0:30:01 > 0:30:04'From the industrial heart of Scotland...' Puff.
0:30:04 > 0:30:06'..to the remotest corners of the Hebrides...'
0:30:06 > 0:30:07Puff, puff, puff.
0:30:07 > 0:30:10'..the Clyde puffers were the workhorses of our coastal trade.'
0:30:10 > 0:30:13And it's a story that's almost been forgotten.
0:30:13 > 0:30:14Those years were amazing.
0:30:14 > 0:30:16Absolutely essential to island life.
0:30:16 > 0:30:18Wind and weather never stopped them.
0:30:18 > 0:30:20It was very, very hard work.
0:30:20 > 0:30:21Whoa!
0:30:21 > 0:30:24'Scotland's Vital Spark: The Clyde Puffer.'