Railfan.net Home Railfan Photos ABPR Archives Staff Safari Photos Railfan Links

Railfan.net Forums Railfan.net Forums Railfan.net Forums
Welcome, Guest. Please Sign In or Register. Sep 23rd, 2017, 4:17pm
Categories •  FastIndex •  LongIndex •  Help •  Search •  Members  •  Sign In •  Register


Brisbane Valley Tramway, Australia
   Railfan.net Web Forums
   Model Railroading
   Live Steam and Ride on Scales
(Moderators: moose_the_caboose, Brian Tusin)
   Brisbane Valley Tramway, Australia
« Previous topic | Next topic »
Pages: 1 2 3 4 5 6 7 8 9  ...  31 (last) ReplyReply     EMail TopicEMail Topic   PrintPrint
   Author  Topic: Brisbane Valley Tramway, Australia  (Read 13816 times)
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  easter2011_007.jpg - 44308 Bytes
« Reply #20 on: Jun 19th, 2011, 3:04am »
Quick-Jump   Reply w/Quote   Modify

Nice drawing of the Climax. That bridge looks like Eagle Point, a website that I visit regularly. Now thats what I call hard work, but what a result!
Rob, where's those two blokes you mentioned were helping? They haven't shown up yet Yes that plan is still current, but it's still uncharted territory so exact details are a bit hazy.
The tramways way up North have rails laid in the creeks (The Savannalander still crosses one near Forsayth) and I planned a creek run as part or the drain now under construction.(too risky to use the actual creek} Watch this space!
The waterfall has been named "Rob's Downfall", because he did
This is my snake scaring crew


http://Forums.Railfan.net/Images/LiveSteam/easter2011_007.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
Dan Watson
Historian
Posts: 354
Re: Brisbane Valley Tramway, Australia
 
« Reply #21 on: Jun 19th, 2011, 11:36am »
Quick-Jump   Reply w/Quote   Modify

Thanks for the compliment on the drawing.  My daughter does nice work for not being a railfan  
 
Yes, that is indeed Eagle Point.  The Tracey City branch (where the bridge is located) is my favorite piece of the RR.
 
About "Rob's Downfall", I hope that's not how the waterfall was discovered!  This reminds me of another famous location in Florida.  We'll have to get Bruce the Lesser to explain how "Raykiewicz Landing" by the high trestle on the Buckinham Central got its name  
 
A question, you refer to "trailable facing points".  Is this the same as what we in the U.S. would call a "spring switch"?  Meaning that the points, if aligned for the wrong path, don't have to be moved to the correct position when going through them in the direction where the two tracks converge into one?  (Difficult to put into words without using the terms "facing" or "trailing".)


« Last Edit: Jun 19th, 2011, 12:01pm by Dan Watson » Logged
Dan Watson
Historian
Posts: 354
Re: Brisbane Valley Tramway, Australia
 
« Reply #22 on: Jun 20th, 2011, 8:10am »
Quick-Jump   Reply w/Quote   Modify

Pete,
Regarding the aluminum alloys, I looked up the physical properties of 6061 and 6063 (another common alloy) and here is what I found:
 
6063
Tensile strength (T6, T651)       241       MPa       35000       psi
Yield strength (T6, T651)          214       MPa       31000       psi
Elongation (T6, T651)                 12       %           12       %
Shear strength (T6, T651)        152       MPa       22000       psi
Fatigue strength (T6, T651)       69       MPa       10000       psi
Hardness (T6, T651)                  73       HB          73        HB
 
6061
Tensile strength (T6, T651)       310      MPa       45000       psi
Yield strength (T6, T651)          276      MPa       40000       psi
Elongation (T6, T651)                 12      %           12       %
Shear strength (T6, T651)        207      MPa       30000       psi
Fatigue strength (T6, T651)       97       MPa       14000       psi
Hardness (T6, T651)                  95       HB          95       HB  
 
Quite a big difference between the two alloys, especially the hardness!


« Last Edit: Jun 20th, 2011, 8:15am by Dan Watson » Logged
ac16
TRAINing
View Profile  

Posts: 11
Re: Brisbane Valley Tramway, Australia
 
« Reply #23 on: Jun 20th, 2011, 9:56am »
Quick-Jump   Reply w/Quote   Modify

Hi,
 
well i didnt fall, more a holy heck who put that drop there!
 
Ok basics of trailable facing points (pete is still getting his head around them) is as follows:
 
The points counter weight is locked into Normal running position (eg correct road), however back from the counter weight is a dampening device (a shock absorber if you will) which allows trains from wrong road to pass through the points (pushing the blade across) the indicator shows that the points return back after the last car has passed the points.
 
now the fun part
 
If in an emergancy the wrong road must be taken the counter weight can be unlocked and the points can be set for wrong road... however if a train trys to come through from the correct road and "trail through" the points when set against them to wrong it will not be able to push the blades across (eg the dampener will not activate) and  you are left with a derailed train (that said the indicator shows that the road is against you.
 
