F units and diaphragms.

Discussion in 'HO Scale Model Trains' started by bnrails, Oct 17, 2008.

  1. bnrails

    bnrails Green is the way to go


    I have a questions about diaphragms.
    My roster counts 13 EMD F units. 4 BN, 4 NP and 5 GN units.
    Do all F units have diaphragms, passenger and freight locos?
    I read elsewhere the diaphragms have been dismantled after a couple of years.

  2. cajon

    cajon Member

  3. TinGoat

    TinGoat Ignorant know it all

    Coach Yard Diaphragms.

    For full body width Diaphragms, take a look at The Coach Yard.
  4. cajon

    cajon Member

    Don't think full body width diaphragms were used on locomotives, just on some pax cars by a few RRs.
  5. ZeldaTheSwordsman

    ZeldaTheSwordsman Thomas Modeler

    Diaphragms, or connecting corridors, were used on passenger trains consisting of central-corridor coaches. They allowed people to safely walk from coach to coach, and if the engine was designed to allow it, from the coaches to the engine.
  6. cajon

    cajon Member

    Diaphragms are/were used between any type of pax cars (e.g. lounge, dinner, sleeper, coach, baggage, RPO) not just between coaches. If the cars & locomotives were on the same level then trainman could walk between engine & cars thru the diaphragms. It doesn't work anymore between modern locomotives & bi-level cars.
  7. diburning

    diburning Member

    Not with superliners at least. With MBTA's Kawasaki Bilevels or GO Transit's Lozenge cars, the diaphragm is still in the same place as the single level coaches so that it makes it easier to have mixed consists.
  8. wjstix

    wjstix Member

    Andy was pointing out that only passenger cars used full-width diaphragms where the diaphragms were as side as the car body (and then only for a short period in the streamliner era). F and E units used narrower diaphragms which were just a touch wider than the doors between the units - like the American Limited ones.
  9. cajon

    cajon Member

    Amtrak Superliners have high end doors requiring a transition car (usually occupied by the train C&E and OBS crews) that has a single level door on one end to allow access to the baggage car.
  10. ZeldaTheSwordsman

    ZeldaTheSwordsman Thomas Modeler

    As a Thomas fan, I use Brit terminology. In Britain, "Coach" is a generic term for any sort of passenger car.

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