded L/E to the elevator and Pro-skin shrouds top and bottom?

Tally Hoooooooooooooooooo

Andy

[selleri]

Yes, balsa blocks will be added   

I would also move the two outer ones closer to the ribs...........

To tie them better into the frame?

What design are we looking at here? Rounded L/E to the elevator and Pro-skin shrouds top and bottom?

That sounds about right but I've still got to go over that part in my docs.

[p51p47]

I have 3 Robarts on the elevs on my P-47 (ZG38)..................if this is ZG62 or bigger powered, I'd personally add in a 4th hinge...............space equally between root & tip.

Phil

[selleri]

Z62 it is.

[p51p47]

I'd fit 4 then..............I've seen Robarts break when 3 have been fitted on models smaller than this...........

[selleri]

Ouch