South Australian Railways

720 Class Steam Locomotive

5' 3" Gauge

2-8-4

 

This book contains 21 of the main assembly drawings for the 720 class SAR steam locomotive. They have been produced at A2 size (594mm X 420mm) so they are easy to handle but are big enough to be very clear. The drawings have been reproduced on a high quality wide format laser printer using 80gsm bond paper and are stapled down the left hand short side. This book offers detailed engineering information at a fraction of the cost of full size prints. This book gives enough detail to satisfy the serious model makers in any scale and equally is a fascinating look at some historic railway engineering. A complete list of contents and thumbnail images of each page can be seen below.

Page 1

PIPE ARRANGEMENT (720 ENGINE)

Page 2

FIRE BOX ARRANGEMENT

Page 3

FIRE BOX ARRANGEMENT 2

Page 4

SMOKEBOX ARRANGEMENT

Page 5

ARRANGEMENT OF CYCLONE FRONT END FOR EXTENDED SMOKEBOX

Page 6

ARRANGEMENT OF STEAM STAND

Page 7

BACK PLATE MOUNTINGS

Page 8

CLOTHING ARRANGEMENT

Page 9

INTEGRAL FRAME FOR ENGINE

Page 10

FRAME ARRANGEMENT

Page 11

LEADING TRUCK ARRANGEMENT

Page 12

ARRANGEMENT OF BOOSTER

Page 13

BOOSTER PIPE ARRANGEMENT

Page 14

REARRANGEMENT OF PIPES TO SUIT BOOSTER SLIP CONTROL GEAR

Page 15

ARRANGEMENT OF WESTINGHOUSE BRAKE PIPES

Page 16

PLATFORM & HANDLE ARRANGEMENT

Page 17

ARRANGEMENT OF CAB FLOOR & WOOD PLATFORM

Page 18

CAB ARRANGEMENT

Page 19

TENDER FRAME & DETAILS

Page 20

BOGIE ARRANGEMENT – 720 CLASS TENDER

Page 21

TENDER TANK

 

 

At Inprotrans P/L we hold build drawings for many classes of South Australian Railway and Commonwealth Railway vehicles. They include steam and diesel electric locomotives, rail cars, passenger cars and freight rolling stock.

To maintain a library of approximately 200,000 drawings is very expensive and most of this financial burden is met by Inprotrans. We have a strong belief that the ex State and Federal technical railway drawings should remain accessible to all people and have struggled at many times over the years to keep this vision alive. We are under increasing pressure to give up and although the rail industry clients within Australia are happy to be a part of a user pay system it is only on a needs basis.

How do you put a price on a copy of a drawing when you have housed and maintained the drawing for 5 years between requests? If the true cost was charged when a drawing was required the cost would be prohibitive as reverse engineering or new engineering would be comparable in price. As we can't ask for full cost recovery we have set a reasonable charge for copies of drawings and underwrite the housing of the drawings with the retail aspect of our business. It is easy to see that this is not sustainable so we have embarked on a program of creating high quality scans to replace the original drawings and verify each drawing for usability from an engineering perspective. This will allow access to the drawings with much lower overheads and we hope will eventually be self sustaining. As part of this streamlining we are able to consider the needs of model makers and hobbyists and produce sets of drawings of interest at a reduced size and therefore reduced cost.

By grouping common drawings in sets we can reduce any time component of retrieval and offer usable interesting drawings at an affordable price.