Sgt. Pappy
Airman 1st Class
- 197
- Jun 7, 2006
After looking some stuff up, I've found that the PN scale states that the 100 grade octane gives 100% power, while the 130 grade would give 130%, and 150, 150% and so on.
My question is: How would an F4U perform given the same fuel grade as the Spitfire, that is, 100 grade as opposed to the US 130 grade? Is it really as simple as '30% worse than originally'? Or are the grades close enough to disallow a large throttle setting drawback (i.e. late Spitfires had a throttle wall block which could be opened if the Spit was using 150 grade or higher, but the wall had to be closed if under 150 grade)?
Thanks for the help!
My question is: How would an F4U perform given the same fuel grade as the Spitfire, that is, 100 grade as opposed to the US 130 grade? Is it really as simple as '30% worse than originally'? Or are the grades close enough to disallow a large throttle setting drawback (i.e. late Spitfires had a throttle wall block which could be opened if the Spit was using 150 grade or higher, but the wall had to be closed if under 150 grade)?
Thanks for the help!