So does anyone know what kind of modifications will be done to the Type 7s? Will they receive AC traction motors?
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Type 7 Overhaul Program
- Discussion relating to commuter rail, light rail, and subway operations of the MBTA.
orange1234 wrote:So does anyone know what kind of modifications will be done to the Type 7s? Will they receive AC traction motors?Cool idea, I just love hearing the new cars whine.
Bring double deckers to the north side!
orange1234 wrote:So does anyone know what kind of modifications will be done to the Type 7s? Will they receive AC traction motors?Unlikely. That would require the installation of an inverter, which would almost certainly require other stuff be moved around to make room for it. The benefits of AC traction over DC are too marginal to justify the cost of replacing the entire propulsion system, especially with the amount of debt the T already has.
"The destination of this train is [BEEP BEEP]" -announcement on an Ashmont train.
Plus the propulsion system is doing very good, so theres no need to replace them. Good ol' PCC technology.
Off-topic, but how much debt does the T have?
Off-topic, but how much debt does the T have?
type 7 3704 wrote:Plus the propulsion system is doing very good, so theres no need to replace them. Good ol' PCC technology.Type 7s do not use PCC technology. They are as modern as the LRVs were, the big difference is that troublesome components were re-engineered to make it more reliable. Foot pedal control does not mean PCC control.
Off-topic, but how much debt does the T have?
The MBTA debt rivals that of the government... Only difference is that they aren't allowed to print money.
Gerry. STM/BSRA
The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
Gerry6309 wrote:I thought a lot of the Type 7 components were derived from their PCC counterparts (hence the greater reliability), whereas everything on the Boeings was a brand new design.type 7 3704 wrote:Plus the propulsion system is doing very good, so theres no need to replace them. Good ol' PCC technology.Type 7s do not use PCC technology. They are as modern as the LRVs were, the big difference is that troublesome components were re-engineered to make it more reliable. Foot pedal control does not mean PCC control.
Off-topic, but how much debt does the T have?
"The destination of this train is [BEEP BEEP]" -announcement on an Ashmont train.
Just to reel this thing back in, could somebody please try to catch a photo of the newly repainted Type 7 ?
I for one an curious to see if they are going with that previously seen Green and Yellow experimental design, if it is a return to something more similar to what the LRV's were wrapped in.
I for one an curious to see if they are going with that previously seen Green and Yellow experimental design, if it is a return to something more similar to what the LRV's were wrapped in.
Guilford Guy wrote:Does that mean there may be kinki signs up for grabs...What did they do with the Kinki signs that were on the trains that already had their signs changed to LED?
RailFan2103 wrote:They're not Kinki signs. They're roll signs. The roll signs did not change to LED. They were replaced with LCD signs.Guilford Guy wrote:Does that mean there may be kinki signs up for grabs...What did they do with the Kinki signs that were on the trains that already had their signs changed to LED?