[Healeys] Camshaft Question -- Now MPG

[Bob Spidell]

I saw that show too (I never miss anything on the Blackbird--my favorite aircraft). 

At very high speeds the engines were essentially ramjets (now THAT'S overdrive). 

Bob 

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Bob Spidell - San Jose, CA 



On 06/10/2011 04:22 PM, Bob Spidell wrote: 
> Power required increases proportional to the square of the speed increase; e.g. it takes four times the power and, roughly, the fuel to go twice as fast. 
I believe Kelly Johnston's SR-71 was the exception to that rule. I was 
watching an interview with two of the SR-71 pilots on the History 
Channel (IIRC). They said that when their fuel was getting low, they'd 
throttle up. I think that thing was only happy when it was screaming.