Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: Lizzie_Zoom on 07 July 2009, 14:48:24
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For anyone working on their combustion engine pistons, the following is an example of a brand new one for a 9F 2-10-0 steam railway engine:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9FPiston.jpg)
each one of the two cylinders fitted to the 9F's (except the Crosti boiler examples, which are another story!) had a diameter of 20 inches and a stroke of 28 inches, which with all the other specifications of this class gave a tractive effort at 85% of boiler pressure (250lb psi) of 39,667lb's.
This is the 9F, 92212, that is being overhauled on the Mid-Hants (The Watercress Line) Railway at Ropley which will soon have the piston fitted:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9F92212.jpg)
These freight engines formed a very successful class right at the end of steam on BR, with 9F 92220 Evening Star being the last steam engine built by British Railways in 1960 at the Swindon ex-GWR locomotive works. Now preserved it is one of nine, including 92212, when I last checked.
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How Big Is Your Piston?
Ooh er Lizzie.......that's a bit personal!! ;D ;D ;D
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How Big Is Your Piston?
Ooh er Lizzie.......that's a bit personal!! ;D ;D ;D
Trust you Bob! ::) ::) ;D ;D ;D ;D ;D ;D ;) ;)
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A practical application for such a big one?
[media]http://www.youtube.com/watch?v=b8_jmtbvzmY&feature=related[/media]
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A practical application for such a big one?
[media]http://www.youtube.com/watch?v=b8_jmtbvzmY&feature=related[/media]
Extracted of course from the famous 1936 Night Mail documentary film by the GPO Film Unit, that I have a copy of, but here it is in abbreviated form on Youtube:
[media]http://www.youtube.com/watch?v=Gmq6mFAEqNQ[/media]
Such a valuable historical and entertaining film, which is a must for most steam railway historians and enthusiasts alike :-* :-* :-* 8-) 8-) 8-) 8-)
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A practical application for such a big one?
[media]http://www.youtube.com/watch?v=b8_jmtbvzmY&feature=related[/media]
Extracted of course from the famous 1936 Night Mail documentary film by the GPO Film Unit, that I have a copy of, but here it is in abbreviated form on Youtube:
[media]http://www.youtube.com/watch?v=Gmq6mFAEqNQ[/media]
Such a valuable historical and entertaining film, which is a must for most steam railway historians and enthusiasts alike :-* :-* :-* 8-) 8-) 8-) 8-)
....a very much underrated group :( :y :y
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
Which gives Mark a maximum tactive effort of 62,000lbs :y :y
Well out rating the tractive effort at 39,667lb at 85% boiler pressure, of the 9F :'( :'( :'(
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Just to add though that the preserved 9F 92203 Black Prince pulled a train of 2198 tonnes at Foster Yeoman's Tor Works in September 1982, the heaviest freight to be hauled by any locomotive in the UK. :-* :-* :-* 8-) 8-) 8-) 8-)
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And here's me thinking that LZ had had enough of those young boys in her class and wanted some real men ;D ;D ;D
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
Which gives Mark a maximum tactive effort of 62,000lbs :y :y
Well out rating the tractive effort at 39,667lb at 85% boiler pressure, of the 9F :'( :'( :'(
And hence why the demise of steam came about...... much lower maintenance, better availability, better fuel economy were all the bonus points for diesel (and even more so electric)
The Uk has no choice but to move away from steam.
Did you know they built a class 47 with twin Maybach engines (as per a Western) and electrical drive (look for Brush Class 47 falcon)...sadly scrapped now, it also had a water scoop to use the water troughs on the mainline to replenish the steam heat boilers water supply.
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
Which gives Mark a maximum tactive effort of 62,000lbs :y :y
Well out rating the tractive effort at 39,667lb at 85% boiler pressure, of the 9F :'( :'( :'(
And hence why the demise of steam came about...... much lower maintenance, better availability, better fuel economy were all the bonus points for diesel (and even more so electric)
The Uk has no choice but to move away from steam.
Did you know they built a class 47 with twin Maybach engines (as per a Western) and electrical drive (look for Brush Class 47 falcon)...sadly scrapped now, it also had a water scoop to use the water troughs on the mainline to replenish the steam heat boilers water supply.
