Related Clues:

• One floated up the river at last, but not in the water
• The stupid colonel cannot march properly in the end or in the air
• For a germ, an enormous floater (8)
• It used to go right up, up the river at last
• Super Bowl hoverer
• Goodyear advertising icon
• "Black Sunday" airship
• Eponymous German aeronaut
• Former airship
• Goodyear flier
• Advertising vehicle
• Count as an old gasbag
• Colonel's aircraft
• 25 balloon initially when not blown up
• Zeppelin can be made to do a turn