Ptolemy class Keppler variant (2276 upgrade).

Ptolemy class history and variants, by Andrew Brown:

  • 1. There are 140 units, all are built as they are desperately needed.
  • 2. It takes 18 months or 1.5 years to produce each unit.
  • 3. This is 210 years of work for one shipyard. To produce all units in ~14 years requires 15 shipyards.
  • 4. 15 units are thus produced every 1.5 years.

  • - The entire Batch I (Ptolemy) is built in the first run and introduced into service around January 2253.
  • - The entire Batch II (Keppler) is built in the second run and introduced into service around July 2254.
  • - Batch III (Doppler) is built from the third to seventh runs (five runs) and introduced into service from January 2256 to July 2260.
  • - Batch IV (Dollond) is built from the eighth to tenth runs (three runs) and introduced into service from January 2262 to January 2265.

    - 2250-01: Batch I begins building.

    - 2251-07: Entry in to service. No in-service operational data available for design modifications or improvements. Batch II begins building to original Batch I specs.

    - 2253-01 - 1.5 years in service: With only fifteen (15) ships they are being used for high priority cargoes on runs to fully-developed sites such as starbases or industrialised worlds with spaceborne transfer stations. As such, the cargo transfer capabilities and capacity of the existing design specs are deemed adequate to this task. The first run of Batch III thus begins construction to the original Batch I design specs.

    - 2254-07 - 3.0 years in service: Now with thirty (30) ships in service they are beginning to be used for less developed worlds, but the amount of supplies being delivered to each are less and so organic cargo transfer capabilities and capacity of the existing design specs are deemed adequate to this task also. The second run of Batch III thus begins construction to the original Batch I design specs.

    - 2260-07: 9.0 years in service: Now with ninety (90) ships in service they are being used for all possible duties and routes. It has become apparent over the last few years that the organic cargo transfer capabilities and capacity of the existing design specs are no longer adequate in frontier or undeveloped regions with no cargo infrastructure of their own, and several cargo shuttles and additional Workbees would be a massive asset to transport/tug operations. Several design modifications are trialled but the simplest and most efficient way from a construction standpoint is to add in a shuttlebay superstructure rather than entirely reconfigure the internal layout of the primary hull. The bay is placed at the base of the now-shortened dorsal neck on the cargo clamp, and hosts four double-sized cargo shuttles, a standard admin shuttle, and additional Workbee stowage and recharge slots. The forward ventral saucer shuttlebay is now exclusively used for Workbees, with its own number of recharge slots expanded.

    - 2262-01 - 10.5 years in service: Now with ninety-nine (99) ships in service. The first run of Batch IV are built to the new design specs incorporating a shuttlebay superstructure.

    Andy's notes:

    In conclusion, the Batch IV Doppler sub-class is the only one that will be externally different from Batches I to III. This kinda works out as I can promote "my" Doppler as also having "expanded hanger facilities", tying in or at least giving a nod to the Doppler Mk VI-C "heavy transport tug" orthos. It also lets your Hirayama be sans external shuttlebay.

    Though, I think that over the life cycle of the Ptolemy class, those ships that do get pulled in for uprating would have this hanger bay fitted.

    This would lead to greater ship diversity and individuality. We have in our fleet:

  • 1. Original non-uprated Ptolemys.
  • 2. "Dopplerised" non-uprated Ptolemys.
  • 3. Uprated Ptolemys.
  • 4. "Dopplerised" uprated Ptolemys.
  • 5. Phase II Ragnoks.
  • 6. TMP Denevas.

    Length, draught, beam:

  • Primary hull length: 128 metres
  • Primary hull draught: 32.5 metres
  • Primary hull beam: 127.1 metres
    (same as Achernar class)

    Blueprints of comparable technology.

  • Nacelle length: 164.3 metres
  • Nacelle draught: 19.6 metres
  • Nacelle beam: 13.5 metres
    (LN-52 SCNN same as Achernar class upgrade)

    Crew: 150 (21 officers and 129 enlisted crew)

  • Computers: “Fasfax” Duotronic II, Ferranti-Mnemonics, Reading, Berkshire.
  • Propulsion: warp: Dennison/Westinghouse, San Francisco.
    Impulse: Scarbak Propulsion Systems, Cairo.
    “Asaks” Chemical reaction control system, Orage Ijek, Aksajak, Andoria.
  • Life support: CT-3/Centris artificial gravity generator.
    “Coraza” radiation shielding, Critobal SM/S, Manila.
    “Ambrix” Waste regeneration systems, Jullundur-Lahore Ltd, Mumbai.

    Images of the U.S.S. Keppler with hybridised refurbishment by my good friend Andrew Brown. Used with permission.

    NCC Registry Name Notes
    3801 Ptolemy Class ship. Authorised stardate 0965.
    3802 Al-Rashid
    3803 Anaxagoras
    3804 Anaximander
    3805 Aristarchus
    3806 Ibn Daud
    3807 Eratosthenes
    3808 Galilei
    3809 Hipparchus
    3810 Ulugh Beg
    3811 Philolaus
    3812 Pythagorus
    3813 Thales
    3814 Hevelius
    3815 Copernicus Lost. Replaced with Oberth class NCC 640.
    3816 Keppler Sub-class authorised stardate 3640.
    3817 Abartsumian
    3818 Flamarion
    3819 Schiaparelli
    3820 Deslandres
    3821 Brahe
    3822 Newton
    3823 Riccioli
    3824 Cassini
    3825 Donati
    3826 Kidinnu
    3827 Piazzi
    3828 Leverrier
    3829 Luyten
    3830 Messier
    3831 Doppler Sub-class TMP refit. Authorised stardate
    3832 Gaillot
    3833 Halley
    3834 Holden
    3835 Jeffrey
    3836 Kuiper
    3837 Oort
    3838 Pritchett
    3839 Savary
    3840 Struve
    3841 Vogel
    3842 Airy
    3843 Bondi
    3844 Chauvenet
    3845 Eddington
    3846 Gautier
    3847 Hencke
    3848 Hubble
    3849 Leavitt
    3850 Peale
    3851 Rittenhouse
    3852 Secchi
    3853 Tombaugh
    3854 Wolaston
    3855 Baade
    3856 Campbell
    3857 Columbo
    3858 Encke
    3859 Goldricke
    3860 Herschell
    3861 Humanson
    3862 Klepstra
    3863 Mitchell
    3864 Pickering
    3865 Ross
    3866 Shklovsky
    3867 Toscanelli
    3868 Wright
    3869 Bayer
    3870 Carrington
    3871 Kruger
    3872 Fracastor
    3873 Hale
    3874 Hirayama 'Hawkins' Forge'.
    3875 Jansky
    3876 Laplace
    3877 Newcomb
    3878 Popper
    3879 Sabine
    3880 Schmidt
    3881 Van Der Kamp
    3882 Von Zach
    3883 Chamberlain
    3884 Biela
    3885 Dollfus
    3886 Galle
    3887 Hayashi
    3888 Hubbard
    3889 Kaula
    3890 Lockyer
    3891 Palitzsch
    3892 Reber
    3893 Scheiner
    3894 Swift
    3895 Walker
    3896 Apian
    3897 Brovwer
    3898 Clark
    3899 Dreyer

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