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Napier Sabre in Typhoon



 
 
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  #1  
Old September 20th 03, 10:51 PM
Colin McGARRY
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Default Napier Sabre in Typhoon

Those interested in the Typhoon and it's engine can look up
www.cpmac.com/napier.html

a site on Napier and all it did from cars - printing machines -
minting machines- aircraft engines - train engines...

Picture gallery and forum
peterann2 (at) yahoo.fr
  #2  
Old September 20th 03, 11:26 PM
Ken Duffey
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Default

Colin McGARRY wrote:

Those interested in the Typhoon and it's engine can look up
www.cpmac.com/napier.html

a site on Napier and all it did from cars - printing machines -
minting machines- aircraft engines - train engines...

Picture gallery and forum
peterann2 (at) yahoo.fr


And here's me thinking that it was made by a company called Recalcitrant
!!

At least that's what they call it in all the books I have read - the
Recalcitrant Sabre !!

++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++
Ken Duffey - Flanker Freak & Russian Aviation Enthusiast
Flankers Website - http://www.flankers.co.uk/
++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++


  #3  
Old September 23rd 03, 06:01 AM
The Enlightenment
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Ken Duffey wrote in message ...
Colin McGARRY wrote:

Those interested in the Typhoon and it's engine can look up
www.cpmac.com/napier.html

a site on Napier and all it did from cars - printing machines -
minting machines- aircraft engines - train engines...

Picture gallery and forum
peterann2 (at) yahoo.fr


And here's me thinking that it was made by a company called Recalcitrant
!!

At least that's what they call it in all the books I have read - the
Recalcitrant Sabre !!



The engine as I understand it was rushed into service before the
engineers had fully debugged it and this was a source of many of the
engines early teething problems. WW2 ended befor production could be
transfered over to to "Much Maligned".

Sleeve valves worked very well on a whole range of Bristol engines
that powered a whole range of British aircraft with legendary
reliability. Initialy Napier punched the ports in the sleaves while
Bristol was carefully machinining them. Reliability improved when
Bristols' longer experience was introduced to Napier.

Sleave Valves reduce engine friction thus more than doubling both
engine life and sevice intervals while increasing efficiency. Their
large port area improves induction and exhaust flow also improving
efficiency and power.

Experimental Auto engines have been produced with standard poppet
valves for induction but a rotating sleave simply to get the reduced
wear and friction of this. (It breaks ststic friction at the point of
piston reversal)

Sleave valves reduce the diameter of radials and the width of flat
engines.

The Alternatives were incredibly complicated multiport heads on
multirow radials ( a japanese speciality ) or turbo-charging (an
american technique that required refractory alloys)
 




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