1. rockets launched from high-altitude balloons to achieve greater heights with less fuel
Usage: aerospace; technical

Examples

• Scientists used rockoons to study the upper atmosphere in the 1950s.
• The rockoon system combined the advantages of balloons and rockets.
• Early space research relied on rockoons before satellite technology advanced.
• The balloon carried the rocket to 100,000 feet before the rockoon was fired.
• Rockoons provided a cost-effective way to reach the edge of space.
• Weather data was collected using instruments aboard the rockoons.