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May 12, 2013, 04:33 PM
71% of the world is runway . .
Bart83's Avatar
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Discussion

Dornier Do-24K Construction idea's


Hi all ,

Since my Short S.23 Empire flyingboat is done and the shortkit is in production and the plans are available i thought it is time to focus on the next project.
This time i try a different approach and so start a thread to discus the possible construction methods here on Rcgroups. It will be most intresting to see what idea's will pop up

The next project will be the Dornier Do24K , a beatifull flyingboat used by the Dutch naval airservice in the former Dutch Indies.

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The boats were build part by Dornier itself and part by the Dutch Aviolanda / schelde factory. I have read alot on the history of this aircraft and when the build threat has started i will post some intresting stories from the past like i did on the empire thread.

Now for the model this is what i have in mind :

A full wood construction in a mix of balsa and birch ply. The scale of the model will be 1:10 wich gives a wingspan of 270cm ( 106inch ) and a hull lenght of 220cm ( 86inch ).
For easy transpot the wing wil be build in 3 sections and the hull from 2 with the split behind the top ( middle ) turret. Also i want the tail to be removable in 2 parts. This way the model will fit in a normal size car. The plane will be full sheeted so glassing as an option. I want this plane to be light but not so feather light that it only can be flown when there is no wind. Like the real one it has to excel on rough water.

The model has been build before by some german modelers but there is no plan or kit available as for as i know. ( except one very big and axpensive kit ) When my model is a succes i available and Gary will put effort into producing a lasercut kit and vacuum formed parts.

Here are some of the models from germany :

Marcel Henrich : Do24K scale 1:8 345cm wingspan ( 135inch ! ) Wood construction , brush motors

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Tobias Moser : Do24ATT scale 1:9 333cm wingspan ( 131 inch ) Full GFK construction

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http://www.rcmovie.de/video/b8616a7833ee4b289815/



Rolf Breitinger : Do24T Scale 1:10 wingspan 270cm ( 106inch ) Full GFK

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http://www.rcmovie.de/video/ff838962...Grundlsee-2007

Cheers,

Bart
Last edited by Bart83; Aug 31, 2014 at 03:35 AM.
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May 12, 2013, 04:55 PM
a.k.a Maltone
Pat Lynch's Avatar
Bart - an interesting project! I have always been fascinated by the Do24 aircraft series but the difficult shapes in the fuselage will make it a challenge
The Marcel Heinrich video is excellent - in some shots it looks almost real!
I cannot help you with construction suggestions but I will be watching with interest.

Pat
May 12, 2013, 06:31 PM
GLM
GLM
AMA 209854
GLM's Avatar
Checked in with bells on!

Cheers!

Gary
May 12, 2013, 07:52 PM
Parkcityflier
parkcityskier's Avatar
Glad to see that the thread is up. I've started to work on the plans for mine but will keep them on the back burner in favor of what you will come up with. It will give me a chance to work out some of my ideas for construction, though, and I'll post anything that might be of interest to you. I probably wouldn't start cutting wood until the Fall so it will be interesting to see where you are with yours by then.

Jim
May 12, 2013, 08:11 PM
96RC/3178W
MattZC's Avatar
Cool stuff, Bart. Can't wait to see what you come up with.

Matt
May 12, 2013, 08:15 PM
GLM
GLM
AMA 209854
GLM's Avatar
I'm looking forward to building one of these for these kinds of conditions...

Dornier 24 on high seas (1 min 55 sec)


In scale of course

Something like this at our favorite lake.

Do ya wanna' dance? (9 min 39 sec)
Last edited by GLM; May 12, 2013 at 08:22 PM.
May 12, 2013, 09:28 PM
llqzbj
Great work! good luck!!!
zbjllq
May 12, 2013, 09:37 PM
Registered User
TripleW's Avatar
That's too windy for me!

The DO-24 will have a tough time on the water with a crosswind. No wing floats.
May 12, 2013, 11:29 PM
Registered User
Wormboy's Avatar
Gees Bart, you dont miss a beat do you?
You've no sooner finished one project before you're straight into the next.