What is the point of this? it's to idiot proof the passing loops and ballon loop (eg wrong road can only be activated with a key) to avoid collisions or misadventures. Also it is fairly unique to australia - only other place i know of using a similar system in place is in golly old germany.
 
 
Hope this helps
 
Rob


Logged
pockets
Historian
Posts: 1224
Re: Brisbane Valley Tramway, Australia
 
« Reply #24 on: Jun 20th, 2011, 7:19pm »
Quick-Jump   Reply w/Quote   Modify

Pete,
Although not a current operation, the two-foot gauge Mt. Gretna (1890 - 1914) used a reversing -baloon- loop on the mountain at it's outer end. That's their #15 in my signature photo.
 
Greg B.


Logged


Mechanical engineers build weapons, whereas civil engineers build targets.

When the man at the door said," Alcohol, Tobacco and Firearms", I, naturally assumed it was a delivery!
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  0611_007.jpg - 37484 Bytes
« Reply #25 on: Jul 1st, 2011, 8:11am »
Quick-Jump   Reply w/Quote   Modify

Just a quick update. This is reply #9 tidied up and roadbed base in. One of the two road crossings will go here, probably steel bar rail, welded to reo mesh and cast into concrete. The alloy rail is due any day, but I will need to make a serious bending roller as this stuff don't bend by hand.
What do you guys use for bending?
Pete


http://Forums.Railfan.net/Images/LiveSteam/0611_007.jpg
Click Image to Resize

« Last Edit: Jul 1st, 2011, 8:14am by fred_55 » Logged

Fat Controller of the Brisbane Valley Tramway
Dan Watson
Historian
Posts: 354
Re: Brisbane Valley Tramway, Australia
 
« Reply #26 on: Jul 1st, 2011, 11:47pm »
Quick-Jump   Reply w/Quote   Modify

I don't have a photo, but at Eagle Point we use a slip roll type bender.  The rollers are about as wide as the height of the rail, and machined to fit the profile of the rail.  There is a crank handle on one of the rollers, so the rail can be cranked through.  Once set for the desired radius, a single pass through is all it takes.

Logged
ErieAtlantic7597
Historian
Posts: 5838
Re: Brisbane Valley Tramway, Australia
 
« Reply #27 on: Jul 2nd, 2011, 6:44am »
Quick-Jump   Reply w/Quote   Modify


 
   Hi Pete,
 
   Sorry that I did'nt respond quicker to the huge amount of progress that you've made. HOLY HANNA, your moveing right along,,,,, in a hurry.
 
   As to the "Raykiewicz Falls" story, I'll just have to put it together for all to read and enjoy shortly.
 
   Again, I'm impressed with all of the work that has been done, You'll be running sooner than you think.
 
   Bruce


Logged
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  0711_004.jpg - 36499 Bytes
« Reply #28 on: Jul 4th, 2011, 11:45pm »
Quick-Jump   Reply w/Quote   Modify

Next workshop job is to start making tools (like the roller) and jigs and drilling templates, etc.   Meanwhile I had a delivery. Not sure whether I'm excited or scared . Man that looks like a lifetime of work.

http://Forums.Railfan.net/Images/LiveSteam/0711_004.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  0711_002.jpg - 36566 Bytes
« Reply #29 on: Jul 4th, 2011, 11:53pm »
Quick-Jump   Reply w/Quote   Modify

Even the neighbours came out for a look.    Mom, Dad and 2.4 kids  (0.4 is in the pouch)

http://Forums.Railfan.net/Images/LiveSteam/0711_002.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  0711_005a.jpg - 49021 Bytes
« Reply #30 on: Jul 5th, 2011, 12:04am »
Quick-Jump   Reply w/Quote   Modify

Another new toy thanks to ebay, a laser level. Trying to get my head around the issue of getting down the hill from the house. I've started dumping fill for the embankment and aim to use a trestle for partway. If I can keep the height below 1 meter (3 feet and a bit) then it wont need handrails.  Here's some "Clam Lake" red lines painted on.

http://Forums.Railfan.net/Images/LiveSteam/0711_005a.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
Boulder Creek
Chaser
View Profile   WWW  

Posts: 61
Re: Brisbane Valley Tramway, Australia
 
« Reply #31 on: Jul 6th, 2011, 7:57pm »
Quick-Jump   Reply w/Quote   Modify

G'day Pete,
 
Your railway is looking fantastic! I'll have to bring my loco up for a run one day!
 
Regards,
Dave.


