Butcher Bird Scale Project

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Re: Butcher Bird Scale Project

Postby sanputas on Mon Oct 09, 2017 10:00 pm

Finally the spinner!

After almost 2 months waiting for the 3 blade spinner to arrive from US, it was time to finish off this project.

Spinner cut outs wouldn't fit the Biela 3 blade so I had to grind off the openings carefully with a dremel to allow enough clearance from the blades.

This particular plane existed in 2 variants, one in black and one with spiral yellow spinner. I decided to go with the spiral one as it looks cooler and matches the prop and wing tips. 8-)

Painting process was very straight forward

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3M blue vinyl tape was used to create the spiral. I tried different tapes but none of them were flexible enough to contour around the spinner, so had to order this particular tape for its flex masking characteristics.
This was applied carefully eye balling the spiral effect.


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Frog tape was used afterwards to mask the areas in black.


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KlassKote yellow paint was used for this. Mixing as usual 1:1:1. Black colours should be applied over lighter ones but in this case as the spinner was already painted black, I had to do the opposite. This took some time and coats to cover the black.


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Final result and with very good results.. What a shame it was going to be weathered...


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From the front


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Spinner chipped to show the aluminium underneath. This was done by scrapping the paint in random directions, emulating debris flying towards the plane when ground attacks.


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Fine sanding paper was used to blend the yellow spiral and deteriorate the paint overall. Then black and dark grey washes were applied with Tamiya paints. Finally a coat of KlassKote clear Matt was used to seal the surface.


8.jpg
Final result, looking deadly.


So I am wrapping up this project now...

It has been 3 years since I started and although my first scale project, I know there are things I could have done better but I think it will look great in the air anyway. Most important I have learned and enjoyed a lot and cannot wait to get this bird in the air and enjoy that radial sound!

I will be going to Phoenix MFC hopefully this week to do some taxi and engine tests and get some pictures.
Then maiden day... :? :violin: :D
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Re: Butcher Bird Scale Project

Postby Big Si on Tue Oct 10, 2017 6:17 am

This has been so cool to follow and watch it grow into an amazing detailed plane that most of jus could only dream of doing
even if we could most of us would not have a clue or be bothered to go to that detail
hope its at Weston Park next year so can have a close up look or somewhere I go to
its been fab getting to see how things are done
thanks for taking the time to show and tell
happy flying
Si
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Re: Butcher Bird Scale Project

Postby sanputas on Thu Oct 12, 2017 9:55 am

Big Si wrote:This has been so cool to follow and watch it grow into an amazing detailed plane that most of jus could only dream of doing
even if we could most of us would not have a clue or be bothered to go to that detail
hope its at Weston Park next year so can have a close up look or somewhere I go to
its been fab getting to see how things are done
thanks for taking the time to show and tell
happy flying
Si


Thanks man

Pictures of maiden day coming soon...
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Re: Butcher Bird Scale Project

Postby sanputas on Wed Oct 25, 2017 10:22 pm

Decided to take the FW190 to the field today to perform some tests:

- Taxi test - testing ground handling. Quite please with the way it handles.

- Engine test - very smooth, temperatures are getting closer between 3 cylinders which is always good. Steady idle as a swiss watch and reaching good peak performance with the 3 blade Biela prop. Ran almost a tank on the ground in the end.

- Range check test - all seemed ok with reduced and full power with engine running. 360 degrees.

- Preflight tests - AFR's done, flight conditions and mixes ready.

- CG spot on.

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Getting ready


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Plenty of oil coming out of the exhaust onto the fuel drop tank...kinda looks good!


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No excuse now for maiden day... 8-)
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Re: Butcher Bird Scale Project

Postby JonT on Thu Oct 26, 2017 2:59 pm

Really enjoyed following your thread and the model looks amazing!!

Just wondering, everything checked out, blue sky and light winds, what stopped you maidening yesterday ;)
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Re: Butcher Bird Scale Project

Postby sanputas on Thu Oct 26, 2017 3:46 pm

JonT wrote:Really enjoyed following your thread and the model looks amazing!!

Just wondering, everything checked out, blue sky and light winds, what stopped you maidening yesterday ;)


Haha! Good question!
I needed to take the pressure off by running these tests and finishing off programming the Tx so less things to do on D day. ;) Although during a quick inspection today I found out a leak in the tank! - :doh: which now I need to investigate so kinda good I didn't fly in the end..

Once all sorted, I willl find the day and bring D.W. from motors and rotors to test flight her first. No more excuses!
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Re: Butcher Bird Scale Project

Postby Goreyflyer on Thu Oct 26, 2017 8:17 pm

She looks fantastic in the natural light.
Have enjoyed ready and following this superb workmanship !

Now to start getting mentally prepared for the maiden ! :)
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Re: Butcher Bird Scale Project

Postby JonT on Thu Oct 26, 2017 9:12 pm

sanputas wrote:
JonT wrote:Really enjoyed following your thread and the model looks amazing!!

Just wondering, everything checked out, blue sky and light winds, what stopped you maidening yesterday ;)


Haha! Good question!
I needed to take the pressure off by running these tests and finishing off programming the Tx so less things to do on D day. ;) Although during a quick inspection today I found out a leak in the tank! - :doh: which now I need to investigate so kinda good I didn't fly in the end..

Once all sorted, I willl find the day and bring D.W. from motors and rotors to test flight her first. No more excuses!


Fair enough!

Good luck with the maiden, I'm sure Dave will do a fine job.
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Re: Butcher Bird Scale Project

Postby Dave Wilshere on Mon Oct 30, 2017 11:16 am

Did you do a final weight? Will watch the wind direction and prompt ;-)

D
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Re: Butcher Bird Scale Project

Postby sanputas on Tue Oct 31, 2017 7:08 pm

Dave Wilshere wrote:Did you do a final weight? Will watch the wind direction and prompt ;-)

D


Final weight as if I remember well from post 18 came down to 13.5kg inc. all batteries (no pylon+drop tank) and no fuel which together I think it will be around 14Kg tops. Before maiden, I will weight the model in the field again though.

More problems:

Looking at the fuel leak the other day, looks like I will have to get a new tank as it looks like the stock one broke on both sides when I first assembled it. What a piece of crap! - I didn't even tighten much the cap. :?

This concerns me as I already built a frame for it and now I will have to either get one that matches same dimensions, or rebuild the frame around the new one..

The stock tank is 725ml (24.5oz) any ideas where I can get one of similar dimensions ?

L:16cm
W:8cm
H:6cm

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2.jpg
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