Starfleet has three main classes of frigate: Apollo class, Phobos class and Okinawa class frigate/corvette. The frigates are the mainstay of Starfleet, patrolling frontiers, guarding neutral zones, protecting commercial freight traffic and preventing piracy and smuggling. Often the frigate can be the first command of a Starfleet officer of rank Lieutenant Commander or Commander.

The Phobos class is a modernised version of the Andorian-designed Loknar class. The frigate has nine decks. The U.S.S. Gunterman, NCC 8506 named for fallen US soldier PFC Hannah L. Gunterman, is one such member of the class. The pioneer U.S.S. Phobos, NCC 2786, is still in service. The design was submitted in 2268, with the keel launched shortly after. By the end of 2269 the spaceframe was almost completed and the warp coil designs are approved. The bridge module and computer systems are delivered in 2270. The primary hull is completed in 2271 and she left spacedock in 2272. In 2273 warp stress markings were added and deep space assessments commenced. U.S.S. Phobos, NX 2786 was finally commissioned in 2274.

Phobos class heavy frigate technical details:

Length: 315 metres

Beam: 141 metres

Height: 57.3 metres

Decks: 9

Officers 20

Enlisted 140

Auxiliary Craft: 2 Shuttlecraft

Decks:

Deck 1: Main Bridge, Captain's Ready Room, Umbilical Cord Receiver.

Deck 2: Officer's Quarters, VIP Quarters, XO's Office, Warp Core, Computer Core and Control Room, Mess Hall.

Deck 3: Crew Quarters, Diplomatic Facilities, Transporter Rooms 1 & 2, Mess Hall, , Computer Core.

Deck 4: Sickbay, CMO's Office, Science Lab, Research labs, Science storage, CSO's Office, FCO's Office,

Deck 5: Main Engineering (upper), Production Bay, Gymnasium, Phaser Range, Docking Ports, Deuterium Storage, Anti Matter Storage, Life Support Systems.

Deck 6: Secondary Bridge, CTO's office, Security Dept/Brig.

Deck 7: Cargo Bay , Cargo Transporter, Marine Barracks, Manufacture and Supply, Weapon Controls Storage for factory process.

Deck 8: Shuttlebay 1-2, Hangar, Stellar Cartography, Waste Refinery.

Deck 9: Weapons Pod: Forward Torpedo Launcher 1-5, Aft Torpedo launder 1-3, Torpedo Storage, Anti-matter Storage.

Warp reactor: 1 Mark-VIII 700-cochrane warp reactor

Warp nacelles: 2

Cruising speed: Warp 6.5

Maximum speed: Warp 7.5

Emergency speed: Warp 8.9 (for 3 hours)

Impulse reactors/power generators: 2 Mark VIII fusion

Impulse drive ports: 2

Phasers 10 Type-VII Phaser Banks (5 ports)

Torpedo Launchers: 4 (3 Fore, 1 Aft)

Photons: 50

Shields: Class 5 hull-conforming shield system

Hull: Single-layer monotonium-duranium

Tractor Beams: Class III

List of Loknar class frigates, now refit to Phobos specifications: (Not every member listed)

Registry Number	Name	Notes	Author's notes
2700	Loknar
2701	Ahkeil
2702	Vernol
2703	Trantis
2704	Morgan City
2705	Farside
2706	New America
2707	Fife
2708	Kosk
2709	Borga
2710	Peking
2711	Epcot
2712	Aldebaran
2713	Proxima
2714	Antares
2715	Argus City
2716	New York
2717	Boridi
2718	Moscow
2719	Tokyo
2720	Corinth IV
2721	Daran V
2722	Paris
2723	Elas
2724	Troyius
2725
2726	Rome
2727	Los Angeles
2728	Ekos
2729	Yonada
2730	Makusia
2731	Berlin
2732	Opkapi
2733	Aurelia
2734	Ciarinae II
2735	Antos IV
2736	Arcannis
2737	Mordensia
2738	Chicago
2739	Deneb Clar
2740	Gaikos
2741	Sydney
2742	Halk
2743	Ilyra
2744	Mjorn
2745	Alondra
2746	Carinae V
2747	Argelia
2748	Lactra
2749	London
2750	Deneva Ra
2751	Izar
2752	Titan
2753	Rhea
2754	Helios
2755	Capor Bana
2756	Houston
2757	Rio De Janiero
2758	Lavinius
2759	Dallas
2760	Irilia
2761	Karrik Al Van
2762	Thefel
2763	Ptarth
2764	Alpha Colony
2765	Altair VI
2766	Ariannus
2767	Cairo
2768	Coridan
2769	Cygnia Minor
2770	Drox
2771	Toronto
2772	Trifis
2773	Bondorant
2774	Garros
2775	Janus Colony
2776	Iotia
2777	Tryla
2778	Vladivostok
2779	Noma Ra Den
2780	New Delphi
2781	Salos
2782	Thuphylla
2783	Moldens
2784	Mantilles
2785	Sogon
2786	Phobos	First refit member, 2274.
2787	Luna
2788	Johannesburg
2789	Stockholm
2790	Fall Den
2791	Que Dane
2792	Manon
2793	Jezar
2794	Hobbiton
2795	Hong Kong
2796	Caitos Prea
2797	Mulandra
2798	Kism
2799	Tog
	Loki
8506	Gunterman	Seen in Star Trek: Of Gods and Men. Shuttlecraft Leah.
	Cerberus	2303

Author's Notes:

Thanks to NEO database website for information on the Phobos class and to Star Trek: Of Gods and Men for U.S.S. Gunterman.