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t_woodroffe

Member since Aug 22, 2006

Last visited Friday, 27 July, 2018

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The weights of the various classes when I weighed them in the 1980s and 1990s were:

A 121 tonnes

C 134 tonnes

G 127 tonnes

N 124 tonnes D43 127 tonnes D 77

X 31-36 114 tonnes

X 37-44 118 tonne ...

The stall current will turn the traction motor into a fuse and is not used for setting locomotive haulage capability. The continuous ratings for the D 43 and D 77 traction motors are taken from EMD tr ...

[quote=woodford][quote]A traction motor is as powerful as the generator/alternator output supplied to it. The continuous rating of a D 43 is 950 amps and a D 77 1050 amps. Some 500 Class 66 locos have ...

A traction motor is as powerful as the generator/alternator output supplied to it. The continuous rating of a D 43 is 950 amps and a D 77 1050 amps. Some 500 Class 66 locos have D 43 traction motors a ...

Wheelspin,

Thank you for the detailed analysis of H 220 curving forces. I hope to delve into calculations books I hold to determine how the VR approached the subject. Vogle and Baldry ring bells an ...

Posted 11 Aug 2017 09:24 in Victoria by t_woodroffe

Woodford,

Could you please provide a link to the Victorian Auditor General's report from the late 1990's that states " an almost total lack of preventative maintenance etc etc"?

I could not find ...

All piston valved DDs, D1s, D2s, D3s and D4s had 8" piston valves.

The original DD (superheater) locomotives were re-classified D2.They had inside admission valves and 19" diameter cylinders. The f ...

All VR D3 locomotives underwent MFE improvement.

I was, at one stage of my career, Motive Power Design Engineer and oversaw the Drawing Office so I take any allegation of drawings being trashed VERY personally.

TW

DERMPAV fitted a retention toilet to RM 58 and built a bespoke decanting facility at Newport some time ago ........

TW

Woodford,

I can't believe this. You reported on the upgrade of the NE line emphasing the veracity of your commentary based on accurate observation and discussion with the protaganists. However, you ...

Hammer blow results from wheels not being rotationally balanced. Locomotives such as the VR R Class and NSWGR 38 Class had full rotational balance so no hammer blow. The imbalance in reciprocating for ...

Woodford,

You are stating the bleeding obvious ......

Andrew Ahlston realised all this in 1947 if not before. The VR were fully aware of the success of DE operation in the USA and were especiall ...

From all accounts (verbal and via memorandum) the valve conjugation arrangement of the H Class gave very little trouble and the locomotive was as reliable so far as its orphan status befitted. The X C ...

Hard call ...... but when you consider R Class fleet availability probably 75% (at any one time covering locos down for overhaul, examination, repair) leaves about 50 locos for service perhaps not so  ...

Woodford, you have done it again. Your twenty twenty hindsight is greatly flawed. Stop considering "administration" decisions in retrospect and put yourself in their shoes in 1947 ........

CME Andr ...

Why are you welding an EMD crankcase during overhaul?

Vic DOO VC worked, when introduced to service (late 1990s), on a time basis of 50 seconds from acknowledgement to audible and flashing light warning, another 10 seconds to penalty brake, and another 5 ...

Posted 16 Jan 2017 17:19 in Victoria by t_woodroffe

Woodford,

The S Class 4-6-2 steam locomotives in SOP service DID NOT regularly run with two firemen Spencer Street to Seymour. Your presumption that the "VR planners" did not know the difference be ...

Nonsense. The DB has trimount bogies with the bolster and bogie bolster centre between the leading and centre axles. The X and 422 bogies have H frame bolsters with the bogie bolster centre (nearly) o ...

Nonsense. The DB has trimount bogies with the bolster and bogie bolster centre between the leading and centre axles. The X and 422 bogies have H frame bolsters with the bogie bolster centre (nearly) o ...

North Melbourne Car and Wagon Shops was described as a "Hospital for Country Trains" in an article printed in the January 1948 VR  Newsletter. The C&W shops undertook repairs, lifts, overhauls and rep ...

North Melbourne Car and Wagon Shops was described as a "Hospital for Country Trains" in an article printed in the January 1948 VR  Newsletter. The C&W shops undertook repairs, lifts, overhauls and rep ...

North Melbourne Car and Wagon Shops was described as a "Hospital for Country Trains" in an article printed in the January 1948 VR  Newsletter. The C&W shops undertook repairs, lifts, overhauls and rep ...

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