Captain Baktra

From Who's Who in the Legion of Super-Heroes 1:

The Captain first encountered the Legion when the sea cargo-craft he was piloting was attacked by a flier which released a rocket-powered chain that grappled and unbalanced the huge water-hovercraft. The Captain and his crew were saved from harm by the Legionnaires, but the ship's cargo was hijacked by the pirate craft, secretly operated by Grimbor. The sealed cargo was a crystal with which Grimbor powered his Earth chains. Captain Baktra, who had always had a great fear of water and could not swim, never recovered from this incident and requested land duty.