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Ziroli F6F Hellcat Builder's Diary

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Old 06-16-2011, 02:04 PM
  #601
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We can see that global crises did not affect you.
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Old 06-16-2011, 04:46 PM
  #602
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As you can see there is no crisis in my modeling Combine...
Joking aside, two of the three hellcat are from my friend Dule. He bought from me, a few years ago, a Hellcat kit with plastic fuselage, which I bring from Top Gun at 2008, and last year and my model that I flew and described in this topic.

Now I made my second Ziroli's Hellcat (that all wooden kit), and this time I try to avoid all errors I made on my first Hellcat model.
I did not write about all the details so I made another kit, I'll just say that I am very mindful of the weight, which was a problem in the first Hellcat.

For the new Hellcat, I intended Zenoah GT 80, with the scale exhausts.

Scale exhaust system I was making my friend Sasa from *abac.



On the water jet machine, I cut the exhaust flange and from the German firm Krumscheida I reached the pipes.



My idea is to create a semi open exhaust, which will be located in the same place on the fuselage, as it was on the right Hellcat.

Here is a few photos of the exhaust system...













Than same job on the right side...



After that we made a hole on the scale exhaust...



...fine tuning...



...and weld pipe on it...



Same procedure on the other side...



...and here is a result...





On those photos fuselage is up side down, so we made little holes and weld thin pipes for draining exhaust oil...









Finally, we add teflon tube which are connect parts of the exhaust system...









How will this exhaust work, we'll see...

Regards

Mirce
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Old 06-30-2011, 09:41 AM
  #603
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Default RE: Ziroli F6F Hellcat Builder's Diary

Some more photos of the working on Hellcat...

In the meantime I add glass coat and filler on fuselage and wing. After that I start with details...

Between center panel and wing tips was a little gap, so I made stripes from thin aluminum (0,3 mm) and glued it on the wing tips...










On ailerons I add trimmers...






Than I start working on panel lines...
On my cutter I made 1,2 mm wide stripes...



...and put it on model...














Than I start working on tail details. When I was made my first model, I cover tail surface with Oratex, add details, and paimt it. But, after some time in few places Oratex was separated.







So, on this Hellcat, I put 0,8 mm balsa plate instead of Oratex, and want to made details from filler...
Control surfaces are stronger also...

First I put lines on which I add little, 2 mm, circles and other little details...





I used photos from original airplanes, and try to made details...















Now I masking areas which must stay lower, and than I will add filler...






On cowl, I made shifting flaps, from 0,3 mm aluminum plate. Servo is on the top of the cowl...










My friend Dule work on his Hellcat also, and he put glas, epoxy resin and filler on wooden parts of his plastic fuselage...







His wing tips are ready for panel lines...



...and fuselage will be in next few days...




Best Regards

Mirce
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Old 06-30-2011, 12:15 PM
  #604
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Default RE: Ziroli F6F Hellcat Builder's Diary

wonderfull Mirce, I think you are the king of mufflers

Amaizing job.
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Old 07-02-2011, 12:46 PM
  #605
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Default RE: Ziroli F6F Hellcat Builder's Diary

Thanks Antonio...

I add filler on tail surface so it now look like this...



I putt, with pencil, lines for rivets and start adding details on lower side of the wing...









More about this Hellcat project you can see on:

http://rcfly4um.org/index.php?topic=4909.0

Regards

Mirce
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Old 07-07-2011, 06:08 PM
  #606
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Default RE: Ziroli F6F Hellcat Builder's Diary

amazing job Mirce, what is the material you use on your circles, rivets, doors and hatches. Please keep the pics coming, you are helping on my hellcat build, thank you.
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Old 07-17-2011, 05:30 PM
  #607
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Default RE: Ziroli F6F Hellcat Builder's Diary

Aaron, thanks...

For circles, rivets, doors and hatches I use Oracal 641 silver self adhesive tape. I have Roland cutter and made all that details myself in my work shop.







For little circles, screws... I use one layer of Oracal foil, but for doors and Hatches I use two layers.
For cutting little details you must have cutter knife with sharper top, and pressure on Roland cutter is 70 gr.
For two layers foil I use normal cutter knife and bigger pressure, 180 gr. But, that is not enough, so you need to cut all doors or other parts 4-5 times. Cutter always cut at same line...

This are knifes for cutter...





Upper is for little parts...

I use Corel program for drawing details...
















For detail source I use very good draw from Hellcat plastic model, one very good plastic model, photos from Hečllcat in Air and Space Museum...




