Space 1999 Eagle Transporter Forum


Go Back   Space 1999 Eagle Transporter Forum > Main Mission > Launch Pad

Notices

SPONSORED BY
&

Reply Bookmark and Share
 
Thread Tools Display Modes
Old 10-02-2009, 10:04 PM   #1
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Does any one have any insight to the Discoverys engines.

Hi all as some of you know I have been working on an engine for the discovery from 2001.


Just as I was about to call it done I saw this thread
http://www.eagletransporter.com/foru...ead.php?t=2866
and Keith's drawing (P.19)
http://i137.photobucket.com/albums/q...ineDrawing.jpg
My attention was drawn to the engines in this old picture.

I came to the Horrible conclusion that my work may well have been for not. As you see an old
picture got a new look, and I began to see that my engine was to short.

and with my picture (taken from about the same distance away) and Keith's drawing,
I see I need to stretch out my engine like so.

My question to those who have a good eye is using Keith's drawing and all the reference material
out there could you please tell me what you see that is incorrect or please inform me of what you
think should be on the engine. Frankly all comments are appreciated. I don't want to do this a
third time. Thanks for the input.
moonbus is off duty   Bookmark and Share Reply With Quote
Old 10-02-2009, 10:29 PM   #2
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default I don't know about the bellows

I don't know about the bellows. I took a good look at a screen grab I have and it appears to me that the bellows go all the way to the bottom of the far right engine and there is this collar at the base only on the middle engine. Does any one else see this?

middle engine

right engine


Keith?

Last edited by moonbus; 10-02-2009 at 11:25 PM.
moonbus is off duty   Bookmark and Share Reply With Quote
Old 11-02-2009, 12:29 AM   #3
astrocat
Medical Technician
 
Join Date: Nov 2006
Location: Wet and windy UK
Posts: 158
Default

Quote:
Originally Posted by moonbus View Post
I don't know about the bellows. I took a good look at a screen grab I have and it appears to me that the bellows go all the way to the bottom of the far right engine and there is this collar at the base only on the middle engine. Does any one else see this?

Keith?
I think all of the engines have the same collar, it's just that there is detail (Honest John fenders) sitting on top of fairly chunky raised panels on the bulkhead around the outside of the right hand engine which aren't around the middle engine. Add in the angle we're looking at it and I think that's why the collar can't be seen.

That's my take on it, anyway......

Keith
astrocat is off duty   Bookmark and Share Reply With Quote
Old 11-02-2009, 09:13 PM   #4
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default question about the balls

Hi astrocat I was wondering what your take is on where the balls are located at the base of the engine? are they up against the the bellows or closer to the top edge of the cone aft of the bellows?

As seen in this picture.


Or are they in the middle between A and B?
moonbus is off duty   Bookmark and Share Reply With Quote
Old 11-02-2009, 11:27 PM   #5
saturnapollo
Medical Officer
 
saturnapollo's Avatar
 
Join Date: Jan 2006
Location: Edinburgh, UK
Posts: 2,704
Default

I would say in the middle, going by your stills.

Keith
saturnapollo is off duty   Bookmark and Share Reply With Quote

Old 12-02-2009, 03:11 AM   #6
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Now I see the base

Hi saturnapollo I now see the base under the bellows.
You caught that one.
moonbus is off duty   Bookmark and Share Reply With Quote
Old 12-02-2009, 05:11 AM   #7
Lee S
Eagle Pilot
 
Lee S's Avatar
 
Join Date: Jan 2008
Location: Thailand, Earth, Sol Sector
Posts: 690
Default

Silly question I hope, but you know about Atomic City models and forum right?

L
Lee S is off duty   Bookmark and Share Reply With Quote
Old 12-02-2009, 04:16 PM   #8
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Atomic City

Thanks Lee S for the information. Oh Yes I know Scott and Atomic City. My engine is kind of large would you not say, almost big enough for what size model?
moonbus is off duty   Bookmark and Share Reply With Quote
Old 12-02-2009, 04:57 PM   #9
saturnapollo
Medical Officer
 
saturnapollo's Avatar
 
Join Date: Jan 2006
Location: Edinburgh, UK
Posts: 2,704
Default

Quote:
Hi saturnapollo I now see the base under the bellows.
You caught that one.
Difficult to say with certainty, but it looks like a slight taper section and then the spheres, perhaps nearer B than A.

Keith
saturnapollo is off duty   Bookmark and Share Reply With Quote
Old 12-02-2009, 06:42 PM   #10
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Balls maybe not

Maybe they are not balls, but tanks stretching from point A to B. And the things in between are all square to the centerline also lying on the cone shape part of the engine. I thought they may have been slanted or diagonal to the radial line of the cone. But I am beginning to think other wise. See red lines in lower left hand corner. Tank?
moonbus is off duty   Bookmark and Share Reply With Quote

Old 13-02-2009, 03:52 PM   #11
Lee S
Eagle Pilot
 
Lee S's Avatar
 
Join Date: Jan 2008
Location: Thailand, Earth, Sol Sector
Posts: 690
Default

Hmmm if you happen to be making an engine in about a 1/32-1/35th scale that just might go with a couple of kits out there, to make something about 11ft long. You can sign me up for a kit!!!!!!!!!!!

