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Old 03-13-2011, 06:51 PM   #1
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Hello All,
Just to keep it interesting, and to test your knowledge please try and guess the manufacture and model of the mystery aircraft.
I will post some pics later when the airframe is progressing.

I should shoot myself for starting another project but it sounded like a fun idea at the time & I want to make this project at a much larger scale in the future!

I’ll rename the post upon successful identification


Cheers & have fun guessing,
Dave


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Old 03-13-2011, 09:49 PM   #2
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Default dont know just guessing

I am going with a gruman goose, I know he is working on a big sea plane already and so am i . joe
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Old 03-13-2011, 11:57 PM   #3
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Welcome aboard, I hope you sharpen the countenance of us all with your build.

Possum

Founder, Chief Builder, Head Designer, an Lead Test Pilot of Possum Holler Aircraft Company. (A made up company that transforms styrofoam into packing peanuts, and balsa wood into toothpicks)
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Old 03-14-2011, 12:12 AM   #4
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Do we get a clue?
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Old 03-14-2011, 01:34 AM   #5
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Hello all,
Some clues:
Only one aircraft was ever made and it could do something very unique.

It is also an aircraft that can take off from the sea or land.

Verwendung
Triebwerk
Startleistung
spannweite 405.511in
größte Länge
Flügelfläche
Höhenleitwerkfläche
größte Höhe über
größte Länge 399.60 in
Rüstgewicht
zuladung
fluggewicht

Two data points in full scale Imperial units, units were orignially metric.
Will post some pics of the half model soon.
Cheers,
Dave
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Old 03-14-2011, 03:39 AM   #6
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hmmm does something unique. It wouldn't be that old Danish Submarine plane concept would it? lol

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Old 03-14-2011, 11:15 AM   #7
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Sorry, not a sub plane.

The lines of the aircraft in 2 of the 3 views (reinked)

Cheers,
Dave


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Old 03-14-2011, 01:38 PM   #8
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Then I would have to say its a Dornier do 212 maybe? Very similar tail feathers.

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Old 03-14-2011, 01:45 PM   #9
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Originally Posted by Wrongway-Feldman View Post
Then I would have to say its a Dornier do 212 maybe? Very similar tail feathers.
Hi Wrongway
I agree
http://www.histaviation.com/Dornier_Do_212.html
Take care dear friend
Yours Hank

"When wild the head-wind beat,Thy sovereign Will commanding, Bring them who dare to fly, To a safe landing."
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Old 03-14-2011, 02:12 PM   #10
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You guys are GOOD!

(Even without... the give it away 3rd view!)

Fingers crossed, issues Dornier had should not be significat with RC power to weight ratios


Hmmm... did not think to many folks new of this little known aircraft

Cheers,
Dave
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Old 03-14-2011, 02:30 PM   #11
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Default to many planes. lmao

Dave i have found out after being here for just a little bit these guys are on top of their airplanes and a much better crowd to build with. Good luck with this build as you dont have enough now.lol joe
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Old 03-14-2011, 02:36 PM   #12
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I for one can't wait to see this one. Just one of the many over engineered and overly complicated designs the Germans were famous for.
But as a model it should be a stunner. I'm assuming you'll mount an outrunner at the back rather than burying it inside the fuselage and using a long prop shaft.
pictures and vids. We want it all. Lol.

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Old 03-14-2011, 06:48 PM   #13
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A quick sketch/tease of the Mechanism.
(all data subject to change)

Cheers,
Dave


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Old 03-14-2011, 07:09 PM   #14
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Nice build dave cant wait to see it progress. joe
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Old 03-14-2011, 08:30 PM   #15
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Thanks Joe,
The data & 3 view (All German text) for this build can be located within the book "DIE DEUTSCHEN FLUGBOOTE"

Cheers,
Dave
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Old 03-14-2011, 08:43 PM   #16
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Hi
Do enjoy
Take care
Yours Hank

"When wild the head-wind beat,Thy sovereign Will commanding, Bring them who dare to fly, To a safe landing."
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Old 03-15-2011, 03:59 AM   #17
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Ok, what was the thinking behind the adjustable thrust line? Can't imagine there would be enough benefit to warrant the extra weight and complexity. I never would have thought of that one; talk about a unique project! Can't wait to see this one come together. John.
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Old 03-15-2011, 04:06 AM   #18
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Originally Posted by jungmann1 View Post
Ok, what was the thinking behind the adjustable thrust line? Can't imagine there would be enough benefit to warrant the extra weight and complexity. I never would have thought of that one; talk about a unique project! Can't wait to see this one come together. John.
Hi John
They had a 460 bp Hirth HM 512B 12-cylinder air-cooled engine which, mounted aft of the four-seat cabin, was buried in the fuselage and drove a four-bladed airscrew aft of the tail by means of an extension shaft which could be raised to provide adequate water clearance during takeoff and landing.
Take care
Yours Hank

"When wild the head-wind beat,Thy sovereign Will commanding, Bring them who dare to fly, To a safe landing."
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Old 03-15-2011, 11:40 AM   #19
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The 3rd view

FYI, the wing tip sponsons (lower half are removable).

