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1926: Sydney vehicular ferry KARA KARA in the UK - later a veteran RAN auxiliary -courtesy Graeme Andrews. | by Kookaburra2011
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1926: Sydney vehicular ferry KARA KARA in the UK - later a veteran RAN auxiliary -courtesy Graeme Andrews.

4938. It's said you never learn unless you ask. A few entries back, with John Darroch's photo of HMAS KARA KARA further down this page [at pic NO. 4923] we had wondered aloud why the old ferry's funnel was so eccentrically tall. Kookaburra forwarded a few simple guesses, but for those who haven't noticed, maritime writer Graeme Andrews - ex-RAN and an ex-Sydney ferries skipper - has since arrived with the real explanation.

 

It's all about the tall funnels that were needed for some simple early steam boilers to create natural air induction to the boiler face, as against the electrically-powered fan forced air induction over more complex later engines, with their shorter funnels.

 

Simply told, we found it immensely instructive, and Kooka for one has gained a whole new understanding of historic steamships and their funnels [the old South Australian gunboat PROTECTOR, for instance, springs to mind, with the towering thin funnel that she once rolled, incredibly, into the Spencer Gulf].

 

Anyway, John Darroch's KARA KARA entry, and Graeme's explanation of the funnel, is here:

 

www.flickr.com/photos/41311545@N05/6291247896/in/photostream

 

Further to all that, Graeme has since sent this 1926 image of KARA KARA in her original shape as a newly-constructed, double-ended vehicular ferry built at Saltney in the U. K.

 

Photo: Courtesy Graeme Andrews, RAN 1955-1968, RANR 1980.

  

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Uploaded on October 31, 2011