N&W GP9?

[NW Modeling List]

Those are the visible indications of the steam generator installation,  
necessary on passenger locomotives such as the N&W Redbird GP-9's to provide  
steam for train heating (and for some types of air conditioning systems,  
cooling.  Not on N&W though, I don't believe).  See 
_http://en.wikipedia.org/wiki/Steam_generator_(railroad)_ 
(http://en.wikipedia.org/wiki/Steam_generator_(railroad))  for  more general information and some further references.  On 
diesels, the  boiler in the steam generator burned diesel fuel.  The piece 
to the left is  the exhaust for this.  Of course, the combustion required 
air, and the  piece on the right is the (screened) air intake.
 
Actually, one piece is missing.  I'm not sure what it's function is  and 
couldn't find details in my quick search this morning.  See the  illustration 
in
_http://www.ebay.com/itm/Details-West-HO-118-Steam-Generator-Set-/3803808471
38?pt=Model_RR_Trains&hash=item5890771c22#ht_500wt_922_ 
(http://www.ebay.com/itm/Details-West-HO-118-Steam-Generator-Set-/380380847138?pt=Model_RR_Train
s&hash=item5890771c22#ht_500wt_922) .   The Details West #118 is, I 
believe, accurate for a GP-9 in HO.  It's a  current production set and readily 
available.  Apparently Atlas has  some O-scale parts for the installation.  
 
Sorry I couldn't provide more definitive information but this should get  
you started.
 
Dave Phelps
 
 
In a message dated 12/5/2011 6:52:11 A.M. Eastern Standard Time,  
nw-modeling-list at nwhs.org writes:



Does anyone  what are the two details on top of the passenger GP9 short 
hoods? Attached is  a model of them.  Who makes them in HO and O  Scale?Stephen 
Rineair





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