Draughting arrangements for Bulleid Pacifics including the Giesl ejector

On the crosswind issue: I wonder whether the fact that the South West mainline in particular was laid basically along the line of the prevailing wind meant in practice it wasn’t a significant issue - maybe putting the locos on the ECML of WCML that run more at right angles to the prevailing wind would have been more problematic?

(This might be better discussed in the dedicated 35011 thread).

Tom

 

But black fives don't have oversized chimneys that result in lower velocity steam/smoke at the chimney lip - I'm getting that Déjà vu feeling again . . . . nurse I need help!

 

Sounds like the rebuilts were overdraughted. Good luck to Steve Rapley in sorting this out.

 

Ribblehead viaduct might be interesting at times.

 

Please, don't! Draughting and vision impairment are interconnected this time!
Kind regards
Jos

 

They're necessary for an air-smoothed MN...

 

They had the same orifices as the original, the size Jos gave is correct for original and rebuilt. The exhaust was the part which changed fundamentally.

 

Class 5's have quite a ' sharp' draught, this is particularly evident on the Caprotti ones, so much so that a double chimney was already on the drawing board - perhaps with that on they would have needed smoke deflectors too...

 

Blue's far more aerodynamic than green. C'mon .... Mallard and XP64 proved that years ago. Why else do you suppose BR went for it big time?

 

Everyone knows that putting stripes on makes things go faster as well...

 

Got to be Post war Malachite green with yellow lines and sunshine lettering

 

Could you imagine 21C11* crossing Grosvenor Bridge, trailing a rake of Pullmans, complete with Golden Arrow insignia?

*If what I've read is correct, 21C11/35011 was a Nine Elms loco in it's early years and was one which never carried BR 'Express Blue'

 

Correct, it was one of three MNs to not be painted blue

 

If you were really keen, you would make it tilt when it goes round curves.

 

I fear that the timescale for GSN is likely to extend beyond my lifetime. I have controbuted small amounts to several projects but substantial amounts only to projects that have since been completed or that can reasonably be expected to be completed within a few years.

 

Forget about superelevation, get up a decent rate of knots and it most certainly will ...... or you could go for this:

[Image credited to en.wikipedia.org for reasons which escape me]