The shuttle had been stripped down to its minimum mass, and was carrying just enough propellant for one hundred seconds of flight.

It consists of two satellites, one carrying extra propellant and batteries and equipped with a small robotic arm.

But we won't be carrying enough propellant or supplies for that.

Block I had slightly longer SPS fuel and oxidizer tanks which carried more propellant than Block II.

For rocket-powered SSTO, the main challenge is achieving a high enough mass-ratio to carry sufficient propellant to achieve orbit, plus a meaningful payload weight.

It is being designed to operate for 3 years, and will carry enough propellant for 7 years.

Remember, with laserboost you don't have to carry as much propellant and the vehicle can be much cheaper.

White was the first to control his motion in space with a Hand-Held Maneuvering Unit, which worked well, but only carried enough propellant for 20 seconds.

The stage carried enough propellant for the engine to burn for a total of four minutes.

Alternatively, some rockets such as for rescue scenarios or racing carry relatively little propellant and payload and thus need only a lightweight structure and instead achieve high accelerations.