Sparrow 1.5 is the lightweight workhorse at Vulcanlaunchsystems

Sparrow 1.5 has now been updated to allow you to choose your orbit and inclination making it a optimal choice for small payloads.

Sparrow 1.5 uses 4 Vulture 1 engines to give it a thrust of 1,986KN Allowing it to launch with a thrust to weight ratio of 1.77. Upon stage seperation (aided by a small separation motor) the second stage will burn till it's at the desired Apoapsis.

The first stage will flip round to face retrograde and reenter it will deploy atmospheric aerobrakes to stabilise itself and decelerate and then it will deploy chutes and automatically splashdown in the ocean a few hundred kilometres from the DSC.

The second stage will then reach apoapsis and then do the final circulization burn putting it into orbit.

The launch computer does everything automatically but the second stage will need assistance with timewarping

Remember don't put the apoapsis or periapsis below 200000 as that will result in the loss of the first stage.