Ptolemy Class

Transport / Tug

Universe :	Prime Timeline
Affiliation :	Federation
Class Name :	Ptolemy Class [1]
Type :	Tug [1]
Unit Run :	NCC 3801 USS Ptolemy [1] - Retired NCC 3802 USS Al Rashid [1] - Retired NCC 3803 USS Anaxagoras [1] - Retired NCC 3804 USS Anaximander [1] - Retired NCC 3805 USS Aristarchus [1] - Retired NCC 3806 USS Ibn Daud [1] - Retired NCC 3807 USS Eratosthenes [1] - Retired NCC 3808 USS Galllei [1] - Retired NCC 3809 USS Hipparchus [1] - Retired NCC 3810 USS Ulugh Beg [1] - Retired NCC 3811 USS Philolaus [1] - Retired NCC 3814 USS Hevelius [1] - Retired NCC 3815 USS Copernicus [1] - Retired NCC 3816 USS Keppler [1] - Retired NCC 3818 USS Flamarion [1] - Retired NCC 3819 USS Schiaparelli [1] - Retired NCC 3820 USS Deslandres [1] - Retired NCC 3821 USS Brahe [1] - Retired NCC 3822 USS Newton [1] - Retired NCC 3823 USS Riccioli [1] - Retired NCC 3824 USS Cassini [1] - Retired NCC 3825 USS Donati [1] - Retired NCC 3826 USS Kidinnu [1] - Retired NCC 3827 USS Piazzi [1] - Retired NCC 3828 USS Leverrier [1] - Retired NCC 3829 USS Luyten [1] - Retired NCC 3830 USS Messier [1] - Retired NCC 3831 USS Doppler [1] - Retired NCC 3832 USS Gaillot [1] - Retired NCC 3833 USS Halley [1] - Retired NCC 3834 USS Holden [1] - Retired NCC 3835 USS Jeffrey [1] - Retired NCC 3836 USS Kuiper [1] - Retired NCC 3837 USS Oort [1] - Retired NCC 3839 USS Savary [1] - Retired NCC 3840 USS Struve [1] - Retired NCC 3841 USS Vogel [1] - Retired NCC 3842 USS Airy [1] - Retired NCC 3843 USS Bondi [1] - Retired NCC 3844 USS Chauvenet [1] - Retired NCC 3845 USS Eddington [1] - Retired NCC 3846 USS Gautier [1] - Retired NCC 3847 USS Hencke [1] - Retired NCC 3848 USS Hubble [1] - Retired NCC 3849 USS Leavitt [1] - Retired NCC 3850 USS Peale [1] - Retired NCC 3851 USS Rittenhouse [1] - Retired NCC 3852 USS Secchi [1] - Retired NCC 3853 USS Tombaugh [1] - Retired NCC 3854 USS Wolaston [1] - Retired NCC 3855 USS Baade [1] - Retired NCC 3856 USS Campell [1] - Retired NCC 3857 USS Columbo [1] - Retired NCC 3859 USS Goldricke [1] - Retired NCC 3860 USS Herschell [1] - Retired NCC 3861 USS Humanson [1] - Retired NCC 3862 USS Klepstra [1] - Retired NCC 3863 USS Mitchell [1] - Retired NCC 3865 USS Ross [1] - Retired NCC 3866 USS Shklovsky [1] - Retired NCC 3867 USS Toscanelli [1] - Retired NCC 3868 USS Wright [1] - Retired NCC 3869 USS Bayer [1] - Retired NCC 3870 USS Carrington [1] - Retired NCC 3871 USS Kruger [1] - Retired NCC 3872 USS Fracastor [1] - Retired NCC 3873 USS Hale [1] - Retired NCC 3874 USS Hirayama [1] - Retired NCC 3875 USS Jansky [1] - Retired NCC 3876 USS Laplace [1] - Retired NCC 3877 USS Newcomb [1] - Retired NCC 3879 USS Sabine [1] - Retired NCC 3881 USS Van De Kamp [1] - Retired NCC 3882 USS Von Zach [1] - Retired NCC 3883 USS Chamberlain [1] - Retired NCC 3884 USS Biela [1] - Retired NCC 3885 USS Dollfus [1] - Retired NCC 3886 USS Galle [1] - Retired NCC 3887 USS Hayashi [1] - Retired NCC 3888 USS Hubbard [1] - Retired NCC 3889 USS Kaula [1] - Retired NCC 3890 USS Lockyer [1] - Retired NCC 3891 USS Palitzsch [1] - Retired NCC 3892 USS Reber [1] - Retired NCC 3894 USS Swift [1] - Retired NCC 3895 USS Walker [1] - Retired NCC 3896 USS Apian [1] - Retired NCC 3897 USS Brouwer [1] - Retired NCC 3898 USS Clark [1] - Retired NCC 3899 USS Dreyer [1] - Retired NCC 38S9 USS Encke [1] - Retired NCC 3900 USS Dollond [1] - Retired NCC 3901 USS Goldreich [1] - Retired NCC 3902 USS Hertzsprung [1] - Retired NCC 3903 USS Irwin [1] - Retired NCC 3904 USS Kohlschutter [1] - Retired NCC 3905 USS Moulton [1] - Retired NCC 3907 USS Russell [1] - Retired NCC 3908 USS Slipher [1] - Retired NCC 3909 USS Van de hulst [1] - Retired NCC 3910 USS Young [1] - Retired NCC 3911 USS Bessel [1] - Retired NCC 3912 USS Challis [1] - Retired NCC 3913 USS Flamsteed [1] - Retired NCC 3914 USS Henderson [1] - Retired NCC 3915 USS Huggins [1] - Retired NCC 3916 USS Lagrange [1] - Retired NCC 3917 USS Olbers [1] - Retired NCC 3918 USS Plaskett [1] - Retired NCC 3919 USS Sandage [1] - Retired NCC 3920 USS Schawbe [1] - Retired NCC 3921 USS Wolf [1] - Retired NCC 3922 USS Bode [1] - Retired NCC 3923 USS Chandrasekher [1] - Retired NCC 3924 USS Eichelberger [1] - Retired NCC 3925 USS Adams [1] - Retired NCC 3926 USS Hall [1] - Retired NCC 3927 USS Gold [1] - Retired NCC 3928 USS Hoyle [1] - Retired NCC 3929 USS Jeans [1] - Retired NCC 3930 USS Langley [1] - Retired NCC 3931 USS Pierce [1] - Retired NCC 3932 USS Roques [1] - Retired NCC 3933 USS Shapley [1] - Retired NCC 3934 USS Todd [1] - Retired NCC 3935 USS Baum [1] - Retired NCC 3936 USS Carpenter [1] - Retired NCC 3937 USS Delambre [1] - Retired NCC 3938 USS Frost [1] - Retired NCC 3939 USS Lowell [1] - Retired NCC 3940 USS Van Maanen [1] - Retired NCC.3812 USS Pythagoras [1] - Retired NCC.3813 USS Thales [1] - Retired NCC.3817 USS Ambartsumian [1] - Retired NCC.3838 USS Pritchett [1] - Retired NCC.3864 USS Pickering [1] - Retired NCC.3878 USS Popper [1] - Retired NCC.3880 USS Schmidt [1] - Retired NCC.3893 USS Scheiner [1] - Retired NCC.3906 USS Pogson [1] - Retired 3 have been lost in all. 137 have been retired from service.
Commissioned :	2247 - 2255, remained in service until 2321
Dimensions :	Length : 222 m [2] Beam : 127.1 m [1] Height : 66 m [1] Decks : 12
Mass :	274,000 metric tons
Crew :	220 [1]
Armament :	4 [1] x Type VI phaser bank [1], total output 1,500 TeraWatts
Defence Systems :	Standard shield system, total capacity 54,000 TeraJoules Standard Monotanium Single hull. Standard level Structural Integrity Field
Warp Speeds (TOS scale) :	Maximum Cruise : 6 [1] Maximum Rated : 6 [1] for 2 hours.
Strength Indices : (Galaxy class = 1,000)	Beam Firepower : 30 Torpedo Firepower : - Weapon Range and Accuracy : - Shield Strength : 20 Hull Armour : 5 Speed : 113 Combat Manoeuvrability : 6,890
Overall Strength Index :	39
Diplomatic Capability :	Specialized facilities can be towed as required
Expected Hull Life :	60
Refit Cycle :	Minor : 1 year Standard : 1 years Major : 20 years

