The design and performance of a motor developed for the first stage of the NASA SCOUT-D and E launch vehicles are discussed. The motor delivers a 30% higher total impulse and a 35 to 45% higher payload mass capability than its predecessor, the Algol IIB. The motor is 45 in. in diameter, has a length-to-diameter ratio of 8:1 and delivers an average 100,000-lb thrust for an action time of 72 sec. The motor design features a very high volumetrically loaded internal-burning charge of 17% aluminized polybutadiene propellant, a plasma-welded and heat-treated steel alloy case, and an all-ablative plastic nose liner enclosed in a steel shell. The only significant development problem was the grain design tailoring to account for erosive burning effects which occurred in the high-subsonic-Mach-number port. The tests performed on the motor are described.
Development of the Algol III solid rocket motor for SCOUT.
Society of Automotive Engineers, National Aeronautic and Space Engineering and Manufacturing Meeting
1971-09-01
Conference paper
No indication
English
Development of the Algol III Solid Rocket Motor for Scout
SAE Technical Papers | 1971
|Fourth-Stage Scout Rocket Motor Program
NTIS | 1965
|