Thats a great topic you've chosen. Flying boats all seem to have so much class and the Dorniers seem to have just that little bit of extra character to set them apart.

I'll be watching your project keenly as I am considering a similar project on a related model

-Mat-
May 13, 2013, 01:47 AM
71% of the world is runway . .
Bart83's Avatar
Thread OP
Thanks for the intrest

Here is a very nice video i would like to share , i set it to 10.05 that is where the Do24K comes into picture.

http://youtu.be/OP5nHuPB4c8?t=10m5s

And here are some nice pictures :

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Recently i visited the Dutch militairy aviation museum to see the real thing , it is a former spanish Do24T showing dutch markings. This plane has different engines and cowls as the Do24K wich has wright cyclone's.

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Cheers,

Bart
May 13, 2013, 07:26 AM
Parkcityflier
parkcityskier's Avatar
This what you can expect with the Dornier24K and its use of fuselage sponsons in high winds and crosswind water handling:
The Dornier Wal, Winter (4 min 27 sec)

It is definitely manageable, however, as I found out with my Wal. With the Dornier24K version that I am considering, I'm thinking of using a slightly non-scale sponson with a little more volume and span.

Jim
May 13, 2013, 09:51 AM
Parkcityflier
parkcityskier's Avatar
Bart, having a real example of a DO 24 available to you for viewing is a huge advantage for a build. Thanks for posting some good quality pictures of some of the important parts of the full scale airplane. For this build, having a fiberglass fuselage available would be a big advantage for this airplane as it is a pretty complex structure. However, I'm going to go ahead with a conventional design using Ivan's methods for the lightest possible airplane. Due to the fuselage's shape, I'm going to go with a basic truss frame skeleton and then add partial fuselage formers to it to get all the rounded and compound curves to work. The fuselage planking will probably require more formers than usual to support lightweight 1/16" sheeting but shouldn't be a big problem. Glassing the balsa fuselage with lightweight cloth will then add to the strength and give it a smooth surface for painting. Based on my experience with other fuselages, fiberglass versus built up, I think that it will still be much lighter being built up. My thought at this time is to run my posts parallel with yours on this thread, for building ideas only, and see what looks best when I am ready to start a build, itself. I still like your idea of a laser cut kit, though.
May 13, 2013, 10:44 AM
71% of the world is runway . .
Bart83's Avatar
Thread OP
@ Jim ,

Feel free to post annything you like here as long as it is related to the Do24. When the actual build starts i'll start a new thread.

3d artist Wiek Luijken was kind enough to provide me with his 3d mesh model of the Dornier he drew up for the artwork as seen in the 1st post. This 3d model will provice a good base to start from as i am able to extract outline's and sections from it. I attached some cad screens of this model , the last one is the model splited into the parts for transport.

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Cheers,

Bart
May 13, 2013, 09:53 PM
Parkcityflier
parkcityskier's Avatar
Thanks, Bart. My intent was not to hijack your thread, only to post any ideas that you might want to use or modify to your own use. I'm looking forward to the build. If I decide to go ahead with my own design I'll start a new thread for that but I'm very interested to see what you come up with and it would save a lot of my time building from a kit.

I just spent 10 days in your country and I didn't think to try to find that air museum. Poor headwork on my part. I'll definitely do it next time.

Jim
May 13, 2013, 10:09 PM
71% of the world is runway . .
Bart83's Avatar
Thread OP
Quote:
Originally Posted by parkcityskier
Thanks, Bart. My intent was not to hijack your thread, only to post any ideas that you might want to use or modify to your own use. I'm looking forward to the build. If I decide to go ahead with my own design I'll start a new thread for that but I'm very interested to see what you come up with and it would save a lot of my time building from a kit.

I just spent 10 days in your country and I didn't think to try to find that air museum. Poor headwork on my part. I'll definitely do it next time.

Jim
Hi Jim ,

The museum is now closed to mid 2014. It will be joined with the army museum on a new location. Im also looking forward to see what you come up with The actual build of my Dornier wil start sometime near oktober/november if everything goes well.

Cheers,

Bart


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