It looks as if the motor may have to be offset from the output shaft, not a big issue.

The prop has an expected 3-4 deg down angle in the stowed position


Cheers,
Dave


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Old 03-16-2011, 11:42 AM   #20
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After a bit of figuring and much thought I have settled on 3/16 scale.

Wing area is aprox. 757 in
Wing span is aprox 74 in

I have grown fond of making half models and they are quite enjoyable to carve.

In the interest of time I will be making a half model a bit proud. Upon completing this model it is my hope to glue up the opposing side and glue them together to form a plug.

This build must be inexpensive so a bit of creative scavenging needs to be in order.
Old printers and computers may be able to supply some of the needed parts to fabricate the drive train.
I find these gems at the local rubbish/recycling center for free. While the parts look exciting, some of the items will not be of any value.

Notice the free ferrite beads... great for noise suppression!



Cheers,
Dave


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Old 03-16-2011, 11:04 PM   #21
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Regrettably, I must withdraw from the festivities, after printing out the plan I have come to the conclusion that it will be impossible to do this for $100.00 or less.

I believe AXI 4120 motor, a motor I have owned for some time… I think is more that the price limits.
I will still be building the model as it is a very special aircraft that I believe needs to be built.

Follow along if you like, it will be a slow build now as I have to many irons in the fire

On a side note... I am in the process of purchasing a Laser cutting system, I forsee reasonable priced short kits on the horizon.


Dave


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Old 03-16-2011, 11:20 PM   #22
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Originally Posted by HO-229 View Post
After a bit of figuring and much thought I have settled on 3/16 scale.

Wing area is aprox. 757 in
Wing span is aprox 74 in

I have grown fond of making half models and they are quite enjoyable to carve.

In the interest of time I will be making a half model a bit proud. Upon completing this model it is my hope to glue up the opposing side and glue them together to form a plug.

This build must be inexpensive so a bit of creative scavenging needs to be in order.
Old printers and computers may be able to supply some of the needed parts to fabricate the drive train.
I find these gems at the local rubbish/recycling center for free. While the parts look exciting, some of the items will not be of any value.

Notice the free ferrite beads... great for noise suppression!



Cheers,
Dave
Originally Posted by HO-229 View Post
Regrettably, I must withdraw from the festivities, after printing out the plan I have come to the conclusion that it will be impossible to do this for $100.00 or less.

I believe AXI 4120 motor, a motor I have owned for some time… I think is more that the price limits.
I will still be building the model as it is a very special aircraft that I believe needs to be built.

Follow along if you like, it will be a slow build now as I have to many irons in the fire

On a side note... I am in the process of purchasing a Laser cutting system, I forsee reasonable priced short kits on the horizon.


Dave
Hi Dave
Yours finds look awesome what a treasure trove
Too bad about having to drop out of the contest but i surely will be watching this build with keen interest and much anticipation
Take care
Yours Hank

"When wild the head-wind beat,Thy sovereign Will commanding, Bring them who dare to fly, To a safe landing."
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Old 03-16-2011, 11:36 PM   #23
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Thats to bad dave but i will be watching your builds on any site you are a great modeler and as far as getting a lazer cutter ,i will get good prices from you cause i just called you a great modeler.lmao All kidding aside dave i will keep watching this build and your spruse goose build also . I only know of one other modeler that would have taken on this kind of plane and he is working on a 25% beach starship now here in IL. joe
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Old 03-17-2011, 10:57 AM   #24
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Thanks guys,
The DO-212 I believe will be a truly special aircraft when complete. I was hoping to quickly carve the half model and take off the lines and directly transfer the data to balsa. It became obvious upon printing the profile view the size of the power plant required will put this aircraft over the price limit; other knock off motors are available but I do not believe it would be enough.
I do believe it is possible to build the airframe for less than $100, I have a crate of balsa that I have been using over the last 10 years and this aircraft I believe would have put a little dent in it.

I am excited about the purchase of the laser; it should expedite the tapered and elliptical wing manufacturing process, and it will also keep me away from the band-saw. I also despise dust so it will be a great joy using it.


My true passion is recreating these rare and unique aircraft. I look forward to gluing this blank up and fairing its lines.

Cheers (a sucker for starting another lofty project),
Dave
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Old 03-18-2011, 12:05 PM   #25
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The ½ model blank in glue-up; will send it through the planer and square it up after lunch

Cheers,
Dave


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