L

Quote:
Originally Posted by moonbus View Post
Thanks Lee S for the information. Oh Yes I know Scott and Atomic City. My engine is kind of large would you not say, almost big enough for what size model?
Lee S is off duty   Bookmark and Share Reply With Quote
Old 13-02-2009, 05:15 PM   #12
astrocat
Medical Technician
 
Join Date: Nov 2006
Location: Wet and windy UK
Posts: 158
Default

Quote:
Originally Posted by moonbus View Post
Maybe they are not balls, but tanks stretching from point A to B. And the things in between are all square to the centerline also lying on the cone shape part of the engine. I thought they may have been slanted or diagonal to the radial line of the cone. But I am beginning to think other wise. See red lines in lower left hand corner. Tank?
moonbus,

You're right about them being tanks rather than domes. I'm not sure if they are one continuous cylinder, or two components joined to make the shape. My feeling is one piece.
There is also a part from the Airfix SR-N1 kit around the outside of the tank (see pic).



Keith
astrocat is off duty   Bookmark and Share Reply With Quote
Old 13-02-2009, 05:58 PM   #13
saturnapollo
Medical Officer
 
saturnapollo's Avatar
 
Join Date: Jan 2006
Location: Edinburgh, UK
Posts: 2,704
Default

If you look at the one at the top of the picture you will get a better idea. They are certainly not spheres.




Keith
saturnapollo is off duty   Bookmark and Share Reply With Quote
Old 13-02-2009, 08:20 PM   #14
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default more round tanks

That is a good eye you have astrocat spotting the SR-N1 part, but I think they may be a bit more
than half of a tank. This picture shows something a little more round. What do you guys think?
moonbus is off duty   Bookmark and Share Reply With Quote
Old 14-02-2009, 03:24 PM   #15
Lee S
Eagle Pilot
 
Lee S's Avatar
 
Join Date: Jan 2008
Location: Thailand, Earth, Sol Sector
Posts: 690
Default

you also have to remember the size of the original miniature!
That engines section was just MASSIVE! so any kit parts would be just tiny.
I'm not sure but I'd guess the engines were 4-5 feet long each

L
Lee S is off duty   Bookmark and Share Reply With Quote

Old 16-02-2009, 03:08 AM   #16
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Man it grew

Man I did some calculations from the picture and the dimensions of the engine modual and my engine grew from 8 1/2 inches to just under 14 inches. Is this correct?
[IMG][/IMG]
moonbus is off duty   Bookmark and Share Reply With Quote
Old 16-02-2009, 09:25 AM   #17
Bishop
Chief Science Officer
 
Bishop's Avatar
 
Join Date: Mar 2007
Location: South Australia
Posts: 11,796
Default

I thought the central section in the screen shot, brown to green looked slightly fatter than your drawing, but its actually the three engines side by side. So many details to get right. Makes you realise the work involved as people put these models together.
Bishop is off duty   Bookmark and Share Reply With Quote
Old 16-02-2009, 11:17 AM   #18
saturnapollo
Medical Officer
 
saturnapollo's Avatar
 
Join Date: Jan 2006
Location: Edinburgh, UK
Posts: 2,704
Default

I always calculate everything from the diameter of the CM. If you use one constant, you can't (or shouldn't) go wrong. From the fuzzy photos I have, I reckon the engines are 0.762 of the CM diameter.
saturnapollo is off duty   Bookmark and Share Reply With Quote
Old 16-02-2009, 10:59 PM   #19
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default Thanks

Thanks as I have spoken with the master, and he confirmed with some of his later shots that he took at an exhibition of 2001 stuff, that I am pretty close if not right on. This makes most of the Discovery models I have seen some what engine nozzle deficient. So I guess I am not so crazy.
moonbus is off duty   Bookmark and Share Reply With Quote
Old 20-04-2009, 04:25 AM   #20
moonbus
Weapons Technician
 
moonbus's Avatar
 
Join Date: Dec 2007
Location: California
Posts: 138
Default What do you think?

I have finely gotten to sketch out what I thought the engine would look like. Unfortunately as I sketch each part and make them look like what I think I see, when I put them all together it is a little shorter than what I expected. What do you guys think as far as my sketch? Any part look to short or angle incorrect? Looking for input before I go and do this all again. Thanks for the help.

It is coming in at 11 1/16 inches long.

saturnapollo "I always calculate everything from the diameter of the CM. If you use one constant, you can't (or shouldn't) go wrong. From the fuzzy photos I have, I reckon the engines are 0.762 of the CM diameter."

This comes out to .748 If it was .762 then the engine would be 11.20 in long, and that is a difference of about 1/8 in.

Last edited by moonbus; 20-04-2009 at 05:08 AM.
moonbus is off duty   Bookmark and Share Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT. The time now is 07:21 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
This site and contents are copyright Bernard Walsh 2010 all rights reserved, no reproduction of material in any form without written permission email: Bernie.walsh@mac.com