Europropulsion / AVIO' solid fuel motors for VEGA rockets

 

Designation

 Zefiro-9 Zefiro-23 Zefiro-40 Zefiro-40C P-80 P-100 P-120 P-120C

Manufacturer

AVIO

Europropulsion

Use for

 VEGA VEGA VEGA-E VEGA-C; VEGA-E VEGA VEGA-E VEGA-C VEGA-C; VEGA-E

Overall length (m)

 3.70 6.80 9.50 8.07 9.60 11.70 13.20 14.00

Diameter (m)

 1.91 1.91 1.91 2.36 3.00 3.00 3.00 3.40

Mass (t)

 12.00 26.56   40.477 95.02   ~120 155.027

Propellant

 HTPB-1912 HTPB-1912 HTPB HTPB HTPB-1912 HTPB HTPB HTPB-2013

Mass of propellant (t)

 10.567 23.814 ~36 36.239 87.71 ~100 ~125 141.634

S.L. Thrust (kN)

max

 - - - - 2,799.5 ? ? 4,057.9

average

 - - - - 2,034.9 ? ? 2,719.2

Vac Thrust (kN)

max

 317.0 1,120.0 ? 1,304.0 3,015.0 ? ~4,000 4,346.0

average

 256.4 871.0 ? 1,122.7 2,191.4 ? ~2800 2,912.7

S.L. Isp (Ns*kg.)

 - - - - 2550     2550

Vac Isp (Ns*kg)

 2902 2819 ? 2878 2746     2731

Burn time (sec)

  119.6 77.1 ? 92.9 109.8     132.8

Average Combustion (tons/sec)

 0.0884 0.3089 ? 0.3897 0.7981     1.0665

Vac Total Impulse (MN*sec)

 30.67 67.15 ? 104.30 240.47 ? ? 386.81

 

Dimensions

 

Thrust path diagram