Notes

The Ptolemy class tugs are based on the standard Starfleet hull components of the time, but replaced the engineering hull of the Constitution class with a connector at the base of the connecting neck. This could accept a variety of large pods for hauling cargo, passengers, or other stores. [1]

The pods hauled by the Ptolemies were divided into five main marks. Each were given their own NCC numbers, in line with their Mark number; Mark I pods were designed for bulk liquid carrying, and were given NCC numbers in the 1000 range. Mark II carried dry bulk goods and were given NCC numbers in the 2000 range. Mark III reefers carried refrigerated goods with numbers in the 3000 range, Mark IV "star liners" carried personnel and were given numbers in the 4000 range, and Mark V general cargo hulls received numbers in the 5000 range. [1]

The ships proved invaluable in service, and continued to ply the space-lanes of the Federation for decades. By 2307 they were beginning to reach the end of their operational lives, and Starfleet began to retire them in this year. The last ships were due to retire in 2315, but Starfleet retained six of these ships for a further few years in order to provide a stopgap due to delays in their replacements. The last of the Ptolemy class vessels was retired in 2321.

Colour key

References

#	Series	Season	Source	Comment
1			Star Trek - Starfleet Technical Manual
2			Star Trek - Starfleet Technical Manual	Stated on page 01:04:16

Comments

This ship is almost exactly as described in the Starfleet Technical Manual by Franz Joseph. The strengths of the weapons and defence systems are my own invention. The mass has been raised from the the TM's figure of 126,500 metric tons; since TOS establishes that the Constitution is far more massive than the TM suggests, I have raised the mass of all these ships in line with the canon figure.

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Last updated : 1 Oct 2021

Book :	Star Trek - Starfleet Technical Manual
Comment :	Stated on page 01:04:16