Another, crucial reason for the demise of steam, was the working conditions on the footplate and in the sheds. Post war there was a severe shortage of men prepared anymore to labour in dirty, grimy, dangerous conditions in all weathers. A large number of steam engine men enjoyed their job, but the vast majority wanted something a great deal better. The romance of the railways had long disappeared, like it has now about being an airline pilot, and the wonderful history of the railways met a change for, as you say Mark, other critical reasons. Those of economics also dictated that the inefficiency of technically a 150 year old basic design had a far superior twentieth century replacement. Just a great pity the British Railways board were so incompetent at introducing the right diesels and electrics!! ::) ::) ::)
Thanks, but no Mark, I did not know about that particular 47,so thanks for the info! :y :y
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You no doubt know this already Mark, but for the benefit of anyone also interested I have found the below link that gives a great account of Class 47 Falcon:
http://www.class47.co.uk/c47_feature_424.php
;) ;) 8-) 8-)
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
Which gives Mark a maximum tactive effort of 62,000lbs :y :y
Well out rating the tractive effort at 39,667lb at 85% boiler pressure, of the 9F :'( :'( :'(
And hence why the demise of steam came about...... much lower maintenance, better availability, better fuel economy were all the bonus points for diesel (and even more so electric)
The Uk has no choice but to move away from steam.
Did you know they built a class 47 with twin Maybach engines (as per a Western) and electrical drive (look for Brush Class 47 falcon)...sadly scrapped now, it also had a water scoop to use the water troughs on the mainline to replenish the steam heat boilers water supply.
It was a prototype - nearer in design to a 31 - look at the bogies.
It was TOPS class 53 and was numbered 1200 when purchased from Brush by BR.
2800bhp and was better than a Western (srry Western fans)
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You no doubt know this already Mark, but for the benefit of anyone also interested I have found the below link that gives a great account of Class 47 Falcon:
http://www.class47.co.uk/c47_feature_424.php
;) ;) 8-) 8-)
53 not 47 - but it was good
Search for Heljan and Falcon - I want one!
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You no doubt know this already Mark, but for the benefit of anyone also interested I have found the below link that gives a great account of Class 47 Falcon:
http://www.class47.co.uk/c47_feature_424.php
;) ;) 8-) 8-)
I'm not much into trains, but that was quite interesting.
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Am not big into trains either , but have been wathing some of the "World's Biggest" series on Discovey. Especially the Oil Tanker Engines.
http://www.darkroastedblend.com/2006/12/biggest-ships-in-world-part-3.html
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A small 280mm diameter on a 12LDA28C in a 47....but there are 12 of them
Which gives Mark a maximum tactive effort of 62,000lbs :y :y
Well out rating the tractive effort at 39,667lb at 85% boiler pressure, of the 9F :'( :'( :'(
And hence why the demise of steam came about...... much lower maintenance, better availability, better fuel economy were all the bonus points for diesel (and even more so electric)
The Uk has no choice but to move away from steam.
Did you know they built a class 47 with twin Maybach engines (as per a Western) and electrical drive (look for Brush Class 47 falcon)...sadly scrapped now, it also had a water scoop to use the water troughs on the mainline to replenish the steam heat boilers water supply.
It was a prototype - nearer in design to a 31 - look at the bogies.
It was TOPS class 53 and was numbered 1200 when purchased from Brush by BR.
2800bhp and was better than a Western (srry Western fans)
Most were ;D
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For anyone working on their combustion engine pistons, the following is an example of a brand new one for a 9F 2-10-0 steam railway engine:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9FPiston.jpg)
each one of the two cylinders fitted to the 9F's (except the Crosti boiler examples, which are another story!) had a diameter of 20 inches and a stroke of 28 inches, which with all the other specifications of this class gave a tractive effort at 85% of boiler pressure (250lb psi) of 39,667lb's.
This is the 9F, 92212, that is being overhauled on the Mid-Hants (The Watercress Line) Railway at Ropley which will soon have the piston fitted:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9F92212.jpg)
These freight engines formed a very successful class right at the end of steam on BR, with 9F 92220 Evening Star being the last steam engine built by British Railways in 1960 at the Swindon ex-GWR locomotive works. Now preserved it is one of nine, including 92212, when I last checked.
You haven't been to Ropley without popping in for a cup of tea, have you? :o
Then again, I was in Kent all weekend. ;D
Just looking for my mate spud in that picture. He's normally employed welding inside a firebox, though, and when he emerges he's well camouflaged!
