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Author Topic: B-29 model  (Read 1613 times)

Offline Tonton-42

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B-29 model
« on: July 21, 2017, 04:51:37 am »
Hi !

The B-29 is my favorit plane and I would like to build a 1/14 model. Is there someone who make it ? My project is whith 4 electric engines for propulsion and approximative scale propellers (dia 14"). I have made an ugly draft for the forward cabin from some revues and internet plans because nothing does'nt exist on this subject with good accuracy ( only Tu-4 drawings have great dimensions !) ... May be someone could tell me if something exists for a better result ?

Regards
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Offline Tonton-42

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Re: B-29 model
« Reply #1 on: July 21, 2017, 05:51:23 am »



Hi !

My first model was a CL-215 (it still exists but does not fly any more) motorized with 2 OS .20 Max and at 1/14 scale (ws = 2040 mm). It was not under powerred because very light (styro + balsa wood + Kraft paper < 3500 g) and I would build the B-29 with same materials.

Regards
« Last Edit: July 21, 2017, 05:54:05 am by Tonton-42 »
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Online Jemiba

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Re: B-29 model
« Reply #2 on: July 21, 2017, 09:08:04 am »
As I understand, the size of the drawing is the problem ? There should be accurate 3-views on the net, but
scaling them to the 1/14 scale actually may not be the best solution.
But from wiki, you can download a 3-view as a svg- (vector graphic) file (https://de.wikipedia.org/wiki/Datei:Boeing_B-29_Superfortress_3-view.svg,
which can be enlarged without loss of quality. And modifying and improving it, is quite simple, too. And you
probably don't need the postion of every rivet, do you ?
There are commercial drawings available, but I don't know, if they really are better.
It takes a long time, before all mistakes are made ...

Online Orionblamblam

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Re: B-29 model
« Reply #3 on: July 21, 2017, 03:08:34 pm »

There are commercial drawings available, but I don't know, if they really are better.

Hmmm, I wonder where a guy, just an average Joe, could go to find a pretty snazzy *ginormous* accurate drawing of a B-29 (ahem "Air Drawing 39" ahem)
http://www.aerospaceprojectsreview.com/catalog/drawndoc.htm



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Offline Tonton-42

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Re: B-29 model
« Reply #4 on: July 23, 2017, 03:00:46 am »

[/quote]

Hi !

Thanks Jemiba and Orionblamblam ! However I knew that drawings ! I also used of them for my draft. But I need something more accurate as a plan to know exactly the curve of the front of the fuselage (plans of coordinates), if that exists, because contrary to appearances, purity of lines does not rhyme necessarily with simplicity !

I drew the front view from the blue print and from the photos in AirTec on Superfortress

@+++

Tonton
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Offline Tonton-42

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Re: B-29 model
« Reply #5 on: July 25, 2017, 10:27:22 pm »

Hi !

To the left the definition Boeing, to the right mine... Small distortion on the length of the dome of the bomber but I think of being right (pride?) further to analysis of photos in several works. Besides I assert that 90 % of the plans 3 views (except facsimile!) in the works are false : the section before is of circular section centered on all its length! B-29 has no nose which sticks up upward or subsides downward ! It is perfectly symmetric on all the axes ...

@+++

Tonton
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Offline Tonton-42

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Re: B-29 model
« Reply #6 on: July 31, 2017, 11:53:26 pm »
Hi !

I've slightly modified with Paint the Bagera's drawing of Enola Gay for better accuracy. It's far to be perfect but it seems the pure lines of the Superfort better without turrets and blisters. Many people prefers another American bomber, B-17 essentialy, but the Superfort synthesize what will be the aviation according to war ...



@+++

Tonton
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Offline Tonton-42

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Re: B-29 model
« Reply #7 on: August 12, 2017, 09:47:33 am »
Hi !

Well, here is my interpretation of the forward pressurized section of the B-29. The couples are positioned as shape as I know, and for their diameters, I find the resembling silhouette ! If one day I launch the manufacturing, it is from there that I shall make it !

Go! It is only the beginning !
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère

Offline Tonton-42

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Re: B-29 model
« Reply #8 on: August 17, 2017, 11:44:40 am »
As I understand, the size of the drawing is the problem ? There should be accurate 3-views on the net, but
scaling them to the 1/14 scale actually may not be the best solution.
But from wiki, you can download a 3-view as a svg- (vector graphic) file (https://de.wikipedia.org/wiki/Datei:Boeing_B-29_Superfortress_3-view.svg,
which can be enlarged without loss of quality. And modifying and improving it, is quite simple, too. And you
probably don't need the postion of every rivet, do you ?
There are commercial drawings available, but I don't know, if they really are better.

Dear Jemiiba,

I do apologize for not having answered immediately something most detailled  :-[, but my English is approximate  ::) and a health worry tortures me a little. My objective is not of course to draw a hyperdetailed model but at less give it the best exact forms because as said higher the simplicity of the forms is not necessarily the easiest to be reproduced. Besides in one of my reference docs (B&S Vol.10 p.29 better than Warbirdtech Vol.14 p.11?) I indeed found the reproduction of the location of the frames of fuselage as well as ribs of wings and stabilizing plans. There is neither diameters nor length of the nervures other than extremities (I bought the plans Aerospace, but the most beautiful girl of the world cannot give that what she has...). However it is already that and I progress to give something usable and totaly free rights for fans who would like build a "little" 1/14 B-29, electical engined or PSS ... has condition to know how to stick two pieces of wood and of polystyrene. What I do not doubt  ;D !

Regards

Tonton
" J'ai fait tous les calculs. Ils confirment l'opinion des spécialistes : notre idée est irréalisable. Il ne nous reste qu'une seule chose à faire : la réaliser ". Pierre-Georges Latécoère