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Scratchbuild a Curtiss Hawk III (BF2C-1) in 1/4.5

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Scratchbuild a Curtiss Hawk III (BF2C-1) in 1/4.5

Old 10-05-2021, 12:03 PM
  #126  
thomasmuckus
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Thanks a lot my friends, thanks a lot
I haven`t been lazy the last few days, just a little distracted....


As the next step, I added dull cote to all the parts.




How you can see, I`ve done a little wheatering, not so heavy. I dont`t really like those very aged plans.
Now I can start bringing the pieces together.
When i started, I noted that the counterweights for the elevator looking terribly.


The new ones looks very much better


I`m sure, you all know this. You take the model apart for painting, put a lot of small parts into a box > and forget to paint them.



Fixed!
Now I finished and varnished the engine dummy. Just added to the cowling.


It`s amazing how strong the cowling is now.
I`ve mounted the cowling to the fuse to see if it all fits.


Doesn`t looks bad, doesn`t it?
Cheers,
Thomas
Old 10-05-2021, 12:45 PM
  #127  
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A master craftsman at work!
Old 10-07-2021, 06:42 PM
  #128  
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Fantastic model!
Old 10-10-2021, 12:08 PM
  #129  
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Thank you guys, your echoes makes me proud.
The tail is completed now, it works as well.



The cover of the elevator mechanism and the door at the back are also done. The printed parts comes out very nice.


So the plane is standing on its own legs.



The next week I`ll mount the engine and install the telemetrie for the cylinder head temperature and the rotation speed. Than it`s time for the first roll tests.
Cheers,
Thomas
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mgnostic (10-11-2021)
Old 10-10-2021, 12:53 PM
  #130  
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Museum grade!
Old 10-11-2021, 12:05 PM
  #131  
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Thank you Mike but i.m.o, my claim is semi-scale, to museum-scale, a lot is missing.
But, fully motivated I put the model together today.



When I compare a top view of the original with the model > close to this.



I didn`t match the color tones but the scheme is close.
At the same time I took the opportunity to weight the plan.7,2 kg, without the engine and some scale parts. The engine with the propeller weighs 2,35 kg. So I hope (if I don`t need lead) to finish with lesser than 10 kg. I had calculated between 10 and 11 kg. Mission accomplished
Cheers,
Thomas

Last edited by thomasmuckus; 10-12-2021 at 04:03 AM.
Old 10-11-2021, 12:47 PM
  #132  
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Thomas, I'm still impressed!

Mike
Old 10-23-2021, 11:40 AM
  #133  
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Thank you so much Mike.
The final completion take more time than I expected. There are so many little things but in summary it takes time....
The electrcal installation is finished yet.



It looks a little bit trashy, but I can put a lid on it




My plan with the large service hatches works as well, I nave place enough for engine setting and choking with my finger.



When I have attached the temperatur sensors I can start with the first rolling tests.....
Cheers,
Thomas
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Old 10-23-2021, 07:21 PM
  #134  
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Nice work!
Old 10-26-2021, 11:26 AM
  #135  
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Now I turn into the finish line.
The cowl with the engine dummy is mounted. From a distance more than a meter it looks like a real nine cylinder (I hope so)



The hubcaps are added.




The pilot needs a seat.


it fits


An instrument panel is required for better operation


After adding the canopy and the wind shield, the pilot takes his final place.




For me this is one of the most exciting moment when the whole things comes a life.
For sure, there are many more possibilities for detailing, but I always will only do semi scale.
As the last step I have to do the flying whires for the wings, this I`ll do on weekend.
See you,
Thomas

Last edited by thomasmuckus; 10-26-2021 at 11:30 AM.
Old 10-26-2021, 11:41 AM
  #136  
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The engine fits in quite well with the dummy cylinders you have to look close to see the difference. The casual observer would take it the whole assembly as a radial engine.
Old 10-26-2021, 04:49 PM
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Nice work!!

Rich
Old 10-30-2021, 11:56 AM
  #138  
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Thanks a lot my friends,
I installed the telemetry this days, temperatur and rotational speed monitoring.




Looks fine doesn`t it?



Today we celebrated on our airfield the end of the season, time to take it out into the fresh air. The air was very fresh, wind strenght in gusts up to 40 km/h.



there is a small video too, the sound is i.m.o. amazing
We also mesured the trust > close to 10 kg, I think this would be enough
I`ve done also some rolling attempts, it walks straight ahead, very nice.



I don`t know if it will be possible to fly in this year, winter is comming, but may be some nice day and so we`ll see....
Cheers,
Thomas

Last edited by thomasmuckus; 10-30-2021 at 12:03 PM.
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Old 10-30-2021, 05:05 PM
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Thomas, she sure looks ready!
Old 11-14-2021, 02:02 PM
  #140  
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Thank you all.
After successful test of telemetrie


I added the flying whires



Normally now comes the success message, but there was a very sad surprise by determeting the CG. I NEED WEIGHT at the tail
Even I put the batteries in the back,


I need close to 500 gramm lead in the back. Thts the price for the heavy landing gear.
Let`s how it develops
Cheers,
Thomas

Last edited by thomasmuckus; 11-14-2021 at 02:04 PM.
Old 11-29-2021, 01:40 PM
  #141  
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I got from the guys at the german "Warbirdforum" this very, very helpful tool:
FLZ-VORTEX
With this help I was able to calkulate the CG exactly.

The next few steps I moved the akkus and the servos as far back as possible.





With this, I don`t need any lead
A friend lend me these cool scales.




The weight is okay, the surface load is close to 100 g/dm˛.
The CG moves only a few millimeters when I retract the landing gear.


I`m also very satified with the balance around the longitudinal axis


So, now I come to an end with this building report. If the weather permits I`ll give you some final pics and,of course, a video from the maidenflight. That will be more in the next year than in the next few days. One of my friends said: "You need good weather and courage.
Five years fun to build.

Thank you all for your followship and helpful motivation,
all the best,
Thomas

Last edited by thomasmuckus; 11-29-2021 at 01:44 PM.
Old 11-29-2021, 05:23 PM
  #142  
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Nice work Thomas!
Old 04-29-2022, 12:01 PM
  #143  
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Hi guys,
Yesterday I planned the maiden flight, but unfortunately we had crosswind at the airfield. Not very strong but I didn’t dare.
But a friend at least took some nice pictures.


Assembling took me 25 minutes, there are a lot of flying wires...




She`s a beauty, isn`t she?
Do you want some details?



The flight season is still young, I think it will fly in the next days.
Cheers,
Thomas
Old 04-29-2022, 12:20 PM
  #144  
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Thanks for the photo Thomas!
Old 04-30-2022, 07:15 AM
  #145  
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Well done Thomas. It is always nice to see one of these complex projects come to fruition.
Old 05-01-2022, 07:30 PM
  #146  
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Truly Master quality work. I can only imagine the hours...... And come up short. Wishing you many trouble free flights and smooth easy first flights.
Old 05-25-2022, 10:53 PM
  #147  
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Whoow! what a cool classic style build! I'm very impressed!

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