Boeing 747 cockpit section 3D model

[phil744]

Howdoo.

Just a note to let you know I have uploaded revision 1 of my 3D 747 cockpit shell here.

http://www.mycockpit.org/forums/downloads.php?do=file&id=145

As usual its a long way from being finished but i thought I would share with you all.

The idea is that it will be constructed the tried and tested (and quite frankly excellent) ivar hestnes method

It is as close to the real dimentions as possible, however please dont order a new windshield for a real 747 based on these drawing:)
But its ideal for planning your sim layout and trying to figure out "will it fit in the garage!"

The files are currently in .STL format, i can export to several different formats if required, if you do require a different format please PM me

But most of all enjoy!!

Phil

http://i17.photobucket.com/albums/b52/madmini1/1.jpg
http://i17.photobucket.com/albums/b52/madmini1/2.jpg
http://i17.photobucket.com/albums/b52/madmini1/3.jpg
http://i17.photobucket.com/albums/b52/madmini1/4.jpg

[Trevor Hale]

Very nice work indeed.

You have spent a lot of time and effort on this one. You have done a wonderful job.

Trev

[Matt Olieman]

Excellent work Phil, thanks for sharing your CAD file with us :)

[ivar hestnes]

:shock::shock::shock:

Thats the best drawing I have seen.

What a great job you have done.

Is Cad-drawing your occupation? Looks very professsional:)

[phil744]

Cheers for the great replys.

Ivar, you are correct, 3D design is my day job, also if you dont mind me asking, on your shell construction what spacing did you use between the vertical and horizontal spars?

I have to be honest, its the single most difficult thing ive had to draw, basically its just a lofted protrution following 3 profile guide lines, its not 100% perfect yet, I know the roof line has a little less of a radius versus the true part.

I have allready been asked to produce an 2D autocad drawing of this aswell, give me some time and i will upload that when I can.

If I get time i will have a go at a 737NG aswell, But I allready know that will be much harder than a 747.

But because of the deal falling through on a new home for my sim, I cant start building yet, so I am designing everything in 3D to start with, every part - should be fun.

Regards

Phil

[Badge]

Can you tell me the overall height and width of this shell? I am building the cad plans of my soon to be built detached sim room and even though I am not building the 747 I am using you great shell as a stand in.

[phil744]

Sure,

The height is 2025mm, the width is 3465mm and the length from front to back is 2488mm.

I should upload a 2D autocad version of this really.

P.S. Working on a 737-NG nose section at the moment :p

[Geremy Britton]

sound great the 737NG nose section will be realy helpful for me in the future thanks for your work!

gez

[vitabutch]

Sure,

The height is 2025mm, the width is 3465mm and the length from front to back is 2488mm.

I should upload a 2D autocad version of this really.

P.S. Working on a 737-NG nose section at the moment :p

Its great! We are doing the same thing. I want to mention that just a shell is not what we need. The real 737 hull is constructed from stringers and base stations (pls see pics attached). Each base station has its number that corresponds to the distance from nose of the aircraft in inches. The position of the base stations is important for simbuilders because all the rest if the elements like control column shaft, pedals shaft, etc...are mounted on the base stations and floor ribs. I am working on it, rebuilding the whole picture in one drawing. Its not an easy task - most of the measurements from the web are inaccurate and a lot of intellegence needed to put it all together finding geometrical constraints. The most complicated part is windows section. On 737 windows are flat, but its turned in all directions in vertical and horisontal planes. This is what I stuck with at the moment.

P.S. Nice exercise - ple take a front window dimentions that are widely available in the net. And try to put them together in the CAD tool - and it will not work :)
P.P.S. I would recommend you to add some more construction elements - it will make a shell solid. And windows mounting will be easier. If you take a look on any opening in the skin of fuselage - there are solid ribs surrounding the opening to fix the skin to the hull.

[ivar hestnes]

When I put together my shell, I also got trouble with the windows. But only with the front windows.

I had to make each front window about 8cm more wide. Then it worked fine. But I did not have any autocad-drawing.

Only trial and failure.

:)

[vitabutch]

When I put together my shell, I also got trouble with the windows. But only with the front windows.

I had to make each front window about 8cm more wide. Then it worked fine. But I did not have any autocad-drawing.

