HST fans

[buckett]

I have the following Hornby HSTs:

 

43 002/43 003 BR HST R3403

43 017/43 192 FGW HST R2812

43 172/43 154 FGW HST R3379

43 070/43 036 FGW HST R3478

43 187/43 188 GWR HST R3510

 

The top pair is original BR blue & yellow whilst the last pair is GWR green. All others are FGW blue.

 

I have just introduced an incline to our layout which an eight car set will not climb so I am motorising all the dummy cars and this works perfectly. To start this process I purchased a Hornby Virgin HST R3390 (power cars 43 311 and dummy 43 114) and notice that it has a different roof fan configuration (two fans instead of one). I have tried searching online to find a reason as to why this is the case ..can anyone help and are the single fan and associate grille design correct for FGW/GWR HSTs?

 

Thanks

[FPH 603]

I have the following Hornby HSTs:

 

43 002/43 003 BR HST R3403

43 017/43 192 FGW HST R2812

43 172/43 154 FGW HST R3379

43 070/43 036 FGW HST R3478

43 187/43 188 GWR HST R3510

 

The top pair is original BR blue & yellow whilst the last pair is GWR green. All others are FGW blue.

 

I have just introduced an incline to our layout which an eight car set will not climb so I am motorising all the dummy cars and this works perfectly. To start this process I purchased a Hornby Virgin HST R3390 (power cars 43 311 and dummy 43 114) and notice that it has a different roof fan configuration (two fans instead of one). I have tried searching online to find a reason as to why this is the case ..can anyone help and are the single fan and associate grille design correct for FGW/GWR HSTs?

 

Thanks

I don't know for sure but this may or may not be for MTU engine fitted HST's to replace the original Paxman Valenta vehicles. Perhaps this is for extra ventilation?

[seraphim]

East Coast HST power cars now have (following MTU conversion) a Brush cooler group - I believe that this has the roof cowl divided by a tranverse bar. Great Western cars have a Voith group, which has a longitudinal bar. So, 43311/43114 - which are East Coast cars - should have a different configuration to FGW cars.

 

43002/003 are (presumably) representing the Valenta era, in which case they will have either a Serck or Marston group - and I'm sorry, I honestly cannot recall what either looked like from above.

[buckett]

East Coast HST power cars now have (following MTU conversion) a Brush cooler group - I believe that this has the roof cowl divided by a tranverse bar. Great Western cars have a Voith group, which has a longitudinal bar. So, 43311/43114 - which are East Coast cars - should have a different configuration to FGW cars.

 

43002/003 are (presumably) representing the Valenta era, in which case they will have either a Serck or Marston group - and I'm sorry, I honestly cannot recall what either looked like from above.

Thank you for taking the time to post this information - that makes good sense. So I will ensure that all my BR/FGW/GWR power cars retain a single fan. 

[royaloak]

Cross Country ones also have the (superior) Brush cooler groups, its only GWR ones which have the Voith sets.

[45125]

East Coast HST power cars now have (following MTU conversion) a Brush cooler group - I believe that this has the roof cowl divided by a tranverse bar. Great Western cars have a Voith group, which has a longitudinal bar. So, 43311/43114 - which are East Coast cars - should have a different configuration to FGW cars.

 

43002/003 are (presumably) representing the Valenta era, in which case they will have either a Serck or Marston group - and I'm sorry, I honestly cannot recall what either looked like from above.

 

The *rappy Marston groups had the lateral slats on the group where as the Serck group had the transverse slats.