Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

Star-20 (Altair-3A)

Solid fuel engine for upper stage applications

Name Manufacturer Mass (kg) Mass. Empt (kg) Mass. Prop (kg) Prop Mass Fract Prop Casing Thrust Vac (kN) ISP (sec) Tot. Imp. (kNs) Burn (s) Diam (m) Length (m) Remark
Star-20-Spherical (TE-M-251) Thiokol 123.0 8.1 114.8 0.934 Solid FG ? 234.0 296.25 ? 0.50 ?
Star-20 (TE-M-640-1) Thiokol 300.9 27.7 273.2 0.908 Solid FG ? 286.5 771.77 ? 0.50 ?
Star-20A (TE-M-640-3) Thiokol 314.3 28.3 286.0 0.910 Solid FG ? 291.9 822.48 ? 0.50 ?
Star-20B (TE-M-640-4) Thiokol 306.7 32.8 273.8 0.893 Solid FG ? 289.1 776.53 ? 0.50 ?

FG = Fibreglass