Re: American Fuel Won The Battle of Britain
 

[quote=Tapper;85920]Its called humour, and sarcasm....something we English are well known for having.


Really? As a 69 year old native of the UK I would call it British humour. My use of the terminology "Can I detect the merest trace of anti-American sentiment?" rather indicates that I was not attempting to severely admonish the previous posters but gently put it back on topic, wouldn't you say?

Re: American Fuel Won The Battle of Britain
 

Real, honest humour is so rare on the internet. I dare say that some of what passes for it on other forums can and does get people kicked off. Thanks for bringing back a taste of it.






Regards,
Ed

Re: American Fuel Won The Battle of Britain
 

Hello
yes, British began built their own 100 oct production capacity before the war but also buy 100 oct from USA. But own production and diversion of sources were keys to RAF decision to began to switch to 100 oct from 87 oct.

100 oct fuel gave better performance only below full throttle height by allowing the use of higher boost. So to get most out of it one need engines with very effective superchargers.

Juha

Re: American Fuel Won The Battle of Britain
 

No thought for the tanker crews of all nations who got the fuel to the UK. If anything I thought the production of Liberty ships at the height of the U-Boot war might have been a one of many genuine US achievements to raise as it ensured this country survived..

Re: American Fuel Won The Battle of Britain
 

Surely the use of higher boost produces a higher full-throttle height. Therefore the use of 100-octane fuel was beneficial at all altitudes, including altitudes unavailable with 87 octane?

Re: American Fuel Won The Battle of Britain
 

Hello Graham
To my understanding not, supercharger simply could hold the higher boost up to certain altitude and at the FTH and above it the boost pressure was same whether one used 87 oct or 100 oct. That was one reason why better superchargers were so important.

Juha

Re: American Fuel Won The Battle of Britain
 

Suggesting that for a given supercharger, the greater the boost the lower the FTH? So the benefit of 100 octane at the limits of the envelope is only seen as an extension of the maximum speed below the FTH of the lower boost? OK, I can see that, and my previous statement is wrong, but 100 octane would still provide additional power (and hence benefits in climb, sustained turns and acceleration) within the envelope.

Re: American Fuel Won The Battle of Britain
 

Hello Graham
I have no reason to disagree with your statement.

Juha