For the Dominican Republic national highway #8 see DR-8

The RD-8 engine was developed by Yuzhnoye Design Bureau

Yuzhnoye Design Bureau

Yuzhnoye Design Bureau , located in Dnipropetrovsk, Ukraine, is a designer of satellites and rockets, and formerly of Soviet intercontinental ballistic missiles established by Mikhail Yangel. Yuzhnoye's OKB designation was OKB-586....

 for the second stage of the Zenit rocket

Zenit rocket

Zenit is a family of space launch vehicles designed by the Yuzhnoye Design Bureau of Ukraine. Zenit was built in the 1980s for two purposes: as a liquid rocket booster for the Energia rocket and, equipped with a second stage, as a stand-alone rocket...

. It has four hinged chambers and a single turbopump unit. The fuel pair is LOX

Lox

Lox is salmon fillet that has been cured. In its most popular form, it is thinly sliced—less than in thickness—and, typically, served on a bagel, often with cream cheese, onion, tomato, cucumber and capers...

/kerosene

Kerosene

Kerosene, sometimes spelled kerosine in scientific and industrial usage, also known as paraffin or paraffin oil in the United Kingdom, Hong Kong, Ireland and South Africa, is a combustible hydrocarbon liquid. The name is derived from Greek keros...

. Vacuum thrust is 78.5 kN and its specific impulse in vacuum is 342 s.

The engine was designed for long service life (up to 4000 seconds),high reliability, and is the first smaller upper stage engine to use the staged combustion cycle.