Question: What does squadron service mean?

Discussion in 'Traction & Rolling Stock' started by cyclewheel, 4 Jan 2015.

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  1. cyclewheel

    cyclewheel New Member

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    Heard this term, and I'm not really sure what it means. Can somebody explain?

    Sorry if this isn't the right place for this.
     
  2. swt_passenger

    swt_passenger Veteran Member

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    It's 'aircraft based' slang, really just means the majority of the ordered fleet (or sub-fleet) is in normal timetabled service right across the intended routes, and I'd say using normally rostered train crew.

    Hence the opposite situation is that you might have a couple of early arrivals running around a subset of the network being used for initial training of staff, with only a small number of staff qualified to operate them.

    As an example, you'd probably say that both the 458/5s and the 387s were not yet in 'squadron service'...

    Oh, and welcome to the forums - this probably is the most suitable subforum for this type of question anyway.
     
    Last edited: 4 Jan 2015
  3. cyclewheel

    cyclewheel New Member

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    Thanks for your help!
     
  4. cjmillsnun

    cjmillsnun Established Member

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    Hmmm in squadron service in the RAF means in active service.

    In that context both the 458/5s and the 387s are in squadron service (they carry passengers).
     
  5. GrimsbyPacer

    GrimsbyPacer Established Member

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    I am not sure if this is relevent but the unbuilt production design of the Advanced Passenger Train was to be called APT-S with Squadron being the ''s''.
     
  6. DarloRich

    DarloRich Veteran Member

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    Are you sure about that?
     
  7. sprinterguy

    sprinterguy Established Member

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    Yes, GrimsbyPacer is correct, that was certainly the case.
     
  8. Bletchleyite

    Bletchleyite Veteran Member

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    Yes, I recall that as well (APT-P was Prototype, not Passenger).

    I suspect APT-S would have had the power cars at the ends (or at one end) to avoid the impractical block in the middle.

    Neil
     
  9. DarloRich

    DarloRich Veteran Member

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    I thought it was ATP - Service

    you learn something new every day.
     
  10. Murph

    Murph Member

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    There's also APT-U (better known as the IC225). I have no idea what the "U" stood for. "Untilting", maybe?
     
  11. GrimsbyPacer

    GrimsbyPacer Established Member

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    No, the ''U'' in APT-U meant Ultimate. The Experimental is ''E'' also.

    Edit: an APT-POP also existed, it was an unpowered 3-car test set.
     
    Last edited: 7 Jan 2015
  12. sprinterguy

    sprinterguy Established Member

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    Going off topic somewhat, but you're correct. APT-S would have had a power car at one end of the train, nine passenger trailers and a driving van trailer (idenitifed as such as early as 1981) at the other end; not dissimilar to the formation of the IC225s, but retaining vehicle articulation and tilt.

    The APT-U design re-introduced two power cars, one at each end of the train sandwiching ten passenger trailers, but also dropped vehicle articulation.
     
  13. Domh245

    Domh245 Established Member

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  14. Bletchleyite

    Bletchleyite Veteran Member

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  15. robert7111a

    robert7111a Established Member

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    Wasn't APT-E given to the original gas-turbine unit (with the "E" standing for Experimental) and APT-P given to the production units (with the "P" standing for Production)
     
  16. MarkyT

    MarkyT Established Member

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  17. cjmillsnun

    cjmillsnun Established Member

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    P stood for prototype. They certainly weren't production, nor were they ever intended to be.
     
  18. TorqueOfTheDevil

    TorqueOfTheDevil Member

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    Not quite - it means in large-scale use (ie whole squadrons using a particular aircraft type day to day to achieve a task - hence the name). Because of the length of time taken to conduct tests and trials on new kinds of aircraft and then train people on them, there can be periods of years where a few prototypes are in 'active service' but not in 'squadron service'. Right now that could be said of the Wildcat - admittedly that is an Army and Navy machine, not RAF, but the principle stands. Across the Channel, the A400M is at a similar stage with the French Air Force: 5 out of 50 have been delivered, the aircraft has seen active service in Africa, but it is still being trialled and evaluated = not yet in 'squadron service'. Later this year, the RAF will be at a similar stage with the A400M.
     
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