I am not finish with work on details on my model, but here is some photos...


Wing...





















Some details on wing on plastic model...



...and on my model...



















Center panel is not finish yet...















Little circles on wing I made from 2 mm brass tube. On RCU in topic about my F9F Panther, I wrote how I do that. Here is a link:
http://www.rcuniverse.com/forum/m_10..._1/key_/tm.htm


And finally fuselage. This is my second Ziroli Hellcat (about first you can read early in this topic), and on first one I made rivets on fuselage from white glue for wood furniture. They was little to big, so I decided to made rivets now from little vinyl circles...

First few photos from first model...











Now a new one...


























From some details on Hellcat I have good photos, so I try to make my model to be like original...

First Photos from Museum...





Now model...





Big Hellcat again...



Model...







Original F6F again...







My model...






And finally some details from ailerons and flaps. Here is not all finish yet...
















Regards from Novi Sad, Serbia

Mirce
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Old 07-18-2011, 07:07 PM
  #608
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Default RE: Ziroli F6F Hellcat Builder's Diary

thank you Mirce, the topic about the F9F Panther is a great help, if you want to sell a set of the details let me know, they are awsome. What led's did you use on the lighting system on your first Hellcat. Please keep the pics coming, thank you
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Old 08-31-2011, 01:01 PM
  #609
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Default RE: Ziroli F6F Hellcat Builder's Diary

In the meantime I paint my Hellcat, and add some weathering...

































Few photos from work shop...




























To be continued...

Regards from Serbia

Mirce
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Old 08-31-2011, 03:29 PM
  #610
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Default RE: Ziroli F6F Hellcat Builder's Diary

Boy! That came out GOOD Mirce! I'm digging on the yellow. Wouldn't have thought that would be up my alley, but it is definitely sharp with all that detail and markings on there. Beautiful job. You keep getting better with these things.
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Old 09-12-2011, 12:49 PM
  #611
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Default RE: Ziroli F6F Hellcat Builder's Diary



For you Hellcat lovers. My Buddies Ziroli Hellcat powered by Zenoah GT 80, approx 40lbs. http://www.youtube.com/watch?v=YynNNvOhbnM

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Old 09-12-2011, 01:27 PM
  #612
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Default RE: Ziroli F6F Hellcat Builder's Diary

Mirce I like the yellow also and Crashproof that was a good flight on your friends Hellcat. This is a updated shot of mine at warbirds over Berwick with some rockets I added. Keep us posted Mirce.Todd
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Old 09-17-2011, 01:06 AM
  #613
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Default RE: Ziroli F6F Hellcat Builder's Diary

In the meantime i finish my Hellcat and it is ready for maiden.








All little details are done...

Cockpit...







Choke is servo operated...



For flaps I use JR Match Box, with separate battery just for Match Box...





On the top of the cowl is servo which open and close flaps. Big holes will give better cooling...
















Inside is flexible tube for fresh air for carburator area... Two little holes are for scale exhaust cooling...








Plastic fins was add to separate carburator area and for better hot air flow out from cowl...


For better cooling I made hole on the bottom of the fire wall. That hole continues in wings center panel and trough flaps on the bottom of the center panel hot air go out side of model. That flap is workable on servo and it is on same channel with flaps on cowl...



Most of the time I work on engine. As I wrote here last year, my GT 80 with Xoar 24x10 give 12,4 kg of thrust. On model which was 22,5 kg (with fuel) that was very under power.
For this second Hellcat my goal was to made lighter model for which GT 80 will be enough.
New model is just little under 19 kg and I need to add 600 gr lead in the front. Now CG is right like on the plan. I remember that last year, after maiden we removed 700gr lead!!! So, I hope that will be same this year...

For Zenoah GT 80 I choose Xoar 23x8 propeller, and I get 15,5 kg thrust on 7200-7300 rpm on the ground...
On this model I made moving flaps so, area for cooling is much bigger. Also, as you can see on photos, inside of cowl I add two plastic fin to direct hot air outside. Right fin prevent sucking fuel out from carburator.
On the front of the cowl I add plastic for prevent air to come inside in lower part of the cowl. But, one hole with flexible tube send fresh cool air in carburator area...

Hope all that details will help in engine and model performance...


Best regards from Novi Sad, Serbia

Mirce
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Old 09-29-2011, 10:48 PM
  #614
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Default RE: Ziroli F6F Hellcat Builder's Diary

Maiden flight of my second Ziroli Hellcat.


http://www.youtube.com/watch?v=tvzU4...layer_embedded
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Old 09-30-2011, 02:35 AM
  #615
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Default RE: Ziroli F6F Hellcat Builder's Diary

Bravo Bravo! Looks and flies beautiful. A perfect combo the GT80 and Hellcat. Love the paint scheme. Bring to TG 2012.

