Australian Politics Forum - Remnants of Sydney’s Monorail

freediver

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Re: Remnants of Sydney’s Monorail
Reply #90 - Feb 4^th, 2026 at 7:47am

Quote:

Well obviously a girder which is wide enough for a train that has wheels running on both edges to then continue running on two distinct rails is not a monorail

Every monorail on earth fits that definition. It is entirely arbitrary. It is a monorail, by definition, if it does run on one rail, not if it is impossible for someone on the internet to imagine splitting the rail into two.

It seems like with every single post, you change your definition of what is a monorail. Yet you also claim to understand the technical details.

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #91 - Feb 4^th, 2026 at 2:29pm

freediver wrote on Feb 4^th, 2026 at 7:47am:

Quote:

Well obviously a girder which is wide enough for a train that has wheels running on both edges to then continue running on two distinct rails is not a monorail

Every monorail on earth fits that definition. It is entirely arbitrary. It is a monorail, by definition, if it does run on one rail, not if it is impossible for someone on the internet to imagine splitting the rail into two.

It seems like with every single post, you change your definition of what is a monorail. Yet you also claim to understand the technical details.

I do understand the technical detail.
I also understand English.
A girder is not a rail, so all the trains that run on girders are not running on a rail, monorails run on a single rail.
Advertising and salesmanship call girders rails and the unthinking sheep follow suit.

A proper description would be ‘’Monogirders’’ but that doesn’t sound as catchy.

How does this sound,
‘’The Australian pioneers built miles of post and girder fences’’,
Sound stupid?

Rails and girders are two different things . . . . look in a dictionary.

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freediver

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Re: Remnants of Sydney’s Monorail
Reply #92 - Feb 4^th, 2026 at 2:35pm

Quote:

A girder is not a rail

Another post in which your inability to follow basic logic is pointed out. Another post in which you change your argument again. Do let us know when you have made up your mind what a monorail is. I am not sure why you seem to enjoy going round in pointless circles. You have not been able to explain why you care so much about this.

Quote:

Sound stupid?

Yes you do.

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #93 - Feb 4^th, 2026 at 2:35pm

Gnads wrote on Feb 3^rd, 2026 at 6:20pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 1:45pm:

greggerypeccary wrote on Feb 3^rd, 2026 at 1:27pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 9:20am:

Here’s anotherie clearly running on two rails

Two tracks, on top of one rail.

No, two rails on a girder; in railway parlance the track is the supporting medium and the rails, one rail to a monorail track, 2 rails for a conventional track, 3 rails for rack railways and some electrified systems plus more for some oddities.

Don't go trying to tell me railway parlance - I worked 46 years in Rail - 10yrs as a Porter & Shunter - 13 yrs as a Guard & Drivers Assistant & 23 yrs as a Locomotive Freight & EMU & ICE driver.

You're wrong about Straddle Beam monorail trains, they run on top of a single girder - their wheels drive on a flat surface atop the girder. The width of the drive wheels & the marks they leave on the concrete doesn't matter - those wheels are not running on rails.

Until they get into the maintenance facility where, like the Sydney Amusement Ride they run on two rails to aid maintenance work.

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Gnads

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Re: Remnants of Sydney’s Monorail
Reply #94 - Yesterday at 8:16am

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 6:59pm:

Gnads wrote on Feb 3^rd, 2026 at 6:42pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 4:34pm:

greggerypeccary wrote on Feb 3^rd, 2026 at 2:01pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 1:45pm:

greggerypeccary wrote on Feb 3^rd, 2026 at 1:27pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 9:20am:

Here’s anotherie clearly running on two rails

Two tracks, on top of one rail.

No, two rails on a girder; in railway parlance the track is the supporting medium and the rails, one rail to a monorail track, 2 rails for a conventional track, 3 rails for rack railways and some electrified systems plus more for some oddities.

The girder is the "rail".

Sydney's monorail ran on one girder/beam.

Except in the depot where it ran on two rails, proving, as I said, that it was not a monorail.

No it did not. They were 2 flat surfaces that although separated were the same width (37 inches) as the single beam on track.

How they put them into the depot is irrelevant to their operation as a Straddle Beam Monorail on track.

Did you ever realise that all railway rails are flat on top, in fact wooden railway rails were very flat except for the railway that used trees for rails and left them round.

Of course the rails in the depot were the same gauge as the running surfaces on the beams, otherwise the trains would have fallen off.

Do you know when the current millennium started or were you brainwashed on that too?

As an aside, what do you think of a government that would licence a supposed passenger carrier as an amusement ride and keep the fact quiet so as not to adversely affect the paying patronage?

Now you're just being ridiculous. You want to draw out the dimensions of a full Class A 68kg rail?

Of course there is a top of the rail but for your information it's not flat it is slightly rounded.

