The Aerobee 150 was a liquid-fueled sounding rocket used at Wallops that could reach altitudes of 170 miles while carrying 150 pounds of equipment. Design changes and improvements to this rocket led to the development of the Astrobee F. The improved Astrobee F could reach altitudes of 125 miles while carrying 500 pounds of equipment. The Astrobee F and the Aerobee 150 had the same diameter, which allowed the same payloads to be flown on either without major changes.