Congrats Mirce!
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Old 09-30-2011, 07:35 AM
  #616
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Default RE: Ziroli F6F Hellcat Builder's Diary

Mrice, outstanding very well done. I may of missed it but was the final weight?
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Old 09-30-2011, 12:02 PM
  #617
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Default RE: Ziroli F6F Hellcat Builder's Diary

Thanks for kind words...

Final weight is 19,5 kilograms with fuel.

Best regards

Mirce
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Old 09-30-2011, 05:19 PM
  #618
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Default RE: Ziroli F6F Hellcat Builder's Diary

Great job on everything Mirce!!! Well done!!
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Old 10-05-2011, 12:35 PM
  #619
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Default RE: Ziroli F6F Hellcat Builder's Diary

So far I made 15 flights with Hellcat. It is soooooooo good model, and I am very, very satisfied. GT 80 is more than enough, and with scale exhaust sound is loud and fantastic.
Fins on cowl work great, engine is much cooler than on first model...

Few more shots from airfield...






























Regards

Mirce
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Old 10-05-2011, 01:49 PM
  #620
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Default RE: Ziroli F6F Hellcat Builder's Diary

Nice!!
here's a couple of videos of my hellcat from the weekend,

http://www.youtube.com/watch?v=FxgKooL8TEE

http://www.youtube.com/watch?v=gDe04OPr6Ag
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Old 08-19-2012, 04:06 PM
  #621
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Default RE: Ziroli F6F Hellcat Builder's Diary


Quote:
ORIGINAL: mirce

In the meantime I paint my Hellcat, and add some weathering...



To be continued...

Regards from Serbia

Mirce
Mirce,
I applaud your choice in color scheme. I've been planning to do a large scale Hellcat in the same color and markings. I've got my work cut out for me if I'm going to end up with anything as nice as yours though. Did you create a digital rendering of the "bullet-dodging-bee" nose art emblem? If so, is that something you'd be willing to share? I've been contemplating for a while now how I would create that nose art marking; looks like you've figured it out perfectly! Excellent work on this fine aircraft!
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Old 08-28-2012, 05:10 PM
  #622
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Default RE: Ziroli F6F Hellcat Builder's Diary

Hello Hessian,

I saw your reply today... Sorry...

Yes, I can help you with drawings about nose art. I have it, and I made it for my model...

I have all paint masc for Hellcat with mouth and eye - my first F6F model...

I can offer you (and all other Ziroli Hellcat builder) some of my products for scale finishing.
Check my web sit for more details: www.nsmodelers.rs

Please send me e-mail for any question you have...

Best regards

Mirce
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Old 08-28-2012, 06:20 PM
  #623
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Default RE: Ziroli F6F Hellcat Builder's Diary

Hi Mirce, thanks for replying to my inquiry. Your detailing sets with the press-on rivets and screw heads are something to definitely keep in mind when building these large warbirds. Can you also cut custom shapes for panels, hatches, and etc.?

About the nose-art, did you paint on the bee, or is that some kind of sticker or decal?

Thanks again!
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Old 08-29-2012, 12:34 AM
  #624
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Default RE: Ziroli F6F Hellcat Builder's Diary

Hello Hessian,

I can offer for your model few my products:

- Mirce Finish Set
- Detail Set
- Paint Masc for stars and Bars.

For F6F nose art, I draw it from few pictures I find on Internet. Maybe it's not 100% same, but its very, close to original.
In process of Hellcat painting, my friend paint black and white circles, and I made all other from vinyl foils...

I can cut those nose art to you. If you want, I can apply all on white circle, so in that case, you just need to paint black surface on cowl, and apply my sticker. I will inform you what diameter need black circle need to be...

For more information about Mirce Finish Set, Detail Set, and Paint Masc, please visit www.nsmodelers.rs where can find all about every product I made for scale finishing...

If you have some questions send me e-mail on: mirce.rc@gmail.com

Best regards

Mirce
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Old 09-20-2012, 05:00 AM
  #625
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Default RE: Ziroli F6F Hellcat Builder's Diary

How look Detail Set for Ziroli F6F Hellcat you can see on this link: https://sites.google.com/site/nsmode...-za-ziroli-f6f

There are many close up photos of the model...

Best regards

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