Microcosm. Inc. / Scorpius SL Comp. Sprite
Overall
Vehicle
Operational from  
  to  
Orbital flights   project
Payload weight t LEO 0.367
Gross liftoff weight t 38.80
Gross propellant weight t 31.94
Total length m 16.52
Max. diameter (span) m 3.41
Total liftoff thrust (s.l.) kN 544.5
Total impulse (vac) MN*s 96.9

Fairing

Total length m 2.51
Diameter m 1.14
Total weight t ?

Stage 3

Name    
  Length m 4.50
Diameter m 1.14
Liftoff weight t 1.723
Propellant weight t 1.142
Engines   Microcosm 2.3K
Propellant  

Kerosene (Jet-A)/LOX

Total thrust (vac) kN

10.2

Specific impulse (vac) N*s/kg 3167
Burn time s 350
Total impulse (vac) MN*s 3.6
Stage 2

Name

   
  Length m 11.12
Diameter m 1.14
Liftoff weight t 5.250
Propellant weight t 4.408
Engines   Microcosm 20K
Propellant  

Kerosene (Jet-A)/LOX

Total thrust (vac) kN 101.0
Specific impulse (vac) N*s/kg 3030
Burn time s 132
Total impulse (vac) MN*s 13.3

Stage 1

Name   6 pods
  Length m ~13
Diameter m 1.14
Liftoff weight t 31.047
Propellant weight t 26.386
Engines   Microcosm 20K
Propellant  

Kerosene (Jet-A)/LOX

Total thrust (s.l.) kN 544.5
Specific impulse (s.l.) N*s/kg 2721
Burn time s 132
Total impulse (vac) MN*s 80.0