So are wagon wheels & locomotive wheels. Flanges are angled/bevelled.

What happens to wagon wheels if they're excessively skidded? They get flat spots/burn marks that have machined out..... the same for the top of rails.

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freediver

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Re: Remnants of Sydney’s Monorail
Reply #95 - Yesterday at 8:27am

Sir Eoin O Fada wrote on Feb 4^th, 2026 at 2:35pm:

Until they get into the maintenance facility where, like the Sydney Amusement Ride they run on two rails to aid maintenance work.

Changed your mind again about what makes it a monorail?

Quote:

A girder is not a rail, so all the trains that run on girders

They run on rails, not girders. Again, you need to consult a dictionary. Or at least explain why you have your panties in a bunch about a topic you do not comprehend the technical details of. A girder can be a rail. I know a few people who have used rails for girders in DIY construction. Then perhaps make up your mind about what you think a monorail is so you are not changing your argument with every post.

https://www.merriam-webster.com/dictionary/girder

a horizontal main structural member (as in a building or bridge) that supports vertical loads and that consists of a single piece or of more than one piece bound together

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« Last Edit: Yesterday at 8:49am by freediver »

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #96 - Yesterday at 12:09pm

Gnads wrote Yesterday at 8:16am:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 6:59pm:

Gnads wrote on Feb 3^rd, 2026 at 6:42pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 4:34pm:

greggerypeccary wrote on Feb 3^rd, 2026 at 2:01pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 1:45pm:

greggerypeccary wrote on Feb 3^rd, 2026 at 1:27pm:

Sir Eoin O Fada wrote on Feb 3^rd, 2026 at 9:20am:

Here’s anotherie clearly running on two rails

Two tracks, on top of one rail.

No, two rails on a girder; in railway parlance the track is the supporting medium and the rails, one rail to a monorail track, 2 rails for a conventional track, 3 rails for rack railways and some electrified systems plus more for some oddities.

The girder is the "rail".

Sydney's monorail ran on one girder/beam.

Except in the depot where it ran on two rails, proving, as I said, that it was not a monorail.

No it did not. They were 2 flat surfaces that although separated were the same width (37 inches) as the single beam on track.

How they put them into the depot is irrelevant to their operation as a Straddle Beam Monorail on track.

Did you ever realise that all railway rails are flat on top, in fact wooden railway rails were very flat except for the railway that used trees for rails and left them round.

Of course the rails in the depot were the same gauge as the running surfaces on the beams, otherwise the trains would have fallen off.

Do you know when the current millennium started or were you brainwashed on that too?

As an aside, what do you think of a government that would licence a supposed passenger carrier as an amusement ride and keep the fact quiet so as not to adversely affect the paying patronage?

Now you're just being ridiculous. You want to draw out the dimensions of a full Class A 68kg rail?

Of course there is a top of the rail but for your information it's not flat it is slightly rounded.

So are wagon wheels & locomotive wheels. Flanges are angled/bevelled.

What happens to wagon wheels if they're excessively skidded? They get flat spots/burn marks that have machined out..... the same for the top of rails.

That’s a new rail, most rails are flat on top after some use.

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #97 - Yesterday at 12:11pm

freediver wrote Yesterday at 8:27am:

Sir Eoin O Fada wrote on Feb 4^th, 2026 at 2:35pm:

Until they get into the maintenance facility where, like the Sydney Amusement Ride they run on two rails to aid maintenance work.

Changed your mind again about what makes it a monorail?

Quote:

A girder is not a rail, so all the trains that run on girders

They run on rails, not girders. Again, you need to consult a dictionary. Or at least explain why you have your panties in a bunch about a topic you do not comprehend the technical details of. A girder can be a rail. I know a few people who have used rails for girders in DIY construction. Then perhaps make up your mind about what you think a monorail is so you are not changing your argument with every post.

https://www.merriam-webster.com/dictionary/girder

a horizontal main structural member (as in a building or bridge) that supports vertical loads and that consists of a single piece or of more than one piece bound together

Using rails in place of girders doesn’t make a girder a rail.

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Sir Eoin O Fada Gold Member Offline Australian Politics Posts: 3457 New England, NSW Gender:	Re: Remnants of Sydney’s Monorail Reply #98 - Yesterday at 12:15pm And I know what a monorail is
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freediver

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Re: Remnants of Sydney’s Monorail
Reply #99 - Yesterday at 12:34pm

Sir Eoin O Fada wrote Yesterday at 12:11pm:

freediver wrote Yesterday at 8:27am:

Sir Eoin O Fada wrote on Feb 4^th, 2026 at 2:35pm:

Until they get into the maintenance facility where, like the Sydney Amusement Ride they run on two rails to aid maintenance work.

Changed your mind again about what makes it a monorail?

