[Healeys] Curved/quiet or Straight/efficent

Patrick & Caroline Quinn p_cquinn at tpg.com.au
Fri Jan 24 14:52:54 MST 2020

Hello Perry


Thanks for that.


I know the Marketing Manager for Davies Craig and he sent me the same, however being a cynical sort of bloke I don’t always want to take the view of one side.


Hoo Roo


Patrick Quinn


From: Perry [mailto:healeyguy at aol.com] 
Sent: Saturday, 25 January 2020 8:41 AM
To: Patrick & Caroline Quinn
Cc: healeys at autox.team.net
Subject: RE: [Healeys] Curved/quiet or Straight/efficent


Sir Patrick

Please peruse the web site at: https://daviescraig.com.au/blog/straight-vs-curved-fan-blades-dispelling-the-myth

They must have the best info on the globe since they are located down under! 😊




Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986>  for Windows 10


From: Patrick  <mailto:p_cquinn at tpg.com.au> & Caroline Quinn
Sent: Friday, January 24, 2020 4:27 PM
To: healeys at autox.team.net
Subject: [Healeys] Curved or Straight




Once again I am about to investigate the engine cooling of the Healey Duncan. Nothing highly unusual with it in that it’s a Riley 2.4 litre engine and unpressurised.


Part of the process is to replace the existing Kenlowe electric fan with a more modern unit. The Kenlow sits over an inch from the radiator surface while a modern unit should only be a few millimetres. Of course it was never fitted with an electric fan when new, but it’s simply not coping with the warmer Australian climate.


I will be doing all sorts of wonderful things like removing the cylinder head to replace the cooling tube between number two and three combustion chamber, refurbishing the radiator, rodding the block etc etc.


The question that’s on my mind concerns whether to install an electric fan with curved or straight blades. Australian manufacturer Davies Craig says that straight blades are best, but they would say that as that’s what they make.


Anyone undertaken any research as to what’s the most efficient?


Hoo Roo


Patrick Quinn

Blue Mountains, Australia

Where it’s raining again - wonderful


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