Logged

Visit the Boulder Creek Tramway at: www.smex.net.au/bouldercreek
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  bi-metal_rail.jpg - 58871 Bytes
« Reply #32 on: Jul 15th, 2011, 5:40am »
Quick-Jump   Reply w/Quote   Modify

Dave, when you come up you might like to bring some of your extensive electrics knowledge with you.....and a sledge hammer to knock it into me
 
 
Spent an interesting weekend in northern New South Wales looking at alloy track and a couple of private tracks. Outcome is that I might re-prep the top loop with a larger radius, to minimise chopping out the railhead.  Interestingly the park kiddy ride people worked out that when the railhead wore, they use a circular saw, in a trolley jig,and ally blade, to cut off the inner head back to the web, then fixed a steel strip in. Very ingenious , and has been there for several years now, running 1/2 ton locos.
Pete
 


http://Forums.Railfan.net/Images/LiveSteam/bi-metal_rail.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  jig.jpg - 11153 Bytes
« Reply #33 on: Jul 16th, 2011, 4:22am »
Quick-Jump   Reply w/Quote   Modify

Raining today so started on jigs. This is my method for tie fixing.

http://Forums.Railfan.net/Images/LiveSteam/jig.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  first_tie.jpg - 16117 Bytes
« Reply #34 on: Jul 16th, 2011, 4:24am »
Quick-Jump   Reply w/Quote   Modify

If the final tie gets a golden spike, what does the first one get?
 
This is one of the "offcuts" from the sawmill. Not only is it as hard as nails, but they also docked the lot to length and still only charged  firewood price. I'll soak them after drilling, but I doubt whether much will get in.  
The guys down South spread cow dip on the track once a year....aparently it kills any bugs including termites.
Pete


http://Forums.Railfan.net/Images/LiveSteam/first_tie.jpg
Click Image to Resize

« Last Edit: Jul 16th, 2011, 4:31am by fred_55 » Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  oops.jpg - 28313 Bytes
« Reply #35 on: Jul 16th, 2011, 4:34am »
Quick-Jump   Reply w/Quote   Modify

Not all beer and skittles though.  Got the orange shovel out this afternoon, but something went bang. Guess what my job tonight is

http://Forums.Railfan.net/Images/LiveSteam/oops.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
Dan Watson
Historian
Posts: 354
Re: Brisbane Valley Tramway, Australia
 
« Reply #36 on: Jul 16th, 2011, 5:23pm »
Quick-Jump   Reply w/Quote   Modify

Pete,
I wouldn't worry about rail wear on your track.  The park train probably gets run a LOT, and a private track not so much.  I'm not saying you shouldn't increase the radius of your track, but that should be based on operational requirements, not rail wear concerns.  A couple of things that will help is to increase the gauge a little on the curves, and raise the outside rail somewhat (superelevation).  Others can chime in on how much.


Logged
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  1607_025.jpg - 37855 Bytes
« Reply #37 on: Jul 17th, 2011, 8:14am »
Quick-Jump   Reply w/Quote   Modify

A quick U-tube tutorial on "vertical up welding on 1/2" plate" and we're back in business.
Truth is, I wasn't 100% happy with the driveway crossings, so the new alignment gives another 2 metres on the radius and a better grade crossing.....Bob, the map's out of date now
Meanwhile in the shop, the rail bender is in progress.  Pete


http://Forums.Railfan.net/Images/LiveSteam/1607_025.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  317_2026_2028_Savannahlander_Einasleigh_River_091008.jpg - 91913 Bytes
« Reply #38 on: Jul 31st, 2011, 6:40am »
Quick-Jump   Reply w/Quote   Modify

I found the pic of the train "through the creek" similar to what Dan Watson's Climax picture showed. It was done so that floods would go over the rails. A cheaper alternative to a bridge, on a line where a few days wait was not considered a big deal

http://Forums.Railfan.net/Images/LiveSteam/317_2026_2028_Savannahlander_Einasleigh_River_091008.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
fred_55
Historian
View Profile   WWW  

Posts: 567
Re: Brisbane Valley Tramway, Australia
  1607_050.jpg - 56300 Bytes
« Reply #39 on: Jul 31st, 2011, 6:49am »
Quick-Jump   Reply w/Quote   Modify

Meanwhile I bumble along making tools. I picked up some 25 x 12 (1" x 1/2") steel bar, for turnouts etc, and it looked a bit tough to bend, so the rolling machine got toughened up a bit. This is the frame with rail in place,waitng for the bearings and shafts to be installed. Pretty it ain't
Pete


http://Forums.Railfan.net/Images/LiveSteam/1607_050.jpg
Click Image to Resize

Logged

Fat Controller of the Brisbane Valley Tramway
Pages: 1 2 3 4 5 6 7 8 9  ...  31 (last) ReplyReply     EMail TopicEMail Topic   PrintPrint

« Previous topic | Next topic »