Only trial and failure.

:)

Yep, in reality I would do the same - its much faster way to make a real work done. Drawing takes much more time. :(
The only problem that I have a garage with workshop in my home country, but currently I live abroad. I think my landlord wouldnt like the idea to turn the flat into construction yard :grin:
I am also helping with another project of my friend (http://www.opencockpits.com/modules.php?name=gallery2&g2_itemId=8002). You can see he has some space :) So I can tell you that you are absolutely right - trial and failure :)

[phil744]

Hi vitabutch,

Thanks for your comments, the shell i designed was intended for me to see if it would actually fit in the garage at home leaving enough room for the projector system, but unfortuantly it dont:( so i thought i would upload it anyway to help people to plan there overall sim layout. I know that there are some errors with it, but at the moment im designing the entire pedistal, MIP, glare and overhead in detail, once i have all that done i will insert it into the shell then really go into the shell construction to make it all fit, then probably upload that to replace the one avaliable now. By the way, it was never the plan to design my sim fully in 3D, but because i have no where to start building yet i have nothing better to do;)

I understand what you mean about designing the 737 cockpit, because of the flat windscreens versus the round profile of the body make the geometry absolutly head bending, i have spend a week trying to get it right but somehow its always wrong:mad: however i have just been to the model shop and bought a 737 model and im going to see if i can 3D scan it, should save a lot of messing about i hope;)

Phil








Its great! We are doing the same thing. I want to mention that just a shell is not what we need. The real 737 hull is constructed from stringers and base stations (pls see pics attached). Each base station has its number that corresponds to the distance from nose of the aircraft in inches. The position of the base stations is important for simbuilders because all the rest if the elements like control column shaft, pedals shaft, etc...are mounted on the base stations and floor ribs. I am working on it, rebuilding the whole picture in one drawing. Its not an easy task - most of the measurements from the web are inaccurate and a lot of intellegence needed to put it all together finding geometrical constraints. The most complicated part is windows section. On 737 windows are flat, but its turned in all directions in vertical and horisontal planes. This is what I stuck with at the moment.

P.S. Nice exercise - ple take a front window dimentions that are widely available in the net. And try to put them together in the CAD tool - and it will not work :)
P.P.S. I would recommend you to add some more construction elements - it will make a shell solid. And windows mounting will be easier. If you take a look on any opening in the skin of fuselage - there are solid ribs surrounding the opening to fix the skin to the hull.

[dnoize]

I understand what you mean about designing the 737 cockpit, because of the flat windscreens versus the round profile of the body make the geometry absolutly head bending, i have spend a week trying to get it right but somehow its always wrong:mad: however i have just been to the model shop and bought a 737 model and im going to see if i can 3D scan it, should save a lot of messing about i hope;)

Phil

I think alot of people are looking forward to your 3d design for the 737 shell :-)

Stef

[vitabutch]

however i have just been to the model shop and bought a 737 model and im going to see if i can 3D scan it, should save a lot of messing about i hope;)
Phil

Wow! Great idea! :)

I can help you with some proven data about 737 windows - its thickness (to get overall just add all thickness):

Window #1 - windshield - glass (0.1875 in); vinyl (0.380); glass (0.500)
window #3 - sidewindow - 0.180; 0.280; 0.380
window #4 - front eyebrow - 0.125; 0.300; 0.250; 0.200; 0.062.
window #5 - side eyebrow - 0.125; 0.300;0.250

window #3 - sliding window - 0.500; 0.350; 0.1875
Here is a PPG diagramm of layering of the windows. http://buyat.ppg.com/REP_aerospace_files/Transparencies/707_727_737-020404.pdf

One of the makers of 737 windows is Sierrasin company. They have a nice datasheet page to look into http://www.sierracin.com/commercial_datasheets.html
There is no 737 model presented - probably because of this http://gozips.uakron.edu/~dratler/2006tradesec/materials/boeing.htm
Boeing sued Sierrasin for disclosing their secret data about 737 windows.

Interesting fact 707, 727, 737 windows are the same :)

Some more datasheets from PPG http://corporateportal.ppg.com/NA/Aerospace/Transparencies/CommercialAviation/Trans_CommAviation.htm