Kevin
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For anyone working on their combustion engine pistons, the following is an example of a brand new one for a 9F 2-10-0 steam railway engine:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9FPiston.jpg)
each one of the two cylinders fitted to the 9F's (except the Crosti boiler examples, which are another story!) had a diameter of 20 inches and a stroke of 28 inches, which with all the other specifications of this class gave a tractive effort at 85% of boiler pressure (250lb psi) of 39,667lb's.
This is the 9F, 92212, that is being overhauled on the Mid-Hants (The Watercress Line) Railway at Ropley which will soon have the piston fitted:
(http://i282.photobucket.com/albums/kk247/lizziefreeman/9F92212.jpg)
These freight engines formed a very successful class right at the end of steam on BR, with 9F 92220 Evening Star being the last steam engine built by British Railways in 1960 at the Swindon ex-GWR locomotive works. Now preserved it is one of nine, including 92212, when I last checked.
You haven't been to Ropley without popping in for a cup of tea, have you? :o
Then again, I was in Kent all weekend. ;D
Just looking for my mate spud in that picture. He's normally employed welding inside a firebox, though, and when he emerges he's well camouflaged!
Kevin
No, afraid not Kevin as it is some way for a day's trip, so as a member (since 1977) I keep in touch via the internet and receiving the Mid-Hants News in the post!! 8-) 8-) :D :D :D ;)
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Am not big into trains either , but have been wathing some of the "World's Biggest" series on Discovey. Especially the Oil Tanker Engines.
http://www.darkroastedblend.com/2006/12/biggest-ships-in-world-part-3.html
Wonderfully big, sexy engineering on a grand scale, and those pistons are quite something else Skruntie 8-) 8-) :y :y
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Am not big into trains either , but have been wathing some of the "World's Biggest" series on Discovey. Especially the Oil Tanker Engines.
http://www.darkroastedblend.com/2006/12/biggest-ships-in-world-part-3.html
Wonderfully big, sexy engineering on a grand scale, and those pistons are quite something else Skruntie 8-) 8-) :y :y
Skruntie post pictures of big pistons several times a day! ;D
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I've been piston from heights of great significance on more than one occasion - does that count? :-/ :-/
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I've been piston from heights of great significance on more than one occasion - does that count? :-/ :-/
Groan ::)
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I've been piston from heights of great significance on more than one occasion - does that count? :-/ :-/
Groan ::)
....am trying to appeal to all tastes here PF :P ;D ;D
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
....the two are co-related, Ms Zoom - a lot of men continually try to engineer their way around the relevant sexual parts of whomsoever ;) ;) ;D :-*
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
....the two are co-related, Ms Zoom - a lot of men continually try to engineer their way around the relevant sexual parts of whomsoever ;) ;) ;D :-*
Shame then Zulu that they can't engineer durability and extended effective output!! ::) ::) ::) :D ;)
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
....the two are co-related, Ms Zoom - a lot of men continually try to engineer their way around the relevant sexual parts of whomsoever ;) ;) ;D :-*
Shame then Zulu that they can't engineer durability and extended effective output!! ::) ::) ::) :D ;)
....you've spotted the design flaw then, Ms Zoom? ;) ;) ;D
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
EH!!!!!!!!! and you blame us.
Am not big into trains either , but have been wathing some of the "World's Biggest" series on Discovey. Especially the Oil Tanker Engines.
http://www.darkroastedblend.com/2006/12/biggest-ships-in-world-part-3.html
Wonderfully big, sexy engineering on a grand scale, and those pistons are quite something else Skruntie 8-) 8-) :y :y
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Typical men! ::) ::) ::) ::) ::)
I start a thread on engineering and it turns into one on sexual parts!! ::) ::) ::) ;D ;D ;D ;D ;)
....the two are co-related, Ms Zoom - a lot of men continually try to engineer their way around the relevant sexual parts of whomsoever ;) ;) ;D :-*
Shame then Zulu that they can't engineer durability and extended effective output!! ::) ::) ::) :D ;)
Typical rod and socket interface then! ;D ;D
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http://www.rmweb.co.uk/forum/viewtopic.php?f=12&t=14693&start=0&st=0&sk=t&sd=a