I worked with balloon boats Gulf Sentry and Windward Sentry at certain locations around the Bahamas when I ran FCI's. Those RADAR Balloons would extend thousands of feet into the air and could pick out a needle in a haystack sitting on the back deck of a freighter a 100miles away.
The FCI's weren't as fast as some but it sure could handle the seas, racing across the tops of the waves like as rocket sled. What a great time that was. Officially FCI was short for Fast Coastal Interceptor. But like many government operations they soon became known as the Fast Cash Incinerator.