S.S. Botany Bay the sleeper ship that carried Khan Noonien Singh and his band of geneticly engineered warlords into space
Image scanned from Star Trek Encyclopedia by Michael Okuda

In 1995, research began in the use of "sleeper ships" to transport the first humans to destinations such as Mars (Sol IV) without having to carry many supplies. The DY-100 was the first class of these ships. One of the first, experimental models of this ship class, the S.S. Botany Bay earned the distinction of being the ship stolen by Khan Noonian Singh and his followers in order that they could escape Earth after their reign in the Eugenics War.

The DY-100 class of ships was the first mass produced ship design. Most of them were used to ferry supplies from Earth to the first Lunar Colonies. The usefullness of the sleeper ship types of of DY-100 ships came to an end when advances in fusion research allowed for faster travel to other planets.

S.S. Mariposa launches from Earth, carrying a group of colonists into deep space
Image scanned from Star Trek Spaceflight Chronology by Fred Goldstein

The DY-100 class of ships and its derivatives, such as the DY-500, resembled the Terran oceangoing submarines of the time. It consisted of a long, cylindrical main body with a conning tower placed towards the conical, forward end. The rear, engineering section varied from ship to ship sometimes, depending on advances in current technology. Some were fitted with strap on booster rockets and maneuvering fins for launch from Earth's surface. The DY-100's were also equipped with removeable, interchangeable cargo modules which allowed for a wide variety of missions.

Deck schematic of the DY-100 class explorer
Image created by Paul C. Cargile from his website Cargile's Starship Designs

The following specifications apply to the S.S. Botany Bay:

Length: 80 m
Beam: 18.37 m
Draught: 27.9 m
Mass: 2.72 million kg
Conning tower: 12.3 m X 7.4 m X 4.9 m
Cargo Module: 27 m X 5.5 m X 6.57 m for each module

Propulsion

:

3 Fission Rockets

Chemical RCS Thrusters

Strap On Solid Rocket Boosters (Similar to Enterprise class Space Shuttle

Performance:

Maximum velocity: 80,000 km/hr

Cruising velocity: 55,000 km/hr

Maximum Range: 387 million km (after refit to sleeper model)

Standard Range: 900,000 km (Standard for the class)

Typical Voyage: 9.2 hr (Earth-Moon)

Maximum Voyage: 934 days (Earth-Mars-Asteropolis-Mars-Earth)

Crew: 2
Passengers: 22

This image shows a size comparison with the Constitution and Daedalus classes on the left and the Enterprise class space shuttle on the right. The two comparisons are not to scale
Image created by Paul C. Cargile from his website Cargile's Starship Designs