|
|
| Re: [PHOTOS] The R-44 (1469157) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: [PHOTOS] The R-44 |
|
|
Posted by randyo on Sun Mar 11 14:43:05 2018, in response to Re: [PHOTOS] The R-44, posted by Bill from Maspeth on Sat Mar 10 22:10:55 2018. I agree, but the WH R-27s were no bargain either. The IRT’s R-29s also had the same heavy spring tension as the R-30s, but while the R-32s, 33s and 36s had the same controller, the spring tension was a lot less. Another reason for the retention of the GE R-30s was that starting with the R-27s, GE had an all electric transistorized control system while WH still had electro pneumatic group switches. On the R-16s through 22s, GE had a unique system of cooling the resistors from a blower that operated in sync with the motor generator whereas WH cars of those series had air cooled resistors. The blower cooled system of cooling the resistors gave a lot of trouble especially on the R-16s so towards the end of their service life, the GEs were scrapped first. |
|
(There are no responses to this message.)
|
|