Quote:

A girder is not a rail, so all the trains that run on girders

They run on rails, not girders. Again, you need to consult a dictionary. Or at least explain why you have your panties in a bunch about a topic you do not comprehend the technical details of. A girder can be a rail. I know a few people who have used rails for girders in DIY construction. Then perhaps make up your mind about what you think a monorail is so you are not changing your argument with every post.

https://www.merriam-webster.com/dictionary/girder

a horizontal main structural member (as in a building or bridge) that supports vertical loads and that consists of a single piece or of more than one piece bound together

Using rails in place of girders doesn’t make a girder a rail.

You are confused again SEOF. No-one said it does. Would you like to have another go at figuring out what is being said?

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #100 - Yesterday at 1:16pm

freediver wrote Yesterday at 12:34pm:

Sir Eoin O Fada wrote Yesterday at 12:11pm:

freediver wrote Yesterday at 8:27am:

Sir Eoin O Fada wrote on Feb 4^th, 2026 at 2:35pm:

Until they get into the maintenance facility where, like the Sydney Amusement Ride they run on two rails to aid maintenance work.

Changed your mind again about what makes it a monorail?

Quote:

A girder is not a rail, so all the trains that run on girders

They run on rails, not girders. Again, you need to consult a dictionary. Or at least explain why you have your panties in a bunch about a topic you do not comprehend the technical details of. A girder can be a rail. I know a few people who have used rails for girders in DIY construction. Then perhaps make up your mind about what you think a monorail is so you are not changing your argument with every post.

https://www.merriam-webster.com/dictionary/girder

a horizontal main structural member (as in a building or bridge) that supports vertical loads and that consists of a single piece or of more than one piece bound together

Using rails in place of girders doesn’t make a girder a rail.

You are confused again SEOF. No-one said it does. Would you like to have another go at figuring out what is being said?

Funny, I seemed to get the impression that girders have, erroneously, been considered to be rails from the start, hasn’t the mono beam been said to be a rail?

No comment on the genuine monorail that I pictured?

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freediver

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Re: Remnants of Sydney’s Monorail
Reply #101 - Yesterday at 1:40pm

Quote:

hasn’t the mono beam been said to be a rail?

The monorail has been called a rail. Because it is a rail. A monorail. Your confusion, not ours.

Again, let us know when you have made up your mind what a monorail is. It is hard to explain to you why are you wrong if you are wrong for a different reason with every post. Or rather it is easy, for everyone except you. May I suggest starting with a dictionary, seeing as you do not know what a girder is.

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Frank

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Re: Remnants of Sydney’s Monorail
Reply #102 - Yesterday at 2:59pm

The primary difference between a rail and a girder lies in their function and scale: a rail is a specialized steel profile for guiding wheels, while a girder is a large structural beam used to support heavy loads in buildings or bridges. While both can be made of steel and often share an "I" or "H" shape for strength, they are used for different engineering purposes.Deep Thought

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Sir Eoin O Fada

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Re: Remnants of Sydney’s Monorail
Reply #103 - Yesterday at 3:13pm

freediver wrote Yesterday at 1:40pm:

Quote:

hasn’t the mono beam been said to be a rail?

The monorail has been called a rail. Because it is a rail. A monorail. Your confusion, not ours.

Again, let us know when you have made up your mind what a monorail is. It is hard to explain to you why are you wrong if you are wrong for a different reason with every post. Or rather it is easy, for everyone except you. May I suggest starting with a dictionary, seeing as you do not know what a girder is.

I’ve made up my mind, a monorail is a single rail, as in

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freediver

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Re: Remnants of Sydney’s Monorail
Reply #104 - Yesterday at 3:51pm

Sir Eoin O Fada wrote Yesterday at 3:13pm:

freediver wrote Yesterday at 1:40pm:

Quote:

hasn’t the mono beam been said to be a rail?

The monorail has been called a rail. Because it is a rail. A monorail. Your confusion, not ours.

Again, let us know when you have made up your mind what a monorail is. It is hard to explain to you why are you wrong if you are wrong for a different reason with every post. Or rather it is easy, for everyone except you. May I suggest starting with a dictionary, seeing as you do not know what a girder is.

I’ve made up my mind, a monorail is a single rail, as in

Just like all the other pictures of monorails that have been posted. Except they aren't a stupid design. It doesn't have to look like a bicycle to be running on a single rail. It would be simple enough to design something that runs on that rail in your picture, but due to your confusion about what is a rail, you would insist it is not a monorail. For example if you saw two wear marks on top (but not on the side, because they don't count in your mind for some arbitrary reason). Probably with some stupid argument that has nothing to do with whether it runs on a single rail, like for example if someone on the internet saw it on two rails in a workshop.

You could also put your idiotic flywheel bicycle on any of the monorails that other people have posted, and make it look just as stupid.

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« Last Edit: Yesterday at 4:18pm by freediver »

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