Recent content by Doubleyellow

https://www.legislation.gov.uk/uksi/2011/3066/contents

Ooh thanks marshlinker (I was going a bit by "what i was told" as a youngster), I didn't know about the specific differences between the marine and rail versions, or the seawater heat exchanger - was it used/needed for both primary and secondary cooling circuits? I was trying to say I thought...

Old Voith cooler group used to get fouled up (with crinkly radiator fins), even before MTU repower we (at Brush at the time) designed a new cooler group (with parallel flat fins for less fouling (though admittedly more fragile)). The classic Valenta and VP185 were basically marine (read boat)...

The HEX class 387 uses the right hand side of the ETCS DMI for TPWS button/ indicators and sunflower in SN mode but the retained h/w button/indicators and sunflower during ETCS isolated/ standalone ETCS running. Crossrail (Elizabeth line CL345) uses a TCMS based DMI for ETCS (including the TPWS...

You're right found this image here: https://www.therailwayhub.co.uk/72586/a-look-back-at-810-aurora-units-entering-service/ And circled the button/ indicators and sunflower in red

A hardware or software fault resulting in an unintended/ spurious (i.e. not designed) brake application

from RAIB latest (https://www.gov.uk/government/news/collision-between-two-passenger-trains-near-elstow) : "The train had come to a stop unexpectedly because a fault had developed with the Automatic Warning System (AWS) equipment fitted to it, which caused the brakes to apply." Either AWS...

Losing "comms" to your DMI might trigger a "safety" (apply brakes) response from the AWS?

ETCS Level 2 (L2) (which is where we get the most safety benefit) is a "continuous" protection system, the line has to be equipped with it (balises which confirm position and speed through distance travelled) and there needs to be a radio block centre (RBC) for the onboard kit on the trains to...

On newer trains the AWS/TPWS DMI (TI/F, BRR, etc) "indicator/buttons" are often presented on a TCMS based screen.

If the onboard AWS/TPWS system "knows" it is faulty (detects itself) it will display a Fault indication (sometimes combined with temporary isolation indication). But "fault" detected by the driver could be a discrepancy between what they see and what the AWS does, eg if you pass magnets for a...

ETCS can only advise the driver when to brake, or choose when to demand a brake itself, based on the brake rate its told that it can expect from teh train (i.e. based on its configured data). Driving slower for low adhesion doesn't necessarily "help" with ETCS protection (if you haven't told the...

Don't most signal protecting points have TSS? Or was it FRL for the shunt move?